def generateKey(params):
"""
Generate a new random decrypt key for RSA based on the given params.
:param RsaKeyParams params: The key params with the key size (in bits).
:return: The new decrypt key (PKCS8-encoded private key).
:rtype: DecryptKey
"""
privateKey = TpmPrivateKey.generatePrivateKey(params)
return DecryptKey(privateKey.toPkcs8())
def generateKey(params):
"""
Generate a new random decrypt key for AES based on the given params.
:param AesKeyParams params: The key params with the key size (in bits).
:return: The new decrypt key.
:rtype: DecryptKey
"""
# Convert the key bit size to bytes.
nBytes = int(round(params.getKeySize() / 8))
key = bytearray(nBytes)
for i in range(nBytes):
key[i] = _systemRandom.randint(0, 0xff)
decryptKey = DecryptKey(Blob(key, False))
return decryptKey
def generateKey(params):
"""
Generate a new random decrypt key for RSA based on the given params.
:param RsaKeyParams params: The key params with the key size (in bits).
:return: The new decrypt key (PKCS8-encoded private key).
:rtype: DecryptKey
"""
privateKey = rsa.generate_private_key(public_exponent=65537,
key_size=params.getKeySize(),
backend=default_backend())
privateKeyDer = privateKey.private_bytes(
encoding=serialization.Encoding.DER,
format=serialization.PrivateFormat.PKCS8,
encryption_algorithm=serialization.NoEncryption())
return DecryptKey(Blob(privateKeyDer, False))