def scrypt(cls, key, rounds, memory_cost, salt_separator=None):
"""Creates a new Scrypt algorithm instance.
This is the modified Scrypt algorithm used by Firebase Auth. See ``standard_scrypt()``
function for the standard Scrypt algorith,
Args:
key: Signer key as a byte sequence.
rounds: Number of rounds. Must be an integer between 1 and 8.
memory_cost: Memory cost as an integer between 1 and 14.
salt_separator: Salt separator as a byte sequence (optional).
Returns:
UserImportHash: A new ``UserImportHash``.
"""
data = {
'signerKey':
b64_encode(_auth_utils.validate_bytes(key, 'key', required=True)),
'rounds':
_auth_utils.validate_int(rounds, 'rounds', 1, 8),
'memoryCost':
_auth_utils.validate_int(memory_cost, 'memory_cost', 1, 14),
}
if salt_separator:
data['saltSeparator'] = b64_encode(
_auth_utils.validate_bytes(salt_separator, 'salt_separator'))
return UserImportHash('SCRYPT', data)
def password_salt(self, password_salt):
self._password_salt = _auth_utils.validate_bytes(
password_salt, 'password_salt')
def _hmac(cls, name, key):
data = {
'signerKey':
b64_encode(_auth_utils.validate_bytes(key, 'key', required=True))
}
return UserImportHash(name, data)
def password_hash(self, password_hash):
self._password_hash = _auth_utils.validate_bytes(
password_hash, 'password_hash')
