updates

gcloud/virtenv/lib/python3.12/site-packages/cryptography/__about__.py

@@ -0,0 +1,17 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+
+from __future__ import annotations
+
+__all__ = [
+    "__version__",
+    "__author__",
+    "__copyright__",
+]
+
+__version__ = "42.0.7"
+
+
+__author__ = "The Python Cryptographic Authority and individual contributors"
+__copyright__ = f"Copyright 2013-2024 {__author__}"

gcloud/virtenv/lib/python3.12/site-packages/cryptography/__init__.py

@@ -0,0 +1,13 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+
+from __future__ import annotations
+
+from cryptography.__about__ import __author__, __copyright__, __version__
+
+__all__ = [
+    "__version__",
+    "__author__",
+    "__copyright__",
+]

gcloud/virtenv/lib/python3.12/site-packages/cryptography/exceptions.py

@@ -0,0 +1,52 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+
+from __future__ import annotations
+
+import typing
+
+from cryptography.hazmat.bindings._rust import exceptions as rust_exceptions
+
+if typing.TYPE_CHECKING:
+    from cryptography.hazmat.bindings._rust import openssl as rust_openssl
+
+_Reasons = rust_exceptions._Reasons
+
+
+class UnsupportedAlgorithm(Exception):
+    def __init__(self, message: str, reason: _Reasons | None = None) -> None:
+        super().__init__(message)
+        self._reason = reason
+
+
+class AlreadyFinalized(Exception):
+    pass
+
+
+class AlreadyUpdated(Exception):
+    pass
+
+
+class NotYetFinalized(Exception):
+    pass
+
+
+class InvalidTag(Exception):
+    pass
+
+
+class InvalidSignature(Exception):
+    pass
+
+
+class InternalError(Exception):
+    def __init__(
+        self, msg: str, err_code: list[rust_openssl.OpenSSLError]
+    ) -> None:
+        super().__init__(msg)
+        self.err_code = err_code
+
+
+class InvalidKey(Exception):
+    pass

gcloud/virtenv/lib/python3.12/site-packages/cryptography/fernet.py

@@ -0,0 +1,215 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+
+from __future__ import annotations
+
+import base64
+import binascii
+import os
+import time
+import typing
+
+from cryptography import utils
+from cryptography.exceptions import InvalidSignature
+from cryptography.hazmat.primitives import hashes, padding
+from cryptography.hazmat.primitives.ciphers import Cipher, algorithms, modes
+from cryptography.hazmat.primitives.hmac import HMAC
+
+
+class InvalidToken(Exception):
+    pass
+
+
+_MAX_CLOCK_SKEW = 60
+
+
+class Fernet:
+    def __init__(
+        self,
+        key: bytes | str,
+        backend: typing.Any = None,
+    ) -> None:
+        try:
+            key = base64.urlsafe_b64decode(key)
+        except binascii.Error as exc:
+            raise ValueError(
+                "Fernet key must be 32 url-safe base64-encoded bytes."
+            ) from exc
+        if len(key) != 32:
+            raise ValueError(
+                "Fernet key must be 32 url-safe base64-encoded bytes."
+            )
+
+        self._signing_key = key[:16]
+        self._encryption_key = key[16:]
+
+    @classmethod
+    def generate_key(cls) -> bytes:
+        return base64.urlsafe_b64encode(os.urandom(32))
+
+    def encrypt(self, data: bytes) -> bytes:
+        return self.encrypt_at_time(data, int(time.time()))
+
+    def encrypt_at_time(self, data: bytes, current_time: int) -> bytes:
+        iv = os.urandom(16)
+        return self._encrypt_from_parts(data, current_time, iv)
+
+    def _encrypt_from_parts(
+        self, data: bytes, current_time: int, iv: bytes
+    ) -> bytes:
+        utils._check_bytes("data", data)
+
+        padder = padding.PKCS7(algorithms.AES.block_size).padder()
+        padded_data = padder.update(data) + padder.finalize()
+        encryptor = Cipher(
+            algorithms.AES(self._encryption_key),
+            modes.CBC(iv),
+        ).encryptor()
+        ciphertext = encryptor.update(padded_data) + encryptor.finalize()
+
+        basic_parts = (
+            b"\x80"
+            + current_time.to_bytes(length=8, byteorder="big")
+            + iv
+            + ciphertext
+        )
+
+        h = HMAC(self._signing_key, hashes.SHA256())
+        h.update(basic_parts)
+        hmac = h.finalize()
+        return base64.urlsafe_b64encode(basic_parts + hmac)
+
+    def decrypt(self, token: bytes | str, ttl: int | None = None) -> bytes:
+        timestamp, data = Fernet._get_unverified_token_data(token)
+        if ttl is None:
+            time_info = None
+        else:
+            time_info = (ttl, int(time.time()))
+        return self._decrypt_data(data, timestamp, time_info)
+
+    def decrypt_at_time(
+        self, token: bytes | str, ttl: int, current_time: int
+    ) -> bytes:
+        if ttl is None:
+            raise ValueError(
+                "decrypt_at_time() can only be used with a non-None ttl"
+            )
+        timestamp, data = Fernet._get_unverified_token_data(token)
+        return self._decrypt_data(data, timestamp, (ttl, current_time))
+
+    def extract_timestamp(self, token: bytes | str) -> int:
+        timestamp, data = Fernet._get_unverified_token_data(token)
+        # Verify the token was not tampered with.
+        self._verify_signature(data)
+        return timestamp
+
+    @staticmethod
+    def _get_unverified_token_data(token: bytes | str) -> tuple[int, bytes]:
+        if not isinstance(token, (str, bytes)):
+            raise TypeError("token must be bytes or str")
+
+        try:
+            data = base64.urlsafe_b64decode(token)
+        except (TypeError, binascii.Error):
+            raise InvalidToken
+
+        if not data or data[0] != 0x80:
+            raise InvalidToken
+
+        if len(data) < 9:
+            raise InvalidToken
+
+        timestamp = int.from_bytes(data[1:9], byteorder="big")
+        return timestamp, data
+
+    def _verify_signature(self, data: bytes) -> None:
+        h = HMAC(self._signing_key, hashes.SHA256())
+        h.update(data[:-32])
+        try:
+            h.verify(data[-32:])
+        except InvalidSignature:
+            raise InvalidToken
+
+    def _decrypt_data(
+        self,
+        data: bytes,
+        timestamp: int,
+        time_info: tuple[int, int] | None,
+    ) -> bytes:
+        if time_info is not None:
+            ttl, current_time = time_info
+            if timestamp + ttl < current_time:
+                raise InvalidToken
+
+            if current_time + _MAX_CLOCK_SKEW < timestamp:
+                raise InvalidToken
+
+        self._verify_signature(data)
+
+        iv = data[9:25]
+        ciphertext = data[25:-32]
+        decryptor = Cipher(
+            algorithms.AES(self._encryption_key), modes.CBC(iv)
+        ).decryptor()
+        plaintext_padded = decryptor.update(ciphertext)
+        try:
+            plaintext_padded += decryptor.finalize()
+        except ValueError:
+            raise InvalidToken
+        unpadder = padding.PKCS7(algorithms.AES.block_size).unpadder()
+
+        unpadded = unpadder.update(plaintext_padded)
+        try:
+            unpadded += unpadder.finalize()
+        except ValueError:
+            raise InvalidToken
+        return unpadded
+
+
+class MultiFernet:
+    def __init__(self, fernets: typing.Iterable[Fernet]):
+        fernets = list(fernets)
+        if not fernets:
+            raise ValueError(
+                "MultiFernet requires at least one Fernet instance"
+            )
+        self._fernets = fernets
+
+    def encrypt(self, msg: bytes) -> bytes:
+        return self.encrypt_at_time(msg, int(time.time()))
+
+    def encrypt_at_time(self, msg: bytes, current_time: int) -> bytes:
+        return self._fernets[0].encrypt_at_time(msg, current_time)
+
+    def rotate(self, msg: bytes | str) -> bytes:
+        timestamp, data = Fernet._get_unverified_token_data(msg)
+        for f in self._fernets:
+            try:
+                p = f._decrypt_data(data, timestamp, None)
+                break
+            except InvalidToken:
+                pass
+        else:
+            raise InvalidToken
+
+        iv = os.urandom(16)
+        return self._fernets[0]._encrypt_from_parts(p, timestamp, iv)
+
+    def decrypt(self, msg: bytes | str, ttl: int | None = None) -> bytes:
+        for f in self._fernets:
+            try:
+                return f.decrypt(msg, ttl)
+            except InvalidToken:
+                pass
+        raise InvalidToken
+
+    def decrypt_at_time(
+        self, msg: bytes | str, ttl: int, current_time: int
+    ) -> bytes:
+        for f in self._fernets:
+            try:
+                return f.decrypt_at_time(msg, ttl, current_time)
+            except InvalidToken:
+                pass
+        raise InvalidToken

gcloud/virtenv/lib/python3.12/site-packages/cryptography/hazmat/__init__.py

@@ -0,0 +1,13 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+
+from __future__ import annotations
+
+"""
+Hazardous Materials
+
+This is a "Hazardous Materials" module. You should ONLY use it if you're
+100% absolutely sure that you know what you're doing because this module
+is full of land mines, dragons, and dinosaurs with laser guns.
+"""

gcloud/virtenv/lib/python3.12/site-packages/cryptography/hazmat/_oid.py

@@ -0,0 +1,296 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+
+from __future__ import annotations
+
+from cryptography.hazmat.bindings._rust import (
+    ObjectIdentifier as ObjectIdentifier,
+)
+from cryptography.hazmat.primitives import hashes
+
+
+class ExtensionOID:
+    SUBJECT_DIRECTORY_ATTRIBUTES = ObjectIdentifier("2.5.29.9")
+    SUBJECT_KEY_IDENTIFIER = ObjectIdentifier("2.5.29.14")
+    KEY_USAGE = ObjectIdentifier("2.5.29.15")
+    SUBJECT_ALTERNATIVE_NAME = ObjectIdentifier("2.5.29.17")
+    ISSUER_ALTERNATIVE_NAME = ObjectIdentifier("2.5.29.18")
+    BASIC_CONSTRAINTS = ObjectIdentifier("2.5.29.19")
+    NAME_CONSTRAINTS = ObjectIdentifier("2.5.29.30")
+    CRL_DISTRIBUTION_POINTS = ObjectIdentifier("2.5.29.31")
+    CERTIFICATE_POLICIES = ObjectIdentifier("2.5.29.32")
+    POLICY_MAPPINGS = ObjectIdentifier("2.5.29.33")
+    AUTHORITY_KEY_IDENTIFIER = ObjectIdentifier("2.5.29.35")
+    POLICY_CONSTRAINTS = ObjectIdentifier("2.5.29.36")
+    EXTENDED_KEY_USAGE = ObjectIdentifier("2.5.29.37")
+    FRESHEST_CRL = ObjectIdentifier("2.5.29.46")
+    INHIBIT_ANY_POLICY = ObjectIdentifier("2.5.29.54")
+    ISSUING_DISTRIBUTION_POINT = ObjectIdentifier("2.5.29.28")
+    AUTHORITY_INFORMATION_ACCESS = ObjectIdentifier("1.3.6.1.5.5.7.1.1")
+    SUBJECT_INFORMATION_ACCESS = ObjectIdentifier("1.3.6.1.5.5.7.1.11")
+    OCSP_NO_CHECK = ObjectIdentifier("1.3.6.1.5.5.7.48.1.5")
+    TLS_FEATURE = ObjectIdentifier("1.3.6.1.5.5.7.1.24")
+    CRL_NUMBER = ObjectIdentifier("2.5.29.20")
+    DELTA_CRL_INDICATOR = ObjectIdentifier("2.5.29.27")
+    PRECERT_SIGNED_CERTIFICATE_TIMESTAMPS = ObjectIdentifier(
+        "1.3.6.1.4.1.11129.2.4.2"
+    )
+    PRECERT_POISON = ObjectIdentifier("1.3.6.1.4.1.11129.2.4.3")
+    SIGNED_CERTIFICATE_TIMESTAMPS = ObjectIdentifier("1.3.6.1.4.1.11129.2.4.5")
+    MS_CERTIFICATE_TEMPLATE = ObjectIdentifier("1.3.6.1.4.1.311.21.7")
+
+
+class OCSPExtensionOID:
+    NONCE = ObjectIdentifier("1.3.6.1.5.5.7.48.1.2")
+    ACCEPTABLE_RESPONSES = ObjectIdentifier("1.3.6.1.5.5.7.48.1.4")
+
+
+class CRLEntryExtensionOID:
+    CERTIFICATE_ISSUER = ObjectIdentifier("2.5.29.29")
+    CRL_REASON = ObjectIdentifier("2.5.29.21")
+    INVALIDITY_DATE = ObjectIdentifier("2.5.29.24")
+
+
+class NameOID:
+    COMMON_NAME = ObjectIdentifier("2.5.4.3")
+    COUNTRY_NAME = ObjectIdentifier("2.5.4.6")
+    LOCALITY_NAME = ObjectIdentifier("2.5.4.7")
+    STATE_OR_PROVINCE_NAME = ObjectIdentifier("2.5.4.8")
+    STREET_ADDRESS = ObjectIdentifier("2.5.4.9")
+    ORGANIZATION_IDENTIFIER = ObjectIdentifier("2.5.4.97")
+    ORGANIZATION_NAME = ObjectIdentifier("2.5.4.10")
+    ORGANIZATIONAL_UNIT_NAME = ObjectIdentifier("2.5.4.11")
+    SERIAL_NUMBER = ObjectIdentifier("2.5.4.5")
+    SURNAME = ObjectIdentifier("2.5.4.4")
+    GIVEN_NAME = ObjectIdentifier("2.5.4.42")
+    TITLE = ObjectIdentifier("2.5.4.12")
+    INITIALS = ObjectIdentifier("2.5.4.43")
+    GENERATION_QUALIFIER = ObjectIdentifier("2.5.4.44")
+    X500_UNIQUE_IDENTIFIER = ObjectIdentifier("2.5.4.45")
+    DN_QUALIFIER = ObjectIdentifier("2.5.4.46")
+    PSEUDONYM = ObjectIdentifier("2.5.4.65")
+    USER_ID = ObjectIdentifier("0.9.2342.19200300.100.1.1")
+    DOMAIN_COMPONENT = ObjectIdentifier("0.9.2342.19200300.100.1.25")
+    EMAIL_ADDRESS = ObjectIdentifier("1.2.840.113549.1.9.1")
+    JURISDICTION_COUNTRY_NAME = ObjectIdentifier("1.3.6.1.4.1.311.60.2.1.3")
+    JURISDICTION_LOCALITY_NAME = ObjectIdentifier("1.3.6.1.4.1.311.60.2.1.1")
+    JURISDICTION_STATE_OR_PROVINCE_NAME = ObjectIdentifier(
+        "1.3.6.1.4.1.311.60.2.1.2"
+    )
+    BUSINESS_CATEGORY = ObjectIdentifier("2.5.4.15")
+    POSTAL_ADDRESS = ObjectIdentifier("2.5.4.16")
+    POSTAL_CODE = ObjectIdentifier("2.5.4.17")
+    INN = ObjectIdentifier("1.2.643.3.131.1.1")
+    OGRN = ObjectIdentifier("1.2.643.100.1")
+    SNILS = ObjectIdentifier("1.2.643.100.3")
+    UNSTRUCTURED_NAME = ObjectIdentifier("1.2.840.113549.1.9.2")
+
+
+class SignatureAlgorithmOID:
+    RSA_WITH_MD5 = ObjectIdentifier("1.2.840.113549.1.1.4")
+    RSA_WITH_SHA1 = ObjectIdentifier("1.2.840.113549.1.1.5")
+    # This is an alternate OID for RSA with SHA1 that is occasionally seen
+    _RSA_WITH_SHA1 = ObjectIdentifier("1.3.14.3.2.29")
+    RSA_WITH_SHA224 = ObjectIdentifier("1.2.840.113549.1.1.14")
+    RSA_WITH_SHA256 = ObjectIdentifier("1.2.840.113549.1.1.11")
+    RSA_WITH_SHA384 = ObjectIdentifier("1.2.840.113549.1.1.12")
+    RSA_WITH_SHA512 = ObjectIdentifier("1.2.840.113549.1.1.13")
+    RSA_WITH_SHA3_224 = ObjectIdentifier("2.16.840.1.101.3.4.3.13")
+    RSA_WITH_SHA3_256 = ObjectIdentifier("2.16.840.1.101.3.4.3.14")
+    RSA_WITH_SHA3_384 = ObjectIdentifier("2.16.840.1.101.3.4.3.15")
+    RSA_WITH_SHA3_512 = ObjectIdentifier("2.16.840.1.101.3.4.3.16")
+    RSASSA_PSS = ObjectIdentifier("1.2.840.113549.1.1.10")
+    ECDSA_WITH_SHA1 = ObjectIdentifier("1.2.840.10045.4.1")
+    ECDSA_WITH_SHA224 = ObjectIdentifier("1.2.840.10045.4.3.1")
+    ECDSA_WITH_SHA256 = ObjectIdentifier("1.2.840.10045.4.3.2")
+    ECDSA_WITH_SHA384 = ObjectIdentifier("1.2.840.10045.4.3.3")
+    ECDSA_WITH_SHA512 = ObjectIdentifier("1.2.840.10045.4.3.4")
+    ECDSA_WITH_SHA3_224 = ObjectIdentifier("2.16.840.1.101.3.4.3.9")
+    ECDSA_WITH_SHA3_256 = ObjectIdentifier("2.16.840.1.101.3.4.3.10")
+    ECDSA_WITH_SHA3_384 = ObjectIdentifier("2.16.840.1.101.3.4.3.11")
+    ECDSA_WITH_SHA3_512 = ObjectIdentifier("2.16.840.1.101.3.4.3.12")
+    DSA_WITH_SHA1 = ObjectIdentifier("1.2.840.10040.4.3")
+    DSA_WITH_SHA224 = ObjectIdentifier("2.16.840.1.101.3.4.3.1")
+    DSA_WITH_SHA256 = ObjectIdentifier("2.16.840.1.101.3.4.3.2")
+    DSA_WITH_SHA384 = ObjectIdentifier("2.16.840.1.101.3.4.3.3")
+    DSA_WITH_SHA512 = ObjectIdentifier("2.16.840.1.101.3.4.3.4")
+    ED25519 = ObjectIdentifier("1.3.101.112")
+    ED448 = ObjectIdentifier("1.3.101.113")
+    GOSTR3411_94_WITH_3410_2001 = ObjectIdentifier("1.2.643.2.2.3")
+    GOSTR3410_2012_WITH_3411_2012_256 = ObjectIdentifier("1.2.643.7.1.1.3.2")
+    GOSTR3410_2012_WITH_3411_2012_512 = ObjectIdentifier("1.2.643.7.1.1.3.3")
+
+
+_SIG_OIDS_TO_HASH: dict[ObjectIdentifier, hashes.HashAlgorithm | None] = {
+    SignatureAlgorithmOID.RSA_WITH_MD5: hashes.MD5(),
+    SignatureAlgorithmOID.RSA_WITH_SHA1: hashes.SHA1(),
+    SignatureAlgorithmOID._RSA_WITH_SHA1: hashes.SHA1(),
+    SignatureAlgorithmOID.RSA_WITH_SHA224: hashes.SHA224(),
+    SignatureAlgorithmOID.RSA_WITH_SHA256: hashes.SHA256(),
+    SignatureAlgorithmOID.RSA_WITH_SHA384: hashes.SHA384(),
+    SignatureAlgorithmOID.RSA_WITH_SHA512: hashes.SHA512(),
+    SignatureAlgorithmOID.RSA_WITH_SHA3_224: hashes.SHA3_224(),
+    SignatureAlgorithmOID.RSA_WITH_SHA3_256: hashes.SHA3_256(),
+    SignatureAlgorithmOID.RSA_WITH_SHA3_384: hashes.SHA3_384(),
+    SignatureAlgorithmOID.RSA_WITH_SHA3_512: hashes.SHA3_512(),
+    SignatureAlgorithmOID.ECDSA_WITH_SHA1: hashes.SHA1(),
+    SignatureAlgorithmOID.ECDSA_WITH_SHA224: hashes.SHA224(),
+    SignatureAlgorithmOID.ECDSA_WITH_SHA256: hashes.SHA256(),
+    SignatureAlgorithmOID.ECDSA_WITH_SHA384: hashes.SHA384(),
+    SignatureAlgorithmOID.ECDSA_WITH_SHA512: hashes.SHA512(),
+    SignatureAlgorithmOID.ECDSA_WITH_SHA3_224: hashes.SHA3_224(),
+    SignatureAlgorithmOID.ECDSA_WITH_SHA3_256: hashes.SHA3_256(),
+    SignatureAlgorithmOID.ECDSA_WITH_SHA3_384: hashes.SHA3_384(),
+    SignatureAlgorithmOID.ECDSA_WITH_SHA3_512: hashes.SHA3_512(),
+    SignatureAlgorithmOID.DSA_WITH_SHA1: hashes.SHA1(),
+    SignatureAlgorithmOID.DSA_WITH_SHA224: hashes.SHA224(),
+    SignatureAlgorithmOID.DSA_WITH_SHA256: hashes.SHA256(),
+    SignatureAlgorithmOID.ED25519: None,
+    SignatureAlgorithmOID.ED448: None,
+    SignatureAlgorithmOID.GOSTR3411_94_WITH_3410_2001: None,
+    SignatureAlgorithmOID.GOSTR3410_2012_WITH_3411_2012_256: None,
+    SignatureAlgorithmOID.GOSTR3410_2012_WITH_3411_2012_512: None,
+}
+
+
+class ExtendedKeyUsageOID:
+    SERVER_AUTH = ObjectIdentifier("1.3.6.1.5.5.7.3.1")
+    CLIENT_AUTH = ObjectIdentifier("1.3.6.1.5.5.7.3.2")
+    CODE_SIGNING = ObjectIdentifier("1.3.6.1.5.5.7.3.3")
+    EMAIL_PROTECTION = ObjectIdentifier("1.3.6.1.5.5.7.3.4")
+    TIME_STAMPING = ObjectIdentifier("1.3.6.1.5.5.7.3.8")
+    OCSP_SIGNING = ObjectIdentifier("1.3.6.1.5.5.7.3.9")
+    ANY_EXTENDED_KEY_USAGE = ObjectIdentifier("2.5.29.37.0")
+    SMARTCARD_LOGON = ObjectIdentifier("1.3.6.1.4.1.311.20.2.2")
+    KERBEROS_PKINIT_KDC = ObjectIdentifier("1.3.6.1.5.2.3.5")
+    IPSEC_IKE = ObjectIdentifier("1.3.6.1.5.5.7.3.17")
+    CERTIFICATE_TRANSPARENCY = ObjectIdentifier("1.3.6.1.4.1.11129.2.4.4")
+
+
+class AuthorityInformationAccessOID:
+    CA_ISSUERS = ObjectIdentifier("1.3.6.1.5.5.7.48.2")
+    OCSP = ObjectIdentifier("1.3.6.1.5.5.7.48.1")
+
+
+class SubjectInformationAccessOID:
+    CA_REPOSITORY = ObjectIdentifier("1.3.6.1.5.5.7.48.5")
+
+
+class CertificatePoliciesOID:
+    CPS_QUALIFIER = ObjectIdentifier("1.3.6.1.5.5.7.2.1")
+    CPS_USER_NOTICE = ObjectIdentifier("1.3.6.1.5.5.7.2.2")
+    ANY_POLICY = ObjectIdentifier("2.5.29.32.0")
+
+
+class AttributeOID:
+    CHALLENGE_PASSWORD = ObjectIdentifier("1.2.840.113549.1.9.7")
+    UNSTRUCTURED_NAME = ObjectIdentifier("1.2.840.113549.1.9.2")
+
+
+_OID_NAMES = {
+    NameOID.COMMON_NAME: "commonName",
+    NameOID.COUNTRY_NAME: "countryName",
+    NameOID.LOCALITY_NAME: "localityName",
+    NameOID.STATE_OR_PROVINCE_NAME: "stateOrProvinceName",
+    NameOID.STREET_ADDRESS: "streetAddress",
+    NameOID.ORGANIZATION_NAME: "organizationName",
+    NameOID.ORGANIZATIONAL_UNIT_NAME: "organizationalUnitName",
+    NameOID.SERIAL_NUMBER: "serialNumber",
+    NameOID.SURNAME: "surname",
+    NameOID.GIVEN_NAME: "givenName",
+    NameOID.TITLE: "title",
+    NameOID.GENERATION_QUALIFIER: "generationQualifier",
+    NameOID.X500_UNIQUE_IDENTIFIER: "x500UniqueIdentifier",
+    NameOID.DN_QUALIFIER: "dnQualifier",
+    NameOID.PSEUDONYM: "pseudonym",
+    NameOID.USER_ID: "userID",
+    NameOID.DOMAIN_COMPONENT: "domainComponent",
+    NameOID.EMAIL_ADDRESS: "emailAddress",
+    NameOID.JURISDICTION_COUNTRY_NAME: "jurisdictionCountryName",
+    NameOID.JURISDICTION_LOCALITY_NAME: "jurisdictionLocalityName",
+    NameOID.JURISDICTION_STATE_OR_PROVINCE_NAME: (
+        "jurisdictionStateOrProvinceName"
+    ),
+    NameOID.BUSINESS_CATEGORY: "businessCategory",
+    NameOID.POSTAL_ADDRESS: "postalAddress",
+    NameOID.POSTAL_CODE: "postalCode",
+    NameOID.INN: "INN",
+    NameOID.OGRN: "OGRN",
+    NameOID.SNILS: "SNILS",
+    NameOID.UNSTRUCTURED_NAME: "unstructuredName",
+    SignatureAlgorithmOID.RSA_WITH_MD5: "md5WithRSAEncryption",
+    SignatureAlgorithmOID.RSA_WITH_SHA1: "sha1WithRSAEncryption",
+    SignatureAlgorithmOID.RSA_WITH_SHA224: "sha224WithRSAEncryption",
+    SignatureAlgorithmOID.RSA_WITH_SHA256: "sha256WithRSAEncryption",
+    SignatureAlgorithmOID.RSA_WITH_SHA384: "sha384WithRSAEncryption",
+    SignatureAlgorithmOID.RSA_WITH_SHA512: "sha512WithRSAEncryption",
+    SignatureAlgorithmOID.RSASSA_PSS: "RSASSA-PSS",
+    SignatureAlgorithmOID.ECDSA_WITH_SHA1: "ecdsa-with-SHA1",
+    SignatureAlgorithmOID.ECDSA_WITH_SHA224: "ecdsa-with-SHA224",
+    SignatureAlgorithmOID.ECDSA_WITH_SHA256: "ecdsa-with-SHA256",
+    SignatureAlgorithmOID.ECDSA_WITH_SHA384: "ecdsa-with-SHA384",
+    SignatureAlgorithmOID.ECDSA_WITH_SHA512: "ecdsa-with-SHA512",
+    SignatureAlgorithmOID.DSA_WITH_SHA1: "dsa-with-sha1",
+    SignatureAlgorithmOID.DSA_WITH_SHA224: "dsa-with-sha224",
+    SignatureAlgorithmOID.DSA_WITH_SHA256: "dsa-with-sha256",
+    SignatureAlgorithmOID.ED25519: "ed25519",
+    SignatureAlgorithmOID.ED448: "ed448",
+    SignatureAlgorithmOID.GOSTR3411_94_WITH_3410_2001: (
+        "GOST R 34.11-94 with GOST R 34.10-2001"
+    ),
+    SignatureAlgorithmOID.GOSTR3410_2012_WITH_3411_2012_256: (
+        "GOST R 34.10-2012 with GOST R 34.11-2012 (256 bit)"
+    ),
+    SignatureAlgorithmOID.GOSTR3410_2012_WITH_3411_2012_512: (
+        "GOST R 34.10-2012 with GOST R 34.11-2012 (512 bit)"
+    ),
+    ExtendedKeyUsageOID.SERVER_AUTH: "serverAuth",
+    ExtendedKeyUsageOID.CLIENT_AUTH: "clientAuth",
+    ExtendedKeyUsageOID.CODE_SIGNING: "codeSigning",
+    ExtendedKeyUsageOID.EMAIL_PROTECTION: "emailProtection",
+    ExtendedKeyUsageOID.TIME_STAMPING: "timeStamping",
+    ExtendedKeyUsageOID.OCSP_SIGNING: "OCSPSigning",
+    ExtendedKeyUsageOID.SMARTCARD_LOGON: "msSmartcardLogin",
+    ExtendedKeyUsageOID.KERBEROS_PKINIT_KDC: "pkInitKDC",
+    ExtensionOID.SUBJECT_DIRECTORY_ATTRIBUTES: "subjectDirectoryAttributes",
+    ExtensionOID.SUBJECT_KEY_IDENTIFIER: "subjectKeyIdentifier",
+    ExtensionOID.KEY_USAGE: "keyUsage",
+    ExtensionOID.SUBJECT_ALTERNATIVE_NAME: "subjectAltName",
+    ExtensionOID.ISSUER_ALTERNATIVE_NAME: "issuerAltName",
+    ExtensionOID.BASIC_CONSTRAINTS: "basicConstraints",
+    ExtensionOID.PRECERT_SIGNED_CERTIFICATE_TIMESTAMPS: (
+        "signedCertificateTimestampList"
+    ),
+    ExtensionOID.SIGNED_CERTIFICATE_TIMESTAMPS: (
+        "signedCertificateTimestampList"
+    ),
+    ExtensionOID.PRECERT_POISON: "ctPoison",
+    ExtensionOID.MS_CERTIFICATE_TEMPLATE: "msCertificateTemplate",
+    CRLEntryExtensionOID.CRL_REASON: "cRLReason",
+    CRLEntryExtensionOID.INVALIDITY_DATE: "invalidityDate",
+    CRLEntryExtensionOID.CERTIFICATE_ISSUER: "certificateIssuer",
+    ExtensionOID.NAME_CONSTRAINTS: "nameConstraints",
+    ExtensionOID.CRL_DISTRIBUTION_POINTS: "cRLDistributionPoints",
+    ExtensionOID.CERTIFICATE_POLICIES: "certificatePolicies",
+    ExtensionOID.POLICY_MAPPINGS: "policyMappings",
+    ExtensionOID.AUTHORITY_KEY_IDENTIFIER: "authorityKeyIdentifier",
+    ExtensionOID.POLICY_CONSTRAINTS: "policyConstraints",
+    ExtensionOID.EXTENDED_KEY_USAGE: "extendedKeyUsage",
+    ExtensionOID.FRESHEST_CRL: "freshestCRL",
+    ExtensionOID.INHIBIT_ANY_POLICY: "inhibitAnyPolicy",
+    ExtensionOID.ISSUING_DISTRIBUTION_POINT: "issuingDistributionPoint",
+    ExtensionOID.AUTHORITY_INFORMATION_ACCESS: "authorityInfoAccess",
+    ExtensionOID.SUBJECT_INFORMATION_ACCESS: "subjectInfoAccess",
+    ExtensionOID.OCSP_NO_CHECK: "OCSPNoCheck",
+    ExtensionOID.CRL_NUMBER: "cRLNumber",
+    ExtensionOID.DELTA_CRL_INDICATOR: "deltaCRLIndicator",
+    ExtensionOID.TLS_FEATURE: "TLSFeature",
+    AuthorityInformationAccessOID.OCSP: "OCSP",
+    AuthorityInformationAccessOID.CA_ISSUERS: "caIssuers",
+    SubjectInformationAccessOID.CA_REPOSITORY: "caRepository",
+    CertificatePoliciesOID.CPS_QUALIFIER: "id-qt-cps",
+    CertificatePoliciesOID.CPS_USER_NOTICE: "id-qt-unotice",
+    OCSPExtensionOID.NONCE: "OCSPNonce",
+    AttributeOID.CHALLENGE_PASSWORD: "challengePassword",
+}

gcloud/virtenv/lib/python3.12/site-packages/cryptography/hazmat/backends/__init__.py

@@ -0,0 +1,13 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+
+from __future__ import annotations
+
+from typing import Any
+
+
+def default_backend() -> Any:
+    from cryptography.hazmat.backends.openssl.backend import backend
+
+    return backend

gcloud/virtenv/lib/python3.12/site-packages/cryptography/hazmat/backends/openssl/__init__.py

@@ -0,0 +1,9 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+
+from __future__ import annotations
+
+from cryptography.hazmat.backends.openssl.backend import backend
+
+__all__ = ["backend"]

gcloud/virtenv/lib/python3.12/site-packages/cryptography/hazmat/backends/openssl/aead.py

@@ -0,0 +1,272 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+
+from __future__ import annotations
+
+import typing
+
+from cryptography.exceptions import InvalidTag
+
+if typing.TYPE_CHECKING:
+    from cryptography.hazmat.backends.openssl.backend import Backend
+    from cryptography.hazmat.primitives.ciphers.aead import (
+        AESCCM,
+        AESGCM,
+    )
+
+    _AEADTypes = typing.Union[AESCCM, AESGCM]
+
+
+def _aead_cipher_supported(backend: Backend, cipher: _AEADTypes) -> bool:
+    cipher_name = _evp_cipher_cipher_name(cipher)
+
+    return backend._lib.EVP_get_cipherbyname(cipher_name) != backend._ffi.NULL
+
+
+def _encrypt(
+    backend: Backend,
+    cipher: _AEADTypes,
+    nonce: bytes,
+    data: bytes,
+    associated_data: list[bytes],
+    tag_length: int,
+) -> bytes:
+    return _evp_cipher_encrypt(
+        backend, cipher, nonce, data, associated_data, tag_length
+    )
+
+
+def _decrypt(
+    backend: Backend,
+    cipher: _AEADTypes,
+    nonce: bytes,
+    data: bytes,
+    associated_data: list[bytes],
+    tag_length: int,
+) -> bytes:
+    return _evp_cipher_decrypt(
+        backend, cipher, nonce, data, associated_data, tag_length
+    )
+
+
+_ENCRYPT = 1
+_DECRYPT = 0
+
+
+def _evp_cipher_cipher_name(cipher: _AEADTypes) -> bytes:
+    from cryptography.hazmat.primitives.ciphers.aead import (
+        AESCCM,
+        AESGCM,
+    )
+
+    if isinstance(cipher, AESCCM):
+        return f"aes-{len(cipher._key) * 8}-ccm".encode("ascii")
+    else:
+        assert isinstance(cipher, AESGCM)
+        return f"aes-{len(cipher._key) * 8}-gcm".encode("ascii")
+
+
+def _evp_cipher(cipher_name: bytes, backend: Backend):
+    evp_cipher = backend._lib.EVP_get_cipherbyname(cipher_name)
+    backend.openssl_assert(evp_cipher != backend._ffi.NULL)
+    return evp_cipher
+
+
+def _evp_cipher_aead_setup(
+    backend: Backend,
+    cipher_name: bytes,
+    key: bytes,
+    nonce: bytes,
+    tag: bytes | None,
+    tag_len: int,
+    operation: int,
+):
+    evp_cipher = _evp_cipher(cipher_name, backend)
+    ctx = backend._lib.EVP_CIPHER_CTX_new()
+    ctx = backend._ffi.gc(ctx, backend._lib.EVP_CIPHER_CTX_free)
+    res = backend._lib.EVP_CipherInit_ex(
+        ctx,
+        evp_cipher,
+        backend._ffi.NULL,
+        backend._ffi.NULL,
+        backend._ffi.NULL,
+        int(operation == _ENCRYPT),
+    )
+    backend.openssl_assert(res != 0)
+    # CCM requires the IVLEN to be set before calling SET_TAG on decrypt
+    res = backend._lib.EVP_CIPHER_CTX_ctrl(
+        ctx,
+        backend._lib.EVP_CTRL_AEAD_SET_IVLEN,
+        len(nonce),
+        backend._ffi.NULL,
+    )
+    backend.openssl_assert(res != 0)
+    if operation == _DECRYPT:
+        assert tag is not None
+        _evp_cipher_set_tag(backend, ctx, tag)
+    elif cipher_name.endswith(b"-ccm"):
+        res = backend._lib.EVP_CIPHER_CTX_ctrl(
+            ctx,
+            backend._lib.EVP_CTRL_AEAD_SET_TAG,
+            tag_len,
+            backend._ffi.NULL,
+        )
+        backend.openssl_assert(res != 0)
+
+    nonce_ptr = backend._ffi.from_buffer(nonce)
+    key_ptr = backend._ffi.from_buffer(key)
+    res = backend._lib.EVP_CipherInit_ex(
+        ctx,
+        backend._ffi.NULL,
+        backend._ffi.NULL,
+        key_ptr,
+        nonce_ptr,
+        int(operation == _ENCRYPT),
+    )
+    backend.openssl_assert(res != 0)
+    return ctx
+
+
+def _evp_cipher_set_tag(backend, ctx, tag: bytes) -> None:
+    tag_ptr = backend._ffi.from_buffer(tag)
+    res = backend._lib.EVP_CIPHER_CTX_ctrl(
+        ctx, backend._lib.EVP_CTRL_AEAD_SET_TAG, len(tag), tag_ptr
+    )
+    backend.openssl_assert(res != 0)
+
+
+def _evp_cipher_set_length(backend: Backend, ctx, data_len: int) -> None:
+    intptr = backend._ffi.new("int *")
+    res = backend._lib.EVP_CipherUpdate(
+        ctx, backend._ffi.NULL, intptr, backend._ffi.NULL, data_len
+    )
+    backend.openssl_assert(res != 0)
+
+
+def _evp_cipher_process_aad(
+    backend: Backend, ctx, associated_data: bytes
+) -> None:
+    outlen = backend._ffi.new("int *")
+    a_data_ptr = backend._ffi.from_buffer(associated_data)
+    res = backend._lib.EVP_CipherUpdate(
+        ctx, backend._ffi.NULL, outlen, a_data_ptr, len(associated_data)
+    )
+    backend.openssl_assert(res != 0)
+
+
+def _evp_cipher_process_data(backend: Backend, ctx, data: bytes) -> bytes:
+    outlen = backend._ffi.new("int *")
+    buf = backend._ffi.new("unsigned char[]", len(data))
+    data_ptr = backend._ffi.from_buffer(data)
+    res = backend._lib.EVP_CipherUpdate(ctx, buf, outlen, data_ptr, len(data))
+    backend.openssl_assert(res != 0)
+    return backend._ffi.buffer(buf, outlen[0])[:]
+
+
+def _evp_cipher_encrypt(
+    backend: Backend,
+    cipher: _AEADTypes,
+    nonce: bytes,
+    data: bytes,
+    associated_data: list[bytes],
+    tag_length: int,
+) -> bytes:
+    from cryptography.hazmat.primitives.ciphers.aead import AESCCM
+
+    cipher_name = _evp_cipher_cipher_name(cipher)
+    ctx = _evp_cipher_aead_setup(
+        backend,
+        cipher_name,
+        cipher._key,
+        nonce,
+        None,
+        tag_length,
+        _ENCRYPT,
+    )
+
+    # CCM requires us to pass the length of the data before processing
+    # anything.
+    # However calling this with any other AEAD results in an error
+    if isinstance(cipher, AESCCM):
+        _evp_cipher_set_length(backend, ctx, len(data))
+
+    for ad in associated_data:
+        _evp_cipher_process_aad(backend, ctx, ad)
+    processed_data = _evp_cipher_process_data(backend, ctx, data)
+    outlen = backend._ffi.new("int *")
+    # All AEADs we support besides OCB are streaming so they return nothing
+    # in finalization. OCB can return up to (16 byte block - 1) bytes so
+    # we need a buffer here too.
+    buf = backend._ffi.new("unsigned char[]", 16)
+    res = backend._lib.EVP_CipherFinal_ex(ctx, buf, outlen)
+    backend.openssl_assert(res != 0)
+    processed_data += backend._ffi.buffer(buf, outlen[0])[:]
+    tag_buf = backend._ffi.new("unsigned char[]", tag_length)
+    res = backend._lib.EVP_CIPHER_CTX_ctrl(
+        ctx, backend._lib.EVP_CTRL_AEAD_GET_TAG, tag_length, tag_buf
+    )
+    backend.openssl_assert(res != 0)
+    tag = backend._ffi.buffer(tag_buf)[:]
+
+    return processed_data + tag
+
+
+def _evp_cipher_decrypt(
+    backend: Backend,
+    cipher: _AEADTypes,
+    nonce: bytes,
+    data: bytes,
+    associated_data: list[bytes],
+    tag_length: int,
+) -> bytes:
+    from cryptography.hazmat.primitives.ciphers.aead import AESCCM
+
+    if len(data) < tag_length:
+        raise InvalidTag
+
+    tag = data[-tag_length:]
+    data = data[:-tag_length]
+    cipher_name = _evp_cipher_cipher_name(cipher)
+    ctx = _evp_cipher_aead_setup(
+        backend,
+        cipher_name,
+        cipher._key,
+        nonce,
+        tag,
+        tag_length,
+        _DECRYPT,
+    )
+
+    # CCM requires us to pass the length of the data before processing
+    # anything.
+    # However calling this with any other AEAD results in an error
+    if isinstance(cipher, AESCCM):
+        _evp_cipher_set_length(backend, ctx, len(data))
+
+    for ad in associated_data:
+        _evp_cipher_process_aad(backend, ctx, ad)
+    # CCM has a different error path if the tag doesn't match. Errors are
+    # raised in Update and Final is irrelevant.
+    if isinstance(cipher, AESCCM):
+        outlen = backend._ffi.new("int *")
+        buf = backend._ffi.new("unsigned char[]", len(data))
+        d_ptr = backend._ffi.from_buffer(data)
+        res = backend._lib.EVP_CipherUpdate(ctx, buf, outlen, d_ptr, len(data))
+        if res != 1:
+            backend._consume_errors()
+            raise InvalidTag
+
+        processed_data = backend._ffi.buffer(buf, outlen[0])[:]
+    else:
+        processed_data = _evp_cipher_process_data(backend, ctx, data)
+        outlen = backend._ffi.new("int *")
+        # OCB can return up to 15 bytes (16 byte block - 1) in finalization
+        buf = backend._ffi.new("unsigned char[]", 16)
+        res = backend._lib.EVP_CipherFinal_ex(ctx, buf, outlen)
+        processed_data += backend._ffi.buffer(buf, outlen[0])[:]
+        if res == 0:
+            backend._consume_errors()
+            raise InvalidTag
+
+    return processed_data

gcloud/virtenv/lib/python3.12/site-packages/cryptography/hazmat/backends/openssl/backend.py

@@ -0,0 +1,898 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+
+from __future__ import annotations
+
+import collections
+import contextlib
+import itertools
+import typing
+
+from cryptography import utils, x509
+from cryptography.exceptions import UnsupportedAlgorithm
+from cryptography.hazmat.backends.openssl import aead
+from cryptography.hazmat.backends.openssl.ciphers import _CipherContext
+from cryptography.hazmat.bindings._rust import openssl as rust_openssl
+from cryptography.hazmat.bindings.openssl import binding
+from cryptography.hazmat.primitives import hashes, serialization
+from cryptography.hazmat.primitives._asymmetric import AsymmetricPadding
+from cryptography.hazmat.primitives.asymmetric import ec
+from cryptography.hazmat.primitives.asymmetric import utils as asym_utils
+from cryptography.hazmat.primitives.asymmetric.padding import (
+    MGF1,
+    OAEP,
+    PSS,
+    PKCS1v15,
+)
+from cryptography.hazmat.primitives.asymmetric.types import (
+    PrivateKeyTypes,
+)
+from cryptography.hazmat.primitives.ciphers import (
+    CipherAlgorithm,
+)
+from cryptography.hazmat.primitives.ciphers.algorithms import (
+    AES,
+    AES128,
+    AES256,
+    ARC4,
+    SM4,
+    Camellia,
+    ChaCha20,
+    TripleDES,
+    _BlowfishInternal,
+    _CAST5Internal,
+    _IDEAInternal,
+    _SEEDInternal,
+)
+from cryptography.hazmat.primitives.ciphers.modes import (
+    CBC,
+    CFB,
+    CFB8,
+    CTR,
+    ECB,
+    GCM,
+    OFB,
+    XTS,
+    Mode,
+)
+from cryptography.hazmat.primitives.serialization.pkcs12 import (
+    PBES,
+    PKCS12Certificate,
+    PKCS12KeyAndCertificates,
+    PKCS12PrivateKeyTypes,
+    _PKCS12CATypes,
+)
+
+_MemoryBIO = collections.namedtuple("_MemoryBIO", ["bio", "char_ptr"])
+
+
+# Not actually supported, just used as a marker for some serialization tests.
+class _RC2:
+    pass
+
+
+class Backend:
+    """
+    OpenSSL API binding interfaces.
+    """
+
+    name = "openssl"
+
+    # FIPS has opinions about acceptable algorithms and key sizes, but the
+    # disallowed algorithms are still present in OpenSSL. They just error if
+    # you try to use them. To avoid that we allowlist the algorithms in
+    # FIPS 140-3. This isn't ideal, but FIPS 140-3 is trash so here we are.
+    _fips_aead: typing.ClassVar[set[bytes]] = {
+        b"aes-128-ccm",
+        b"aes-192-ccm",
+        b"aes-256-ccm",
+        b"aes-128-gcm",
+        b"aes-192-gcm",
+        b"aes-256-gcm",
+    }
+    # TripleDES encryption is disallowed/deprecated throughout 2023 in
+    # FIPS 140-3. To keep it simple we denylist any use of TripleDES (TDEA).
+    _fips_ciphers = (AES,)
+    # Sometimes SHA1 is still permissible. That logic is contained
+    # within the various *_supported methods.
+    _fips_hashes = (
+        hashes.SHA224,
+        hashes.SHA256,
+        hashes.SHA384,
+        hashes.SHA512,
+        hashes.SHA512_224,
+        hashes.SHA512_256,
+        hashes.SHA3_224,
+        hashes.SHA3_256,
+        hashes.SHA3_384,
+        hashes.SHA3_512,
+        hashes.SHAKE128,
+        hashes.SHAKE256,
+    )
+    _fips_ecdh_curves = (
+        ec.SECP224R1,
+        ec.SECP256R1,
+        ec.SECP384R1,
+        ec.SECP521R1,
+    )
+    _fips_rsa_min_key_size = 2048
+    _fips_rsa_min_public_exponent = 65537
+    _fips_dsa_min_modulus = 1 << 2048
+    _fips_dh_min_key_size = 2048
+    _fips_dh_min_modulus = 1 << _fips_dh_min_key_size
+
+    def __init__(self) -> None:
+        self._binding = binding.Binding()
+        self._ffi = self._binding.ffi
+        self._lib = self._binding.lib
+        self._fips_enabled = rust_openssl.is_fips_enabled()
+
+        self._cipher_registry: dict[
+            tuple[type[CipherAlgorithm], type[Mode]],
+            typing.Callable,
+        ] = {}
+        self._register_default_ciphers()
+
+    def __repr__(self) -> str:
+        return "<OpenSSLBackend(version: {}, FIPS: {}, Legacy: {})>".format(
+            self.openssl_version_text(),
+            self._fips_enabled,
+            rust_openssl._legacy_provider_loaded,
+        )
+
+    def openssl_assert(
+        self,
+        ok: bool,
+        errors: list[rust_openssl.OpenSSLError] | None = None,
+    ) -> None:
+        return binding._openssl_assert(ok, errors=errors)
+
+    def _enable_fips(self) -> None:
+        # This function enables FIPS mode for OpenSSL 3.0.0 on installs that
+        # have the FIPS provider installed properly.
+        self._binding._enable_fips()
+        assert rust_openssl.is_fips_enabled()
+        self._fips_enabled = rust_openssl.is_fips_enabled()
+
+    def openssl_version_text(self) -> str:
+        """
+        Friendly string name of the loaded OpenSSL library. This is not
+        necessarily the same version as it was compiled against.
+
+        Example: OpenSSL 1.1.1d  10 Sep 2019
+        """
+        return self._ffi.string(
+            self._lib.OpenSSL_version(self._lib.OPENSSL_VERSION)
+        ).decode("ascii")
+
+    def openssl_version_number(self) -> int:
+        return self._lib.OpenSSL_version_num()
+
+    def _evp_md_from_algorithm(self, algorithm: hashes.HashAlgorithm):
+        if algorithm.name in ("blake2b", "blake2s"):
+            alg = f"{algorithm.name}{algorithm.digest_size * 8}".encode(
+                "ascii"
+            )
+        else:
+            alg = algorithm.name.encode("ascii")
+
+        evp_md = self._lib.EVP_get_digestbyname(alg)
+        return evp_md
+
+    def _evp_md_non_null_from_algorithm(self, algorithm: hashes.HashAlgorithm):
+        evp_md = self._evp_md_from_algorithm(algorithm)
+        self.openssl_assert(evp_md != self._ffi.NULL)
+        return evp_md
+
+    def hash_supported(self, algorithm: hashes.HashAlgorithm) -> bool:
+        if self._fips_enabled and not isinstance(algorithm, self._fips_hashes):
+            return False
+
+        evp_md = self._evp_md_from_algorithm(algorithm)
+        return evp_md != self._ffi.NULL
+
+    def signature_hash_supported(
+        self, algorithm: hashes.HashAlgorithm
+    ) -> bool:
+        # Dedicated check for hashing algorithm use in message digest for
+        # signatures, e.g. RSA PKCS#1 v1.5 SHA1 (sha1WithRSAEncryption).
+        if self._fips_enabled and isinstance(algorithm, hashes.SHA1):
+            return False
+        return self.hash_supported(algorithm)
+
+    def scrypt_supported(self) -> bool:
+        if self._fips_enabled:
+            return False
+        else:
+            return self._lib.Cryptography_HAS_SCRYPT == 1
+
+    def hmac_supported(self, algorithm: hashes.HashAlgorithm) -> bool:
+        # FIPS mode still allows SHA1 for HMAC
+        if self._fips_enabled and isinstance(algorithm, hashes.SHA1):
+            return True
+
+        return self.hash_supported(algorithm)
+
+    def cipher_supported(self, cipher: CipherAlgorithm, mode: Mode) -> bool:
+        if self._fips_enabled:
+            # FIPS mode requires AES. TripleDES is disallowed/deprecated in
+            # FIPS 140-3.
+            if not isinstance(cipher, self._fips_ciphers):
+                return False
+
+        try:
+            adapter = self._cipher_registry[type(cipher), type(mode)]
+        except KeyError:
+            return False
+        evp_cipher = adapter(self, cipher, mode)
+        return self._ffi.NULL != evp_cipher
+
+    def register_cipher_adapter(self, cipher_cls, mode_cls, adapter) -> None:
+        if (cipher_cls, mode_cls) in self._cipher_registry:
+            raise ValueError(
+                f"Duplicate registration for: {cipher_cls} {mode_cls}."
+            )
+        self._cipher_registry[cipher_cls, mode_cls] = adapter
+
+    def _register_default_ciphers(self) -> None:
+        for cipher_cls in [AES, AES128, AES256]:
+            for mode_cls in [CBC, CTR, ECB, OFB, CFB, CFB8, GCM]:
+                self.register_cipher_adapter(
+                    cipher_cls,
+                    mode_cls,
+                    GetCipherByName(
+                        "{cipher.name}-{cipher.key_size}-{mode.name}"
+                    ),
+                )
+        for mode_cls in [CBC, CTR, ECB, OFB, CFB]:
+            self.register_cipher_adapter(
+                Camellia,
+                mode_cls,
+                GetCipherByName("{cipher.name}-{cipher.key_size}-{mode.name}"),
+            )
+        for mode_cls in [CBC, CFB, CFB8, OFB]:
+            self.register_cipher_adapter(
+                TripleDES, mode_cls, GetCipherByName("des-ede3-{mode.name}")
+            )
+        self.register_cipher_adapter(
+            TripleDES, ECB, GetCipherByName("des-ede3")
+        )
+        # ChaCha20 uses the Long Name "chacha20" in OpenSSL, but in LibreSSL
+        # it uses "chacha"
+        self.register_cipher_adapter(
+            ChaCha20,
+            type(None),
+            GetCipherByName(
+                "chacha" if self._lib.CRYPTOGRAPHY_IS_LIBRESSL else "chacha20"
+            ),
+        )
+        self.register_cipher_adapter(AES, XTS, _get_xts_cipher)
+        for mode_cls in [ECB, CBC, OFB, CFB, CTR, GCM]:
+            self.register_cipher_adapter(
+                SM4, mode_cls, GetCipherByName("sm4-{mode.name}")
+            )
+        # Don't register legacy ciphers if they're unavailable. Hypothetically
+        # this wouldn't be necessary because we test availability by seeing if
+        # we get an EVP_CIPHER * in the _CipherContext __init__, but OpenSSL 3
+        # will return a valid pointer even though the cipher is unavailable.
+        if (
+            rust_openssl._legacy_provider_loaded
+            or not self._lib.CRYPTOGRAPHY_OPENSSL_300_OR_GREATER
+        ):
+            for mode_cls in [CBC, CFB, OFB, ECB]:
+                self.register_cipher_adapter(
+                    _BlowfishInternal,
+                    mode_cls,
+                    GetCipherByName("bf-{mode.name}"),
+                )
+            for mode_cls in [CBC, CFB, OFB, ECB]:
+                self.register_cipher_adapter(
+                    _SEEDInternal,
+                    mode_cls,
+                    GetCipherByName("seed-{mode.name}"),
+                )
+            for cipher_cls, mode_cls in itertools.product(
+                [_CAST5Internal, _IDEAInternal],
+                [CBC, OFB, CFB, ECB],
+            ):
+                self.register_cipher_adapter(
+                    cipher_cls,
+                    mode_cls,
+                    GetCipherByName("{cipher.name}-{mode.name}"),
+                )
+            self.register_cipher_adapter(
+                ARC4, type(None), GetCipherByName("rc4")
+            )
+            # We don't actually support RC2, this is just used by some tests.
+            self.register_cipher_adapter(
+                _RC2, type(None), GetCipherByName("rc2")
+            )
+
+    def create_symmetric_encryption_ctx(
+        self, cipher: CipherAlgorithm, mode: Mode
+    ) -> _CipherContext:
+        return _CipherContext(self, cipher, mode, _CipherContext._ENCRYPT)
+
+    def create_symmetric_decryption_ctx(
+        self, cipher: CipherAlgorithm, mode: Mode
+    ) -> _CipherContext:
+        return _CipherContext(self, cipher, mode, _CipherContext._DECRYPT)
+
+    def pbkdf2_hmac_supported(self, algorithm: hashes.HashAlgorithm) -> bool:
+        return self.hmac_supported(algorithm)
+
+    def _consume_errors(self) -> list[rust_openssl.OpenSSLError]:
+        return rust_openssl.capture_error_stack()
+
+    def generate_rsa_parameters_supported(
+        self, public_exponent: int, key_size: int
+    ) -> bool:
+        return (
+            public_exponent >= 3
+            and public_exponent & 1 != 0
+            and key_size >= 512
+        )
+
+    def _bytes_to_bio(self, data: bytes) -> _MemoryBIO:
+        """
+        Return a _MemoryBIO namedtuple of (BIO, char*).
+
+        The char* is the storage for the BIO and it must stay alive until the
+        BIO is finished with.
+        """
+        data_ptr = self._ffi.from_buffer(data)
+        bio = self._lib.BIO_new_mem_buf(data_ptr, len(data))
+        self.openssl_assert(bio != self._ffi.NULL)
+
+        return _MemoryBIO(self._ffi.gc(bio, self._lib.BIO_free), data_ptr)
+
+    def _create_mem_bio_gc(self):
+        """
+        Creates an empty memory BIO.
+        """
+        bio_method = self._lib.BIO_s_mem()
+        self.openssl_assert(bio_method != self._ffi.NULL)
+        bio = self._lib.BIO_new(bio_method)
+        self.openssl_assert(bio != self._ffi.NULL)
+        bio = self._ffi.gc(bio, self._lib.BIO_free)
+        return bio
+
+    def _read_mem_bio(self, bio) -> bytes:
+        """
+        Reads a memory BIO. This only works on memory BIOs.
+        """
+        buf = self._ffi.new("char **")
+        buf_len = self._lib.BIO_get_mem_data(bio, buf)
+        self.openssl_assert(buf_len > 0)
+        self.openssl_assert(buf[0] != self._ffi.NULL)
+        bio_data = self._ffi.buffer(buf[0], buf_len)[:]
+        return bio_data
+
+    def _oaep_hash_supported(self, algorithm: hashes.HashAlgorithm) -> bool:
+        if self._fips_enabled and isinstance(algorithm, hashes.SHA1):
+            return False
+
+        return isinstance(
+            algorithm,
+            (
+                hashes.SHA1,
+                hashes.SHA224,
+                hashes.SHA256,
+                hashes.SHA384,
+                hashes.SHA512,
+            ),
+        )
+
+    def rsa_padding_supported(self, padding: AsymmetricPadding) -> bool:
+        if isinstance(padding, PKCS1v15):
+            return True
+        elif isinstance(padding, PSS) and isinstance(padding._mgf, MGF1):
+            # SHA1 is permissible in MGF1 in FIPS even when SHA1 is blocked
+            # as signature algorithm.
+            if self._fips_enabled and isinstance(
+                padding._mgf._algorithm, hashes.SHA1
+            ):
+                return True
+            else:
+                return self.hash_supported(padding._mgf._algorithm)
+        elif isinstance(padding, OAEP) and isinstance(padding._mgf, MGF1):
+            return self._oaep_hash_supported(
+                padding._mgf._algorithm
+            ) and self._oaep_hash_supported(padding._algorithm)
+        else:
+            return False
+
+    def rsa_encryption_supported(self, padding: AsymmetricPadding) -> bool:
+        if self._fips_enabled and isinstance(padding, PKCS1v15):
+            return False
+        else:
+            return self.rsa_padding_supported(padding)
+
+    def dsa_supported(self) -> bool:
+        return (
+            not self._lib.CRYPTOGRAPHY_IS_BORINGSSL and not self._fips_enabled
+        )
+
+    def dsa_hash_supported(self, algorithm: hashes.HashAlgorithm) -> bool:
+        if not self.dsa_supported():
+            return False
+        return self.signature_hash_supported(algorithm)
+
+    def cmac_algorithm_supported(self, algorithm) -> bool:
+        return self.cipher_supported(
+            algorithm, CBC(b"\x00" * algorithm.block_size)
+        )
+
+    def _cert2ossl(self, cert: x509.Certificate) -> typing.Any:
+        data = cert.public_bytes(serialization.Encoding.DER)
+        mem_bio = self._bytes_to_bio(data)
+        x509 = self._lib.d2i_X509_bio(mem_bio.bio, self._ffi.NULL)
+        self.openssl_assert(x509 != self._ffi.NULL)
+        x509 = self._ffi.gc(x509, self._lib.X509_free)
+        return x509
+
+    def _ossl2cert(self, x509_ptr: typing.Any) -> x509.Certificate:
+        bio = self._create_mem_bio_gc()
+        res = self._lib.i2d_X509_bio(bio, x509_ptr)
+        self.openssl_assert(res == 1)
+        return x509.load_der_x509_certificate(self._read_mem_bio(bio))
+
+    def _key2ossl(self, key: PKCS12PrivateKeyTypes) -> typing.Any:
+        data = key.private_bytes(
+            serialization.Encoding.DER,
+            serialization.PrivateFormat.PKCS8,
+            serialization.NoEncryption(),
+        )
+        mem_bio = self._bytes_to_bio(data)
+
+        evp_pkey = self._lib.d2i_PrivateKey_bio(
+            mem_bio.bio,
+            self._ffi.NULL,
+        )
+        self.openssl_assert(evp_pkey != self._ffi.NULL)
+        return self._ffi.gc(evp_pkey, self._lib.EVP_PKEY_free)
+
+    def _handle_key_loading_error(
+        self, errors: list[rust_openssl.OpenSSLError]
+    ) -> typing.NoReturn:
+        if not errors:
+            raise ValueError(
+                "Could not deserialize key data. The data may be in an "
+                "incorrect format or it may be encrypted with an unsupported "
+                "algorithm."
+            )
+
+        elif (
+            errors[0]._lib_reason_match(
+                self._lib.ERR_LIB_EVP, self._lib.EVP_R_BAD_DECRYPT
+            )
+            or errors[0]._lib_reason_match(
+                self._lib.ERR_LIB_PKCS12,
+                self._lib.PKCS12_R_PKCS12_CIPHERFINAL_ERROR,
+            )
+            or (
+                self._lib.Cryptography_HAS_PROVIDERS
+                and errors[0]._lib_reason_match(
+                    self._lib.ERR_LIB_PROV,
+                    self._lib.PROV_R_BAD_DECRYPT,
+                )
+            )
+        ):
+            raise ValueError("Bad decrypt. Incorrect password?")
+
+        elif any(
+            error._lib_reason_match(
+                self._lib.ERR_LIB_EVP,
+                self._lib.EVP_R_UNSUPPORTED_PRIVATE_KEY_ALGORITHM,
+            )
+            for error in errors
+        ):
+            raise ValueError("Unsupported public key algorithm.")
+
+        else:
+            raise ValueError(
+                "Could not deserialize key data. The data may be in an "
+                "incorrect format, it may be encrypted with an unsupported "
+                "algorithm, or it may be an unsupported key type (e.g. EC "
+                "curves with explicit parameters).",
+                errors,
+            )
+
+    def elliptic_curve_supported(self, curve: ec.EllipticCurve) -> bool:
+        if self._fips_enabled and not isinstance(
+            curve, self._fips_ecdh_curves
+        ):
+            return False
+
+        return rust_openssl.ec.curve_supported(curve)
+
+    def elliptic_curve_signature_algorithm_supported(
+        self,
+        signature_algorithm: ec.EllipticCurveSignatureAlgorithm,
+        curve: ec.EllipticCurve,
+    ) -> bool:
+        # We only support ECDSA right now.
+        if not isinstance(signature_algorithm, ec.ECDSA):
+            return False
+
+        return self.elliptic_curve_supported(curve) and (
+            isinstance(signature_algorithm.algorithm, asym_utils.Prehashed)
+            or self.hash_supported(signature_algorithm.algorithm)
+        )
+
+    def elliptic_curve_exchange_algorithm_supported(
+        self, algorithm: ec.ECDH, curve: ec.EllipticCurve
+    ) -> bool:
+        return self.elliptic_curve_supported(curve) and isinstance(
+            algorithm, ec.ECDH
+        )
+
+    def dh_supported(self) -> bool:
+        return not self._lib.CRYPTOGRAPHY_IS_BORINGSSL
+
+    def dh_x942_serialization_supported(self) -> bool:
+        return self._lib.Cryptography_HAS_EVP_PKEY_DHX == 1
+
+    def x25519_supported(self) -> bool:
+        if self._fips_enabled:
+            return False
+        return True
+
+    def x448_supported(self) -> bool:
+        if self._fips_enabled:
+            return False
+        return (
+            not self._lib.CRYPTOGRAPHY_IS_LIBRESSL
+            and not self._lib.CRYPTOGRAPHY_IS_BORINGSSL
+        )
+
+    def ed25519_supported(self) -> bool:
+        if self._fips_enabled:
+            return False
+        return True
+
+    def ed448_supported(self) -> bool:
+        if self._fips_enabled:
+            return False
+        return (
+            not self._lib.CRYPTOGRAPHY_IS_LIBRESSL
+            and not self._lib.CRYPTOGRAPHY_IS_BORINGSSL
+        )
+
+    def aead_cipher_supported(self, cipher) -> bool:
+        return aead._aead_cipher_supported(self, cipher)
+
+    def _zero_data(self, data, length: int) -> None:
+        # We clear things this way because at the moment we're not
+        # sure of a better way that can guarantee it overwrites the
+        # memory of a bytearray and doesn't just replace the underlying char *.
+        for i in range(length):
+            data[i] = 0
+
+    @contextlib.contextmanager
+    def _zeroed_null_terminated_buf(self, data):
+        """
+        This method takes bytes, which can be a bytestring or a mutable
+        buffer like a bytearray, and yields a null-terminated version of that
+        data. This is required because PKCS12_parse doesn't take a length with
+        its password char * and ffi.from_buffer doesn't provide null
+        termination. So, to support zeroing the data via bytearray we
+        need to build this ridiculous construct that copies the memory, but
+        zeroes it after use.
+        """
+        if data is None:
+            yield self._ffi.NULL
+        else:
+            data_len = len(data)
+            buf = self._ffi.new("char[]", data_len + 1)
+            self._ffi.memmove(buf, data, data_len)
+            try:
+                yield buf
+            finally:
+                # Cast to a uint8_t * so we can assign by integer
+                self._zero_data(self._ffi.cast("uint8_t *", buf), data_len)
+
+    def load_key_and_certificates_from_pkcs12(
+        self, data: bytes, password: bytes | None
+    ) -> tuple[
+        PrivateKeyTypes | None,
+        x509.Certificate | None,
+        list[x509.Certificate],
+    ]:
+        pkcs12 = self.load_pkcs12(data, password)
+        return (
+            pkcs12.key,
+            pkcs12.cert.certificate if pkcs12.cert else None,
+            [cert.certificate for cert in pkcs12.additional_certs],
+        )
+
+    def load_pkcs12(
+        self, data: bytes, password: bytes | None
+    ) -> PKCS12KeyAndCertificates:
+        if password is not None:
+            utils._check_byteslike("password", password)
+
+        bio = self._bytes_to_bio(data)
+        p12 = self._lib.d2i_PKCS12_bio(bio.bio, self._ffi.NULL)
+        if p12 == self._ffi.NULL:
+            self._consume_errors()
+            raise ValueError("Could not deserialize PKCS12 data")
+
+        p12 = self._ffi.gc(p12, self._lib.PKCS12_free)
+        evp_pkey_ptr = self._ffi.new("EVP_PKEY **")
+        x509_ptr = self._ffi.new("X509 **")
+        sk_x509_ptr = self._ffi.new("Cryptography_STACK_OF_X509 **")
+        with self._zeroed_null_terminated_buf(password) as password_buf:
+            res = self._lib.PKCS12_parse(
+                p12, password_buf, evp_pkey_ptr, x509_ptr, sk_x509_ptr
+            )
+        if res == 0:
+            self._consume_errors()
+            raise ValueError("Invalid password or PKCS12 data")
+
+        cert = None
+        key = None
+        additional_certificates = []
+
+        if evp_pkey_ptr[0] != self._ffi.NULL:
+            evp_pkey = self._ffi.gc(evp_pkey_ptr[0], self._lib.EVP_PKEY_free)
+            # We don't support turning off RSA key validation when loading
+            # PKCS12 keys
+            key = rust_openssl.keys.private_key_from_ptr(
+                int(self._ffi.cast("uintptr_t", evp_pkey)),
+                unsafe_skip_rsa_key_validation=False,
+            )
+
+        if x509_ptr[0] != self._ffi.NULL:
+            x509 = self._ffi.gc(x509_ptr[0], self._lib.X509_free)
+            cert_obj = self._ossl2cert(x509)
+            name = None
+            maybe_name = self._lib.X509_alias_get0(x509, self._ffi.NULL)
+            if maybe_name != self._ffi.NULL:
+                name = self._ffi.string(maybe_name)
+            cert = PKCS12Certificate(cert_obj, name)
+
+        if sk_x509_ptr[0] != self._ffi.NULL:
+            sk_x509 = self._ffi.gc(sk_x509_ptr[0], self._lib.sk_X509_free)
+            num = self._lib.sk_X509_num(sk_x509_ptr[0])
+
+            # In OpenSSL < 3.0.0 PKCS12 parsing reverses the order of the
+            # certificates.
+            indices: typing.Iterable[int]
+            if (
+                self._lib.CRYPTOGRAPHY_OPENSSL_300_OR_GREATER
+                or self._lib.CRYPTOGRAPHY_IS_BORINGSSL
+            ):
+                indices = range(num)
+            else:
+                indices = reversed(range(num))
+
+            for i in indices:
+                x509 = self._lib.sk_X509_value(sk_x509, i)
+                self.openssl_assert(x509 != self._ffi.NULL)
+                x509 = self._ffi.gc(x509, self._lib.X509_free)
+                addl_cert = self._ossl2cert(x509)
+                addl_name = None
+                maybe_name = self._lib.X509_alias_get0(x509, self._ffi.NULL)
+                if maybe_name != self._ffi.NULL:
+                    addl_name = self._ffi.string(maybe_name)
+                additional_certificates.append(
+                    PKCS12Certificate(addl_cert, addl_name)
+                )
+
+        return PKCS12KeyAndCertificates(key, cert, additional_certificates)
+
+    def serialize_key_and_certificates_to_pkcs12(
+        self,
+        name: bytes | None,
+        key: PKCS12PrivateKeyTypes | None,
+        cert: x509.Certificate | None,
+        cas: list[_PKCS12CATypes] | None,
+        encryption_algorithm: serialization.KeySerializationEncryption,
+    ) -> bytes:
+        password = None
+        if name is not None:
+            utils._check_bytes("name", name)
+
+        if isinstance(encryption_algorithm, serialization.NoEncryption):
+            nid_cert = -1
+            nid_key = -1
+            pkcs12_iter = 0
+            mac_iter = 0
+            mac_alg = self._ffi.NULL
+        elif isinstance(
+            encryption_algorithm, serialization.BestAvailableEncryption
+        ):
+            # PKCS12 encryption is hopeless trash and can never be fixed.
+            # OpenSSL 3 supports PBESv2, but Libre and Boring do not, so
+            # we use PBESv1 with 3DES on the older paths.
+            if self._lib.CRYPTOGRAPHY_OPENSSL_300_OR_GREATER:
+                nid_cert = self._lib.NID_aes_256_cbc
+                nid_key = self._lib.NID_aes_256_cbc
+            else:
+                nid_cert = self._lib.NID_pbe_WithSHA1And3_Key_TripleDES_CBC
+                nid_key = self._lib.NID_pbe_WithSHA1And3_Key_TripleDES_CBC
+            # At least we can set this higher than OpenSSL's default
+            pkcs12_iter = 20000
+            # mac_iter chosen for compatibility reasons, see:
+            # https://www.openssl.org/docs/man1.1.1/man3/PKCS12_create.html
+            # Did we mention how lousy PKCS12 encryption is?
+            mac_iter = 1
+            # MAC algorithm can only be set on OpenSSL 3.0.0+
+            mac_alg = self._ffi.NULL
+            password = encryption_algorithm.password
+        elif (
+            isinstance(
+                encryption_algorithm, serialization._KeySerializationEncryption
+            )
+            and encryption_algorithm._format
+            is serialization.PrivateFormat.PKCS12
+        ):
+            # Default to OpenSSL's defaults. Behavior will vary based on the
+            # version of OpenSSL cryptography is compiled against.
+            nid_cert = 0
+            nid_key = 0
+            # Use the default iters we use in best available
+            pkcs12_iter = 20000
+            # See the Best Available comment for why this is 1
+            mac_iter = 1
+            password = encryption_algorithm.password
+            keycertalg = encryption_algorithm._key_cert_algorithm
+            if keycertalg is PBES.PBESv1SHA1And3KeyTripleDESCBC:
+                nid_cert = self._lib.NID_pbe_WithSHA1And3_Key_TripleDES_CBC
+                nid_key = self._lib.NID_pbe_WithSHA1And3_Key_TripleDES_CBC
+            elif keycertalg is PBES.PBESv2SHA256AndAES256CBC:
+                if not self._lib.CRYPTOGRAPHY_OPENSSL_300_OR_GREATER:
+                    raise UnsupportedAlgorithm(
+                        "PBESv2 is not supported by this version of OpenSSL"
+                    )
+                nid_cert = self._lib.NID_aes_256_cbc
+                nid_key = self._lib.NID_aes_256_cbc
+            else:
+                assert keycertalg is None
+                # We use OpenSSL's defaults
+
+            if encryption_algorithm._hmac_hash is not None:
+                if not self._lib.Cryptography_HAS_PKCS12_SET_MAC:
+                    raise UnsupportedAlgorithm(
+                        "Setting MAC algorithm is not supported by this "
+                        "version of OpenSSL."
+                    )
+                mac_alg = self._evp_md_non_null_from_algorithm(
+                    encryption_algorithm._hmac_hash
+                )
+                self.openssl_assert(mac_alg != self._ffi.NULL)
+            else:
+                mac_alg = self._ffi.NULL
+
+            if encryption_algorithm._kdf_rounds is not None:
+                pkcs12_iter = encryption_algorithm._kdf_rounds
+
+        else:
+            raise ValueError("Unsupported key encryption type")
+
+        if cas is None or len(cas) == 0:
+            sk_x509 = self._ffi.NULL
+        else:
+            sk_x509 = self._lib.sk_X509_new_null()
+            sk_x509 = self._ffi.gc(sk_x509, self._lib.sk_X509_free)
+
+            # This list is to keep the x509 values alive until end of function
+            ossl_cas = []
+            for ca in cas:
+                if isinstance(ca, PKCS12Certificate):
+                    ca_alias = ca.friendly_name
+                    ossl_ca = self._cert2ossl(ca.certificate)
+                    if ca_alias is None:
+                        res = self._lib.X509_alias_set1(
+                            ossl_ca, self._ffi.NULL, -1
+                        )
+                    else:
+                        res = self._lib.X509_alias_set1(
+                            ossl_ca, ca_alias, len(ca_alias)
+                        )
+                    self.openssl_assert(res == 1)
+                else:
+                    ossl_ca = self._cert2ossl(ca)
+                ossl_cas.append(ossl_ca)
+                res = self._lib.sk_X509_push(sk_x509, ossl_ca)
+                backend.openssl_assert(res >= 1)
+
+        with self._zeroed_null_terminated_buf(password) as password_buf:
+            with self._zeroed_null_terminated_buf(name) as name_buf:
+                ossl_cert = self._cert2ossl(cert) if cert else self._ffi.NULL
+                ossl_pkey = (
+                    self._key2ossl(key) if key is not None else self._ffi.NULL
+                )
+
+                p12 = self._lib.PKCS12_create(
+                    password_buf,
+                    name_buf,
+                    ossl_pkey,
+                    ossl_cert,
+                    sk_x509,
+                    nid_key,
+                    nid_cert,
+                    pkcs12_iter,
+                    mac_iter,
+                    0,
+                )
+                if p12 == self._ffi.NULL:
+                    errors = self._consume_errors()
+                    raise ValueError(
+                        (
+                            "Failed to create PKCS12 (does the key match the "
+                            "certificate?)"
+                        ),
+                        errors,
+                    )
+
+            if (
+                self._lib.Cryptography_HAS_PKCS12_SET_MAC
+                and mac_alg != self._ffi.NULL
+            ):
+                self._lib.PKCS12_set_mac(
+                    p12,
+                    password_buf,
+                    -1,
+                    self._ffi.NULL,
+                    0,
+                    mac_iter,
+                    mac_alg,
+                )
+
+        self.openssl_assert(p12 != self._ffi.NULL)
+        p12 = self._ffi.gc(p12, self._lib.PKCS12_free)
+
+        bio = self._create_mem_bio_gc()
+        res = self._lib.i2d_PKCS12_bio(bio, p12)
+        self.openssl_assert(res > 0)
+        return self._read_mem_bio(bio)
+
+    def poly1305_supported(self) -> bool:
+        if self._fips_enabled:
+            return False
+        elif (
+            self._lib.CRYPTOGRAPHY_IS_BORINGSSL
+            or self._lib.CRYPTOGRAPHY_IS_LIBRESSL
+        ):
+            return True
+        else:
+            return self._lib.Cryptography_HAS_POLY1305 == 1
+
+    def pkcs7_supported(self) -> bool:
+        return not self._lib.CRYPTOGRAPHY_IS_BORINGSSL
+
+
+class GetCipherByName:
+    def __init__(self, fmt: str):
+        self._fmt = fmt
+
+    def __call__(self, backend: Backend, cipher: CipherAlgorithm, mode: Mode):
+        cipher_name = self._fmt.format(cipher=cipher, mode=mode).lower()
+        evp_cipher = backend._lib.EVP_get_cipherbyname(
+            cipher_name.encode("ascii")
+        )
+
+        # try EVP_CIPHER_fetch if present
+        if (
+            evp_cipher == backend._ffi.NULL
+            and backend._lib.Cryptography_HAS_300_EVP_CIPHER
+        ):
+            evp_cipher = backend._lib.EVP_CIPHER_fetch(
+                backend._ffi.NULL,
+                cipher_name.encode("ascii"),
+                backend._ffi.NULL,
+            )
+
+        backend._consume_errors()
+        return evp_cipher
+
+
+def _get_xts_cipher(backend: Backend, cipher: AES, mode):
+    cipher_name = f"aes-{cipher.key_size // 2}-xts"
+    return backend._lib.EVP_get_cipherbyname(cipher_name.encode("ascii"))
+
+
+backend = Backend()

gcloud/virtenv/lib/python3.12/site-packages/cryptography/hazmat/backends/openssl/ciphers.py

@@ -0,0 +1,282 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+
+from __future__ import annotations
+
+import typing
+
+from cryptography.exceptions import InvalidTag, UnsupportedAlgorithm, _Reasons
+from cryptography.hazmat.primitives import ciphers
+from cryptography.hazmat.primitives.ciphers import algorithms, modes
+
+if typing.TYPE_CHECKING:
+    from cryptography.hazmat.backends.openssl.backend import Backend
+
+
+class _CipherContext:
+    _ENCRYPT = 1
+    _DECRYPT = 0
+    _MAX_CHUNK_SIZE = 2**29
+
+    def __init__(self, backend: Backend, cipher, mode, operation: int) -> None:
+        self._backend = backend
+        self._cipher = cipher
+        self._mode = mode
+        self._operation = operation
+        self._tag: bytes | None = None
+
+        if isinstance(self._cipher, ciphers.BlockCipherAlgorithm):
+            self._block_size_bytes = self._cipher.block_size // 8
+        else:
+            self._block_size_bytes = 1
+
+        ctx = self._backend._lib.EVP_CIPHER_CTX_new()
+        ctx = self._backend._ffi.gc(
+            ctx, self._backend._lib.EVP_CIPHER_CTX_free
+        )
+
+        registry = self._backend._cipher_registry
+        try:
+            adapter = registry[type(cipher), type(mode)]
+        except KeyError:
+            raise UnsupportedAlgorithm(
+                "cipher {} in {} mode is not supported "
+                "by this backend.".format(
+                    cipher.name, mode.name if mode else mode
+                ),
+                _Reasons.UNSUPPORTED_CIPHER,
+            )
+
+        evp_cipher = adapter(self._backend, cipher, mode)
+        if evp_cipher == self._backend._ffi.NULL:
+            msg = f"cipher {cipher.name} "
+            if mode is not None:
+                msg += f"in {mode.name} mode "
+            msg += (
+                "is not supported by this backend (Your version of OpenSSL "
+                "may be too old. Current version: {}.)"
+            ).format(self._backend.openssl_version_text())
+            raise UnsupportedAlgorithm(msg, _Reasons.UNSUPPORTED_CIPHER)
+
+        if isinstance(mode, modes.ModeWithInitializationVector):
+            iv_nonce = self._backend._ffi.from_buffer(
+                mode.initialization_vector
+            )
+        elif isinstance(mode, modes.ModeWithTweak):
+            iv_nonce = self._backend._ffi.from_buffer(mode.tweak)
+        elif isinstance(mode, modes.ModeWithNonce):
+            iv_nonce = self._backend._ffi.from_buffer(mode.nonce)
+        elif isinstance(cipher, algorithms.ChaCha20):
+            iv_nonce = self._backend._ffi.from_buffer(cipher.nonce)
+        else:
+            iv_nonce = self._backend._ffi.NULL
+        # begin init with cipher and operation type
+        res = self._backend._lib.EVP_CipherInit_ex(
+            ctx,
+            evp_cipher,
+            self._backend._ffi.NULL,
+            self._backend._ffi.NULL,
+            self._backend._ffi.NULL,
+            operation,
+        )
+        self._backend.openssl_assert(res != 0)
+        # set the key length to handle variable key ciphers
+        res = self._backend._lib.EVP_CIPHER_CTX_set_key_length(
+            ctx, len(cipher.key)
+        )
+        self._backend.openssl_assert(res != 0)
+        if isinstance(mode, modes.GCM):
+            res = self._backend._lib.EVP_CIPHER_CTX_ctrl(
+                ctx,
+                self._backend._lib.EVP_CTRL_AEAD_SET_IVLEN,
+                len(iv_nonce),
+                self._backend._ffi.NULL,
+            )
+            self._backend.openssl_assert(res != 0)
+            if mode.tag is not None:
+                res = self._backend._lib.EVP_CIPHER_CTX_ctrl(
+                    ctx,
+                    self._backend._lib.EVP_CTRL_AEAD_SET_TAG,
+                    len(mode.tag),
+                    mode.tag,
+                )
+                self._backend.openssl_assert(res != 0)
+                self._tag = mode.tag
+
+        # pass key/iv
+        res = self._backend._lib.EVP_CipherInit_ex(
+            ctx,
+            self._backend._ffi.NULL,
+            self._backend._ffi.NULL,
+            self._backend._ffi.from_buffer(cipher.key),
+            iv_nonce,
+            operation,
+        )
+
+        # Check for XTS mode duplicate keys error
+        errors = self._backend._consume_errors()
+        lib = self._backend._lib
+        if res == 0 and (
+            (
+                not lib.CRYPTOGRAPHY_IS_LIBRESSL
+                and errors[0]._lib_reason_match(
+                    lib.ERR_LIB_EVP, lib.EVP_R_XTS_DUPLICATED_KEYS
+                )
+            )
+            or (
+                lib.Cryptography_HAS_PROVIDERS
+                and errors[0]._lib_reason_match(
+                    lib.ERR_LIB_PROV, lib.PROV_R_XTS_DUPLICATED_KEYS
+                )
+            )
+        ):
+            raise ValueError("In XTS mode duplicated keys are not allowed")
+
+        self._backend.openssl_assert(res != 0, errors=errors)
+
+        # We purposely disable padding here as it's handled higher up in the
+        # API.
+        self._backend._lib.EVP_CIPHER_CTX_set_padding(ctx, 0)
+        self._ctx = ctx
+
+    def update(self, data: bytes) -> bytes:
+        buf = bytearray(len(data) + self._block_size_bytes - 1)
+        n = self.update_into(data, buf)
+        return bytes(buf[:n])
+
+    def update_into(self, data: bytes, buf: bytes) -> int:
+        total_data_len = len(data)
+        if len(buf) < (total_data_len + self._block_size_bytes - 1):
+            raise ValueError(
+                "buffer must be at least {} bytes for this payload".format(
+                    len(data) + self._block_size_bytes - 1
+                )
+            )
+
+        data_processed = 0
+        total_out = 0
+        outlen = self._backend._ffi.new("int *")
+        baseoutbuf = self._backend._ffi.from_buffer(buf, require_writable=True)
+        baseinbuf = self._backend._ffi.from_buffer(data)
+
+        while data_processed != total_data_len:
+            outbuf = baseoutbuf + total_out
+            inbuf = baseinbuf + data_processed
+            inlen = min(self._MAX_CHUNK_SIZE, total_data_len - data_processed)
+
+            res = self._backend._lib.EVP_CipherUpdate(
+                self._ctx, outbuf, outlen, inbuf, inlen
+            )
+            if res == 0 and isinstance(self._mode, modes.XTS):
+                self._backend._consume_errors()
+                raise ValueError(
+                    "In XTS mode you must supply at least a full block in the "
+                    "first update call. For AES this is 16 bytes."
+                )
+            else:
+                self._backend.openssl_assert(res != 0)
+            data_processed += inlen
+            total_out += outlen[0]
+
+        return total_out
+
+    def finalize(self) -> bytes:
+        if (
+            self._operation == self._DECRYPT
+            and isinstance(self._mode, modes.ModeWithAuthenticationTag)
+            and self.tag is None
+        ):
+            raise ValueError(
+                "Authentication tag must be provided when decrypting."
+            )
+
+        buf = self._backend._ffi.new("unsigned char[]", self._block_size_bytes)
+        outlen = self._backend._ffi.new("int *")
+        res = self._backend._lib.EVP_CipherFinal_ex(self._ctx, buf, outlen)
+        if res == 0:
+            errors = self._backend._consume_errors()
+
+            if not errors and isinstance(self._mode, modes.GCM):
+                raise InvalidTag
+
+            lib = self._backend._lib
+            self._backend.openssl_assert(
+                errors[0]._lib_reason_match(
+                    lib.ERR_LIB_EVP,
+                    lib.EVP_R_DATA_NOT_MULTIPLE_OF_BLOCK_LENGTH,
+                )
+                or (
+                    lib.Cryptography_HAS_PROVIDERS
+                    and errors[0]._lib_reason_match(
+                        lib.ERR_LIB_PROV,
+                        lib.PROV_R_WRONG_FINAL_BLOCK_LENGTH,
+                    )
+                )
+                or (
+                    lib.CRYPTOGRAPHY_IS_BORINGSSL
+                    and errors[0].reason
+                    == lib.CIPHER_R_DATA_NOT_MULTIPLE_OF_BLOCK_LENGTH
+                ),
+                errors=errors,
+            )
+            raise ValueError(
+                "The length of the provided data is not a multiple of "
+                "the block length."
+            )
+
+        if (
+            isinstance(self._mode, modes.GCM)
+            and self._operation == self._ENCRYPT
+        ):
+            tag_buf = self._backend._ffi.new(
+                "unsigned char[]", self._block_size_bytes
+            )
+            res = self._backend._lib.EVP_CIPHER_CTX_ctrl(
+                self._ctx,
+                self._backend._lib.EVP_CTRL_AEAD_GET_TAG,
+                self._block_size_bytes,
+                tag_buf,
+            )
+            self._backend.openssl_assert(res != 0)
+            self._tag = self._backend._ffi.buffer(tag_buf)[:]
+
+        res = self._backend._lib.EVP_CIPHER_CTX_reset(self._ctx)
+        self._backend.openssl_assert(res == 1)
+        return self._backend._ffi.buffer(buf)[: outlen[0]]
+
+    def finalize_with_tag(self, tag: bytes) -> bytes:
+        tag_len = len(tag)
+        if tag_len < self._mode._min_tag_length:
+            raise ValueError(
+                "Authentication tag must be {} bytes or longer.".format(
+                    self._mode._min_tag_length
+                )
+            )
+        elif tag_len > self._block_size_bytes:
+            raise ValueError(
+                "Authentication tag cannot be more than {} bytes.".format(
+                    self._block_size_bytes
+                )
+            )
+        res = self._backend._lib.EVP_CIPHER_CTX_ctrl(
+            self._ctx, self._backend._lib.EVP_CTRL_AEAD_SET_TAG, len(tag), tag
+        )
+        self._backend.openssl_assert(res != 0)
+        self._tag = tag
+        return self.finalize()
+
+    def authenticate_additional_data(self, data: bytes) -> None:
+        outlen = self._backend._ffi.new("int *")
+        res = self._backend._lib.EVP_CipherUpdate(
+            self._ctx,
+            self._backend._ffi.NULL,
+            outlen,
+            self._backend._ffi.from_buffer(data),
+            len(data),
+        )
+        self._backend.openssl_assert(res != 0)
+
+    @property
+    def tag(self) -> bytes | None:
+        return self._tag

gcloud/virtenv/lib/python3.12/site-packages/cryptography/hazmat/backends/openssl/decode_asn1.py

@@ -0,0 +1,32 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+
+from __future__ import annotations
+
+from cryptography import x509
+
+#    CRLReason ::= ENUMERATED {
+#        unspecified             (0),
+#        keyCompromise           (1),
+#        cACompromise            (2),
+#        affiliationChanged      (3),
+#        superseded              (4),
+#        cessationOfOperation    (5),
+#        certificateHold         (6),
+#             -- value 7 is not used
+#        removeFromCRL           (8),
+#        privilegeWithdrawn      (9),
+#        aACompromise           (10) }
+_CRL_ENTRY_REASON_ENUM_TO_CODE = {
+    x509.ReasonFlags.unspecified: 0,
+    x509.ReasonFlags.key_compromise: 1,
+    x509.ReasonFlags.ca_compromise: 2,
+    x509.ReasonFlags.affiliation_changed: 3,
+    x509.ReasonFlags.superseded: 4,
+    x509.ReasonFlags.cessation_of_operation: 5,
+    x509.ReasonFlags.certificate_hold: 6,
+    x509.ReasonFlags.remove_from_crl: 8,
+    x509.ReasonFlags.privilege_withdrawn: 9,
+    x509.ReasonFlags.aa_compromise: 10,
+}

gcloud/virtenv/lib/python3.12/site-packages/cryptography/hazmat/bindings/__init__.py

@@ -0,0 +1,3 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.

gcloud/virtenv/lib/python3.12/site-packages/cryptography/hazmat/bindings/_rust/__init__.pyi

@@ -0,0 +1,17 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+
+import typing
+
+def check_pkcs7_padding(data: bytes) -> bool: ...
+def check_ansix923_padding(data: bytes) -> bool: ...
+
+class ObjectIdentifier:
+    def __init__(self, val: str) -> None: ...
+    @property
+    def dotted_string(self) -> str: ...
+    @property
+    def _name(self) -> str: ...
+
+T = typing.TypeVar("T")

gcloud/virtenv/lib/python3.12/site-packages/cryptography/hazmat/bindings/_rust/_openssl.pyi

@@ -0,0 +1,8 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+
+import typing
+
+lib = typing.Any
+ffi = typing.Any

gcloud/virtenv/lib/python3.12/site-packages/cryptography/hazmat/bindings/_rust/asn1.pyi

@@ -0,0 +1,14 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+
+class TestCertificate:
+    not_after_tag: int
+    not_before_tag: int
+    issuer_value_tags: list[int]
+    subject_value_tags: list[int]
+
+def decode_dss_signature(signature: bytes) -> tuple[int, int]: ...
+def encode_dss_signature(r: int, s: int) -> bytes: ...
+def parse_spki_for_data(data: bytes) -> bytes: ...
+def test_parse_certificate(data: bytes) -> TestCertificate: ...

gcloud/virtenv/lib/python3.12/site-packages/cryptography/hazmat/bindings/_rust/exceptions.pyi

@@ -0,0 +1,17 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+
+class _Reasons:
+    BACKEND_MISSING_INTERFACE: _Reasons
+    UNSUPPORTED_HASH: _Reasons
+    UNSUPPORTED_CIPHER: _Reasons
+    UNSUPPORTED_PADDING: _Reasons
+    UNSUPPORTED_MGF: _Reasons
+    UNSUPPORTED_PUBLIC_KEY_ALGORITHM: _Reasons
+    UNSUPPORTED_ELLIPTIC_CURVE: _Reasons
+    UNSUPPORTED_SERIALIZATION: _Reasons
+    UNSUPPORTED_X509: _Reasons
+    UNSUPPORTED_EXCHANGE_ALGORITHM: _Reasons
+    UNSUPPORTED_DIFFIE_HELLMAN: _Reasons
+    UNSUPPORTED_MAC: _Reasons

gcloud/virtenv/lib/python3.12/site-packages/cryptography/hazmat/bindings/_rust/ocsp.pyi

@@ -0,0 +1,23 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+
+from cryptography.hazmat.primitives import hashes
+from cryptography.hazmat.primitives.asymmetric.types import PrivateKeyTypes
+from cryptography.x509.ocsp import (
+    OCSPRequest,
+    OCSPRequestBuilder,
+    OCSPResponse,
+    OCSPResponseBuilder,
+    OCSPResponseStatus,
+)
+
+def load_der_ocsp_request(data: bytes) -> OCSPRequest: ...
+def load_der_ocsp_response(data: bytes) -> OCSPResponse: ...
+def create_ocsp_request(builder: OCSPRequestBuilder) -> OCSPRequest: ...
+def create_ocsp_response(
+    status: OCSPResponseStatus,
+    builder: OCSPResponseBuilder | None,
+    private_key: PrivateKeyTypes | None,
+    hash_algorithm: hashes.HashAlgorithm | None,
+) -> OCSPResponse: ...

gcloud/virtenv/lib/python3.12/site-packages/cryptography/hazmat/bindings/_rust/openssl/__init__.pyi

@@ -0,0 +1,59 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+
+import typing
+
+from cryptography.hazmat.bindings._rust.openssl import (
+    aead,
+    cmac,
+    dh,
+    dsa,
+    ec,
+    ed448,
+    ed25519,
+    hashes,
+    hmac,
+    kdf,
+    keys,
+    poly1305,
+    rsa,
+    x448,
+    x25519,
+)
+
+__all__ = [
+    "openssl_version",
+    "raise_openssl_error",
+    "aead",
+    "cmac",
+    "dh",
+    "dsa",
+    "ec",
+    "hashes",
+    "hmac",
+    "kdf",
+    "keys",
+    "ed448",
+    "ed25519",
+    "rsa",
+    "poly1305",
+    "x448",
+    "x25519",
+]
+
+_legacy_provider_loaded: bool
+
+def openssl_version() -> int: ...
+def raise_openssl_error() -> typing.NoReturn: ...
+def capture_error_stack() -> list[OpenSSLError]: ...
+def is_fips_enabled() -> bool: ...
+
+class OpenSSLError:
+    @property
+    def lib(self) -> int: ...
+    @property
+    def reason(self) -> int: ...
+    @property
+    def reason_text(self) -> bytes: ...
+    def _lib_reason_match(self, lib: int, reason: int) -> bool: ...

gcloud/virtenv/lib/python3.12/site-packages/cryptography/hazmat/bindings/_rust/openssl/aead.pyi

@@ -0,0 +1,69 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+
+class ChaCha20Poly1305:
+    def __init__(self, key: bytes) -> None: ...
+    @staticmethod
+    def generate_key() -> bytes: ...
+    def encrypt(
+        self,
+        nonce: bytes,
+        data: bytes,
+        associated_data: bytes | None,
+    ) -> bytes: ...
+    def decrypt(
+        self,
+        nonce: bytes,
+        data: bytes,
+        associated_data: bytes | None,
+    ) -> bytes: ...
+
+class AESSIV:
+    def __init__(self, key: bytes) -> None: ...
+    @staticmethod
+    def generate_key(key_size: int) -> bytes: ...
+    def encrypt(
+        self,
+        data: bytes,
+        associated_data: list[bytes] | None,
+    ) -> bytes: ...
+    def decrypt(
+        self,
+        data: bytes,
+        associated_data: list[bytes] | None,
+    ) -> bytes: ...
+
+class AESOCB3:
+    def __init__(self, key: bytes) -> None: ...
+    @staticmethod
+    def generate_key(key_size: int) -> bytes: ...
+    def encrypt(
+        self,
+        nonce: bytes,
+        data: bytes,
+        associated_data: bytes | None,
+    ) -> bytes: ...
+    def decrypt(
+        self,
+        nonce: bytes,
+        data: bytes,
+        associated_data: bytes | None,
+    ) -> bytes: ...
+
+class AESGCMSIV:
+    def __init__(self, key: bytes) -> None: ...
+    @staticmethod
+    def generate_key(key_size: int) -> bytes: ...
+    def encrypt(
+        self,
+        nonce: bytes,
+        data: bytes,
+        associated_data: bytes | None,
+    ) -> bytes: ...
+    def decrypt(
+        self,
+        nonce: bytes,
+        data: bytes,
+        associated_data: bytes | None,
+    ) -> bytes: ...

gcloud/virtenv/lib/python3.12/site-packages/cryptography/hazmat/bindings/_rust/openssl/cmac.pyi

@@ -0,0 +1,18 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+
+import typing
+
+from cryptography.hazmat.primitives import ciphers
+
+class CMAC:
+    def __init__(
+        self,
+        algorithm: ciphers.BlockCipherAlgorithm,
+        backend: typing.Any = None,
+    ) -> None: ...
+    def update(self, data: bytes) -> None: ...
+    def finalize(self) -> bytes: ...
+    def verify(self, signature: bytes) -> None: ...
+    def copy(self) -> CMAC: ...

gcloud/virtenv/lib/python3.12/site-packages/cryptography/hazmat/bindings/_rust/openssl/dh.pyi

@@ -0,0 +1,51 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+
+import typing
+
+from cryptography.hazmat.primitives.asymmetric import dh
+
+MIN_MODULUS_SIZE: int
+
+class DHPrivateKey: ...
+class DHPublicKey: ...
+class DHParameters: ...
+
+class DHPrivateNumbers:
+    def __init__(self, x: int, public_numbers: DHPublicNumbers) -> None: ...
+    def private_key(self, backend: typing.Any = None) -> dh.DHPrivateKey: ...
+    @property
+    def x(self) -> int: ...
+    @property
+    def public_numbers(self) -> DHPublicNumbers: ...
+
+class DHPublicNumbers:
+    def __init__(
+        self, y: int, parameter_numbers: DHParameterNumbers
+    ) -> None: ...
+    def public_key(self, backend: typing.Any = None) -> dh.DHPublicKey: ...
+    @property
+    def y(self) -> int: ...
+    @property
+    def parameter_numbers(self) -> DHParameterNumbers: ...
+
+class DHParameterNumbers:
+    def __init__(self, p: int, g: int, q: int | None = None) -> None: ...
+    def parameters(self, backend: typing.Any = None) -> dh.DHParameters: ...
+    @property
+    def p(self) -> int: ...
+    @property
+    def g(self) -> int: ...
+    @property
+    def q(self) -> int | None: ...
+
+def generate_parameters(
+    generator: int, key_size: int, backend: typing.Any = None
+) -> dh.DHParameters: ...
+def from_pem_parameters(
+    data: bytes, backend: typing.Any = None
+) -> dh.DHParameters: ...
+def from_der_parameters(
+    data: bytes, backend: typing.Any = None
+) -> dh.DHParameters: ...

gcloud/virtenv/lib/python3.12/site-packages/cryptography/hazmat/bindings/_rust/openssl/dsa.pyi

@@ -0,0 +1,41 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+
+import typing
+
+from cryptography.hazmat.primitives.asymmetric import dsa
+
+class DSAPrivateKey: ...
+class DSAPublicKey: ...
+class DSAParameters: ...
+
+class DSAPrivateNumbers:
+    def __init__(self, x: int, public_numbers: DSAPublicNumbers) -> None: ...
+    @property
+    def x(self) -> int: ...
+    @property
+    def public_numbers(self) -> DSAPublicNumbers: ...
+    def private_key(self, backend: typing.Any = None) -> dsa.DSAPrivateKey: ...
+
+class DSAPublicNumbers:
+    def __init__(
+        self, y: int, parameter_numbers: DSAParameterNumbers
+    ) -> None: ...
+    @property
+    def y(self) -> int: ...
+    @property
+    def parameter_numbers(self) -> DSAParameterNumbers: ...
+    def public_key(self, backend: typing.Any = None) -> dsa.DSAPublicKey: ...
+
+class DSAParameterNumbers:
+    def __init__(self, p: int, q: int, g: int) -> None: ...
+    @property
+    def p(self) -> int: ...
+    @property
+    def q(self) -> int: ...
+    @property
+    def g(self) -> int: ...
+    def parameters(self, backend: typing.Any = None) -> dsa.DSAParameters: ...
+
+def generate_parameters(key_size: int) -> dsa.DSAParameters: ...

gcloud/virtenv/lib/python3.12/site-packages/cryptography/hazmat/bindings/_rust/openssl/ec.pyi

@@ -0,0 +1,52 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+
+import typing
+
+from cryptography.hazmat.primitives.asymmetric import ec
+
+class ECPrivateKey: ...
+class ECPublicKey: ...
+
+class EllipticCurvePrivateNumbers:
+    def __init__(
+        self, private_value: int, public_numbers: EllipticCurvePublicNumbers
+    ) -> None: ...
+    def private_key(
+        self, backend: typing.Any = None
+    ) -> ec.EllipticCurvePrivateKey: ...
+    @property
+    def private_value(self) -> int: ...
+    @property
+    def public_numbers(self) -> EllipticCurvePublicNumbers: ...
+
+class EllipticCurvePublicNumbers:
+    def __init__(self, x: int, y: int, curve: ec.EllipticCurve) -> None: ...
+    def public_key(
+        self, backend: typing.Any = None
+    ) -> ec.EllipticCurvePublicKey: ...
+    @property
+    def x(self) -> int: ...
+    @property
+    def y(self) -> int: ...
+    @property
+    def curve(self) -> ec.EllipticCurve: ...
+    def __eq__(self, other: object) -> bool: ...
+
+def curve_supported(curve: ec.EllipticCurve) -> bool: ...
+def generate_private_key(
+    curve: ec.EllipticCurve, backend: typing.Any = None
+) -> ec.EllipticCurvePrivateKey: ...
+def from_private_numbers(
+    numbers: ec.EllipticCurvePrivateNumbers,
+) -> ec.EllipticCurvePrivateKey: ...
+def from_public_numbers(
+    numbers: ec.EllipticCurvePublicNumbers,
+) -> ec.EllipticCurvePublicKey: ...
+def from_public_bytes(
+    curve: ec.EllipticCurve, data: bytes
+) -> ec.EllipticCurvePublicKey: ...
+def derive_private_key(
+    private_value: int, curve: ec.EllipticCurve
+) -> ec.EllipticCurvePrivateKey: ...

gcloud/virtenv/lib/python3.12/site-packages/cryptography/hazmat/bindings/_rust/openssl/ed25519.pyi

@@ -0,0 +1,12 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+
+from cryptography.hazmat.primitives.asymmetric import ed25519
+
+class Ed25519PrivateKey: ...
+class Ed25519PublicKey: ...
+
+def generate_key() -> ed25519.Ed25519PrivateKey: ...
+def from_private_bytes(data: bytes) -> ed25519.Ed25519PrivateKey: ...
+def from_public_bytes(data: bytes) -> ed25519.Ed25519PublicKey: ...

gcloud/virtenv/lib/python3.12/site-packages/cryptography/hazmat/bindings/_rust/openssl/ed448.pyi

@@ -0,0 +1,12 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+
+from cryptography.hazmat.primitives.asymmetric import ed448
+
+class Ed448PrivateKey: ...
+class Ed448PublicKey: ...
+
+def generate_key() -> ed448.Ed448PrivateKey: ...
+def from_private_bytes(data: bytes) -> ed448.Ed448PrivateKey: ...
+def from_public_bytes(data: bytes) -> ed448.Ed448PublicKey: ...

gcloud/virtenv/lib/python3.12/site-packages/cryptography/hazmat/bindings/_rust/openssl/hashes.pyi

@@ -0,0 +1,17 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+
+import typing
+
+from cryptography.hazmat.primitives import hashes
+
+class Hash(hashes.HashContext):
+    def __init__(
+        self, algorithm: hashes.HashAlgorithm, backend: typing.Any = None
+    ) -> None: ...
+    @property
+    def algorithm(self) -> hashes.HashAlgorithm: ...
+    def update(self, data: bytes) -> None: ...
+    def finalize(self) -> bytes: ...
+    def copy(self) -> Hash: ...

gcloud/virtenv/lib/python3.12/site-packages/cryptography/hazmat/bindings/_rust/openssl/hmac.pyi

@@ -0,0 +1,21 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+
+import typing
+
+from cryptography.hazmat.primitives import hashes
+
+class HMAC(hashes.HashContext):
+    def __init__(
+        self,
+        key: bytes,
+        algorithm: hashes.HashAlgorithm,
+        backend: typing.Any = None,
+    ) -> None: ...
+    @property
+    def algorithm(self) -> hashes.HashAlgorithm: ...
+    def update(self, data: bytes) -> None: ...
+    def finalize(self) -> bytes: ...
+    def verify(self, signature: bytes) -> None: ...
+    def copy(self) -> HMAC: ...

gcloud/virtenv/lib/python3.12/site-packages/cryptography/hazmat/bindings/_rust/openssl/kdf.pyi

@@ -0,0 +1,22 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+
+from cryptography.hazmat.primitives.hashes import HashAlgorithm
+
+def derive_pbkdf2_hmac(
+    key_material: bytes,
+    algorithm: HashAlgorithm,
+    salt: bytes,
+    iterations: int,
+    length: int,
+) -> bytes: ...
+def derive_scrypt(
+    key_material: bytes,
+    salt: bytes,
+    n: int,
+    r: int,
+    p: int,
+    max_mem: int,
+    length: int,
+) -> bytes: ...

gcloud/virtenv/lib/python3.12/site-packages/cryptography/hazmat/bindings/_rust/openssl/keys.pyi

@@ -0,0 +1,37 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+
+import typing
+
+from cryptography.hazmat.primitives.asymmetric.types import (
+    PrivateKeyTypes,
+    PublicKeyTypes,
+)
+
+def private_key_from_ptr(
+    ptr: int,
+    unsafe_skip_rsa_key_validation: bool,
+) -> PrivateKeyTypes: ...
+def load_der_private_key(
+    data: bytes,
+    password: bytes | None,
+    backend: typing.Any = None,
+    *,
+    unsafe_skip_rsa_key_validation: bool = False,
+) -> PrivateKeyTypes: ...
+def load_pem_private_key(
+    data: bytes,
+    password: bytes | None,
+    backend: typing.Any = None,
+    *,
+    unsafe_skip_rsa_key_validation: bool = False,
+) -> PrivateKeyTypes: ...
+def load_der_public_key(
+    data: bytes,
+    backend: typing.Any = None,
+) -> PublicKeyTypes: ...
+def load_pem_public_key(
+    data: bytes,
+    backend: typing.Any = None,
+) -> PublicKeyTypes: ...

gcloud/virtenv/lib/python3.12/site-packages/cryptography/hazmat/bindings/_rust/openssl/poly1305.pyi

@@ -0,0 +1,13 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+
+class Poly1305:
+    def __init__(self, key: bytes) -> None: ...
+    @staticmethod
+    def generate_tag(key: bytes, data: bytes) -> bytes: ...
+    @staticmethod
+    def verify_tag(key: bytes, data: bytes, tag: bytes) -> None: ...
+    def update(self, data: bytes) -> None: ...
+    def finalize(self) -> bytes: ...
+    def verify(self, tag: bytes) -> None: ...

gcloud/virtenv/lib/python3.12/site-packages/cryptography/hazmat/bindings/_rust/openssl/rsa.pyi

@@ -0,0 +1,55 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+
+import typing
+
+from cryptography.hazmat.primitives.asymmetric import rsa
+
+class RSAPrivateKey: ...
+class RSAPublicKey: ...
+
+class RSAPrivateNumbers:
+    def __init__(
+        self,
+        p: int,
+        q: int,
+        d: int,
+        dmp1: int,
+        dmq1: int,
+        iqmp: int,
+        public_numbers: RSAPublicNumbers,
+    ) -> None: ...
+    @property
+    def p(self) -> int: ...
+    @property
+    def q(self) -> int: ...
+    @property
+    def d(self) -> int: ...
+    @property
+    def dmp1(self) -> int: ...
+    @property
+    def dmq1(self) -> int: ...
+    @property
+    def iqmp(self) -> int: ...
+    @property
+    def public_numbers(self) -> RSAPublicNumbers: ...
+    def private_key(
+        self,
+        backend: typing.Any = None,
+        *,
+        unsafe_skip_rsa_key_validation: bool = False,
+    ) -> rsa.RSAPrivateKey: ...
+
+class RSAPublicNumbers:
+    def __init__(self, e: int, n: int) -> None: ...
+    @property
+    def n(self) -> int: ...
+    @property
+    def e(self) -> int: ...
+    def public_key(self, backend: typing.Any = None) -> rsa.RSAPublicKey: ...
+
+def generate_private_key(
+    public_exponent: int,
+    key_size: int,
+) -> rsa.RSAPrivateKey: ...

gcloud/virtenv/lib/python3.12/site-packages/cryptography/hazmat/bindings/_rust/openssl/x25519.pyi

@@ -0,0 +1,12 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+
+from cryptography.hazmat.primitives.asymmetric import x25519
+
+class X25519PrivateKey: ...
+class X25519PublicKey: ...
+
+def generate_key() -> x25519.X25519PrivateKey: ...
+def from_private_bytes(data: bytes) -> x25519.X25519PrivateKey: ...
+def from_public_bytes(data: bytes) -> x25519.X25519PublicKey: ...

gcloud/virtenv/lib/python3.12/site-packages/cryptography/hazmat/bindings/_rust/openssl/x448.pyi

@@ -0,0 +1,12 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+
+from cryptography.hazmat.primitives.asymmetric import x448
+
+class X448PrivateKey: ...
+class X448PublicKey: ...
+
+def generate_key() -> x448.X448PrivateKey: ...
+def from_private_bytes(data: bytes) -> x448.X448PrivateKey: ...
+def from_public_bytes(data: bytes) -> x448.X448PublicKey: ...

gcloud/virtenv/lib/python3.12/site-packages/cryptography/hazmat/bindings/_rust/pkcs7.pyi

@@ -0,0 +1,21 @@
+import typing
+
+from cryptography import x509
+from cryptography.hazmat.primitives import serialization
+from cryptography.hazmat.primitives.serialization import pkcs7
+
+def serialize_certificates(
+    certs: list[x509.Certificate],
+    encoding: serialization.Encoding,
+) -> bytes: ...
+def sign_and_serialize(
+    builder: pkcs7.PKCS7SignatureBuilder,
+    encoding: serialization.Encoding,
+    options: typing.Iterable[pkcs7.PKCS7Options],
+) -> bytes: ...
+def load_pem_pkcs7_certificates(
+    data: bytes,
+) -> list[x509.Certificate]: ...
+def load_der_pkcs7_certificates(
+    data: bytes,
+) -> list[x509.Certificate]: ...

gcloud/virtenv/lib/python3.12/site-packages/cryptography/hazmat/bindings/_rust/x509.pyi

@@ -0,0 +1,88 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+
+import datetime
+import typing
+
+from cryptography import x509
+from cryptography.hazmat.primitives import hashes
+from cryptography.hazmat.primitives.asymmetric.padding import PSS, PKCS1v15
+from cryptography.hazmat.primitives.asymmetric.types import PrivateKeyTypes
+
+def load_pem_x509_certificate(
+    data: bytes, backend: typing.Any = None
+) -> x509.Certificate: ...
+def load_der_x509_certificate(
+    data: bytes, backend: typing.Any = None
+) -> x509.Certificate: ...
+def load_pem_x509_certificates(
+    data: bytes,
+) -> list[x509.Certificate]: ...
+def load_pem_x509_crl(
+    data: bytes, backend: typing.Any = None
+) -> x509.CertificateRevocationList: ...
+def load_der_x509_crl(
+    data: bytes, backend: typing.Any = None
+) -> x509.CertificateRevocationList: ...
+def load_pem_x509_csr(
+    data: bytes, backend: typing.Any = None
+) -> x509.CertificateSigningRequest: ...
+def load_der_x509_csr(
+    data: bytes, backend: typing.Any = None
+) -> x509.CertificateSigningRequest: ...
+def encode_name_bytes(name: x509.Name) -> bytes: ...
+def encode_extension_value(extension: x509.ExtensionType) -> bytes: ...
+def create_x509_certificate(
+    builder: x509.CertificateBuilder,
+    private_key: PrivateKeyTypes,
+    hash_algorithm: hashes.HashAlgorithm | None,
+    rsa_padding: PKCS1v15 | PSS | None,
+) -> x509.Certificate: ...
+def create_x509_csr(
+    builder: x509.CertificateSigningRequestBuilder,
+    private_key: PrivateKeyTypes,
+    hash_algorithm: hashes.HashAlgorithm | None,
+    rsa_padding: PKCS1v15 | PSS | None,
+) -> x509.CertificateSigningRequest: ...
+def create_x509_crl(
+    builder: x509.CertificateRevocationListBuilder,
+    private_key: PrivateKeyTypes,
+    hash_algorithm: hashes.HashAlgorithm | None,
+    rsa_padding: PKCS1v15 | PSS | None,
+) -> x509.CertificateRevocationList: ...
+
+class Sct: ...
+class Certificate: ...
+class RevokedCertificate: ...
+class CertificateRevocationList: ...
+class CertificateSigningRequest: ...
+
+class PolicyBuilder:
+    def time(self, new_time: datetime.datetime) -> PolicyBuilder: ...
+    def store(self, new_store: Store) -> PolicyBuilder: ...
+    def max_chain_depth(self, new_max_chain_depth: int) -> PolicyBuilder: ...
+    def build_server_verifier(
+        self, subject: x509.verification.Subject
+    ) -> ServerVerifier: ...
+
+class ServerVerifier:
+    @property
+    def subject(self) -> x509.verification.Subject: ...
+    @property
+    def validation_time(self) -> datetime.datetime: ...
+    @property
+    def store(self) -> Store: ...
+    @property
+    def max_chain_depth(self) -> int: ...
+    def verify(
+        self,
+        leaf: x509.Certificate,
+        intermediates: list[x509.Certificate],
+    ) -> list[x509.Certificate]: ...
+
+class Store:
+    def __init__(self, certs: list[x509.Certificate]) -> None: ...
+
+class VerificationError(Exception):
+    pass

gcloud/virtenv/lib/python3.12/site-packages/cryptography/hazmat/bindings/openssl/__init__.py

@@ -0,0 +1,3 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.

gcloud/virtenv/lib/python3.12/site-packages/cryptography/hazmat/bindings/openssl/_conditional.py

@@ -0,0 +1,226 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+
+from __future__ import annotations
+
+
+def cryptography_has_set_cert_cb() -> list[str]:
+    return [
+        "SSL_CTX_set_cert_cb",
+        "SSL_set_cert_cb",
+    ]
+
+
+def cryptography_has_ssl_st() -> list[str]:
+    return [
+        "SSL_ST_BEFORE",
+        "SSL_ST_OK",
+        "SSL_ST_INIT",
+        "SSL_ST_RENEGOTIATE",
+    ]
+
+
+def cryptography_has_tls_st() -> list[str]:
+    return [
+        "TLS_ST_BEFORE",
+        "TLS_ST_OK",
+    ]
+
+
+def cryptography_has_ed448() -> list[str]:
+    return [
+        "EVP_PKEY_ED448",
+    ]
+
+
+def cryptography_has_ssl_sigalgs() -> list[str]:
+    return [
+        "SSL_CTX_set1_sigalgs_list",
+    ]
+
+
+def cryptography_has_psk() -> list[str]:
+    return [
+        "SSL_CTX_use_psk_identity_hint",
+        "SSL_CTX_set_psk_server_callback",
+        "SSL_CTX_set_psk_client_callback",
+    ]
+
+
+def cryptography_has_psk_tlsv13() -> list[str]:
+    return [
+        "SSL_CTX_set_psk_find_session_callback",
+        "SSL_CTX_set_psk_use_session_callback",
+        "Cryptography_SSL_SESSION_new",
+        "SSL_CIPHER_find",
+        "SSL_SESSION_set1_master_key",
+        "SSL_SESSION_set_cipher",
+        "SSL_SESSION_set_protocol_version",
+    ]
+
+
+def cryptography_has_custom_ext() -> list[str]:
+    return [
+        "SSL_CTX_add_client_custom_ext",
+        "SSL_CTX_add_server_custom_ext",
+        "SSL_extension_supported",
+    ]
+
+
+def cryptography_has_tlsv13_functions() -> list[str]:
+    return [
+        "SSL_VERIFY_POST_HANDSHAKE",
+        "SSL_CTX_set_ciphersuites",
+        "SSL_verify_client_post_handshake",
+        "SSL_CTX_set_post_handshake_auth",
+        "SSL_set_post_handshake_auth",
+        "SSL_SESSION_get_max_early_data",
+        "SSL_write_early_data",
+        "SSL_read_early_data",
+        "SSL_CTX_set_max_early_data",
+    ]
+
+
+def cryptography_has_engine() -> list[str]:
+    return [
+        "ENGINE_by_id",
+        "ENGINE_init",
+        "ENGINE_finish",
+        "ENGINE_get_default_RAND",
+        "ENGINE_set_default_RAND",
+        "ENGINE_unregister_RAND",
+        "ENGINE_ctrl_cmd",
+        "ENGINE_free",
+        "ENGINE_get_name",
+        "ENGINE_ctrl_cmd_string",
+        "ENGINE_load_builtin_engines",
+        "ENGINE_load_private_key",
+        "ENGINE_load_public_key",
+        "SSL_CTX_set_client_cert_engine",
+    ]
+
+
+def cryptography_has_verified_chain() -> list[str]:
+    return [
+        "SSL_get0_verified_chain",
+    ]
+
+
+def cryptography_has_srtp() -> list[str]:
+    return [
+        "SSL_CTX_set_tlsext_use_srtp",
+        "SSL_set_tlsext_use_srtp",
+        "SSL_get_selected_srtp_profile",
+    ]
+
+
+def cryptography_has_providers() -> list[str]:
+    return [
+        "OSSL_PROVIDER_load",
+        "OSSL_PROVIDER_unload",
+        "ERR_LIB_PROV",
+        "PROV_R_WRONG_FINAL_BLOCK_LENGTH",
+        "PROV_R_BAD_DECRYPT",
+    ]
+
+
+def cryptography_has_op_no_renegotiation() -> list[str]:
+    return [
+        "SSL_OP_NO_RENEGOTIATION",
+    ]
+
+
+def cryptography_has_dtls_get_data_mtu() -> list[str]:
+    return [
+        "DTLS_get_data_mtu",
+    ]
+
+
+def cryptography_has_300_fips() -> list[str]:
+    return [
+        "EVP_default_properties_enable_fips",
+    ]
+
+
+def cryptography_has_ssl_cookie() -> list[str]:
+    return [
+        "SSL_OP_COOKIE_EXCHANGE",
+        "DTLSv1_listen",
+        "SSL_CTX_set_cookie_generate_cb",
+        "SSL_CTX_set_cookie_verify_cb",
+    ]
+
+
+def cryptography_has_pkcs7_funcs() -> list[str]:
+    return [
+        "PKCS7_verify",
+        "SMIME_read_PKCS7",
+    ]
+
+
+def cryptography_has_prime_checks() -> list[str]:
+    return [
+        "BN_prime_checks_for_size",
+    ]
+
+
+def cryptography_has_300_evp_cipher() -> list[str]:
+    return ["EVP_CIPHER_fetch", "EVP_CIPHER_free"]
+
+
+def cryptography_has_unexpected_eof_while_reading() -> list[str]:
+    return ["SSL_R_UNEXPECTED_EOF_WHILE_READING"]
+
+
+def cryptography_has_pkcs12_set_mac() -> list[str]:
+    return ["PKCS12_set_mac"]
+
+
+def cryptography_has_ssl_op_ignore_unexpected_eof() -> list[str]:
+    return [
+        "SSL_OP_IGNORE_UNEXPECTED_EOF",
+    ]
+
+
+def cryptography_has_get_extms_support() -> list[str]:
+    return ["SSL_get_extms_support"]
+
+
+# This is a mapping of
+# {condition: function-returning-names-dependent-on-that-condition} so we can
+# loop over them and delete unsupported names at runtime. It will be removed
+# when cffi supports #if in cdef. We use functions instead of just a dict of
+# lists so we can use coverage to measure which are used.
+CONDITIONAL_NAMES = {
+    "Cryptography_HAS_SET_CERT_CB": cryptography_has_set_cert_cb,
+    "Cryptography_HAS_SSL_ST": cryptography_has_ssl_st,
+    "Cryptography_HAS_TLS_ST": cryptography_has_tls_st,
+    "Cryptography_HAS_ED448": cryptography_has_ed448,
+    "Cryptography_HAS_SIGALGS": cryptography_has_ssl_sigalgs,
+    "Cryptography_HAS_PSK": cryptography_has_psk,
+    "Cryptography_HAS_PSK_TLSv1_3": cryptography_has_psk_tlsv13,
+    "Cryptography_HAS_CUSTOM_EXT": cryptography_has_custom_ext,
+    "Cryptography_HAS_TLSv1_3_FUNCTIONS": cryptography_has_tlsv13_functions,
+    "Cryptography_HAS_ENGINE": cryptography_has_engine,
+    "Cryptography_HAS_VERIFIED_CHAIN": cryptography_has_verified_chain,
+    "Cryptography_HAS_SRTP": cryptography_has_srtp,
+    "Cryptography_HAS_PROVIDERS": cryptography_has_providers,
+    "Cryptography_HAS_OP_NO_RENEGOTIATION": (
+        cryptography_has_op_no_renegotiation
+    ),
+    "Cryptography_HAS_DTLS_GET_DATA_MTU": cryptography_has_dtls_get_data_mtu,
+    "Cryptography_HAS_300_FIPS": cryptography_has_300_fips,
+    "Cryptography_HAS_SSL_COOKIE": cryptography_has_ssl_cookie,
+    "Cryptography_HAS_PKCS7_FUNCS": cryptography_has_pkcs7_funcs,
+    "Cryptography_HAS_PRIME_CHECKS": cryptography_has_prime_checks,
+    "Cryptography_HAS_300_EVP_CIPHER": cryptography_has_300_evp_cipher,
+    "Cryptography_HAS_UNEXPECTED_EOF_WHILE_READING": (
+        cryptography_has_unexpected_eof_while_reading
+    ),
+    "Cryptography_HAS_PKCS12_SET_MAC": cryptography_has_pkcs12_set_mac,
+    "Cryptography_HAS_SSL_OP_IGNORE_UNEXPECTED_EOF": (
+        cryptography_has_ssl_op_ignore_unexpected_eof
+    ),
+    "Cryptography_HAS_GET_EXTMS_SUPPORT": cryptography_has_get_extms_support,
+}

gcloud/virtenv/lib/python3.12/site-packages/cryptography/hazmat/bindings/openssl/binding.py

@@ -0,0 +1,144 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+
+from __future__ import annotations
+
+import os
+import sys
+import threading
+import types
+import typing
+import warnings
+
+import cryptography
+from cryptography.exceptions import InternalError
+from cryptography.hazmat.bindings._rust import _openssl, openssl
+from cryptography.hazmat.bindings.openssl._conditional import CONDITIONAL_NAMES
+
+
+def _openssl_assert(
+    ok: bool,
+    errors: list[openssl.OpenSSLError] | None = None,
+) -> None:
+    if not ok:
+        if errors is None:
+            errors = openssl.capture_error_stack()
+
+        raise InternalError(
+            "Unknown OpenSSL error. This error is commonly encountered when "
+            "another library is not cleaning up the OpenSSL error stack. If "
+            "you are using cryptography with another library that uses "
+            "OpenSSL try disabling it before reporting a bug. Otherwise "
+            "please file an issue at https://github.com/pyca/cryptography/"
+            "issues with information on how to reproduce "
+            f"this. ({errors!r})",
+            errors,
+        )
+
+
+def build_conditional_library(
+    lib: typing.Any,
+    conditional_names: dict[str, typing.Callable[[], list[str]]],
+) -> typing.Any:
+    conditional_lib = types.ModuleType("lib")
+    conditional_lib._original_lib = lib  # type: ignore[attr-defined]
+    excluded_names = set()
+    for condition, names_cb in conditional_names.items():
+        if not getattr(lib, condition):
+            excluded_names.update(names_cb())
+
+    for attr in dir(lib):
+        if attr not in excluded_names:
+            setattr(conditional_lib, attr, getattr(lib, attr))
+
+    return conditional_lib
+
+
+class Binding:
+    """
+    OpenSSL API wrapper.
+    """
+
+    lib: typing.ClassVar = None
+    ffi = _openssl.ffi
+    _lib_loaded = False
+    _init_lock = threading.Lock()
+    _legacy_provider: typing.Any = ffi.NULL
+    _default_provider: typing.Any = ffi.NULL
+
+    def __init__(self) -> None:
+        self._ensure_ffi_initialized()
+
+    def _enable_fips(self) -> None:
+        # This function enables FIPS mode for OpenSSL 3.0.0 on installs that
+        # have the FIPS provider installed properly.
+        _openssl_assert(self.lib.CRYPTOGRAPHY_OPENSSL_300_OR_GREATER)
+        self._base_provider = self.lib.OSSL_PROVIDER_load(
+            self.ffi.NULL, b"base"
+        )
+        _openssl_assert(self._base_provider != self.ffi.NULL)
+        self.lib._fips_provider = self.lib.OSSL_PROVIDER_load(
+            self.ffi.NULL, b"fips"
+        )
+        _openssl_assert(self.lib._fips_provider != self.ffi.NULL)
+
+        res = self.lib.EVP_default_properties_enable_fips(self.ffi.NULL, 1)
+        _openssl_assert(res == 1)
+
+    @classmethod
+    def _ensure_ffi_initialized(cls) -> None:
+        with cls._init_lock:
+            if not cls._lib_loaded:
+                cls.lib = build_conditional_library(
+                    _openssl.lib, CONDITIONAL_NAMES
+                )
+                cls._lib_loaded = True
+
+    @classmethod
+    def init_static_locks(cls) -> None:
+        cls._ensure_ffi_initialized()
+
+
+def _verify_package_version(version: str) -> None:
+    # Occasionally we run into situations where the version of the Python
+    # package does not match the version of the shared object that is loaded.
+    # This may occur in environments where multiple versions of cryptography
+    # are installed and available in the python path. To avoid errors cropping
+    # up later this code checks that the currently imported package and the
+    # shared object that were loaded have the same version and raise an
+    # ImportError if they do not
+    so_package_version = _openssl.ffi.string(
+        _openssl.lib.CRYPTOGRAPHY_PACKAGE_VERSION
+    )
+    if version.encode("ascii") != so_package_version:
+        raise ImportError(
+            "The version of cryptography does not match the loaded "
+            "shared object. This can happen if you have multiple copies of "
+            "cryptography installed in your Python path. Please try creating "
+            "a new virtual environment to resolve this issue. "
+            "Loaded python version: {}, shared object version: {}".format(
+                version, so_package_version
+            )
+        )
+
+    _openssl_assert(
+        _openssl.lib.OpenSSL_version_num() == openssl.openssl_version(),
+    )
+
+
+_verify_package_version(cryptography.__version__)
+
+Binding.init_static_locks()
+
+if (
+    sys.platform == "win32"
+    and os.environ.get("PROCESSOR_ARCHITEW6432") is not None
+):
+    warnings.warn(
+        "You are using cryptography on a 32-bit Python on a 64-bit Windows "
+        "Operating System. Cryptography will be significantly faster if you "
+        "switch to using a 64-bit Python.",
+        UserWarning,
+        stacklevel=2,
+    )

gcloud/virtenv/lib/python3.12/site-packages/cryptography/hazmat/primitives/__init__.py

@@ -0,0 +1,3 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.

gcloud/virtenv/lib/python3.12/site-packages/cryptography/hazmat/primitives/_asymmetric.py

@@ -0,0 +1,19 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+
+from __future__ import annotations
+
+import abc
+
+# This exists to break an import cycle. It is normally accessible from the
+# asymmetric padding module.
+
+
+class AsymmetricPadding(metaclass=abc.ABCMeta):
+    @property
+    @abc.abstractmethod
+    def name(self) -> str:
+        """
+        A string naming this padding (e.g. "PSS", "PKCS1").
+        """

gcloud/virtenv/lib/python3.12/site-packages/cryptography/hazmat/primitives/_cipheralgorithm.py

@@ -0,0 +1,44 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+
+from __future__ import annotations
+
+import abc
+
+# This exists to break an import cycle. It is normally accessible from the
+# ciphers module.
+
+
+class CipherAlgorithm(metaclass=abc.ABCMeta):
+    @property
+    @abc.abstractmethod
+    def name(self) -> str:
+        """
+        A string naming this mode (e.g. "AES", "Camellia").
+        """
+
+    @property
+    @abc.abstractmethod
+    def key_sizes(self) -> frozenset[int]:
+        """
+        Valid key sizes for this algorithm in bits
+        """
+
+    @property
+    @abc.abstractmethod
+    def key_size(self) -> int:
+        """
+        The size of the key being used as an integer in bits (e.g. 128, 256).
+        """
+
+
+class BlockCipherAlgorithm(CipherAlgorithm):
+    key: bytes
+
+    @property
+    @abc.abstractmethod
+    def block_size(self) -> int:
+        """
+        The size of a block as an integer in bits (e.g. 64, 128).
+        """

gcloud/virtenv/lib/python3.12/site-packages/cryptography/hazmat/primitives/_serialization.py

@@ -0,0 +1,169 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+
+from __future__ import annotations
+
+import abc
+
+from cryptography import utils
+from cryptography.hazmat.primitives.hashes import HashAlgorithm
+
+# This exists to break an import cycle. These classes are normally accessible
+# from the serialization module.
+
+
+class PBES(utils.Enum):
+    PBESv1SHA1And3KeyTripleDESCBC = "PBESv1 using SHA1 and 3-Key TripleDES"
+    PBESv2SHA256AndAES256CBC = "PBESv2 using SHA256 PBKDF2 and AES256 CBC"
+
+
+class Encoding(utils.Enum):
+    PEM = "PEM"
+    DER = "DER"
+    OpenSSH = "OpenSSH"
+    Raw = "Raw"
+    X962 = "ANSI X9.62"
+    SMIME = "S/MIME"
+
+
+class PrivateFormat(utils.Enum):
+    PKCS8 = "PKCS8"
+    TraditionalOpenSSL = "TraditionalOpenSSL"
+    Raw = "Raw"
+    OpenSSH = "OpenSSH"
+    PKCS12 = "PKCS12"
+
+    def encryption_builder(self) -> KeySerializationEncryptionBuilder:
+        if self not in (PrivateFormat.OpenSSH, PrivateFormat.PKCS12):
+            raise ValueError(
+                "encryption_builder only supported with PrivateFormat.OpenSSH"
+                " and PrivateFormat.PKCS12"
+            )
+        return KeySerializationEncryptionBuilder(self)
+
+
+class PublicFormat(utils.Enum):
+    SubjectPublicKeyInfo = "X.509 subjectPublicKeyInfo with PKCS#1"
+    PKCS1 = "Raw PKCS#1"
+    OpenSSH = "OpenSSH"
+    Raw = "Raw"
+    CompressedPoint = "X9.62 Compressed Point"
+    UncompressedPoint = "X9.62 Uncompressed Point"
+
+
+class ParameterFormat(utils.Enum):
+    PKCS3 = "PKCS3"
+
+
+class KeySerializationEncryption(metaclass=abc.ABCMeta):
+    pass
+
+
+class BestAvailableEncryption(KeySerializationEncryption):
+    def __init__(self, password: bytes):
+        if not isinstance(password, bytes) or len(password) == 0:
+            raise ValueError("Password must be 1 or more bytes.")
+
+        self.password = password
+
+
+class NoEncryption(KeySerializationEncryption):
+    pass
+
+
+class KeySerializationEncryptionBuilder:
+    def __init__(
+        self,
+        format: PrivateFormat,
+        *,
+        _kdf_rounds: int | None = None,
+        _hmac_hash: HashAlgorithm | None = None,
+        _key_cert_algorithm: PBES | None = None,
+    ) -> None:
+        self._format = format
+
+        self._kdf_rounds = _kdf_rounds
+        self._hmac_hash = _hmac_hash
+        self._key_cert_algorithm = _key_cert_algorithm
+
+    def kdf_rounds(self, rounds: int) -> KeySerializationEncryptionBuilder:
+        if self._kdf_rounds is not None:
+            raise ValueError("kdf_rounds already set")
+
+        if not isinstance(rounds, int):
+            raise TypeError("kdf_rounds must be an integer")
+
+        if rounds < 1:
+            raise ValueError("kdf_rounds must be a positive integer")
+
+        return KeySerializationEncryptionBuilder(
+            self._format,
+            _kdf_rounds=rounds,
+            _hmac_hash=self._hmac_hash,
+            _key_cert_algorithm=self._key_cert_algorithm,
+        )
+
+    def hmac_hash(
+        self, algorithm: HashAlgorithm
+    ) -> KeySerializationEncryptionBuilder:
+        if self._format is not PrivateFormat.PKCS12:
+            raise TypeError(
+                "hmac_hash only supported with PrivateFormat.PKCS12"
+            )
+
+        if self._hmac_hash is not None:
+            raise ValueError("hmac_hash already set")
+        return KeySerializationEncryptionBuilder(
+            self._format,
+            _kdf_rounds=self._kdf_rounds,
+            _hmac_hash=algorithm,
+            _key_cert_algorithm=self._key_cert_algorithm,
+        )
+
+    def key_cert_algorithm(
+        self, algorithm: PBES
+    ) -> KeySerializationEncryptionBuilder:
+        if self._format is not PrivateFormat.PKCS12:
+            raise TypeError(
+                "key_cert_algorithm only supported with "
+                "PrivateFormat.PKCS12"
+            )
+        if self._key_cert_algorithm is not None:
+            raise ValueError("key_cert_algorithm already set")
+        return KeySerializationEncryptionBuilder(
+            self._format,
+            _kdf_rounds=self._kdf_rounds,
+            _hmac_hash=self._hmac_hash,
+            _key_cert_algorithm=algorithm,
+        )
+
+    def build(self, password: bytes) -> KeySerializationEncryption:
+        if not isinstance(password, bytes) or len(password) == 0:
+            raise ValueError("Password must be 1 or more bytes.")
+
+        return _KeySerializationEncryption(
+            self._format,
+            password,
+            kdf_rounds=self._kdf_rounds,
+            hmac_hash=self._hmac_hash,
+            key_cert_algorithm=self._key_cert_algorithm,
+        )
+
+
+class _KeySerializationEncryption(KeySerializationEncryption):
+    def __init__(
+        self,
+        format: PrivateFormat,
+        password: bytes,
+        *,
+        kdf_rounds: int | None,
+        hmac_hash: HashAlgorithm | None,
+        key_cert_algorithm: PBES | None,
+    ):
+        self._format = format
+        self.password = password
+
+        self._kdf_rounds = kdf_rounds
+        self._hmac_hash = hmac_hash
+        self._key_cert_algorithm = key_cert_algorithm

gcloud/virtenv/lib/python3.12/site-packages/cryptography/hazmat/primitives/asymmetric/__init__.py

@@ -0,0 +1,3 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.

gcloud/virtenv/lib/python3.12/site-packages/cryptography/hazmat/primitives/asymmetric/dh.py

@@ -0,0 +1,135 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+
+from __future__ import annotations
+
+import abc
+
+from cryptography.hazmat.bindings._rust import openssl as rust_openssl
+from cryptography.hazmat.primitives import _serialization
+
+generate_parameters = rust_openssl.dh.generate_parameters
+
+
+DHPrivateNumbers = rust_openssl.dh.DHPrivateNumbers
+DHPublicNumbers = rust_openssl.dh.DHPublicNumbers
+DHParameterNumbers = rust_openssl.dh.DHParameterNumbers
+
+
+class DHParameters(metaclass=abc.ABCMeta):
+    @abc.abstractmethod
+    def generate_private_key(self) -> DHPrivateKey:
+        """
+        Generates and returns a DHPrivateKey.
+        """
+
+    @abc.abstractmethod
+    def parameter_bytes(
+        self,
+        encoding: _serialization.Encoding,
+        format: _serialization.ParameterFormat,
+    ) -> bytes:
+        """
+        Returns the parameters serialized as bytes.
+        """
+
+    @abc.abstractmethod
+    def parameter_numbers(self) -> DHParameterNumbers:
+        """
+        Returns a DHParameterNumbers.
+        """
+
+
+DHParametersWithSerialization = DHParameters
+DHParameters.register(rust_openssl.dh.DHParameters)
+
+
+class DHPublicKey(metaclass=abc.ABCMeta):
+    @property
+    @abc.abstractmethod
+    def key_size(self) -> int:
+        """
+        The bit length of the prime modulus.
+        """
+
+    @abc.abstractmethod
+    def parameters(self) -> DHParameters:
+        """
+        The DHParameters object associated with this public key.
+        """
+
+    @abc.abstractmethod
+    def public_numbers(self) -> DHPublicNumbers:
+        """
+        Returns a DHPublicNumbers.
+        """
+
+    @abc.abstractmethod
+    def public_bytes(
+        self,
+        encoding: _serialization.Encoding,
+        format: _serialization.PublicFormat,
+    ) -> bytes:
+        """
+        Returns the key serialized as bytes.
+        """
+
+    @abc.abstractmethod
+    def __eq__(self, other: object) -> bool:
+        """
+        Checks equality.
+        """
+
+
+DHPublicKeyWithSerialization = DHPublicKey
+DHPublicKey.register(rust_openssl.dh.DHPublicKey)
+
+
+class DHPrivateKey(metaclass=abc.ABCMeta):
+    @property
+    @abc.abstractmethod
+    def key_size(self) -> int:
+        """
+        The bit length of the prime modulus.
+        """
+
+    @abc.abstractmethod
+    def public_key(self) -> DHPublicKey:
+        """
+        The DHPublicKey associated with this private key.
+        """
+
+    @abc.abstractmethod
+    def parameters(self) -> DHParameters:
+        """
+        The DHParameters object associated with this private key.
+        """
+
+    @abc.abstractmethod
+    def exchange(self, peer_public_key: DHPublicKey) -> bytes:
+        """
+        Given peer's DHPublicKey, carry out the key exchange and
+        return shared key as bytes.
+        """
+
+    @abc.abstractmethod
+    def private_numbers(self) -> DHPrivateNumbers:
+        """
+        Returns a DHPrivateNumbers.
+        """
+
+    @abc.abstractmethod
+    def private_bytes(
+        self,
+        encoding: _serialization.Encoding,
+        format: _serialization.PrivateFormat,
+        encryption_algorithm: _serialization.KeySerializationEncryption,
+    ) -> bytes:
+        """
+        Returns the key serialized as bytes.
+        """
+
+
+DHPrivateKeyWithSerialization = DHPrivateKey
+DHPrivateKey.register(rust_openssl.dh.DHPrivateKey)

gcloud/virtenv/lib/python3.12/site-packages/cryptography/hazmat/primitives/asymmetric/dsa.py

@@ -0,0 +1,154 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+
+from __future__ import annotations
+
+import abc
+import typing
+
+from cryptography.hazmat.bindings._rust import openssl as rust_openssl
+from cryptography.hazmat.primitives import _serialization, hashes
+from cryptography.hazmat.primitives.asymmetric import utils as asym_utils
+
+
+class DSAParameters(metaclass=abc.ABCMeta):
+    @abc.abstractmethod
+    def generate_private_key(self) -> DSAPrivateKey:
+        """
+        Generates and returns a DSAPrivateKey.
+        """
+
+    @abc.abstractmethod
+    def parameter_numbers(self) -> DSAParameterNumbers:
+        """
+        Returns a DSAParameterNumbers.
+        """
+
+
+DSAParametersWithNumbers = DSAParameters
+DSAParameters.register(rust_openssl.dsa.DSAParameters)
+
+
+class DSAPrivateKey(metaclass=abc.ABCMeta):
+    @property
+    @abc.abstractmethod
+    def key_size(self) -> int:
+        """
+        The bit length of the prime modulus.
+        """
+
+    @abc.abstractmethod
+    def public_key(self) -> DSAPublicKey:
+        """
+        The DSAPublicKey associated with this private key.
+        """
+
+    @abc.abstractmethod
+    def parameters(self) -> DSAParameters:
+        """
+        The DSAParameters object associated with this private key.
+        """
+
+    @abc.abstractmethod
+    def sign(
+        self,
+        data: bytes,
+        algorithm: asym_utils.Prehashed | hashes.HashAlgorithm,
+    ) -> bytes:
+        """
+        Signs the data
+        """
+
+    @abc.abstractmethod
+    def private_numbers(self) -> DSAPrivateNumbers:
+        """
+        Returns a DSAPrivateNumbers.
+        """
+
+    @abc.abstractmethod
+    def private_bytes(
+        self,
+        encoding: _serialization.Encoding,
+        format: _serialization.PrivateFormat,
+        encryption_algorithm: _serialization.KeySerializationEncryption,
+    ) -> bytes:
+        """
+        Returns the key serialized as bytes.
+        """
+
+
+DSAPrivateKeyWithSerialization = DSAPrivateKey
+DSAPrivateKey.register(rust_openssl.dsa.DSAPrivateKey)
+
+
+class DSAPublicKey(metaclass=abc.ABCMeta):
+    @property
+    @abc.abstractmethod
+    def key_size(self) -> int:
+        """
+        The bit length of the prime modulus.
+        """
+
+    @abc.abstractmethod
+    def parameters(self) -> DSAParameters:
+        """
+        The DSAParameters object associated with this public key.
+        """
+
+    @abc.abstractmethod
+    def public_numbers(self) -> DSAPublicNumbers:
+        """
+        Returns a DSAPublicNumbers.
+        """
+
+    @abc.abstractmethod
+    def public_bytes(
+        self,
+        encoding: _serialization.Encoding,
+        format: _serialization.PublicFormat,
+    ) -> bytes:
+        """
+        Returns the key serialized as bytes.
+        """
+
+    @abc.abstractmethod
+    def verify(
+        self,
+        signature: bytes,
+        data: bytes,
+        algorithm: asym_utils.Prehashed | hashes.HashAlgorithm,
+    ) -> None:
+        """
+        Verifies the signature of the data.
+        """
+
+    @abc.abstractmethod
+    def __eq__(self, other: object) -> bool:
+        """
+        Checks equality.
+        """
+
+
+DSAPublicKeyWithSerialization = DSAPublicKey
+DSAPublicKey.register(rust_openssl.dsa.DSAPublicKey)
+
+DSAPrivateNumbers = rust_openssl.dsa.DSAPrivateNumbers
+DSAPublicNumbers = rust_openssl.dsa.DSAPublicNumbers
+DSAParameterNumbers = rust_openssl.dsa.DSAParameterNumbers
+
+
+def generate_parameters(
+    key_size: int, backend: typing.Any = None
+) -> DSAParameters:
+    if key_size not in (1024, 2048, 3072, 4096):
+        raise ValueError("Key size must be 1024, 2048, 3072, or 4096 bits.")
+
+    return rust_openssl.dsa.generate_parameters(key_size)
+
+
+def generate_private_key(
+    key_size: int, backend: typing.Any = None
+) -> DSAPrivateKey:
+    parameters = generate_parameters(key_size)
+    return parameters.generate_private_key()

gcloud/virtenv/lib/python3.12/site-packages/cryptography/hazmat/primitives/asymmetric/ec.py

@@ -0,0 +1,383 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+
+from __future__ import annotations
+
+import abc
+import typing
+
+from cryptography import utils
+from cryptography.hazmat._oid import ObjectIdentifier
+from cryptography.hazmat.bindings._rust import openssl as rust_openssl
+from cryptography.hazmat.primitives import _serialization, hashes
+from cryptography.hazmat.primitives.asymmetric import utils as asym_utils
+
+
+class EllipticCurveOID:
+    SECP192R1 = ObjectIdentifier("1.2.840.10045.3.1.1")
+    SECP224R1 = ObjectIdentifier("1.3.132.0.33")
+    SECP256K1 = ObjectIdentifier("1.3.132.0.10")
+    SECP256R1 = ObjectIdentifier("1.2.840.10045.3.1.7")
+    SECP384R1 = ObjectIdentifier("1.3.132.0.34")
+    SECP521R1 = ObjectIdentifier("1.3.132.0.35")
+    BRAINPOOLP256R1 = ObjectIdentifier("1.3.36.3.3.2.8.1.1.7")
+    BRAINPOOLP384R1 = ObjectIdentifier("1.3.36.3.3.2.8.1.1.11")
+    BRAINPOOLP512R1 = ObjectIdentifier("1.3.36.3.3.2.8.1.1.13")
+    SECT163K1 = ObjectIdentifier("1.3.132.0.1")
+    SECT163R2 = ObjectIdentifier("1.3.132.0.15")
+    SECT233K1 = ObjectIdentifier("1.3.132.0.26")
+    SECT233R1 = ObjectIdentifier("1.3.132.0.27")
+    SECT283K1 = ObjectIdentifier("1.3.132.0.16")
+    SECT283R1 = ObjectIdentifier("1.3.132.0.17")
+    SECT409K1 = ObjectIdentifier("1.3.132.0.36")
+    SECT409R1 = ObjectIdentifier("1.3.132.0.37")
+    SECT571K1 = ObjectIdentifier("1.3.132.0.38")
+    SECT571R1 = ObjectIdentifier("1.3.132.0.39")
+
+
+class EllipticCurve(metaclass=abc.ABCMeta):
+    @property
+    @abc.abstractmethod
+    def name(self) -> str:
+        """
+        The name of the curve. e.g. secp256r1.
+        """
+
+    @property
+    @abc.abstractmethod
+    def key_size(self) -> int:
+        """
+        Bit size of a secret scalar for the curve.
+        """
+
+
+class EllipticCurveSignatureAlgorithm(metaclass=abc.ABCMeta):
+    @property
+    @abc.abstractmethod
+    def algorithm(
+        self,
+    ) -> asym_utils.Prehashed | hashes.HashAlgorithm:
+        """
+        The digest algorithm used with this signature.
+        """
+
+
+class EllipticCurvePrivateKey(metaclass=abc.ABCMeta):
+    @abc.abstractmethod
+    def exchange(
+        self, algorithm: ECDH, peer_public_key: EllipticCurvePublicKey
+    ) -> bytes:
+        """
+        Performs a key exchange operation using the provided algorithm with the
+        provided peer's public key.
+        """
+
+    @abc.abstractmethod
+    def public_key(self) -> EllipticCurvePublicKey:
+        """
+        The EllipticCurvePublicKey for this private key.
+        """
+
+    @property
+    @abc.abstractmethod
+    def curve(self) -> EllipticCurve:
+        """
+        The EllipticCurve that this key is on.
+        """
+
+    @property
+    @abc.abstractmethod
+    def key_size(self) -> int:
+        """
+        Bit size of a secret scalar for the curve.
+        """
+
+    @abc.abstractmethod
+    def sign(
+        self,
+        data: bytes,
+        signature_algorithm: EllipticCurveSignatureAlgorithm,
+    ) -> bytes:
+        """
+        Signs the data
+        """
+
+    @abc.abstractmethod
+    def private_numbers(self) -> EllipticCurvePrivateNumbers:
+        """
+        Returns an EllipticCurvePrivateNumbers.
+        """
+
+    @abc.abstractmethod
+    def private_bytes(
+        self,
+        encoding: _serialization.Encoding,
+        format: _serialization.PrivateFormat,
+        encryption_algorithm: _serialization.KeySerializationEncryption,
+    ) -> bytes:
+        """
+        Returns the key serialized as bytes.
+        """
+
+
+EllipticCurvePrivateKeyWithSerialization = EllipticCurvePrivateKey
+EllipticCurvePrivateKey.register(rust_openssl.ec.ECPrivateKey)
+
+
+class EllipticCurvePublicKey(metaclass=abc.ABCMeta):
+    @property
+    @abc.abstractmethod
+    def curve(self) -> EllipticCurve:
+        """
+        The EllipticCurve that this key is on.
+        """
+
+    @property
+    @abc.abstractmethod
+    def key_size(self) -> int:
+        """
+        Bit size of a secret scalar for the curve.
+        """
+
+    @abc.abstractmethod
+    def public_numbers(self) -> EllipticCurvePublicNumbers:
+        """
+        Returns an EllipticCurvePublicNumbers.
+        """
+
+    @abc.abstractmethod
+    def public_bytes(
+        self,
+        encoding: _serialization.Encoding,
+        format: _serialization.PublicFormat,
+    ) -> bytes:
+        """
+        Returns the key serialized as bytes.
+        """
+
+    @abc.abstractmethod
+    def verify(
+        self,
+        signature: bytes,
+        data: bytes,
+        signature_algorithm: EllipticCurveSignatureAlgorithm,
+    ) -> None:
+        """
+        Verifies the signature of the data.
+        """
+
+    @classmethod
+    def from_encoded_point(
+        cls, curve: EllipticCurve, data: bytes
+    ) -> EllipticCurvePublicKey:
+        utils._check_bytes("data", data)
+
+        if len(data) == 0:
+            raise ValueError("data must not be an empty byte string")
+
+        if data[0] not in [0x02, 0x03, 0x04]:
+            raise ValueError("Unsupported elliptic curve point type")
+
+        return rust_openssl.ec.from_public_bytes(curve, data)
+
+    @abc.abstractmethod
+    def __eq__(self, other: object) -> bool:
+        """
+        Checks equality.
+        """
+
+
+EllipticCurvePublicKeyWithSerialization = EllipticCurvePublicKey
+EllipticCurvePublicKey.register(rust_openssl.ec.ECPublicKey)
+
+EllipticCurvePrivateNumbers = rust_openssl.ec.EllipticCurvePrivateNumbers
+EllipticCurvePublicNumbers = rust_openssl.ec.EllipticCurvePublicNumbers
+
+
+class SECT571R1(EllipticCurve):
+    name = "sect571r1"
+    key_size = 570
+
+
+class SECT409R1(EllipticCurve):
+    name = "sect409r1"
+    key_size = 409
+
+
+class SECT283R1(EllipticCurve):
+    name = "sect283r1"
+    key_size = 283
+
+
+class SECT233R1(EllipticCurve):
+    name = "sect233r1"
+    key_size = 233
+
+
+class SECT163R2(EllipticCurve):
+    name = "sect163r2"
+    key_size = 163
+
+
+class SECT571K1(EllipticCurve):
+    name = "sect571k1"
+    key_size = 571
+
+
+class SECT409K1(EllipticCurve):
+    name = "sect409k1"
+    key_size = 409
+
+
+class SECT283K1(EllipticCurve):
+    name = "sect283k1"
+    key_size = 283
+
+
+class SECT233K1(EllipticCurve):
+    name = "sect233k1"
+    key_size = 233
+
+
+class SECT163K1(EllipticCurve):
+    name = "sect163k1"
+    key_size = 163
+
+
+class SECP521R1(EllipticCurve):
+    name = "secp521r1"
+    key_size = 521
+
+
+class SECP384R1(EllipticCurve):
+    name = "secp384r1"
+    key_size = 384
+
+
+class SECP256R1(EllipticCurve):
+    name = "secp256r1"
+    key_size = 256
+
+
+class SECP256K1(EllipticCurve):
+    name = "secp256k1"
+    key_size = 256
+
+
+class SECP224R1(EllipticCurve):
+    name = "secp224r1"
+    key_size = 224
+
+
+class SECP192R1(EllipticCurve):
+    name = "secp192r1"
+    key_size = 192
+
+
+class BrainpoolP256R1(EllipticCurve):
+    name = "brainpoolP256r1"
+    key_size = 256
+
+
+class BrainpoolP384R1(EllipticCurve):
+    name = "brainpoolP384r1"
+    key_size = 384
+
+
+class BrainpoolP512R1(EllipticCurve):
+    name = "brainpoolP512r1"
+    key_size = 512
+
+
+_CURVE_TYPES: dict[str, EllipticCurve] = {
+    "prime192v1": SECP192R1(),
+    "prime256v1": SECP256R1(),
+    "secp192r1": SECP192R1(),
+    "secp224r1": SECP224R1(),
+    "secp256r1": SECP256R1(),
+    "secp384r1": SECP384R1(),
+    "secp521r1": SECP521R1(),
+    "secp256k1": SECP256K1(),
+    "sect163k1": SECT163K1(),
+    "sect233k1": SECT233K1(),
+    "sect283k1": SECT283K1(),
+    "sect409k1": SECT409K1(),
+    "sect571k1": SECT571K1(),
+    "sect163r2": SECT163R2(),
+    "sect233r1": SECT233R1(),
+    "sect283r1": SECT283R1(),
+    "sect409r1": SECT409R1(),
+    "sect571r1": SECT571R1(),
+    "brainpoolP256r1": BrainpoolP256R1(),
+    "brainpoolP384r1": BrainpoolP384R1(),
+    "brainpoolP512r1": BrainpoolP512R1(),
+}
+
+
+class ECDSA(EllipticCurveSignatureAlgorithm):
+    def __init__(
+        self,
+        algorithm: asym_utils.Prehashed | hashes.HashAlgorithm,
+    ):
+        self._algorithm = algorithm
+
+    @property
+    def algorithm(
+        self,
+    ) -> asym_utils.Prehashed | hashes.HashAlgorithm:
+        return self._algorithm
+
+
+generate_private_key = rust_openssl.ec.generate_private_key
+
+
+def derive_private_key(
+    private_value: int,
+    curve: EllipticCurve,
+    backend: typing.Any = None,
+) -> EllipticCurvePrivateKey:
+    if not isinstance(private_value, int):
+        raise TypeError("private_value must be an integer type.")
+
+    if private_value <= 0:
+        raise ValueError("private_value must be a positive integer.")
+
+    return rust_openssl.ec.derive_private_key(private_value, curve)
+
+
+class ECDH:
+    pass
+
+
+_OID_TO_CURVE = {
+    EllipticCurveOID.SECP192R1: SECP192R1,
+    EllipticCurveOID.SECP224R1: SECP224R1,
+    EllipticCurveOID.SECP256K1: SECP256K1,
+    EllipticCurveOID.SECP256R1: SECP256R1,
+    EllipticCurveOID.SECP384R1: SECP384R1,
+    EllipticCurveOID.SECP521R1: SECP521R1,
+    EllipticCurveOID.BRAINPOOLP256R1: BrainpoolP256R1,
+    EllipticCurveOID.BRAINPOOLP384R1: BrainpoolP384R1,
+    EllipticCurveOID.BRAINPOOLP512R1: BrainpoolP512R1,
+    EllipticCurveOID.SECT163K1: SECT163K1,
+    EllipticCurveOID.SECT163R2: SECT163R2,
+    EllipticCurveOID.SECT233K1: SECT233K1,
+    EllipticCurveOID.SECT233R1: SECT233R1,
+    EllipticCurveOID.SECT283K1: SECT283K1,
+    EllipticCurveOID.SECT283R1: SECT283R1,
+    EllipticCurveOID.SECT409K1: SECT409K1,
+    EllipticCurveOID.SECT409R1: SECT409R1,
+    EllipticCurveOID.SECT571K1: SECT571K1,
+    EllipticCurveOID.SECT571R1: SECT571R1,
+}
+
+
+def get_curve_for_oid(oid: ObjectIdentifier) -> type[EllipticCurve]:
+    try:
+        return _OID_TO_CURVE[oid]
+    except KeyError:
+        raise LookupError(
+            "The provided object identifier has no matching elliptic "
+            "curve class"
+        )

gcloud/virtenv/lib/python3.12/site-packages/cryptography/hazmat/primitives/asymmetric/ed25519.py

@@ -0,0 +1,116 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+
+from __future__ import annotations
+
+import abc
+
+from cryptography.exceptions import UnsupportedAlgorithm, _Reasons
+from cryptography.hazmat.bindings._rust import openssl as rust_openssl
+from cryptography.hazmat.primitives import _serialization
+
+
+class Ed25519PublicKey(metaclass=abc.ABCMeta):
+    @classmethod
+    def from_public_bytes(cls, data: bytes) -> Ed25519PublicKey:
+        from cryptography.hazmat.backends.openssl.backend import backend
+
+        if not backend.ed25519_supported():
+            raise UnsupportedAlgorithm(
+                "ed25519 is not supported by this version of OpenSSL.",
+                _Reasons.UNSUPPORTED_PUBLIC_KEY_ALGORITHM,
+            )
+
+        return rust_openssl.ed25519.from_public_bytes(data)
+
+    @abc.abstractmethod
+    def public_bytes(
+        self,
+        encoding: _serialization.Encoding,
+        format: _serialization.PublicFormat,
+    ) -> bytes:
+        """
+        The serialized bytes of the public key.
+        """
+
+    @abc.abstractmethod
+    def public_bytes_raw(self) -> bytes:
+        """
+        The raw bytes of the public key.
+        Equivalent to public_bytes(Raw, Raw).
+        """
+
+    @abc.abstractmethod
+    def verify(self, signature: bytes, data: bytes) -> None:
+        """
+        Verify the signature.
+        """
+
+    @abc.abstractmethod
+    def __eq__(self, other: object) -> bool:
+        """
+        Checks equality.
+        """
+
+
+Ed25519PublicKey.register(rust_openssl.ed25519.Ed25519PublicKey)
+
+
+class Ed25519PrivateKey(metaclass=abc.ABCMeta):
+    @classmethod
+    def generate(cls) -> Ed25519PrivateKey:
+        from cryptography.hazmat.backends.openssl.backend import backend
+
+        if not backend.ed25519_supported():
+            raise UnsupportedAlgorithm(
+                "ed25519 is not supported by this version of OpenSSL.",
+                _Reasons.UNSUPPORTED_PUBLIC_KEY_ALGORITHM,
+            )
+
+        return rust_openssl.ed25519.generate_key()
+
+    @classmethod
+    def from_private_bytes(cls, data: bytes) -> Ed25519PrivateKey:
+        from cryptography.hazmat.backends.openssl.backend import backend
+
+        if not backend.ed25519_supported():
+            raise UnsupportedAlgorithm(
+                "ed25519 is not supported by this version of OpenSSL.",
+                _Reasons.UNSUPPORTED_PUBLIC_KEY_ALGORITHM,
+            )
+
+        return rust_openssl.ed25519.from_private_bytes(data)
+
+    @abc.abstractmethod
+    def public_key(self) -> Ed25519PublicKey:
+        """
+        The Ed25519PublicKey derived from the private key.
+        """
+
+    @abc.abstractmethod
+    def private_bytes(
+        self,
+        encoding: _serialization.Encoding,
+        format: _serialization.PrivateFormat,
+        encryption_algorithm: _serialization.KeySerializationEncryption,
+    ) -> bytes:
+        """
+        The serialized bytes of the private key.
+        """
+
+    @abc.abstractmethod
+    def private_bytes_raw(self) -> bytes:
+        """
+        The raw bytes of the private key.
+        Equivalent to private_bytes(Raw, Raw, NoEncryption()).
+        """
+
+    @abc.abstractmethod
+    def sign(self, data: bytes) -> bytes:
+        """
+        Signs the data.
+        """
+
+
+Ed25519PrivateKey.register(rust_openssl.ed25519.Ed25519PrivateKey)

gcloud/virtenv/lib/python3.12/site-packages/cryptography/hazmat/primitives/asymmetric/ed448.py

@@ -0,0 +1,118 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+
+from __future__ import annotations
+
+import abc
+
+from cryptography.exceptions import UnsupportedAlgorithm, _Reasons
+from cryptography.hazmat.bindings._rust import openssl as rust_openssl
+from cryptography.hazmat.primitives import _serialization
+
+
+class Ed448PublicKey(metaclass=abc.ABCMeta):
+    @classmethod
+    def from_public_bytes(cls, data: bytes) -> Ed448PublicKey:
+        from cryptography.hazmat.backends.openssl.backend import backend
+
+        if not backend.ed448_supported():
+            raise UnsupportedAlgorithm(
+                "ed448 is not supported by this version of OpenSSL.",
+                _Reasons.UNSUPPORTED_PUBLIC_KEY_ALGORITHM,
+            )
+
+        return rust_openssl.ed448.from_public_bytes(data)
+
+    @abc.abstractmethod
+    def public_bytes(
+        self,
+        encoding: _serialization.Encoding,
+        format: _serialization.PublicFormat,
+    ) -> bytes:
+        """
+        The serialized bytes of the public key.
+        """
+
+    @abc.abstractmethod
+    def public_bytes_raw(self) -> bytes:
+        """
+        The raw bytes of the public key.
+        Equivalent to public_bytes(Raw, Raw).
+        """
+
+    @abc.abstractmethod
+    def verify(self, signature: bytes, data: bytes) -> None:
+        """
+        Verify the signature.
+        """
+
+    @abc.abstractmethod
+    def __eq__(self, other: object) -> bool:
+        """
+        Checks equality.
+        """
+
+
+if hasattr(rust_openssl, "ed448"):
+    Ed448PublicKey.register(rust_openssl.ed448.Ed448PublicKey)
+
+
+class Ed448PrivateKey(metaclass=abc.ABCMeta):
+    @classmethod
+    def generate(cls) -> Ed448PrivateKey:
+        from cryptography.hazmat.backends.openssl.backend import backend
+
+        if not backend.ed448_supported():
+            raise UnsupportedAlgorithm(
+                "ed448 is not supported by this version of OpenSSL.",
+                _Reasons.UNSUPPORTED_PUBLIC_KEY_ALGORITHM,
+            )
+
+        return rust_openssl.ed448.generate_key()
+
+    @classmethod
+    def from_private_bytes(cls, data: bytes) -> Ed448PrivateKey:
+        from cryptography.hazmat.backends.openssl.backend import backend
+
+        if not backend.ed448_supported():
+            raise UnsupportedAlgorithm(
+                "ed448 is not supported by this version of OpenSSL.",
+                _Reasons.UNSUPPORTED_PUBLIC_KEY_ALGORITHM,
+            )
+
+        return rust_openssl.ed448.from_private_bytes(data)
+
+    @abc.abstractmethod
+    def public_key(self) -> Ed448PublicKey:
+        """
+        The Ed448PublicKey derived from the private key.
+        """
+
+    @abc.abstractmethod
+    def sign(self, data: bytes) -> bytes:
+        """
+        Signs the data.
+        """
+
+    @abc.abstractmethod
+    def private_bytes(
+        self,
+        encoding: _serialization.Encoding,
+        format: _serialization.PrivateFormat,
+        encryption_algorithm: _serialization.KeySerializationEncryption,
+    ) -> bytes:
+        """
+        The serialized bytes of the private key.
+        """
+
+    @abc.abstractmethod
+    def private_bytes_raw(self) -> bytes:
+        """
+        The raw bytes of the private key.
+        Equivalent to private_bytes(Raw, Raw, NoEncryption()).
+        """
+
+
+if hasattr(rust_openssl, "x448"):
+    Ed448PrivateKey.register(rust_openssl.ed448.Ed448PrivateKey)

gcloud/virtenv/lib/python3.12/site-packages/cryptography/hazmat/primitives/asymmetric/padding.py

@@ -0,0 +1,113 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+
+from __future__ import annotations
+
+import abc
+
+from cryptography.hazmat.primitives import hashes
+from cryptography.hazmat.primitives._asymmetric import (
+    AsymmetricPadding as AsymmetricPadding,
+)
+from cryptography.hazmat.primitives.asymmetric import rsa
+
+
+class PKCS1v15(AsymmetricPadding):
+    name = "EMSA-PKCS1-v1_5"
+
+
+class _MaxLength:
+    "Sentinel value for `MAX_LENGTH`."
+
+
+class _Auto:
+    "Sentinel value for `AUTO`."
+
+
+class _DigestLength:
+    "Sentinel value for `DIGEST_LENGTH`."
+
+
+class PSS(AsymmetricPadding):
+    MAX_LENGTH = _MaxLength()
+    AUTO = _Auto()
+    DIGEST_LENGTH = _DigestLength()
+    name = "EMSA-PSS"
+    _salt_length: int | _MaxLength | _Auto | _DigestLength
+
+    def __init__(
+        self,
+        mgf: MGF,
+        salt_length: int | _MaxLength | _Auto | _DigestLength,
+    ) -> None:
+        self._mgf = mgf
+
+        if not isinstance(
+            salt_length, (int, _MaxLength, _Auto, _DigestLength)
+        ):
+            raise TypeError(
+                "salt_length must be an integer, MAX_LENGTH, "
+                "DIGEST_LENGTH, or AUTO"
+            )
+
+        if isinstance(salt_length, int) and salt_length < 0:
+            raise ValueError("salt_length must be zero or greater.")
+
+        self._salt_length = salt_length
+
+    @property
+    def mgf(self) -> MGF:
+        return self._mgf
+
+
+class OAEP(AsymmetricPadding):
+    name = "EME-OAEP"
+
+    def __init__(
+        self,
+        mgf: MGF,
+        algorithm: hashes.HashAlgorithm,
+        label: bytes | None,
+    ):
+        if not isinstance(algorithm, hashes.HashAlgorithm):
+            raise TypeError("Expected instance of hashes.HashAlgorithm.")
+
+        self._mgf = mgf
+        self._algorithm = algorithm
+        self._label = label
+
+    @property
+    def algorithm(self) -> hashes.HashAlgorithm:
+        return self._algorithm
+
+    @property
+    def mgf(self) -> MGF:
+        return self._mgf
+
+
+class MGF(metaclass=abc.ABCMeta):
+    _algorithm: hashes.HashAlgorithm
+
+
+class MGF1(MGF):
+    MAX_LENGTH = _MaxLength()
+
+    def __init__(self, algorithm: hashes.HashAlgorithm):
+        if not isinstance(algorithm, hashes.HashAlgorithm):
+            raise TypeError("Expected instance of hashes.HashAlgorithm.")
+
+        self._algorithm = algorithm
+
+
+def calculate_max_pss_salt_length(
+    key: rsa.RSAPrivateKey | rsa.RSAPublicKey,
+    hash_algorithm: hashes.HashAlgorithm,
+) -> int:
+    if not isinstance(key, (rsa.RSAPrivateKey, rsa.RSAPublicKey)):
+        raise TypeError("key must be an RSA public or private key")
+    # bit length - 1 per RFC 3447
+    emlen = (key.key_size + 6) // 8
+    salt_length = emlen - hash_algorithm.digest_size - 2
+    assert salt_length >= 0
+    return salt_length

gcloud/virtenv/lib/python3.12/site-packages/cryptography/hazmat/primitives/asymmetric/rsa.py

@@ -0,0 +1,239 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+
+from __future__ import annotations
+
+import abc
+import typing
+from math import gcd
+
+from cryptography.hazmat.bindings._rust import openssl as rust_openssl
+from cryptography.hazmat.primitives import _serialization, hashes
+from cryptography.hazmat.primitives._asymmetric import AsymmetricPadding
+from cryptography.hazmat.primitives.asymmetric import utils as asym_utils
+
+
+class RSAPrivateKey(metaclass=abc.ABCMeta):
+    @abc.abstractmethod
+    def decrypt(self, ciphertext: bytes, padding: AsymmetricPadding) -> bytes:
+        """
+        Decrypts the provided ciphertext.
+        """
+
+    @property
+    @abc.abstractmethod
+    def key_size(self) -> int:
+        """
+        The bit length of the public modulus.
+        """
+
+    @abc.abstractmethod
+    def public_key(self) -> RSAPublicKey:
+        """
+        The RSAPublicKey associated with this private key.
+        """
+
+    @abc.abstractmethod
+    def sign(
+        self,
+        data: bytes,
+        padding: AsymmetricPadding,
+        algorithm: asym_utils.Prehashed | hashes.HashAlgorithm,
+    ) -> bytes:
+        """
+        Signs the data.
+        """
+
+    @abc.abstractmethod
+    def private_numbers(self) -> RSAPrivateNumbers:
+        """
+        Returns an RSAPrivateNumbers.
+        """
+
+    @abc.abstractmethod
+    def private_bytes(
+        self,
+        encoding: _serialization.Encoding,
+        format: _serialization.PrivateFormat,
+        encryption_algorithm: _serialization.KeySerializationEncryption,
+    ) -> bytes:
+        """
+        Returns the key serialized as bytes.
+        """
+
+
+RSAPrivateKeyWithSerialization = RSAPrivateKey
+RSAPrivateKey.register(rust_openssl.rsa.RSAPrivateKey)
+
+
+class RSAPublicKey(metaclass=abc.ABCMeta):
+    @abc.abstractmethod
+    def encrypt(self, plaintext: bytes, padding: AsymmetricPadding) -> bytes:
+        """
+        Encrypts the given plaintext.
+        """
+
+    @property
+    @abc.abstractmethod
+    def key_size(self) -> int:
+        """
+        The bit length of the public modulus.
+        """
+
+    @abc.abstractmethod
+    def public_numbers(self) -> RSAPublicNumbers:
+        """
+        Returns an RSAPublicNumbers
+        """
+
+    @abc.abstractmethod
+    def public_bytes(
+        self,
+        encoding: _serialization.Encoding,
+        format: _serialization.PublicFormat,
+    ) -> bytes:
+        """
+        Returns the key serialized as bytes.
+        """
+
+    @abc.abstractmethod
+    def verify(
+        self,
+        signature: bytes,
+        data: bytes,
+        padding: AsymmetricPadding,
+        algorithm: asym_utils.Prehashed | hashes.HashAlgorithm,
+    ) -> None:
+        """
+        Verifies the signature of the data.
+        """
+
+    @abc.abstractmethod
+    def recover_data_from_signature(
+        self,
+        signature: bytes,
+        padding: AsymmetricPadding,
+        algorithm: hashes.HashAlgorithm | None,
+    ) -> bytes:
+        """
+        Recovers the original data from the signature.
+        """
+
+    @abc.abstractmethod
+    def __eq__(self, other: object) -> bool:
+        """
+        Checks equality.
+        """
+
+
+RSAPublicKeyWithSerialization = RSAPublicKey
+RSAPublicKey.register(rust_openssl.rsa.RSAPublicKey)
+
+RSAPrivateNumbers = rust_openssl.rsa.RSAPrivateNumbers
+RSAPublicNumbers = rust_openssl.rsa.RSAPublicNumbers
+
+
+def generate_private_key(
+    public_exponent: int,
+    key_size: int,
+    backend: typing.Any = None,
+) -> RSAPrivateKey:
+    _verify_rsa_parameters(public_exponent, key_size)
+    return rust_openssl.rsa.generate_private_key(public_exponent, key_size)
+
+
+def _verify_rsa_parameters(public_exponent: int, key_size: int) -> None:
+    if public_exponent not in (3, 65537):
+        raise ValueError(
+            "public_exponent must be either 3 (for legacy compatibility) or "
+            "65537. Almost everyone should choose 65537 here!"
+        )
+
+    if key_size < 512:
+        raise ValueError("key_size must be at least 512-bits.")
+
+
+def _modinv(e: int, m: int) -> int:
+    """
+    Modular Multiplicative Inverse. Returns x such that: (x*e) mod m == 1
+    """
+    x1, x2 = 1, 0
+    a, b = e, m
+    while b > 0:
+        q, r = divmod(a, b)
+        xn = x1 - q * x2
+        a, b, x1, x2 = b, r, x2, xn
+    return x1 % m
+
+
+def rsa_crt_iqmp(p: int, q: int) -> int:
+    """
+    Compute the CRT (q ** -1) % p value from RSA primes p and q.
+    """
+    return _modinv(q, p)
+
+
+def rsa_crt_dmp1(private_exponent: int, p: int) -> int:
+    """
+    Compute the CRT private_exponent % (p - 1) value from the RSA
+    private_exponent (d) and p.
+    """
+    return private_exponent % (p - 1)
+
+
+def rsa_crt_dmq1(private_exponent: int, q: int) -> int:
+    """
+    Compute the CRT private_exponent % (q - 1) value from the RSA
+    private_exponent (d) and q.
+    """
+    return private_exponent % (q - 1)
+
+
+# Controls the number of iterations rsa_recover_prime_factors will perform
+# to obtain the prime factors. Each iteration increments by 2 so the actual
+# maximum attempts is half this number.
+_MAX_RECOVERY_ATTEMPTS = 1000
+
+
+def rsa_recover_prime_factors(n: int, e: int, d: int) -> tuple[int, int]:
+    """
+    Compute factors p and q from the private exponent d. We assume that n has
+    no more than two factors. This function is adapted from code in PyCrypto.
+    """
+    # See 8.2.2(i) in Handbook of Applied Cryptography.
+    ktot = d * e - 1
+    # The quantity d*e-1 is a multiple of phi(n), even,
+    # and can be represented as t*2^s.
+    t = ktot
+    while t % 2 == 0:
+        t = t // 2
+    # Cycle through all multiplicative inverses in Zn.
+    # The algorithm is non-deterministic, but there is a 50% chance
+    # any candidate a leads to successful factoring.
+    # See "Digitalized Signatures and Public Key Functions as Intractable
+    # as Factorization", M. Rabin, 1979
+    spotted = False
+    a = 2
+    while not spotted and a < _MAX_RECOVERY_ATTEMPTS:
+        k = t
+        # Cycle through all values a^{t*2^i}=a^k
+        while k < ktot:
+            cand = pow(a, k, n)
+            # Check if a^k is a non-trivial root of unity (mod n)
+            if cand != 1 and cand != (n - 1) and pow(cand, 2, n) == 1:
+                # We have found a number such that (cand-1)(cand+1)=0 (mod n).
+                # Either of the terms divides n.
+                p = gcd(cand + 1, n)
+                spotted = True
+                break
+            k *= 2
+        # This value was not any good... let's try another!
+        a += 2
+    if not spotted:
+        raise ValueError("Unable to compute factors p and q from exponent d.")
+    # Found !
+    q, r = divmod(n, p)
+    assert r == 0
+    p, q = sorted((p, q), reverse=True)
+    return (p, q)

gcloud/virtenv/lib/python3.12/site-packages/cryptography/hazmat/primitives/asymmetric/types.py

@@ -0,0 +1,111 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+
+from __future__ import annotations
+
+import typing
+
+from cryptography import utils
+from cryptography.hazmat.primitives.asymmetric import (
+    dh,
+    dsa,
+    ec,
+    ed448,
+    ed25519,
+    rsa,
+    x448,
+    x25519,
+)
+
+# Every asymmetric key type
+PublicKeyTypes = typing.Union[
+    dh.DHPublicKey,
+    dsa.DSAPublicKey,
+    rsa.RSAPublicKey,
+    ec.EllipticCurvePublicKey,
+    ed25519.Ed25519PublicKey,
+    ed448.Ed448PublicKey,
+    x25519.X25519PublicKey,
+    x448.X448PublicKey,
+]
+PUBLIC_KEY_TYPES = PublicKeyTypes
+utils.deprecated(
+    PUBLIC_KEY_TYPES,
+    __name__,
+    "Use PublicKeyTypes instead",
+    utils.DeprecatedIn40,
+    name="PUBLIC_KEY_TYPES",
+)
+# Every asymmetric key type
+PrivateKeyTypes = typing.Union[
+    dh.DHPrivateKey,
+    ed25519.Ed25519PrivateKey,
+    ed448.Ed448PrivateKey,
+    rsa.RSAPrivateKey,
+    dsa.DSAPrivateKey,
+    ec.EllipticCurvePrivateKey,
+    x25519.X25519PrivateKey,
+    x448.X448PrivateKey,
+]
+PRIVATE_KEY_TYPES = PrivateKeyTypes
+utils.deprecated(
+    PRIVATE_KEY_TYPES,
+    __name__,
+    "Use PrivateKeyTypes instead",
+    utils.DeprecatedIn40,
+    name="PRIVATE_KEY_TYPES",
+)
+# Just the key types we allow to be used for x509 signing. This mirrors
+# the certificate public key types
+CertificateIssuerPrivateKeyTypes = typing.Union[
+    ed25519.Ed25519PrivateKey,
+    ed448.Ed448PrivateKey,
+    rsa.RSAPrivateKey,
+    dsa.DSAPrivateKey,
+    ec.EllipticCurvePrivateKey,
+]
+CERTIFICATE_PRIVATE_KEY_TYPES = CertificateIssuerPrivateKeyTypes
+utils.deprecated(
+    CERTIFICATE_PRIVATE_KEY_TYPES,
+    __name__,
+    "Use CertificateIssuerPrivateKeyTypes instead",
+    utils.DeprecatedIn40,
+    name="CERTIFICATE_PRIVATE_KEY_TYPES",
+)
+# Just the key types we allow to be used for x509 signing. This mirrors
+# the certificate private key types
+CertificateIssuerPublicKeyTypes = typing.Union[
+    dsa.DSAPublicKey,
+    rsa.RSAPublicKey,
+    ec.EllipticCurvePublicKey,
+    ed25519.Ed25519PublicKey,
+    ed448.Ed448PublicKey,
+]
+CERTIFICATE_ISSUER_PUBLIC_KEY_TYPES = CertificateIssuerPublicKeyTypes
+utils.deprecated(
+    CERTIFICATE_ISSUER_PUBLIC_KEY_TYPES,
+    __name__,
+    "Use CertificateIssuerPublicKeyTypes instead",
+    utils.DeprecatedIn40,
+    name="CERTIFICATE_ISSUER_PUBLIC_KEY_TYPES",
+)
+# This type removes DHPublicKey. x448/x25519 can be a public key
+# but cannot be used in signing so they are allowed here.
+CertificatePublicKeyTypes = typing.Union[
+    dsa.DSAPublicKey,
+    rsa.RSAPublicKey,
+    ec.EllipticCurvePublicKey,
+    ed25519.Ed25519PublicKey,
+    ed448.Ed448PublicKey,
+    x25519.X25519PublicKey,
+    x448.X448PublicKey,
+]
+CERTIFICATE_PUBLIC_KEY_TYPES = CertificatePublicKeyTypes
+utils.deprecated(
+    CERTIFICATE_PUBLIC_KEY_TYPES,
+    __name__,
+    "Use CertificatePublicKeyTypes instead",
+    utils.DeprecatedIn40,
+    name="CERTIFICATE_PUBLIC_KEY_TYPES",
+)

gcloud/virtenv/lib/python3.12/site-packages/cryptography/hazmat/primitives/asymmetric/utils.py

@@ -0,0 +1,24 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+
+from __future__ import annotations
+
+from cryptography.hazmat.bindings._rust import asn1
+from cryptography.hazmat.primitives import hashes
+
+decode_dss_signature = asn1.decode_dss_signature
+encode_dss_signature = asn1.encode_dss_signature
+
+
+class Prehashed:
+    def __init__(self, algorithm: hashes.HashAlgorithm):
+        if not isinstance(algorithm, hashes.HashAlgorithm):
+            raise TypeError("Expected instance of HashAlgorithm.")
+
+        self._algorithm = algorithm
+        self._digest_size = algorithm.digest_size
+
+    @property
+    def digest_size(self) -> int:
+        return self._digest_size

gcloud/virtenv/lib/python3.12/site-packages/cryptography/hazmat/primitives/asymmetric/x25519.py

@@ -0,0 +1,109 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+
+from __future__ import annotations
+
+import abc
+
+from cryptography.exceptions import UnsupportedAlgorithm, _Reasons
+from cryptography.hazmat.bindings._rust import openssl as rust_openssl
+from cryptography.hazmat.primitives import _serialization
+
+
+class X25519PublicKey(metaclass=abc.ABCMeta):
+    @classmethod
+    def from_public_bytes(cls, data: bytes) -> X25519PublicKey:
+        from cryptography.hazmat.backends.openssl.backend import backend
+
+        if not backend.x25519_supported():
+            raise UnsupportedAlgorithm(
+                "X25519 is not supported by this version of OpenSSL.",
+                _Reasons.UNSUPPORTED_EXCHANGE_ALGORITHM,
+            )
+
+        return rust_openssl.x25519.from_public_bytes(data)
+
+    @abc.abstractmethod
+    def public_bytes(
+        self,
+        encoding: _serialization.Encoding,
+        format: _serialization.PublicFormat,
+    ) -> bytes:
+        """
+        The serialized bytes of the public key.
+        """
+
+    @abc.abstractmethod
+    def public_bytes_raw(self) -> bytes:
+        """
+        The raw bytes of the public key.
+        Equivalent to public_bytes(Raw, Raw).
+        """
+
+    @abc.abstractmethod
+    def __eq__(self, other: object) -> bool:
+        """
+        Checks equality.
+        """
+
+
+X25519PublicKey.register(rust_openssl.x25519.X25519PublicKey)
+
+
+class X25519PrivateKey(metaclass=abc.ABCMeta):
+    @classmethod
+    def generate(cls) -> X25519PrivateKey:
+        from cryptography.hazmat.backends.openssl.backend import backend
+
+        if not backend.x25519_supported():
+            raise UnsupportedAlgorithm(
+                "X25519 is not supported by this version of OpenSSL.",
+                _Reasons.UNSUPPORTED_EXCHANGE_ALGORITHM,
+            )
+        return rust_openssl.x25519.generate_key()
+
+    @classmethod
+    def from_private_bytes(cls, data: bytes) -> X25519PrivateKey:
+        from cryptography.hazmat.backends.openssl.backend import backend
+
+        if not backend.x25519_supported():
+            raise UnsupportedAlgorithm(
+                "X25519 is not supported by this version of OpenSSL.",
+                _Reasons.UNSUPPORTED_EXCHANGE_ALGORITHM,
+            )
+
+        return rust_openssl.x25519.from_private_bytes(data)
+
+    @abc.abstractmethod
+    def public_key(self) -> X25519PublicKey:
+        """
+        Returns the public key associated with this private key
+        """
+
+    @abc.abstractmethod
+    def private_bytes(
+        self,
+        encoding: _serialization.Encoding,
+        format: _serialization.PrivateFormat,
+        encryption_algorithm: _serialization.KeySerializationEncryption,
+    ) -> bytes:
+        """
+        The serialized bytes of the private key.
+        """
+
+    @abc.abstractmethod
+    def private_bytes_raw(self) -> bytes:
+        """
+        The raw bytes of the private key.
+        Equivalent to private_bytes(Raw, Raw, NoEncryption()).
+        """
+
+    @abc.abstractmethod
+    def exchange(self, peer_public_key: X25519PublicKey) -> bytes:
+        """
+        Performs a key exchange operation using the provided peer's public key.
+        """
+
+
+X25519PrivateKey.register(rust_openssl.x25519.X25519PrivateKey)

gcloud/virtenv/lib/python3.12/site-packages/cryptography/hazmat/primitives/asymmetric/x448.py

@@ -0,0 +1,112 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+
+from __future__ import annotations
+
+import abc
+
+from cryptography.exceptions import UnsupportedAlgorithm, _Reasons
+from cryptography.hazmat.bindings._rust import openssl as rust_openssl
+from cryptography.hazmat.primitives import _serialization
+
+
+class X448PublicKey(metaclass=abc.ABCMeta):
+    @classmethod
+    def from_public_bytes(cls, data: bytes) -> X448PublicKey:
+        from cryptography.hazmat.backends.openssl.backend import backend
+
+        if not backend.x448_supported():
+            raise UnsupportedAlgorithm(
+                "X448 is not supported by this version of OpenSSL.",
+                _Reasons.UNSUPPORTED_EXCHANGE_ALGORITHM,
+            )
+
+        return rust_openssl.x448.from_public_bytes(data)
+
+    @abc.abstractmethod
+    def public_bytes(
+        self,
+        encoding: _serialization.Encoding,
+        format: _serialization.PublicFormat,
+    ) -> bytes:
+        """
+        The serialized bytes of the public key.
+        """
+
+    @abc.abstractmethod
+    def public_bytes_raw(self) -> bytes:
+        """
+        The raw bytes of the public key.
+        Equivalent to public_bytes(Raw, Raw).
+        """
+
+    @abc.abstractmethod
+    def __eq__(self, other: object) -> bool:
+        """
+        Checks equality.
+        """
+
+
+if hasattr(rust_openssl, "x448"):
+    X448PublicKey.register(rust_openssl.x448.X448PublicKey)
+
+
+class X448PrivateKey(metaclass=abc.ABCMeta):
+    @classmethod
+    def generate(cls) -> X448PrivateKey:
+        from cryptography.hazmat.backends.openssl.backend import backend
+
+        if not backend.x448_supported():
+            raise UnsupportedAlgorithm(
+                "X448 is not supported by this version of OpenSSL.",
+                _Reasons.UNSUPPORTED_EXCHANGE_ALGORITHM,
+            )
+
+        return rust_openssl.x448.generate_key()
+
+    @classmethod
+    def from_private_bytes(cls, data: bytes) -> X448PrivateKey:
+        from cryptography.hazmat.backends.openssl.backend import backend
+
+        if not backend.x448_supported():
+            raise UnsupportedAlgorithm(
+                "X448 is not supported by this version of OpenSSL.",
+                _Reasons.UNSUPPORTED_EXCHANGE_ALGORITHM,
+            )
+
+        return rust_openssl.x448.from_private_bytes(data)
+
+    @abc.abstractmethod
+    def public_key(self) -> X448PublicKey:
+        """
+        Returns the public key associated with this private key
+        """
+
+    @abc.abstractmethod
+    def private_bytes(
+        self,
+        encoding: _serialization.Encoding,
+        format: _serialization.PrivateFormat,
+        encryption_algorithm: _serialization.KeySerializationEncryption,
+    ) -> bytes:
+        """
+        The serialized bytes of the private key.
+        """
+
+    @abc.abstractmethod
+    def private_bytes_raw(self) -> bytes:
+        """
+        The raw bytes of the private key.
+        Equivalent to private_bytes(Raw, Raw, NoEncryption()).
+        """
+
+    @abc.abstractmethod
+    def exchange(self, peer_public_key: X448PublicKey) -> bytes:
+        """
+        Performs a key exchange operation using the provided peer's public key.
+        """
+
+
+if hasattr(rust_openssl, "x448"):
+    X448PrivateKey.register(rust_openssl.x448.X448PrivateKey)

gcloud/virtenv/lib/python3.12/site-packages/cryptography/hazmat/primitives/ciphers/__init__.py

@@ -0,0 +1,27 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+
+from __future__ import annotations
+
+from cryptography.hazmat.primitives._cipheralgorithm import (
+    BlockCipherAlgorithm,
+    CipherAlgorithm,
+)
+from cryptography.hazmat.primitives.ciphers.base import (
+    AEADCipherContext,
+    AEADDecryptionContext,
+    AEADEncryptionContext,
+    Cipher,
+    CipherContext,
+)
+
+__all__ = [
+    "Cipher",
+    "CipherAlgorithm",
+    "BlockCipherAlgorithm",
+    "CipherContext",
+    "AEADCipherContext",
+    "AEADDecryptionContext",
+    "AEADEncryptionContext",
+]