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Diffstat (limited to 'rsa/_compat.py')
-rw-r--r-- | rsa/_compat.py | 48 |
1 files changed, 0 insertions, 48 deletions
diff --git a/rsa/_compat.py b/rsa/_compat.py deleted file mode 100644 index 050e81b..0000000 --- a/rsa/_compat.py +++ /dev/null @@ -1,48 +0,0 @@ -# Copyright 2011 Sybren A. Stüvel <sybren@stuvel.eu> -# -# Licensed under the Apache License, Version 2.0 (the "License"); -# you may not use this file except in compliance with the License. -# You may obtain a copy of the License at -# -# https://www.apache.org/licenses/LICENSE-2.0 -# -# Unless required by applicable law or agreed to in writing, software -# distributed under the License is distributed on an "AS IS" BASIS, -# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -# See the License for the specific language governing permissions and -# limitations under the License. - -"""Python compatibility wrappers.""" - -from struct import pack - - -def byte(num: int) -> bytes: - """ - Converts a number between 0 and 255 (both inclusive) to a base-256 (byte) - representation. - - :param num: - An unsigned integer between 0 and 255 (both inclusive). - :returns: - A single byte. - """ - return pack("B", num) - - -def xor_bytes(b1: bytes, b2: bytes) -> bytes: - """ - Returns the bitwise XOR result between two bytes objects, b1 ^ b2. - - Bitwise XOR operation is commutative, so order of parameters doesn't - generate different results. If parameters have different length, extra - length of the largest one is ignored. - - :param b1: - First bytes object. - :param b2: - Second bytes object. - :returns: - Bytes object, result of XOR operation. - """ - return bytes(x ^ y for x, y in zip(b1, b2)) |