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License: BSD 2-Clause "Simplified" License
Python implementation of AES with CBC/ECB mode and padding scheme PKCS5.
License: BSD 2-Clause "Simplified" License
Hello,
how can i pkcs 7 iteration :)
Currently the secret key must be a utf-8 encoded string but in some cases we have to use the binary secret key.
Thx if possible. For the current workaround solution, I implements my own class for anybody who may need it.
from cryptography.hazmat.backends import default_backend
from cryptography.hazmat.primitives.ciphers.algorithms import AES
from cryptography.hazmat.primitives.ciphers.modes import ECB
from aes_pkcs5.algorithms import AESCommon, Cipher, OUTPUT_FORMATS
class AESECBPKCS5Padding(AESCommon):
"""
Implements AES algorithm with ECB mode of operation and padding scheme PKCS5.
"""
def __init__(self, key: bytes, output_format: str):
super().__init__('0', output_format)
self._key = key
if output_format not in OUTPUT_FORMATS:
raise NotImplementedError(
f"Support for output format: {output_format} is not implemented"
)
self._output_format = output_format
def _get_cipher(self):
"""Return AES/CBC/PKCS5Padding Cipher"""
return Cipher(AES(self._key), mode=ECB(), backend=default_backend())
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