Ausgabe der neuen DB Einträge

venv/lib/python3.9/site-packages/cryptography/hazmat/primitives/asymmetric/utils.py

@@ -0,0 +1,41 @@
+# 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 absolute_import, division, print_function
+
+from cryptography import utils
+from cryptography.hazmat._der import (
+    DERReader,
+    INTEGER,
+    SEQUENCE,
+    encode_der,
+    encode_der_integer,
+)
+from cryptography.hazmat.primitives import hashes
+
+
+def decode_dss_signature(signature):
+    with DERReader(signature).read_single_element(SEQUENCE) as seq:
+        r = seq.read_element(INTEGER).as_integer()
+        s = seq.read_element(INTEGER).as_integer()
+        return r, s
+
+
+def encode_dss_signature(r, s):
+    return encode_der(
+        SEQUENCE,
+        encode_der(INTEGER, encode_der_integer(r)),
+        encode_der(INTEGER, encode_der_integer(s)),
+    )
+
+
+class Prehashed(object):
+    def __init__(self, algorithm):
+        if not isinstance(algorithm, hashes.HashAlgorithm):
+            raise TypeError("Expected instance of HashAlgorithm.")
+
+        self._algorithm = algorithm
+        self._digest_size = algorithm.digest_size
+
+    digest_size = utils.read_only_property("_digest_size")