Update dashboard, memory, root +2 more (+3 ~5)

venv/lib/python3.12/site-packages/google/auth/crypt/__init__.py

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+# Copyright 2016 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""Cryptography helpers for verifying and signing messages.
+
+The simplest way to verify signatures is using :func:`verify_signature`::
+
+    cert = open('certs.pem').read()
+    valid = crypt.verify_signature(message, signature, cert)
+
+If you're going to verify many messages with the same certificate, you can use
+:class:`RSAVerifier`::
+
+    cert = open('certs.pem').read()
+    verifier = crypt.RSAVerifier.from_string(cert)
+    valid = verifier.verify(message, signature)
+
+To sign messages use :class:`RSASigner` with a private key::
+
+    private_key = open('private_key.pem').read()
+    signer = crypt.RSASigner.from_string(private_key)
+    signature = signer.sign(message)
+
+The code above also works for :class:`ES256Signer` and :class:`ES256Verifier`.
+Note that these two classes are only available if your `cryptography` dependency
+version is at least 1.4.0.
+"""
+
+from google.auth.crypt import base
+from google.auth.crypt import es
+from google.auth.crypt import es256
+from google.auth.crypt import rsa
+
+EsSigner = es.EsSigner
+EsVerifier = es.EsVerifier
+ES256Signer = es256.ES256Signer
+ES256Verifier = es256.ES256Verifier
+
+
+# Aliases to maintain the v1.0.0 interface, as the crypt module was split
+# into submodules.
+Signer = base.Signer
+Verifier = base.Verifier
+RSASigner = rsa.RSASigner
+RSAVerifier = rsa.RSAVerifier
+
+
+def verify_signature(message, signature, certs, verifier_cls=rsa.RSAVerifier):
+    """Verify an RSA or ECDSA cryptographic signature.
+
+    Checks that the provided ``signature`` was generated from ``bytes`` using
+    the private key associated with the ``cert``.
+
+    Args:
+        message (Union[str, bytes]): The plaintext message.
+        signature (Union[str, bytes]): The cryptographic signature to check.
+        certs (Union[Sequence, str, bytes]): The certificate or certificates
+            to use to check the signature.
+        verifier_cls (Optional[~google.auth.crypt.base.Signer]): Which verifier
+            class to use for verification. This can be used to select different
+            algorithms, such as RSA or ECDSA. Default value is :class:`RSAVerifier`.
+
+    Returns:
+        bool: True if the signature is valid, otherwise False.
+    """
+    if isinstance(certs, (str, bytes)):
+        certs = [certs]
+
+    for cert in certs:
+        verifier = verifier_cls.from_string(cert)
+        if verifier.verify(message, signature):
+            return True
+    return False
+
+
+__all__ = [
+    "EsSigner",
+    "EsVerifier",
+    "ES256Signer",
+    "ES256Verifier",
+    "RSASigner",
+    "RSAVerifier",
+    "Signer",
+    "Verifier",
+]

venv/lib/python3.12/site-packages/google/auth/crypt/_cryptography_rsa.py

@@ -0,0 +1,151 @@
+# Copyright 2017 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""RSA verifier and signer that use the ``cryptography`` library.
+
+This is a much faster implementation than the default (in
+``google.auth.crypt._python_rsa``), which depends on the pure-Python
+``rsa`` library.
+"""
+
+import cryptography.exceptions
+from cryptography.hazmat import backends
+from cryptography.hazmat.primitives import hashes
+from cryptography.hazmat.primitives import serialization
+from cryptography.hazmat.primitives.asymmetric import padding
+import cryptography.x509
+
+from google.auth import _helpers
+from google.auth.crypt import base
+
+_CERTIFICATE_MARKER = b"-----BEGIN CERTIFICATE-----"
+_BACKEND = backends.default_backend()
+_PADDING = padding.PKCS1v15()
+_SHA256 = hashes.SHA256()
+
+
+class RSAVerifier(base.Verifier):
+    """Verifies RSA cryptographic signatures using public keys.
+
+    Args:
+        public_key (
+                cryptography.hazmat.primitives.asymmetric.rsa.RSAPublicKey):
+            The public key used to verify signatures.
+    """
+
+    def __init__(self, public_key):
+        self._pubkey = public_key
+
+    @_helpers.copy_docstring(base.Verifier)
+    def verify(self, message, signature):
+        message = _helpers.to_bytes(message)
+        try:
+            self._pubkey.verify(signature, message, _PADDING, _SHA256)
+            return True
+        except (ValueError, cryptography.exceptions.InvalidSignature):
+            return False
+
+    @classmethod
+    def from_string(cls, public_key):
+        """Construct an Verifier instance from a public key or public
+        certificate string.
+
+        Args:
+            public_key (Union[str, bytes]): The public key in PEM format or the
+                x509 public key certificate.
+
+        Returns:
+            Verifier: The constructed verifier.
+
+        Raises:
+            ValueError: If the public key can't be parsed.
+        """
+        public_key_data = _helpers.to_bytes(public_key)
+
+        if _CERTIFICATE_MARKER in public_key_data:
+            cert = cryptography.x509.load_pem_x509_certificate(
+                public_key_data, _BACKEND
+            )
+            pubkey = cert.public_key()
+
+        else:
+            pubkey = serialization.load_pem_public_key(public_key_data, _BACKEND)
+
+        return cls(pubkey)
+
+
+class RSASigner(base.Signer, base.FromServiceAccountMixin):
+    """Signs messages with an RSA private key.
+
+    Args:
+        private_key (
+                cryptography.hazmat.primitives.asymmetric.rsa.RSAPrivateKey):
+            The private key to sign with.
+        key_id (str): Optional key ID used to identify this private key. This
+            can be useful to associate the private key with its associated
+            public key or certificate.
+    """
+
+    def __init__(self, private_key, key_id=None):
+        self._key = private_key
+        self._key_id = key_id
+
+    @property  # type: ignore
+    @_helpers.copy_docstring(base.Signer)
+    def key_id(self):
+        return self._key_id
+
+    @_helpers.copy_docstring(base.Signer)
+    def sign(self, message):
+        message = _helpers.to_bytes(message)
+        return self._key.sign(message, _PADDING, _SHA256)
+
+    @classmethod
+    def from_string(cls, key, key_id=None):
+        """Construct a RSASigner from a private key in PEM format.
+
+        Args:
+            key (Union[bytes, str]): Private key in PEM format.
+            key_id (str): An optional key id used to identify the private key.
+
+        Returns:
+            google.auth.crypt._cryptography_rsa.RSASigner: The
+            constructed signer.
+
+        Raises:
+            ValueError: If ``key`` is not ``bytes`` or ``str`` (unicode).
+            UnicodeDecodeError: If ``key`` is ``bytes`` but cannot be decoded
+                into a UTF-8 ``str``.
+            ValueError: If ``cryptography`` "Could not deserialize key data."
+        """
+        key = _helpers.to_bytes(key)
+        private_key = serialization.load_pem_private_key(
+            key, password=None, backend=_BACKEND
+        )
+        return cls(private_key, key_id=key_id)
+
+    def __getstate__(self):
+        """Pickle helper that serializes the _key attribute."""
+        state = self.__dict__.copy()
+        state["_key"] = self._key.private_bytes(
+            encoding=serialization.Encoding.PEM,
+            format=serialization.PrivateFormat.PKCS8,
+            encryption_algorithm=serialization.NoEncryption(),
+        )
+        return state
+
+    def __setstate__(self, state):
+        """Pickle helper that deserializes the _key attribute."""
+        state["_key"] = serialization.load_pem_private_key(state["_key"], None)
+        self.__dict__.update(state)

venv/lib/python3.12/site-packages/google/auth/crypt/_python_rsa.py

@@ -0,0 +1,199 @@
+# Copyright 2016 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""Pure-Python RSA cryptography implementation.
+
+Uses the ``rsa``, ``pyasn1`` and ``pyasn1_modules`` packages
+to parse PEM files storing PKCS#1 or PKCS#8 keys as well as
+certificates. There is no support for p12 files.
+"""
+
+from __future__ import absolute_import
+
+import io
+import warnings
+
+from pyasn1.codec.der import decoder  # type: ignore
+from pyasn1_modules import pem  # type: ignore
+from pyasn1_modules.rfc2459 import Certificate  # type: ignore
+from pyasn1_modules.rfc5208 import PrivateKeyInfo  # type: ignore
+import rsa  # type: ignore
+
+from google.auth import _helpers
+from google.auth import exceptions
+from google.auth.crypt import base
+
+_POW2 = (128, 64, 32, 16, 8, 4, 2, 1)
+_CERTIFICATE_MARKER = b"-----BEGIN CERTIFICATE-----"
+_PKCS1_MARKER = ("-----BEGIN RSA PRIVATE KEY-----", "-----END RSA PRIVATE KEY-----")
+_PKCS8_MARKER = ("-----BEGIN PRIVATE KEY-----", "-----END PRIVATE KEY-----")
+_PKCS8_SPEC = PrivateKeyInfo()
+
+_warning_msg = (
+    "The 'rsa' library is deprecated and will be removed in a future release. "
+    "Please migrate to 'cryptography'."
+)
+
+
+def _bit_list_to_bytes(bit_list):
+    """Converts an iterable of 1s and 0s to bytes.
+
+    Combines the list 8 at a time, treating each group of 8 bits
+    as a single byte.
+
+    Args:
+        bit_list (Sequence): Sequence of 1s and 0s.
+
+    Returns:
+        bytes: The decoded bytes.
+    """
+    num_bits = len(bit_list)
+    byte_vals = bytearray()
+    for start in range(0, num_bits, 8):
+        curr_bits = bit_list[start : start + 8]
+        char_val = sum(val * digit for val, digit in zip(_POW2, curr_bits))
+        byte_vals.append(char_val)
+    return bytes(byte_vals)
+
+
+class RSAVerifier(base.Verifier):
+    """Verifies RSA cryptographic signatures using public keys.
+
+    .. deprecated::
+        The `rsa` library has been archived. Please migrate to
+        `cryptography`.
+
+    Args:
+        public_key (rsa.key.PublicKey): The public key used to verify
+            signatures.
+    """
+
+    def __init__(self, public_key):
+        warnings.warn(
+            _warning_msg,
+            category=DeprecationWarning,
+            stacklevel=2,
+        )
+        self._pubkey = public_key
+
+    @_helpers.copy_docstring(base.Verifier)
+    def verify(self, message, signature):
+        message = _helpers.to_bytes(message)
+        try:
+            return rsa.pkcs1.verify(message, signature, self._pubkey)
+        except (ValueError, rsa.pkcs1.VerificationError):
+            return False
+
+    @classmethod
+    def from_string(cls, public_key):
+        """Construct an Verifier instance from a public key or public
+        certificate string.
+
+        Args:
+            public_key (Union[str, bytes]): The public key in PEM format or the
+                x509 public key certificate.
+
+        Returns:
+            google.auth.crypt._python_rsa.RSAVerifier: The constructed verifier.
+
+        Raises:
+            ValueError: If the public_key can't be parsed.
+        """
+        public_key = _helpers.to_bytes(public_key)
+        is_x509_cert = _CERTIFICATE_MARKER in public_key
+
+        # If this is a certificate, extract the public key info.
+        if is_x509_cert:
+            der = rsa.pem.load_pem(public_key, "CERTIFICATE")
+            asn1_cert, remaining = decoder.decode(der, asn1Spec=Certificate())
+            if remaining != b"":
+                raise exceptions.InvalidValue("Unused bytes", remaining)
+
+            cert_info = asn1_cert["tbsCertificate"]["subjectPublicKeyInfo"]
+            key_bytes = _bit_list_to_bytes(cert_info["subjectPublicKey"])
+            pubkey = rsa.PublicKey.load_pkcs1(key_bytes, "DER")
+        else:
+            pubkey = rsa.PublicKey.load_pkcs1(public_key, "PEM")
+        return cls(pubkey)
+
+
+class RSASigner(base.Signer, base.FromServiceAccountMixin):
+    """Signs messages with an RSA private key.
+
+    .. deprecated::
+        The `rsa` library has been archived. Please migrate to
+        `cryptography`.
+
+    Args:
+        private_key (rsa.key.PrivateKey): The private key to sign with.
+        key_id (str): Optional key ID used to identify this private key. This
+            can be useful to associate the private key with its associated
+            public key or certificate.
+    """
+
+    def __init__(self, private_key, key_id=None):
+        warnings.warn(
+            _warning_msg,
+            category=DeprecationWarning,
+            stacklevel=2,
+        )
+        self._key = private_key
+        self._key_id = key_id
+
+    @property  # type: ignore
+    @_helpers.copy_docstring(base.Signer)
+    def key_id(self):
+        return self._key_id
+
+    @_helpers.copy_docstring(base.Signer)
+    def sign(self, message):
+        message = _helpers.to_bytes(message)
+        return rsa.pkcs1.sign(message, self._key, "SHA-256")
+
+    @classmethod
+    def from_string(cls, key, key_id=None):
+        """Construct an Signer instance from a private key in PEM format.
+
+        Args:
+            key (str): Private key in PEM format.
+            key_id (str): An optional key id used to identify the private key.
+
+        Returns:
+            google.auth.crypt.Signer: The constructed signer.
+
+        Raises:
+            ValueError: If the key cannot be parsed as PKCS#1 or PKCS#8 in
+                PEM format.
+        """
+        key = _helpers.from_bytes(key)  # PEM expects str in Python 3
+        marker_id, key_bytes = pem.readPemBlocksFromFile(
+            io.StringIO(key), _PKCS1_MARKER, _PKCS8_MARKER
+        )
+
+        # Key is in pkcs1 format.
+        if marker_id == 0:
+            private_key = rsa.key.PrivateKey.load_pkcs1(key_bytes, format="DER")
+        # Key is in pkcs8.
+        elif marker_id == 1:
+            key_info, remaining = decoder.decode(key_bytes, asn1Spec=_PKCS8_SPEC)
+            if remaining != b"":
+                raise exceptions.InvalidValue("Unused bytes", remaining)
+            private_key_info = key_info.getComponentByName("privateKey")
+            private_key = rsa.key.PrivateKey.load_pkcs1(
+                private_key_info.asOctets(), format="DER"
+            )
+        else:
+            raise exceptions.MalformedError("No key could be detected.")
+
+        return cls(private_key, key_id=key_id)

venv/lib/python3.12/site-packages/google/auth/crypt/base.py

@@ -0,0 +1,127 @@
+# Copyright 2016 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""Base classes for cryptographic signers and verifiers."""
+
+import abc
+import io
+import json
+
+from google.auth import exceptions
+
+_JSON_FILE_PRIVATE_KEY = "private_key"
+_JSON_FILE_PRIVATE_KEY_ID = "private_key_id"
+
+
+class Verifier(metaclass=abc.ABCMeta):
+    """Abstract base class for crytographic signature verifiers."""
+
+    @abc.abstractmethod
+    def verify(self, message, signature):
+        """Verifies a message against a cryptographic signature.
+
+        Args:
+            message (Union[str, bytes]): The message to verify.
+            signature (Union[str, bytes]): The cryptography signature to check.
+
+        Returns:
+            bool: True if message was signed by the private key associated
+            with the public key that this object was constructed with.
+        """
+        # pylint: disable=missing-raises-doc,redundant-returns-doc
+        # (pylint doesn't recognize that this is abstract)
+        raise NotImplementedError("Verify must be implemented")
+
+
+class Signer(metaclass=abc.ABCMeta):
+    """Abstract base class for cryptographic signers."""
+
+    @abc.abstractproperty
+    def key_id(self):
+        """Optional[str]: The key ID used to identify this private key."""
+        raise NotImplementedError("Key id must be implemented")
+
+    @abc.abstractmethod
+    def sign(self, message):
+        """Signs a message.
+
+        Args:
+            message (Union[str, bytes]): The message to be signed.
+
+        Returns:
+            bytes: The signature of the message.
+        """
+        # pylint: disable=missing-raises-doc,redundant-returns-doc
+        # (pylint doesn't recognize that this is abstract)
+        raise NotImplementedError("Sign must be implemented")
+
+
+class FromServiceAccountMixin(metaclass=abc.ABCMeta):
+    """Mix-in to enable factory constructors for a Signer."""
+
+    @abc.abstractmethod
+    def from_string(cls, key, key_id=None):
+        """Construct an Signer instance from a private key string.
+
+        Args:
+            key (str): Private key as a string.
+            key_id (str): An optional key id used to identify the private key.
+
+        Returns:
+            google.auth.crypt.Signer: The constructed signer.
+
+        Raises:
+            ValueError: If the key cannot be parsed.
+        """
+        raise NotImplementedError("from_string must be implemented")
+
+    @classmethod
+    def from_service_account_info(cls, info):
+        """Creates a Signer instance instance from a dictionary containing
+        service account info in Google format.
+
+        Args:
+            info (Mapping[str, str]): The service account info in Google
+                format.
+
+        Returns:
+            google.auth.crypt.Signer: The constructed signer.
+
+        Raises:
+            ValueError: If the info is not in the expected format.
+        """
+        if _JSON_FILE_PRIVATE_KEY not in info:
+            raise exceptions.MalformedError(
+                "The private_key field was not found in the service account " "info."
+            )
+
+        return cls.from_string(
+            info[_JSON_FILE_PRIVATE_KEY], info.get(_JSON_FILE_PRIVATE_KEY_ID)
+        )
+
+    @classmethod
+    def from_service_account_file(cls, filename):
+        """Creates a Signer instance from a service account .json file
+        in Google format.
+
+        Args:
+            filename (str): The path to the service account .json file.
+
+        Returns:
+            google.auth.crypt.Signer: The constructed signer.
+        """
+        with io.open(filename, "r", encoding="utf-8") as json_file:
+            data = json.load(json_file)
+
+        return cls.from_service_account_info(data)

venv/lib/python3.12/site-packages/google/auth/crypt/es.py

@@ -0,0 +1,221 @@
+# Copyright 2017 Google Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""ECDSA verifier and signer that use the ``cryptography`` library.
+"""
+
+from dataclasses import dataclass
+from typing import Any, Dict, Optional, Union
+
+import cryptography.exceptions
+from cryptography.hazmat import backends
+from cryptography.hazmat.primitives import hashes
+from cryptography.hazmat.primitives import serialization
+from cryptography.hazmat.primitives.asymmetric import ec
+from cryptography.hazmat.primitives.asymmetric import padding
+from cryptography.hazmat.primitives.asymmetric.utils import decode_dss_signature
+from cryptography.hazmat.primitives.asymmetric.utils import encode_dss_signature
+import cryptography.x509
+
+from google.auth import _helpers
+from google.auth.crypt import base
+
+
+_CERTIFICATE_MARKER = b"-----BEGIN CERTIFICATE-----"
+_BACKEND = backends.default_backend()
+_PADDING = padding.PKCS1v15()
+
+
+@dataclass
+class _ESAttributes:
+    """A class that models ECDSA attributes.
+
+    Attributes:
+        rs_size (int): Size for ASN.1 r and s size.
+        sha_algo (hashes.HashAlgorithm): Hash algorithm.
+        algorithm (str): Algorithm name.
+    """
+
+    rs_size: int
+    sha_algo: hashes.HashAlgorithm
+    algorithm: str
+
+    @classmethod
+    def from_key(
+        cls, key: Union[ec.EllipticCurvePublicKey, ec.EllipticCurvePrivateKey]
+    ):
+        return cls.from_curve(key.curve)
+
+    @classmethod
+    def from_curve(cls, curve: ec.EllipticCurve):
+        # ECDSA raw signature has (r||s) format where r,s are two
+        # integers of size 32 bytes for P-256 curve and 48 bytes
+        # for P-384 curve. For P-256 curve, we use SHA256 hash algo,
+        # and for P-384 curve we use SHA384 algo.
+        if isinstance(curve, ec.SECP384R1):
+            return cls(48, hashes.SHA384(), "ES384")
+        else:
+            # default to ES256
+            return cls(32, hashes.SHA256(), "ES256")
+
+
+class EsVerifier(base.Verifier):
+    """Verifies ECDSA cryptographic signatures using public keys.
+
+    Args:
+        public_key (
+                cryptography.hazmat.primitives.asymmetric.ec.EllipticCurvePublicKey):
+            The public key used to verify signatures.
+    """
+
+    def __init__(self, public_key: ec.EllipticCurvePublicKey) -> None:
+        self._pubkey = public_key
+        self._attributes = _ESAttributes.from_key(public_key)
+
+    @_helpers.copy_docstring(base.Verifier)
+    def verify(self, message: bytes, signature: bytes) -> bool:
+        # First convert (r||s) raw signature to ASN1 encoded signature.
+        sig_bytes = _helpers.to_bytes(signature)
+        if len(sig_bytes) != self._attributes.rs_size * 2:
+            return False
+        r = int.from_bytes(sig_bytes[: self._attributes.rs_size], byteorder="big")
+        s = int.from_bytes(sig_bytes[self._attributes.rs_size :], byteorder="big")
+        asn1_sig = encode_dss_signature(r, s)
+
+        message = _helpers.to_bytes(message)
+        try:
+            self._pubkey.verify(asn1_sig, message, ec.ECDSA(self._attributes.sha_algo))
+            return True
+        except (ValueError, cryptography.exceptions.InvalidSignature):
+            return False
+
+    @classmethod
+    def from_string(cls, public_key: Union[str, bytes]) -> "EsVerifier":
+        """Construct a Verifier instance from a public key or public
+        certificate string.
+
+        Args:
+            public_key (Union[str, bytes]): The public key in PEM format or the
+                x509 public key certificate.
+
+        Returns:
+            google.auth.crypt.Verifier: The constructed verifier.
+
+        Raises:
+            ValueError: If the public key can't be parsed.
+        """
+        public_key_data = _helpers.to_bytes(public_key)
+
+        if _CERTIFICATE_MARKER in public_key_data:
+            cert = cryptography.x509.load_pem_x509_certificate(
+                public_key_data, _BACKEND
+            )
+            pubkey = cert.public_key()  # type: Any
+
+        else:
+            pubkey = serialization.load_pem_public_key(public_key_data, _BACKEND)
+
+        if not isinstance(pubkey, ec.EllipticCurvePublicKey):
+            raise TypeError("Expected public key of type EllipticCurvePublicKey")
+
+        return cls(pubkey)
+
+
+class EsSigner(base.Signer, base.FromServiceAccountMixin):
+    """Signs messages with an ECDSA private key.
+
+    Args:
+        private_key (
+                cryptography.hazmat.primitives.asymmetric.ec.EllipticCurvePrivateKey):
+            The private key to sign with.
+        key_id (str): Optional key ID used to identify this private key. This
+            can be useful to associate the private key with its associated
+            public key or certificate.
+    """
+
+    def __init__(
+        self, private_key: ec.EllipticCurvePrivateKey, key_id: Optional[str] = None
+    ) -> None:
+        self._key = private_key
+        self._key_id = key_id
+        self._attributes = _ESAttributes.from_key(private_key)
+
+    @property
+    def algorithm(self) -> str:
+        """Name of the algorithm used to sign messages.
+        Returns:
+            str: The algorithm name.
+        """
+        return self._attributes.algorithm
+
+    @property  # type: ignore
+    @_helpers.copy_docstring(base.Signer)
+    def key_id(self) -> Optional[str]:
+        return self._key_id
+
+    @_helpers.copy_docstring(base.Signer)
+    def sign(self, message: bytes) -> bytes:
+        message = _helpers.to_bytes(message)
+        asn1_signature = self._key.sign(message, ec.ECDSA(self._attributes.sha_algo))
+
+        # Convert ASN1 encoded signature to (r||s) raw signature.
+        (r, s) = decode_dss_signature(asn1_signature)
+        return r.to_bytes(self._attributes.rs_size, byteorder="big") + s.to_bytes(
+            self._attributes.rs_size, byteorder="big"
+        )
+
+    @classmethod
+    def from_string(
+        cls, key: Union[bytes, str], key_id: Optional[str] = None
+    ) -> "EsSigner":
+        """Construct a RSASigner from a private key in PEM format.
+
+        Args:
+            key (Union[bytes, str]): Private key in PEM format.
+            key_id (str): An optional key id used to identify the private key.
+
+        Returns:
+            google.auth.crypt._cryptography_rsa.RSASigner: The
+            constructed signer.
+
+        Raises:
+            ValueError: If ``key`` is not ``bytes`` or ``str`` (unicode).
+            UnicodeDecodeError: If ``key`` is ``bytes`` but cannot be decoded
+                into a UTF-8 ``str``.
+            ValueError: If ``cryptography`` "Could not deserialize key data."
+        """
+        key_bytes = _helpers.to_bytes(key)
+        private_key = serialization.load_pem_private_key(
+            key_bytes, password=None, backend=_BACKEND
+        )
+
+        if not isinstance(private_key, ec.EllipticCurvePrivateKey):
+            raise TypeError("Expected private key of type EllipticCurvePrivateKey")
+
+        return cls(private_key, key_id=key_id)
+
+    def __getstate__(self) -> Dict[str, Any]:
+        """Pickle helper that serializes the _key attribute."""
+        state = self.__dict__.copy()
+        state["_key"] = self._key.private_bytes(
+            encoding=serialization.Encoding.PEM,
+            format=serialization.PrivateFormat.PKCS8,
+            encryption_algorithm=serialization.NoEncryption(),
+        )
+        return state
+
+    def __setstate__(self, state: Dict[str, Any]) -> None:
+        """Pickle helper that deserializes the _key attribute."""
+        state["_key"] = serialization.load_pem_private_key(state["_key"], None)
+        self.__dict__.update(state)

venv/lib/python3.12/site-packages/google/auth/crypt/es256.py

@@ -0,0 +1,45 @@
+# Copyright 2017 Google Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""ECDSA (ES256) verifier and signer that use the ``cryptography`` library.
+"""
+
+from google.auth.crypt.es import EsSigner
+from google.auth.crypt.es import EsVerifier
+
+
+class ES256Verifier(EsVerifier):
+    """Verifies ECDSA cryptographic signatures using public keys.
+
+    Args:
+        public_key (cryptography.hazmat.primitives.asymmetric.ec.ECDSAPublicKey): The public key used to verify
+            signatures.
+    """
+
+    pass
+
+
+class ES256Signer(EsSigner):
+    """Signs messages with an ECDSA private key.
+
+    Args:
+        private_key (
+                cryptography.hazmat.primitives.asymmetric.ec.ECDSAPrivateKey):
+            The private key to sign with.
+        key_id (str): Optional key ID used to identify this private key. This
+            can be useful to associate the private key with its associated
+            public key or certificate.
+    """
+
+    pass

venv/lib/python3.12/site-packages/google/auth/crypt/rsa.py

@@ -0,0 +1,127 @@
+# Copyright 2017 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""
+RSA cryptography signer and verifier.
+
+This file provides a shared wrapper, that defers to _python_rsa or _cryptography_rsa
+for implmentations using different third party libraries
+"""
+
+from cryptography.hazmat.primitives.asymmetric.rsa import RSAPrivateKey
+from cryptography.hazmat.primitives.asymmetric.rsa import RSAPublicKey
+
+from google.auth import _helpers
+from google.auth.crypt import _cryptography_rsa
+from google.auth.crypt import _python_rsa
+from google.auth.crypt import base
+
+RSA_KEY_MODULE_PREFIX = "rsa.key"
+
+
+class RSAVerifier(base.Verifier):
+    """Verifies RSA cryptographic signatures using public keys.
+
+    Args:
+        public_key (Union["rsa.key.PublicKey", cryptography.hazmat.primitives.asymmetric.rsa.RSAPublicKey]):
+            The public key used to verify signatures.
+    Raises:
+        ValueError: if an unrecognized public key is provided
+    """
+
+    def __init__(self, public_key):
+        module_str = public_key.__class__.__module__
+        if isinstance(public_key, RSAPublicKey):
+            impl_lib = _cryptography_rsa
+        elif module_str.startswith(RSA_KEY_MODULE_PREFIX):
+            impl_lib = _python_rsa
+        else:
+            raise ValueError(f"unrecognized public key type: {type(public_key)}")
+        self._impl = impl_lib.RSAVerifier(public_key)
+
+    @_helpers.copy_docstring(base.Verifier)
+    def verify(self, message, signature):
+        return self._impl.verify(message, signature)
+
+    @classmethod
+    def from_string(cls, public_key):
+        """Construct a Verifier instance from a public key or public
+        certificate string.
+
+        Args:
+            public_key (Union[str, bytes]): The public key in PEM format or the
+                x509 public key certificate.
+
+        Returns:
+            google.auth.crypt.Verifier: The constructed verifier.
+
+        Raises:
+            ValueError: If the public_key can't be parsed.
+        """
+        instance = cls.__new__(cls)
+        instance._impl = _cryptography_rsa.RSAVerifier.from_string(public_key)
+        return instance
+
+
+class RSASigner(base.Signer, base.FromServiceAccountMixin):
+    """Signs messages with an RSA private key.
+
+    Args:
+        private_key (Union["rsa.key.PrivateKey", cryptography.hazmat.primitives.asymmetric.rsa.RSAPrivateKey]):
+            The private key to sign with.
+        key_id (str): Optional key ID used to identify this private key. This
+            can be useful to associate the private key with its associated
+            public key or certificate.
+
+    Raises:
+        ValueError: if an unrecognized public key is provided
+    """
+
+    def __init__(self, private_key, key_id=None):
+        module_str = private_key.__class__.__module__
+        if isinstance(private_key, RSAPrivateKey):
+            impl_lib = _cryptography_rsa
+        elif module_str.startswith(RSA_KEY_MODULE_PREFIX):
+            impl_lib = _python_rsa
+        else:
+            raise ValueError(f"unrecognized private key type: {type(private_key)}")
+        self._impl = impl_lib.RSASigner(private_key, key_id=key_id)
+
+    @property  # type: ignore
+    @_helpers.copy_docstring(base.Signer)
+    def key_id(self):
+        return self._impl.key_id
+
+    @_helpers.copy_docstring(base.Signer)
+    def sign(self, message):
+        return self._impl.sign(message)
+
+    @classmethod
+    def from_string(cls, key, key_id=None):
+        """Construct a Signer instance from a private key in PEM format.
+
+        Args:
+            key (str): Private key in PEM format.
+            key_id (str): An optional key id used to identify the private key.
+
+        Returns:
+            google.auth.crypt.Signer: The constructed signer.
+
+        Raises:
+            ValueError: If the key cannot be parsed as PKCS#1 or PKCS#8 in
+                PEM format.
+        """
+        instance = cls.__new__(cls)
+        instance._impl = _cryptography_rsa.RSASigner.from_string(key, key_id=key_id)
+        return instance