Python cryptography.hazmat.primitives.serialization.NoEncryption() Examples

def generate_ssh_keypair():
    key = rsa.generate_private_key(
        backend=crypto_default_backend(),
        public_exponent=65537,
        key_size=2048
    )
    private_key = key.private_bytes(
        crypto_serialization.Encoding.PEM,
        crypto_serialization.PrivateFormat.TraditionalOpenSSL,
        crypto_serialization.NoEncryption()
    ).decode("utf-8")
    public_key = key.public_key().public_bytes(
        crypto_serialization.Encoding.OpenSSH,
        crypto_serialization.PublicFormat.OpenSSH
    ).decode("utf-8")
    return (public_key, private_key) 

def generate_ssh_keypair() -> Tuple[str, str]:
    '''
    Generate RSA keypair for SSH/SFTP connection.
    '''
    key = rsa.generate_private_key(
        backend=crypto_default_backend(),
        public_exponent=65537,
        key_size=2048
    )
    private_key = key.private_bytes(
        crypto_serialization.Encoding.PEM,
        crypto_serialization.PrivateFormat.TraditionalOpenSSL,
        crypto_serialization.NoEncryption()
    ).decode("utf-8")
    public_key = key.public_key().public_bytes(
        crypto_serialization.Encoding.OpenSSH,
        crypto_serialization.PublicFormat.OpenSSH
    ).decode("utf-8")
    return (public_key, private_key) 

def create_key(key_path: str) -> rsa.RSAPrivateKey:

    key = rsa.generate_private_key(
        public_exponent=65537, key_size=2048, backend=default_backend()
    )

    with open(key_path, "wb") as filehandle:
        filehandle.write(
            key.private_bytes(
                encoding=serialization.Encoding.PEM,
                format=serialization.PrivateFormat.TraditionalOpenSSL,
                encryption_algorithm=serialization.NoEncryption(),
            )
        )

    return key 

def create_key(self):
        key = rsa.generate_private_key(
            backend=crypto_default_backend(),
            public_exponent=65537,
            key_size=self.get("KeySize"),
        )
        private_key = key.private_bytes(
            crypto_serialization.Encoding.PEM,
            self.key_format,
            crypto_serialization.NoEncryption(),
        )

        public_key = key.public_key().public_bytes(
            crypto_serialization.Encoding.OpenSSH,
            crypto_serialization.PublicFormat.OpenSSH,
        )
        return private_key.decode("ascii"), public_key.decode("ascii") 

def generate_keypair(rsa_keysize=2048):
    """
    This creates an RSA key pair

    # TODO: The HSM should be used.

    The public key and private keys are returned in PKCS#1 Format.

    :return: tuple of (pubkey, privkey)
    """
    private_key = rsa.generate_private_key(
        public_exponent=65537,
        key_size=rsa_keysize,
        backend=default_backend()
        )
    public_key = private_key.public_key()
    pem_priv = to_unicode(private_key.private_bytes(
        encoding=serialization.Encoding.PEM,
        format=serialization.PrivateFormat.TraditionalOpenSSL,
        encryption_algorithm=serialization.NoEncryption()))
    pem_pub = to_unicode(public_key.public_bytes(
        encoding=serialization.Encoding.PEM,
        format=serialization.PublicFormat.PKCS1))
    return pem_pub, pem_priv 

def load(self, issuer):
        if not self._data_uri.startswith('data:application/pkcs8;kid='):
            raise PrivateKeyRetrieverException('Unrecognised data uri format.')
        splitted = self._data_uri.split(';')
        key_identifier = KeyIdentifier(unquote_plus(
            splitted[1][len('kid='):]))
        key_data = base64.b64decode(splitted[-1].split(',')[-1])
        key = serialization.load_der_private_key(
            key_data,
            password=None,
            backend=cryptography.hazmat.backends.default_backend())
        private_key_pem = key.private_bytes(
            encoding=serialization.Encoding.PEM,
            format=serialization.PrivateFormat.TraditionalOpenSSL,
            encryption_algorithm=serialization.NoEncryption()
        )
        return key_identifier, private_key_pem.decode('utf-8') 

def get_key(self):
        response = self.ssm.get_parameter(
            Name=self.name_from_physical_resource_id(), WithDecryption=True
        )
        private_key = response["Parameter"]["Value"].encode("ascii")

        key = crypto_serialization.load_pem_private_key(
            private_key, password=None, backend=crypto_default_backend()
        )

        private_key = key.private_bytes(
            crypto_serialization.Encoding.PEM,
            self.key_format,
            crypto_serialization.NoEncryption(),
        )

        public_key = key.public_key().public_bytes(
            crypto_serialization.Encoding.OpenSSH,
            crypto_serialization.PublicFormat.OpenSSH,
        )
        return private_key.decode("ascii"), public_key.decode("ascii") 

def generateCpiRsaKeys():
  """Generate a private/public RSA 2048 key pair.

  Returns:
    A tuple (private_key, public key) as PEM string encoded.
  """
  rsa_key = rsa.generate_private_key(
      public_exponent=65537, key_size=2048, backend=default_backend())
  rsa_private_key = rsa_key.private_bytes(
      encoding=serialization.Encoding.PEM,
      format=serialization.PrivateFormat.TraditionalOpenSSL,
      encryption_algorithm=serialization.NoEncryption())
  rsa_public_key = rsa_key.public_key().public_bytes(
      encoding=serialization.Encoding.PEM,
      format=serialization.PublicFormat.SubjectPublicKeyInfo)
  return rsa_private_key, rsa_public_key 

def _convert_key(encoding_name, format_name, private_key):
    if not encoding_name and not format_name:
        return private_key
    backend = backends.default_backend()
    key_obj = serialization.load_pem_private_key(private_key.encode("utf-8"), None, backend)
    if encoding_name.lower() == "pem":
        encoding = serialization.Encoding.PEM
    elif encoding_name.lower() == "der":
        encoding = serialization.Encoding.DER
    else:
        raise Exception("Unknown key encoding: %s" % encoding_name)
    if format_name.lower() == "pkcs1":
        format = serialization.PrivateFormat.TraditionalOpenSSL
    elif format_name.lower() == "pkcs8":
        format = serialization.PrivateFormat.PKCS8
    else:
        raise Exception("Unknown key format: %s" % format_name)

    target_key = key_obj.private_bytes(encoding=encoding, format=format, encryption_algorithm=serialization.NoEncryption())
    return target_key.decode("utf-8") 

def _test_issue(self, name):
        def got_cert(certr):
            key_bytes = self.issued_key.private_bytes(
                encoding=serialization.Encoding.PEM,
                format=serialization.PrivateFormat.TraditionalOpenSSL,
                encryption_algorithm=serialization.NoEncryption())
            FilePath('issued.crt').setContent(certr.body)
            FilePath('issued.key').setContent(key_bytes)
            return certr

        action = start_action(action_type=u'integration:issue')
        with action.context():
            self.issued_key = generate_private_key('rsa')
            csr = csr_for_names([name], self.issued_key)
            return (
                DeferredContext(
                    self.client.request_issuance(CertificateRequest(csr=csr)))
                .addCallback(got_cert)
                .addActionFinish()) 

def load_or_create_client_key(pem_path):
    """
    Load the client key from a directory, creating it if it does not exist.

    .. note:: The client key that will be created will be a 2048-bit RSA key.

    :type pem_path: ``twisted.python.filepath.FilePath``
    :param pem_path: The certificate directory
        to use, as with the endpoint.
    """
    acme_key_file = pem_path.asTextMode().child(u'client.key')
    if acme_key_file.exists():
        key = serialization.load_pem_private_key(
            acme_key_file.getContent(),
            password=None,
            backend=default_backend())
    else:
        key = generate_private_key(u'rsa')
        acme_key_file.setContent(
            key.private_bytes(
                encoding=serialization.Encoding.PEM,
                format=serialization.PrivateFormat.TraditionalOpenSSL,
                encryption_algorithm=serialization.NoEncryption()))
    return JWKRSA(key=key) 

def keygen():
        """
        Generates a keypair using the cryptography lib and returns a tuple (public, private)
        """
        key = rsa.generate_private_key(public_exponent=65537, key_size=2048,
                                       backend=default_backend())

        private = key.private_bytes(encoding=serialization.Encoding.PEM,
                                    format=serialization.PrivateFormat.TraditionalOpenSSL,
                                    encryption_algorithm=serialization.NoEncryption()
                                    ).decode()

        public = key.public_key().public_bytes(encoding=serialization.Encoding.OpenSSH,
                                               format=serialization.PublicFormat.OpenSSH
                                               ).decode()

        return (public, private) 

def _get_raw_key(self, key_id):
        """Retrieves a static, randomly generated, RSA key for the specified key id.

        :param str key_id: User-defined ID for the static key
        :returns: Wrapping key that contains the specified static key
        :rtype: :class:`aws_encryption_sdk.internal.crypto.WrappingKey`
        """
        try:
            static_key = self._static_keys[key_id]
        except KeyError:
            private_key = rsa.generate_private_key(public_exponent=65537, key_size=4096, backend=default_backend())
            static_key = private_key.private_bytes(
                encoding=serialization.Encoding.PEM,
                format=serialization.PrivateFormat.PKCS8,
                encryption_algorithm=serialization.NoEncryption(),
            )
            self._static_keys[key_id] = static_key
        return WrappingKey(
            wrapping_algorithm=WrappingAlgorithm.RSA_OAEP_SHA1_MGF1,
            wrapping_key=static_key,
            wrapping_key_type=EncryptionKeyType.PRIVATE,
        ) 

def generate_key_pair():
    """
    This method generates a keypair and returns it as a tuple
    of (public, private) keys.
    The public key format is OpenSSH and private key format is PEM.
    """
    key_pair = rsa.generate_private_key(
        backend=default_backend(),
        public_exponent=65537,
        key_size=2048)
    private_key = key_pair.private_bytes(
        crypt_serialization.Encoding.PEM,
        crypt_serialization.PrivateFormat.PKCS8,
        crypt_serialization.NoEncryption()).decode('utf-8')
    public_key = key_pair.public_key().public_bytes(
        crypt_serialization.Encoding.OpenSSH,
        crypt_serialization.PublicFormat.OpenSSH).decode('utf-8')
    return public_key, private_key 

def __init__(self):
        from cryptography.hazmat.primitives import serialization as crypto_serialization
        from cryptography.hazmat.primitives.asymmetric import rsa
        from cryptography.hazmat.backends import (
            default_backend as crypto_default_backend,
        )

        self.key = rsa.generate_private_key(
            backend=crypto_default_backend(), public_exponent=65537, key_size=2048
        )
        self.private_key = self.key.private_bytes(
            crypto_serialization.Encoding.PEM,
            crypto_serialization.PrivateFormat.PKCS8,
            crypto_serialization.NoEncryption(),
        ).decode("ascii")

        self.public_key = (
            self.key.public_key()
            .public_bytes(
                crypto_serialization.Encoding.OpenSSH,
                crypto_serialization.PublicFormat.OpenSSH,
            )
            .decode("ascii")
        ) 

def generate_signing_key(args):
    if os.path.exists(args.keyfile):
        raise esptool.FatalError("ERROR: Key file %s already exists" % args.keyfile)
    if args.version == "1":
        """ Generate an ECDSA signing key for signing secure boot images (post-bootloader) """
        sk = ecdsa.SigningKey.generate(curve=ecdsa.NIST256p)
        with open(args.keyfile, "wb") as f:
            f.write(sk.to_pem())
        print("ECDSA NIST256p private key in PEM format written to %s" % args.keyfile)
    elif args.version == "2":
        """ Generate a RSA 3072 signing key for signing secure boot images """
        private_key = rsa.generate_private_key(
            public_exponent=65537,
            key_size=3072,
            backend=default_backend()
        ).private_bytes(
            encoding=serialization.Encoding.PEM,
            format=serialization.PrivateFormat.TraditionalOpenSSL,
            encryption_algorithm=serialization.NoEncryption()
        ).decode()
        with open(args.keyfile, "wb") as f:
            f.write(private_key)
        print("RSA 3072 private key in PEM format written to %s" % args.keyfile) 

def generate_key_pair(key_length):
    private_key = rsa.generate_private_key(backend=default_backend(),
                                           public_exponent=65537,
                                           key_size=key_length)

    private_key_der = private_key.private_bytes(
        encoding=serialization.Encoding.DER,
        format=serialization.PrivateFormat.PKCS8,
        encryption_algorithm=serialization.NoEncryption())

    public_key_pem = private_key.public_key().public_bytes(
        serialization.Encoding.PEM,
        serialization.PublicFormat.SubjectPublicKeyInfo) \
        .decode("utf-8")

    # strip off header
    public_key_der_encoded = ''.join(public_key_pem.split('\n')[1:-2])

    return private_key_der, public_key_der_encoded 

def generate_key_pair(key_length):
    private_key = rsa.generate_private_key(backend=default_backend(),
                                           public_exponent=65537,
                                           key_size=key_length)

    private_key_der = private_key.private_bytes(
        encoding=serialization.Encoding.DER,
        format=serialization.PrivateFormat.PKCS8,
        encryption_algorithm=serialization.NoEncryption())

    public_key_pem = private_key.public_key().public_bytes(
        serialization.Encoding.PEM,
        serialization.PublicFormat.SubjectPublicKeyInfo) \
        .decode("utf-8")

    # strip off header
    public_key_der_encoded = ''.join(public_key_pem.split('\n')[1:-2])

    return private_key_der, public_key_der_encoded 

def get_connection_params(args):
    """
    Construct and return the connection parameters

    parameter: (dict) args
        The command arguments of the command function calling this helper function

    returns:
        Snowflake connection params
    """
    params: dict = {}
    set_provided(params, 'user', USER)
    set_provided(params, 'password', PASSWORD)
    set_provided(params, 'account', ACCOUNT)
    set_provided(params, 'authenticator', AUTHENTICATOR)
    set_provided(params, 'region', REGION)
    set_provided(params, 'insecure_mode', INSECURE)
    set_provided(params, 'warehouse', args.get('warehouse'), WAREHOUSE)
    set_provided(params, 'database', args.get('database'), DATABASE)
    set_provided(params, 'schema', args.get('schema'), SCHEMA)
    set_provided(params, 'role', args.get('role'), ROLE)
    if CERTIFICATE:
        p_key = serialization.load_pem_private_key(CERTIFICATE, password=CERT_PASSWORD, backend=default_backend())
        pkb = p_key.private_bytes(
            encoding=serialization.Encoding.DER,
            format=serialization.PrivateFormat.PKCS8,
            encryption_algorithm=serialization.NoEncryption()
        )
        params['private_key'] = pkb
    return params 

def private_bytes(self, encoding, format, encryption_algorithm):
        if (
            encoding is serialization.Encoding.Raw or
            format is serialization.PublicFormat.Raw
        ):
            if (
                format is not serialization.PrivateFormat.Raw or
                encoding is not serialization.Encoding.Raw or not
                isinstance(encryption_algorithm, serialization.NoEncryption)
            ):
                raise ValueError(
                    "When using Raw both encoding and format must be Raw "
                    "and encryption_algorithm must be NoEncryption()"
                )

            return self._raw_private_bytes()

        if (
            encoding in serialization._PEM_DER and
            format is not serialization.PrivateFormat.PKCS8
        ):
            raise ValueError(
                "format must be PKCS8 when encoding is PEM or DER"
            )

        return self._backend._private_key_bytes(
            encoding, format, encryption_algorithm, self._evp_pkey, None
        ) 

def private_bytes(self, encoding, format, encryption_algorithm):
        if (
            encoding is serialization.Encoding.Raw or
            format is serialization.PublicFormat.Raw
        ):
            if (
                format is not serialization.PrivateFormat.Raw or
                encoding is not serialization.Encoding.Raw or not
                isinstance(encryption_algorithm, serialization.NoEncryption)
            ):
                raise ValueError(
                    "When using Raw both encoding and format must be Raw "
                    "and encryption_algorithm must be NoEncryption()"
                )

            return self._raw_private_bytes()

        if (
            encoding in serialization._PEM_DER and
            format is not serialization.PrivateFormat.PKCS8
        ):
            raise ValueError(
                "format must be PKCS8 when encoding is PEM or DER"
            )

        return self._backend._private_key_bytes(
            encoding, format, encryption_algorithm, self._evp_pkey, None
        ) 

def private_bytes(self, encoding, format, encryption_algorithm):
        if (
            encoding is serialization.Encoding.Raw or
            format is serialization.PublicFormat.Raw
        ):
            if (
                format is not serialization.PrivateFormat.Raw or
                encoding is not serialization.Encoding.Raw or not
                isinstance(encryption_algorithm, serialization.NoEncryption)
            ):
                raise ValueError(
                    "When using Raw both encoding and format must be Raw "
                    "and encryption_algorithm must be NoEncryption()"
                )

            return self._raw_private_bytes()

        if (
            encoding in serialization._PEM_DER and
            format is not serialization.PrivateFormat.PKCS8
        ):
            raise ValueError(
                "format must be PKCS8 when encoding is PEM or DER"
            )

        return self._backend._private_key_bytes(
            encoding, format, encryption_algorithm, self._evp_pkey, None
        ) 

def private_bytes(self, encoding, format, encryption_algorithm):
        if (
            encoding is serialization.Encoding.Raw or
            format is serialization.PublicFormat.Raw
        ):
            if (
                format is not serialization.PrivateFormat.Raw or
                encoding is not serialization.Encoding.Raw or not
                isinstance(encryption_algorithm, serialization.NoEncryption)
            ):
                raise ValueError(
                    "When using Raw both encoding and format must be Raw "
                    "and encryption_algorithm must be NoEncryption()"
                )

            return self._raw_private_bytes()

        if (
            encoding in serialization._PEM_DER and
            format is not serialization.PrivateFormat.PKCS8
        ):
            raise ValueError(
                "format must be PKCS8 when encoding is PEM or DER"
            )

        return self._backend._private_key_bytes(
            encoding, format, encryption_algorithm, self._evp_pkey, None
        ) 

def create_key(self):
        key = dsa.generate_private_key(
            backend=crypto_default_backend(), key_size=self.get("KeySize")
        )
        private_key = key.private_bytes(
            crypto_serialization.Encoding.PEM,
            crypto_serialization.PrivateFormat.PKCS8,
            crypto_serialization.NoEncryption(),
        )

        public_key = key.public_key().public_bytes(
            crypto_serialization.Encoding.OpenSSH,
            crypto_serialization.PublicFormat.OpenSSH,
        )
        return private_key.decode("ascii"), public_key.decode("ascii") 

def dump_pem_jwk(data):
    """Dump JWK as PEM."""
    return data.key.private_bytes(
        encoding=serialization.Encoding.PEM,
        format=serialization.PrivateFormat.TraditionalOpenSSL,
        encryption_algorithm=serialization.NoEncryption(),
    ).strip() 

def key_to_pem(self):
        "Convert a key to the PEM format."

        return self.ec.private_bytes(serialization.Encoding.PEM,
                                     serialization.PrivateFormat.TraditionalOpenSSL,
                                     serialization.NoEncryption()) 

def generate_csr(self):
        if not self.private_key:
            key = rsa.generate_private_key(
                public_exponent=65537,
                key_size=self.key_size,
                backend=default_backend(),
            )
        else:
            key = self.private_key

        csr_builder = x509.CertificateSigningRequestBuilder(
            subject_name=self.subject_name
        )

        if self.ip_addr_list:
            csr_builder = csr_builder.add_extension(
                self.subject_alt_name, critical=True
            )

        csr = csr_builder.sign(key, hashes.SHA256(), default_backend())
        self.pem_csr = csr.public_bytes(serialization.Encoding.PEM)

        self.pem_private_key = key.private_bytes(
            encoding=serialization.Encoding.PEM,
            format=serialization.PrivateFormat.TraditionalOpenSSL,
            encryption_algorithm=serialization.NoEncryption(),
        )

        return csr 

def private_bytes(self, encoding, format, encryption_algorithm):
        if (
            encoding is serialization.Encoding.Raw or
            format is serialization.PublicFormat.Raw
        ):
            if (
                format is not serialization.PrivateFormat.Raw or
                encoding is not serialization.Encoding.Raw or not
                isinstance(encryption_algorithm, serialization.NoEncryption)
            ):
                raise ValueError(
                    "When using Raw both encoding and format must be Raw "
                    "and encryption_algorithm must be NoEncryption()"
                )

            return self._raw_private_bytes()

        if (
            encoding in serialization._PEM_DER and
            format is not serialization.PrivateFormat.PKCS8
        ):
            raise ValueError(
                "format must be PKCS8 when encoding is PEM or DER"
            )

        return self._backend._private_key_bytes(
            encoding, format, encryption_algorithm, self._evp_pkey, None
        ) 

def private_bytes(self, encoding, format, encryption_algorithm):
        if (
            encoding is serialization.Encoding.Raw or
            format is serialization.PublicFormat.Raw
        ):
            if (
                format is not serialization.PrivateFormat.Raw or
                encoding is not serialization.Encoding.Raw or not
                isinstance(encryption_algorithm, serialization.NoEncryption)
            ):
                raise ValueError(
                    "When using Raw both encoding and format must be Raw "
                    "and encryption_algorithm must be NoEncryption()"
                )

            return self._raw_private_bytes()

        if (
            encoding in serialization._PEM_DER and
            format is not serialization.PrivateFormat.PKCS8
        ):
            raise ValueError(
                "format must be PKCS8 when encoding is PEM or DER"
            )

        return self._backend._private_key_bytes(
            encoding, format, encryption_algorithm, self._evp_pkey, None
        ) 

def private_bytes(self, encoding, format, encryption_algorithm):
        if (
            encoding is serialization.Encoding.Raw or
            format is serialization.PublicFormat.Raw
        ):
            if (
                format is not serialization.PrivateFormat.Raw or
                encoding is not serialization.Encoding.Raw or not
                isinstance(encryption_algorithm, serialization.NoEncryption)
            ):
                raise ValueError(
                    "When using Raw both encoding and format must be Raw "
                    "and encryption_algorithm must be NoEncryption()"
                )

            return self._raw_private_bytes()

        if (
            encoding in serialization._PEM_DER and
            format is not serialization.PrivateFormat.PKCS8
        ):
            raise ValueError(
                "format must be PKCS8 when encoding is PEM or DER"
            )

        return self._backend._private_key_bytes(
            encoding, format, encryption_algorithm, self._evp_pkey, None
        )