two version of R2R are hereHEADmaster

1 files changed, 23 insertions, 0 deletions

diff --git a/.venv/lib/python3.12/site-packages/cryptography/hazmat/primitives/kdf/__init__.py b/.venv/lib/python3.12/site-packages/cryptography/hazmat/primitives/kdf/__init__.py
new file mode 100644
index 00000000..79bb459f
--- /dev/null
+++ b/.venv/lib/python3.12/site-packages/cryptography/hazmat/primitives/kdf/__init__.py
@@ -0,0 +1,23 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+
+from __future__ import annotations
+
+import abc
+
+
+class KeyDerivationFunction(metaclass=abc.ABCMeta):
+    @abc.abstractmethod
+    def derive(self, key_material: bytes) -> bytes:
+        """
+        Deterministically generates and returns a new key based on the existing
+        key material.
+        """
+
+    @abc.abstractmethod
+    def verify(self, key_material: bytes, expected_key: bytes) -> None:
+        """
+        Checks whether the key generated by the key material matches the
+        expected derived key. Raises an exception if they do not match.
+        """