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  3. cryptography.hazmat.primitives.serialization.Encoding()

Python cryptography.hazmat.primitives.serialization 模块，Encoding() 实例源码

我们从Python开源项目中，提取了以下24个代码示例，用于说明如何使用cryptography.hazmat.primitives.serialization.Encoding()。

项目：Intranet-Penetration    作者：yuxiaokui    | 项目源码 | 文件源码 
def _public_key_bytes(self, encoding, format, pkcs1_write_func, evp_pkey,
                          cdata):
        if not isinstance(encoding, serialization.Encoding):
            raise TypeError("encoding must be an item from the Encoding enum")

        if not isinstance(format, serialization.PublicFormat):
            raise TypeError(
                "format must be an item from the PublicFormat enum"
            )

        # This is a temporary check until we land DER serialization.
        if encoding is not serialization.Encoding.PEM:
            raise ValueError("Only PEM encoding is supported by this backend")

        if format is serialization.PublicFormat.SubjectPublicKeyInfo:
            write_bio = self._lib.PEM_write_bio_PUBKEY
            key = evp_pkey
        elif format is serialization.PublicFormat.PKCS1:
            write_bio = pkcs1_write_func
            key = cdata

        bio = self._create_mem_bio()
        res = write_bio(bio, key)
        assert res == 1
        return self._read_mem_bio(bio)
项目：MKFQ    作者：maojingios    | 项目源码 | 文件源码 
def _public_key_bytes(self, encoding, format, pkcs1_write_func, evp_pkey,
                          cdata):
        if not isinstance(encoding, serialization.Encoding):
            raise TypeError("encoding must be an item from the Encoding enum")

        if not isinstance(format, serialization.PublicFormat):
            raise TypeError(
                "format must be an item from the PublicFormat enum"
            )

        # This is a temporary check until we land DER serialization.
        if encoding is not serialization.Encoding.PEM:
            raise ValueError("Only PEM encoding is supported by this backend")

        if format is serialization.PublicFormat.SubjectPublicKeyInfo:
            write_bio = self._lib.PEM_write_bio_PUBKEY
            key = evp_pkey
        elif format is serialization.PublicFormat.PKCS1:
            write_bio = pkcs1_write_func
            key = cdata

        bio = self._create_mem_bio()
        res = write_bio(bio, key)
        assert res == 1
        return self._read_mem_bio(bio)
项目：xxNet    作者：drzorm    | 项目源码 | 文件源码 
def _public_key_bytes(self, encoding, format, pkcs1_write_func, evp_pkey,
                          cdata):
        if not isinstance(encoding, serialization.Encoding):
            raise TypeError("encoding must be an item from the Encoding enum")

        if not isinstance(format, serialization.PublicFormat):
            raise TypeError(
                "format must be an item from the PublicFormat enum"
            )

        # This is a temporary check until we land DER serialization.
        if encoding is not serialization.Encoding.PEM:
            raise ValueError("Only PEM encoding is supported by this backend")

        if format is serialization.PublicFormat.SubjectPublicKeyInfo:
            write_bio = self._lib.PEM_write_bio_PUBKEY
            key = evp_pkey
        elif format is serialization.PublicFormat.PKCS1:
            write_bio = pkcs1_write_func
            key = cdata

        bio = self._create_mem_bio()
        res = write_bio(bio, key)
        assert res == 1
        return self._read_mem_bio(bio)
项目：Docker-XX-Net    作者：kuanghy    | 项目源码 | 文件源码 
def _public_key_bytes(self, encoding, format, pkcs1_write_func, evp_pkey,
                          cdata):
        if not isinstance(encoding, serialization.Encoding):
            raise TypeError("encoding must be an item from the Encoding enum")

        if not isinstance(format, serialization.PublicFormat):
            raise TypeError(
                "format must be an item from the PublicFormat enum"
            )

        # This is a temporary check until we land DER serialization.
        if encoding is not serialization.Encoding.PEM:
            raise ValueError("Only PEM encoding is supported by this backend")

        if format is serialization.PublicFormat.SubjectPublicKeyInfo:
            write_bio = self._lib.PEM_write_bio_PUBKEY
            key = evp_pkey
        elif format is serialization.PublicFormat.PKCS1:
            write_bio = pkcs1_write_func
            key = cdata

        bio = self._create_mem_bio()
        res = write_bio(bio, key)
        assert res == 1
        return self._read_mem_bio(bio)
项目：noc-orchestrator    作者：DirceuSilvaLabs    | 项目源码 | 文件源码 
def _public_key_bytes(self, encoding, format, evp_pkey, cdata):
        if not isinstance(encoding, serialization.Encoding):
            raise TypeError("encoding must be an item from the Encoding enum")

        if format is serialization.PublicFormat.SubjectPublicKeyInfo:
            if encoding is serialization.Encoding.PEM:
                write_bio = self._lib.PEM_write_bio_PUBKEY
            else:
                assert encoding is serialization.Encoding.DER
                write_bio = self._lib.i2d_PUBKEY_bio

            key = evp_pkey
        elif format is serialization.PublicFormat.PKCS1:
            # Only RSA is supported here.
            assert self._lib.Cryptography_EVP_PKEY_id(
                evp_pkey
            ) == self._lib.EVP_PKEY_RSA
            if encoding is serialization.Encoding.PEM:
                write_bio = self._lib.PEM_write_bio_RSAPublicKey
            else:
                assert encoding is serialization.Encoding.DER
                write_bio = self._lib.i2d_RSAPublicKey_bio

            key = cdata
        else:
            raise TypeError(
                "format must be an item from the PublicFormat enum"
            )

        bio = self._create_mem_bio_gc()
        res = write_bio(bio, key)
        self.openssl_assert(res == 1)
        return self._read_mem_bio(bio)
项目：noc-orchestrator    作者：DirceuSilvaLabs    | 项目源码 | 文件源码 
def _public_key_bytes(self, encoding, format, evp_pkey, cdata):
        if not isinstance(encoding, serialization.Encoding):
            raise TypeError("encoding must be an item from the Encoding enum")

        if format is serialization.PublicFormat.SubjectPublicKeyInfo:
            if encoding is serialization.Encoding.PEM:
                write_bio = self._lib.PEM_write_bio_PUBKEY
            else:
                assert encoding is serialization.Encoding.DER
                write_bio = self._lib.i2d_PUBKEY_bio

            key = evp_pkey
        elif format is serialization.PublicFormat.PKCS1:
            # Only RSA is supported here.
            assert self._lib.Cryptography_EVP_PKEY_id(
                evp_pkey
            ) == self._lib.EVP_PKEY_RSA
            if encoding is serialization.Encoding.PEM:
                write_bio = self._lib.PEM_write_bio_RSAPublicKey
            else:
                assert encoding is serialization.Encoding.DER
                write_bio = self._lib.i2d_RSAPublicKey_bio

            key = cdata
        else:
            raise TypeError(
                "format must be an item from the PublicFormat enum"
            )

        bio = self._create_mem_bio_gc()
        res = write_bio(bio, key)
        self.openssl_assert(res == 1)
        return self._read_mem_bio(bio)
项目：Intranet-Penetration    作者：yuxiaokui    | 项目源码 | 文件源码 
def _public_key_bytes(self, encoding, format, evp_pkey, cdata):
        if not isinstance(encoding, serialization.Encoding):
            raise TypeError("encoding must be an item from the Encoding enum")

        if format is serialization.PublicFormat.SubjectPublicKeyInfo:
            if encoding is serialization.Encoding.PEM:
                write_bio = self._lib.PEM_write_bio_PUBKEY
            else:
                assert encoding is serialization.Encoding.DER
                write_bio = self._lib.i2d_PUBKEY_bio

            key = evp_pkey
        elif format is serialization.PublicFormat.PKCS1:
            # Only RSA is supported here.
            assert self._lib.Cryptography_EVP_PKEY_id(
                evp_pkey
            ) == self._lib.EVP_PKEY_RSA
            if encoding is serialization.Encoding.PEM:
                write_bio = self._lib.PEM_write_bio_RSAPublicKey
            else:
                assert encoding is serialization.Encoding.DER
                write_bio = self._lib.i2d_RSAPublicKey_bio

            key = cdata
        else:
            raise TypeError(
                "format must be an item from the PublicFormat enum"
            )

        bio = self._create_mem_bio_gc()
        res = write_bio(bio, key)
        self.openssl_assert(res == 1)
        return self._read_mem_bio(bio)
项目：Intranet-Penetration    作者：yuxiaokui    | 项目源码 | 文件源码 
def _public_key_bytes(self, encoding, format, evp_pkey, cdata):
        if not isinstance(encoding, serialization.Encoding):
            raise TypeError("encoding must be an item from the Encoding enum")

        if format is serialization.PublicFormat.SubjectPublicKeyInfo:
            if encoding is serialization.Encoding.PEM:
                write_bio = self._lib.PEM_write_bio_PUBKEY
            else:
                assert encoding is serialization.Encoding.DER
                write_bio = self._lib.i2d_PUBKEY_bio

            key = evp_pkey
        elif format is serialization.PublicFormat.PKCS1:
            # Only RSA is supported here.
            assert self._lib.Cryptography_EVP_PKEY_id(
                evp_pkey
            ) == self._lib.EVP_PKEY_RSA
            if encoding is serialization.Encoding.PEM:
                write_bio = self._lib.PEM_write_bio_RSAPublicKey
            else:
                assert encoding is serialization.Encoding.DER
                write_bio = self._lib.i2d_RSAPublicKey_bio

            key = cdata
        else:
            raise TypeError(
                "format must be an item from the PublicFormat enum"
            )

        bio = self._create_mem_bio_gc()
        res = write_bio(bio, key)
        self.openssl_assert(res == 1)
        return self._read_mem_bio(bio)
项目：MKFQ    作者：maojingios    | 项目源码 | 文件源码 
def _public_key_bytes(self, encoding, format, evp_pkey, cdata):
        if not isinstance(encoding, serialization.Encoding):
            raise TypeError("encoding must be an item from the Encoding enum")

        if format is serialization.PublicFormat.SubjectPublicKeyInfo:
            if encoding is serialization.Encoding.PEM:
                write_bio = self._lib.PEM_write_bio_PUBKEY
            else:
                assert encoding is serialization.Encoding.DER
                write_bio = self._lib.i2d_PUBKEY_bio

            key = evp_pkey
        elif format is serialization.PublicFormat.PKCS1:
            # Only RSA is supported here.
            assert self._lib.Cryptography_EVP_PKEY_id(
                evp_pkey
            ) == self._lib.EVP_PKEY_RSA
            if encoding is serialization.Encoding.PEM:
                write_bio = self._lib.PEM_write_bio_RSAPublicKey
            else:
                assert encoding is serialization.Encoding.DER
                write_bio = self._lib.i2d_RSAPublicKey_bio

            key = cdata
        else:
            raise TypeError(
                "format must be an item from the PublicFormat enum"
            )

        bio = self._create_mem_bio_gc()
        res = write_bio(bio, key)
        self.openssl_assert(res == 1)
        return self._read_mem_bio(bio)
项目：MKFQ    作者：maojingios    | 项目源码 | 文件源码 
def _public_key_bytes(self, encoding, format, evp_pkey, cdata):
        if not isinstance(encoding, serialization.Encoding):
            raise TypeError("encoding must be an item from the Encoding enum")

        if format is serialization.PublicFormat.SubjectPublicKeyInfo:
            if encoding is serialization.Encoding.PEM:
                write_bio = self._lib.PEM_write_bio_PUBKEY
            else:
                assert encoding is serialization.Encoding.DER
                write_bio = self._lib.i2d_PUBKEY_bio

            key = evp_pkey
        elif format is serialization.PublicFormat.PKCS1:
            # Only RSA is supported here.
            assert self._lib.Cryptography_EVP_PKEY_id(
                evp_pkey
            ) == self._lib.EVP_PKEY_RSA
            if encoding is serialization.Encoding.PEM:
                write_bio = self._lib.PEM_write_bio_RSAPublicKey
            else:
                assert encoding is serialization.Encoding.DER
                write_bio = self._lib.i2d_RSAPublicKey_bio

            key = cdata
        else:
            raise TypeError(
                "format must be an item from the PublicFormat enum"
            )

        bio = self._create_mem_bio_gc()
        res = write_bio(bio, key)
        self.openssl_assert(res == 1)
        return self._read_mem_bio(bio)
项目：OneClickDTU    作者：satwikkansal    | 项目源码 | 文件源码 
def _public_key_bytes(self, encoding, format, evp_pkey, cdata):
        if not isinstance(encoding, serialization.Encoding):
            raise TypeError("encoding must be an item from the Encoding enum")

        if format is serialization.PublicFormat.SubjectPublicKeyInfo:
            if encoding is serialization.Encoding.PEM:
                write_bio = self._lib.PEM_write_bio_PUBKEY
            else:
                assert encoding is serialization.Encoding.DER
                write_bio = self._lib.i2d_PUBKEY_bio

            key = evp_pkey
        elif format is serialization.PublicFormat.PKCS1:
            # Only RSA is supported here.
            assert evp_pkey.type == self._lib.EVP_PKEY_RSA
            if encoding is serialization.Encoding.PEM:
                write_bio = self._lib.PEM_write_bio_RSAPublicKey
            else:
                assert encoding is serialization.Encoding.DER
                write_bio = self._lib.i2d_RSAPublicKey_bio

            key = cdata
        else:
            raise TypeError(
                "format must be an item from the PublicFormat enum"
            )

        bio = self._create_mem_bio()
        res = write_bio(bio, key)
        self.openssl_assert(res == 1)
        return self._read_mem_bio(bio)
项目：xxNet    作者：drzorm    | 项目源码 | 文件源码 
def _public_key_bytes(self, encoding, format, evp_pkey, cdata):
        if not isinstance(encoding, serialization.Encoding):
            raise TypeError("encoding must be an item from the Encoding enum")

        if format is serialization.PublicFormat.SubjectPublicKeyInfo:
            if encoding is serialization.Encoding.PEM:
                write_bio = self._lib.PEM_write_bio_PUBKEY
            else:
                assert encoding is serialization.Encoding.DER
                write_bio = self._lib.i2d_PUBKEY_bio

            key = evp_pkey
        elif format is serialization.PublicFormat.PKCS1:
            # Only RSA is supported here.
            assert self._lib.Cryptography_EVP_PKEY_id(
                evp_pkey
            ) == self._lib.EVP_PKEY_RSA
            if encoding is serialization.Encoding.PEM:
                write_bio = self._lib.PEM_write_bio_RSAPublicKey
            else:
                assert encoding is serialization.Encoding.DER
                write_bio = self._lib.i2d_RSAPublicKey_bio

            key = cdata
        else:
            raise TypeError(
                "format must be an item from the PublicFormat enum"
            )

        bio = self._create_mem_bio_gc()
        res = write_bio(bio, key)
        self.openssl_assert(res == 1)
        return self._read_mem_bio(bio)
项目：xxNet    作者：drzorm    | 项目源码 | 文件源码 
def _public_key_bytes(self, encoding, format, evp_pkey, cdata):
        if not isinstance(encoding, serialization.Encoding):
            raise TypeError("encoding must be an item from the Encoding enum")

        if format is serialization.PublicFormat.SubjectPublicKeyInfo:
            if encoding is serialization.Encoding.PEM:
                write_bio = self._lib.PEM_write_bio_PUBKEY
            else:
                assert encoding is serialization.Encoding.DER
                write_bio = self._lib.i2d_PUBKEY_bio

            key = evp_pkey
        elif format is serialization.PublicFormat.PKCS1:
            # Only RSA is supported here.
            assert self._lib.Cryptography_EVP_PKEY_id(
                evp_pkey
            ) == self._lib.EVP_PKEY_RSA
            if encoding is serialization.Encoding.PEM:
                write_bio = self._lib.PEM_write_bio_RSAPublicKey
            else:
                assert encoding is serialization.Encoding.DER
                write_bio = self._lib.i2d_RSAPublicKey_bio

            key = cdata
        else:
            raise TypeError(
                "format must be an item from the PublicFormat enum"
            )

        bio = self._create_mem_bio_gc()
        res = write_bio(bio, key)
        self.openssl_assert(res == 1)
        return self._read_mem_bio(bio)
项目：quickstart-git2s3    作者：aws-quickstart    | 项目源码 | 文件源码 
def _parameter_bytes(self, encoding, format, cdata):
        if encoding is serialization.Encoding.OpenSSH:
            raise TypeError(
                "OpenSSH encoding is not supported"
            )

        # Only DH is supported here currently.
        q = self._ffi.new("BIGNUM **")
        self._lib.DH_get0_pqg(cdata,
                              self._ffi.NULL,
                              q,
                              self._ffi.NULL)
        if encoding is serialization.Encoding.PEM:
            if q[0] != self._ffi.NULL:
                write_bio = self._lib.PEM_write_bio_DHxparams
            else:
                write_bio = self._lib.PEM_write_bio_DHparams
        elif encoding is serialization.Encoding.DER:
            if q[0] != self._ffi.NULL:
                write_bio = self._lib.Cryptography_i2d_DHxparams_bio
            else:
                write_bio = self._lib.i2d_DHparams_bio
        else:
            raise TypeError("encoding must be an item from the Encoding enum")

        bio = self._create_mem_bio_gc()
        res = write_bio(bio, cdata)
        self.openssl_assert(res == 1)
        return self._read_mem_bio(bio)
项目：Docker-XX-Net    作者：kuanghy    | 项目源码 | 文件源码 
def _public_key_bytes(self, encoding, format, evp_pkey, cdata):
        if not isinstance(encoding, serialization.Encoding):
            raise TypeError("encoding must be an item from the Encoding enum")

        if format is serialization.PublicFormat.SubjectPublicKeyInfo:
            if encoding is serialization.Encoding.PEM:
                write_bio = self._lib.PEM_write_bio_PUBKEY
            else:
                assert encoding is serialization.Encoding.DER
                write_bio = self._lib.i2d_PUBKEY_bio

            key = evp_pkey
        elif format is serialization.PublicFormat.PKCS1:
            # Only RSA is supported here.
            assert self._lib.Cryptography_EVP_PKEY_id(
                evp_pkey
            ) == self._lib.EVP_PKEY_RSA
            if encoding is serialization.Encoding.PEM:
                write_bio = self._lib.PEM_write_bio_RSAPublicKey
            else:
                assert encoding is serialization.Encoding.DER
                write_bio = self._lib.i2d_RSAPublicKey_bio

            key = cdata
        else:
            raise TypeError(
                "format must be an item from the PublicFormat enum"
            )

        bio = self._create_mem_bio_gc()
        res = write_bio(bio, key)
        self.openssl_assert(res == 1)
        return self._read_mem_bio(bio)
项目：PyQYT    作者：collinsctk    | 项目源码 | 文件源码 
def _public_key_bytes(self, encoding, format, evp_pkey, cdata):
        if not isinstance(encoding, serialization.Encoding):
            raise TypeError("encoding must be an item from the Encoding enum")

        if format is serialization.PublicFormat.SubjectPublicKeyInfo:
            if encoding is serialization.Encoding.PEM:
                write_bio = self._lib.PEM_write_bio_PUBKEY
            else:
                assert encoding is serialization.Encoding.DER
                write_bio = self._lib.i2d_PUBKEY_bio

            key = evp_pkey
        elif format is serialization.PublicFormat.PKCS1:
            # Only RSA is supported here.
            assert self._lib.Cryptography_EVP_PKEY_id(
                evp_pkey
            ) == self._lib.EVP_PKEY_RSA
            if encoding is serialization.Encoding.PEM:
                write_bio = self._lib.PEM_write_bio_RSAPublicKey
            else:
                assert encoding is serialization.Encoding.DER
                write_bio = self._lib.i2d_RSAPublicKey_bio

            key = cdata
        else:
            raise TypeError(
                "format must be an item from the PublicFormat enum"
            )

        bio = self._create_mem_bio_gc()
        res = write_bio(bio, key)
        self.openssl_assert(res == 1)
        return self._read_mem_bio(bio)
项目：aws-cfn-plex    作者：lordmuffin    | 项目源码 | 文件源码 
def _public_key_bytes(self, encoding, format, key, evp_pkey, cdata):
        if not isinstance(encoding, serialization.Encoding):
            raise TypeError("encoding must be an item from the Encoding enum")

        if (
            format is serialization.PublicFormat.OpenSSH or
            encoding is serialization.Encoding.OpenSSH
        ):
            if (
                format is not serialization.PublicFormat.OpenSSH or
                encoding is not serialization.Encoding.OpenSSH
            ):
                raise ValueError(
                    "OpenSSH format must be used with OpenSSH encoding"
                )
            return self._openssh_public_key_bytes(key)
        elif format is serialization.PublicFormat.SubjectPublicKeyInfo:
            if encoding is serialization.Encoding.PEM:
                write_bio = self._lib.PEM_write_bio_PUBKEY
            else:
                assert encoding is serialization.Encoding.DER
                write_bio = self._lib.i2d_PUBKEY_bio

            key = evp_pkey
        elif format is serialization.PublicFormat.PKCS1:
            # Only RSA is supported here.
            assert self._lib.EVP_PKEY_id(evp_pkey) == self._lib.EVP_PKEY_RSA
            if encoding is serialization.Encoding.PEM:
                write_bio = self._lib.PEM_write_bio_RSAPublicKey
            else:
                assert encoding is serialization.Encoding.DER
                write_bio = self._lib.i2d_RSAPublicKey_bio

            key = cdata
        else:
            raise TypeError(
                "format must be an item from the PublicFormat enum"
            )

        bio = self._create_mem_bio_gc()
        res = write_bio(bio, key)
        self.openssl_assert(res == 1)
        return self._read_mem_bio(bio)
项目：Intranet-Penetration    作者：yuxiaokui    | 项目源码 | 文件源码 
def _private_key_bytes(self, encoding, format, encryption_algorithm,
                           traditional_write_func, evp_pkey, cdata):
        if not isinstance(encoding, serialization.Encoding):
            raise TypeError("encoding must be an item from the Encoding enum")

        if not isinstance(format, serialization.PrivateFormat):
            raise TypeError(
                "format must be an item from the PrivateFormat enum"
            )

        # This is a temporary check until we land DER serialization.
        if encoding is not serialization.Encoding.PEM:
            raise ValueError("Only PEM encoding is supported by this backend")

        if format is serialization.PrivateFormat.PKCS8:
            write_bio = self._lib.PEM_write_bio_PKCS8PrivateKey
            key = evp_pkey
        elif format is serialization.PrivateFormat.TraditionalOpenSSL:
            write_bio = traditional_write_func
            key = cdata

        if not isinstance(encryption_algorithm,
                          serialization.KeySerializationEncryption):
            raise TypeError(
                "Encryption algorithm must be a KeySerializationEncryption "
                "instance"
            )

        if isinstance(encryption_algorithm, serialization.NoEncryption):
            password = b""
            passlen = 0
            evp_cipher = self._ffi.NULL
        elif isinstance(encryption_algorithm,
                        serialization.BestAvailableEncryption):
            # This is a curated value that we will update over time.
            evp_cipher = self._lib.EVP_get_cipherbyname(
                b"aes-256-cbc"
            )
            password = encryption_algorithm.password
            passlen = len(password)
            if passlen > 1023:
                raise ValueError(
                    "Passwords longer than 1023 bytes are not supported by "
                    "this backend"
                )
        else:
            raise ValueError("Unsupported encryption type")

        bio = self._create_mem_bio()
        res = write_bio(
            bio,
            key,
            evp_cipher,
            password,
            passlen,
            self._ffi.NULL,
            self._ffi.NULL
        )
        assert res == 1
        return self._read_mem_bio(bio)
项目：MKFQ    作者：maojingios    | 项目源码 | 文件源码 
def _private_key_bytes(self, encoding, format, encryption_algorithm,
                           traditional_write_func, evp_pkey, cdata):
        if not isinstance(encoding, serialization.Encoding):
            raise TypeError("encoding must be an item from the Encoding enum")

        if not isinstance(format, serialization.PrivateFormat):
            raise TypeError(
                "format must be an item from the PrivateFormat enum"
            )

        # This is a temporary check until we land DER serialization.
        if encoding is not serialization.Encoding.PEM:
            raise ValueError("Only PEM encoding is supported by this backend")

        if format is serialization.PrivateFormat.PKCS8:
            write_bio = self._lib.PEM_write_bio_PKCS8PrivateKey
            key = evp_pkey
        elif format is serialization.PrivateFormat.TraditionalOpenSSL:
            write_bio = traditional_write_func
            key = cdata

        if not isinstance(encryption_algorithm,
                          serialization.KeySerializationEncryption):
            raise TypeError(
                "Encryption algorithm must be a KeySerializationEncryption "
                "instance"
            )

        if isinstance(encryption_algorithm, serialization.NoEncryption):
            password = b""
            passlen = 0
            evp_cipher = self._ffi.NULL
        elif isinstance(encryption_algorithm,
                        serialization.BestAvailableEncryption):
            # This is a curated value that we will update over time.
            evp_cipher = self._lib.EVP_get_cipherbyname(
                b"aes-256-cbc"
            )
            password = encryption_algorithm.password
            passlen = len(password)
            if passlen > 1023:
                raise ValueError(
                    "Passwords longer than 1023 bytes are not supported by "
                    "this backend"
                )
        else:
            raise ValueError("Unsupported encryption type")

        bio = self._create_mem_bio()
        res = write_bio(
            bio,
            key,
            evp_cipher,
            password,
            passlen,
            self._ffi.NULL,
            self._ffi.NULL
        )
        assert res == 1
        return self._read_mem_bio(bio)
项目：xxNet    作者：drzorm    | 项目源码 | 文件源码 
def _private_key_bytes(self, encoding, format, encryption_algorithm,
                           traditional_write_func, evp_pkey, cdata):
        if not isinstance(encoding, serialization.Encoding):
            raise TypeError("encoding must be an item from the Encoding enum")

        if not isinstance(format, serialization.PrivateFormat):
            raise TypeError(
                "format must be an item from the PrivateFormat enum"
            )

        # This is a temporary check until we land DER serialization.
        if encoding is not serialization.Encoding.PEM:
            raise ValueError("Only PEM encoding is supported by this backend")

        if format is serialization.PrivateFormat.PKCS8:
            write_bio = self._lib.PEM_write_bio_PKCS8PrivateKey
            key = evp_pkey
        elif format is serialization.PrivateFormat.TraditionalOpenSSL:
            write_bio = traditional_write_func
            key = cdata

        if not isinstance(encryption_algorithm,
                          serialization.KeySerializationEncryption):
            raise TypeError(
                "Encryption algorithm must be a KeySerializationEncryption "
                "instance"
            )

        if isinstance(encryption_algorithm, serialization.NoEncryption):
            password = b""
            passlen = 0
            evp_cipher = self._ffi.NULL
        elif isinstance(encryption_algorithm,
                        serialization.BestAvailableEncryption):
            # This is a curated value that we will update over time.
            evp_cipher = self._lib.EVP_get_cipherbyname(
                b"aes-256-cbc"
            )
            password = encryption_algorithm.password
            passlen = len(password)
            if passlen > 1023:
                raise ValueError(
                    "Passwords longer than 1023 bytes are not supported by "
                    "this backend"
                )
        else:
            raise ValueError("Unsupported encryption type")

        bio = self._create_mem_bio()
        res = write_bio(
            bio,
            key,
            evp_cipher,
            password,
            passlen,
            self._ffi.NULL,
            self._ffi.NULL
        )
        assert res == 1
        return self._read_mem_bio(bio)
项目：slack_scholar    作者：xLeitix    | 项目源码 | 文件源码 
def _public_key_bytes(self, encoding, format, key, evp_pkey, cdata):
        if not isinstance(encoding, serialization.Encoding):
            raise TypeError("encoding must be an item from the Encoding enum")

        if (
            format is serialization.PublicFormat.OpenSSH or
            encoding is serialization.Encoding.OpenSSH
        ):
            if (
                format is not serialization.PublicFormat.OpenSSH or
                encoding is not serialization.Encoding.OpenSSH
            ):
                raise ValueError(
                    "OpenSSH format must be used with OpenSSH encoding"
                )
            return self._openssh_public_key_bytes(key)
        elif format is serialization.PublicFormat.SubjectPublicKeyInfo:
            if encoding is serialization.Encoding.PEM:
                write_bio = self._lib.PEM_write_bio_PUBKEY
            else:
                assert encoding is serialization.Encoding.DER
                write_bio = self._lib.i2d_PUBKEY_bio

            key = evp_pkey
        elif format is serialization.PublicFormat.PKCS1:
            # Only RSA is supported here.
            assert self._lib.Cryptography_EVP_PKEY_id(
                evp_pkey
            ) == self._lib.EVP_PKEY_RSA
            if encoding is serialization.Encoding.PEM:
                write_bio = self._lib.PEM_write_bio_RSAPublicKey
            else:
                assert encoding is serialization.Encoding.DER
                write_bio = self._lib.i2d_RSAPublicKey_bio

            key = cdata
        else:
            raise TypeError(
                "format must be an item from the PublicFormat enum"
            )

        bio = self._create_mem_bio_gc()
        res = write_bio(bio, key)
        self.openssl_assert(res == 1)
        return self._read_mem_bio(bio)
项目：RemoteTree    作者：deNULL    | 项目源码 | 文件源码 
def _public_key_bytes(self, encoding, format, key, evp_pkey, cdata):
        if not isinstance(encoding, serialization.Encoding):
            raise TypeError("encoding must be an item from the Encoding enum")

        if (
            format is serialization.PublicFormat.OpenSSH or
            encoding is serialization.Encoding.OpenSSH
        ):
            if (
                format is not serialization.PublicFormat.OpenSSH or
                encoding is not serialization.Encoding.OpenSSH
            ):
                raise ValueError(
                    "OpenSSH format must be used with OpenSSH encoding"
                )
            return self._openssh_public_key_bytes(key)
        elif format is serialization.PublicFormat.SubjectPublicKeyInfo:
            if encoding is serialization.Encoding.PEM:
                write_bio = self._lib.PEM_write_bio_PUBKEY
            else:
                assert encoding is serialization.Encoding.DER
                write_bio = self._lib.i2d_PUBKEY_bio

            key = evp_pkey
        elif format is serialization.PublicFormat.PKCS1:
            # Only RSA is supported here.
            assert self._lib.EVP_PKEY_id(evp_pkey) == self._lib.EVP_PKEY_RSA
            if encoding is serialization.Encoding.PEM:
                write_bio = self._lib.PEM_write_bio_RSAPublicKey
            else:
                assert encoding is serialization.Encoding.DER
                write_bio = self._lib.i2d_RSAPublicKey_bio

            key = cdata
        else:
            raise TypeError(
                "format must be an item from the PublicFormat enum"
            )

        bio = self._create_mem_bio_gc()
        res = write_bio(bio, key)
        self.openssl_assert(res == 1)
        return self._read_mem_bio(bio)
项目：quickstart-git2s3    作者：aws-quickstart    | 项目源码 | 文件源码 
def _public_key_bytes(self, encoding, format, key, evp_pkey, cdata):
        if not isinstance(encoding, serialization.Encoding):
            raise TypeError("encoding must be an item from the Encoding enum")

        if (
            format is serialization.PublicFormat.OpenSSH or
            encoding is serialization.Encoding.OpenSSH
        ):
            if (
                format is not serialization.PublicFormat.OpenSSH or
                encoding is not serialization.Encoding.OpenSSH
            ):
                raise ValueError(
                    "OpenSSH format must be used with OpenSSH encoding"
                )
            return self._openssh_public_key_bytes(key)
        elif format is serialization.PublicFormat.SubjectPublicKeyInfo:
            if encoding is serialization.Encoding.PEM:
                write_bio = self._lib.PEM_write_bio_PUBKEY
            else:
                assert encoding is serialization.Encoding.DER
                write_bio = self._lib.i2d_PUBKEY_bio

            key = evp_pkey
        elif format is serialization.PublicFormat.PKCS1:
            # Only RSA is supported here.
            assert self._lib.EVP_PKEY_id(evp_pkey) == self._lib.EVP_PKEY_RSA
            if encoding is serialization.Encoding.PEM:
                write_bio = self._lib.PEM_write_bio_RSAPublicKey
            else:
                assert encoding is serialization.Encoding.DER
                write_bio = self._lib.i2d_RSAPublicKey_bio

            key = cdata
        else:
            raise TypeError(
                "format must be an item from the PublicFormat enum"
            )

        bio = self._create_mem_bio_gc()
        res = write_bio(bio, key)
        self.openssl_assert(res == 1)
        return self._read_mem_bio(bio)
项目：Docker-XX-Net    作者：kuanghy    | 项目源码 | 文件源码 
def _private_key_bytes(self, encoding, format, encryption_algorithm,
                           traditional_write_func, evp_pkey, cdata):
        if not isinstance(encoding, serialization.Encoding):
            raise TypeError("encoding must be an item from the Encoding enum")

        if not isinstance(format, serialization.PrivateFormat):
            raise TypeError(
                "format must be an item from the PrivateFormat enum"
            )

        # This is a temporary check until we land DER serialization.
        if encoding is not serialization.Encoding.PEM:
            raise ValueError("Only PEM encoding is supported by this backend")

        if format is serialization.PrivateFormat.PKCS8:
            write_bio = self._lib.PEM_write_bio_PKCS8PrivateKey
            key = evp_pkey
        elif format is serialization.PrivateFormat.TraditionalOpenSSL:
            write_bio = traditional_write_func
            key = cdata

        if not isinstance(encryption_algorithm,
                          serialization.KeySerializationEncryption):
            raise TypeError(
                "Encryption algorithm must be a KeySerializationEncryption "
                "instance"
            )

        if isinstance(encryption_algorithm, serialization.NoEncryption):
            password = b""
            passlen = 0
            evp_cipher = self._ffi.NULL
        elif isinstance(encryption_algorithm,
                        serialization.BestAvailableEncryption):
            # This is a curated value that we will update over time.
            evp_cipher = self._lib.EVP_get_cipherbyname(
                b"aes-256-cbc"
            )
            password = encryption_algorithm.password
            passlen = len(password)
            if passlen > 1023:
                raise ValueError(
                    "Passwords longer than 1023 bytes are not supported by "
                    "this backend"
                )
        else:
            raise ValueError("Unsupported encryption type")

        bio = self._create_mem_bio()
        res = write_bio(
            bio,
            key,
            evp_cipher,
            password,
            passlen,
            self._ffi.NULL,
            self._ffi.NULL
        )
        assert res == 1
        return self._read_mem_bio(bio)