The MIX transformation of RC2; four of these comprise a MIXING round
General
Designers : Ron Rivest
First published : leaked in 1996, designed in 1987
Cipher detail
Key sizes : 8–1024 bits, in steps of 8 bits; default 64 bits
Block sizes : 64 bits
Structure : Source-heavy unbalanced Feistel network
Rounds : 16 of type MIXING, 2 of type MASHING
This module implements the RC2 (Rivest's Cipher version 2) encryption algorithm in pure python, specified in RFC 2268.
ECB and CBC modes are supported.
Original source code : https://github.com/0xEBFE/RC2-python/blob/master/rc2.py
Backporting Python 3 Code to Python 2.7.x by koha <kkoha@msn.com>
Quick start
Install from PyPI: https://pip.pypa.io/en/latest/installing.html
pip install rc2
Example RC2 usage
from rc2 import *
#RC2 ECB encryption.
plaintext = "hello_word_ECB"
key = "test key"
rc2 = RC2(key)
encrypted = rc2.encrypt(plaintext,MODE_ECB)
print encrypted.encode('hex')
#RC2 ECB decryption.
rc2 = RC2(key)
decrypted = rc2.decrypt(encrypted,MODE_ECB)
print decrypted
#RC2 CBC encryption.
plaintext = "hello_word_CBC"
key = "test key"
iv = "\x01\x02\x03\x04\x05\x06\x07\x08"
rc2 = RC2(key)
encrypted = rc2.encrypt(plaintext,MODE_CBC,iv,PADDING_PKCS5)
print encrypted.encode('hex')
#RC2 CBC decryption.
rc2 = RC2(key)
decrypted = rc2.decrypt(encrypted,MODE_CBC,iv,PADDING_PKCS5)
print decrypted