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RNS/Cryptography/PKCS7.py b6bfd1655cbcda3c3da5389f0ed2a7b9f7db959b (b6bfd165) Text, 1.98 KB
T8b949e# Reticulum License
T8b949e#
T8b949e# Copyright (c) 2016-2025 Mark Qvist
T8b949e#
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T8b949e# of this software and associated documentation files (the "Software"), to deal
T8b949e# in the Software without restriction, including without limitation the rights
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T8b949e# copies of the Software, and to permit persons to whom the Software is
T8b949e# furnished to do so, subject to the following conditions:
T8b949e#
T8b949e# - The Software shall not be used in any kind of system which includes amongst
T8b949e# its functions the ability to purposefully do harm to human beings.
T8b949e#
T8b949e# - The Software shall not be used, directly or indirectly, in the creation of
T8b949e# an artificial intelligence, machine learning or language model training
T8b949e# dataset, including but not limited to any use that contributes to the
T8b949e# training or development of such a model or algorithm.
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T8b949e# - The above copyright notice and this permission notice shall be included in
T8b949e# all copies or substantial portions of the Software.
T8b949e#
T8b949e# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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Tff7b72class T56d364PKCS7Tb4b4b4:
Te6edf3BLOCKSIZE Tff7b72= T79c0ff16
Tf0883e@staticmethod
Tff7b72def Td2a8ffpadTb4b4b4(Te6edf3dataTb4b4b4, Te6edf3bsTff7b72=Te6edf3BLOCKSIZETb4b4b4)Tb4b4b4:
Te6edf3l Tff7b72= Tffa657lenTb4b4b4(Te6edf3dataTb4b4b4)
Te6edf3n Tff7b72= Te6edf3bsTff7b72-Te6edf3lTff7b72%Te6edf3bs
Te6edf3v Tff7b72= Tffa657bytesTb4b4b4(Tb4b4b4[Te6edf3nTb4b4b4]Tb4b4b4)
Tff7b72return Te6edf3dataTff7b72+Te6edf3vTff7b72*Te6edf3n
Tf0883e@staticmethod
Tff7b72def Td2a8ffunpadTb4b4b4(Te6edf3dataTb4b4b4, Te6edf3bsTff7b72=Te6edf3BLOCKSIZETb4b4b4)Tb4b4b4:
Te6edf3l Tff7b72= Tffa657lenTb4b4b4(Te6edf3dataTb4b4b4)
Te6edf3n Tff7b72= Te6edf3dataTb4b4b4[Tff7b72-T79c0ff1Tb4b4b4]
Tff7b72if Te6edf3n Tff7b72> Te6edf3bsTb4b4b4:
Tff7b72raise Tf85149ValueErrorTb4b4b4(Ta5d6ff"Ta5d6ffCannot unpad, invalid padding length of Ta5d6ff"Tff7b72+Tffa657strTb4b4b4(Te6edf3nTb4b4b4)Tff7b72+Ta5d6ff"Ta5d6ff bytesTa5d6ff"Tb4b4b4)
Tff7b72elseTb4b4b4:
Tff7b72return Te6edf3dataTb4b4b4[Tb4b4b4:Te6edf3lTff7b72-Te6edf3nTb4b4b4]
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