def __init__(self, key):
if not backend.aead_cipher_supported(self):
raise exceptions.UnsupportedAlgorithm(
"ChaCha20Poly1305 is not supported by this version of OpenSSL",
exceptions._Reasons.UNSUPPORTED_CIPHER)
utils._check_byteslike("key", key)
if len(key) != 32:
raise ValueError("ChaCha20Poly1305 key must be 32 bytes.")
self._key = key
def __init__(self, key: bytes):
utils._check_byteslike("key", key)
if len(key) not in (16, 24, 32):
raise ValueError("AESOCB3 key must be 128, 192, or 256 bits.")
self._key = key
if not backend.aead_cipher_supported(self):
raise exceptions.UnsupportedAlgorithm(
"OCB3 is not supported by this version of OpenSSL",
exceptions._Reasons.UNSUPPORTED_CIPHER,
)
def __init__(self, key):
if not backend.aead_cipher_supported(self):
raise exceptions.UnsupportedAlgorithm(
"ChaCha20Poly1305 is not supported by this version of OpenSSL",
exceptions._Reasons.UNSUPPORTED_CIPHER
)
utils._check_bytes("key", key)
if len(key) != 32:
raise ValueError("ChaCha20Poly1305 key must be 32 bytes.")
self._key = key
def __init__(self, key: bytes):
utils._check_byteslike("key", key)
if len(key) not in (32, 48, 64):
raise ValueError("AESSIV key must be 256, 384, or 512 bits.")
self._key = key
if not backend.aead_cipher_supported(self):
raise exceptions.UnsupportedAlgorithm(
"AES-SIV is not supported by this version of OpenSSL",
exceptions._Reasons.UNSUPPORTED_CIPHER,
)
def __init__(self, key, tag_length=16):
utils._check_byteslike("key", key)
if len(key) not in (16, 24, 32):
raise ValueError("AESCCM key must be 128, 192, or 256 bits.")
self._key = key
if not isinstance(tag_length, int):
raise TypeError("tag_length must be an integer")
if tag_length not in (4, 6, 8, 10, 12, 14, 16):
raise ValueError("Invalid tag_length")
self._tag_length = tag_length
if not backend.aead_cipher_supported(self):
raise exceptions.UnsupportedAlgorithm(
"AESCCM is not supported by this version of OpenSSL",
exceptions._Reasons.UNSUPPORTED_CIPHER)
def __init__(self, key, tag_length=16):
utils._check_bytes("key", key)
if len(key) not in (16, 24, 32):
raise ValueError("AESCCM key must be 128, 192, or 256 bits.")
self._key = key
if not isinstance(tag_length, int):
raise TypeError("tag_length must be an integer")
if tag_length not in (4, 6, 8, 12, 14, 16):
raise ValueError("Invalid tag_length")
self._tag_length = tag_length
if not backend.aead_cipher_supported(self):
raise exceptions.UnsupportedAlgorithm(
"AESCCM is not supported by this version of OpenSSL",
exceptions._Reasons.UNSUPPORTED_CIPHER
)
