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dpwiz/farpassword.py

Created June 15, 2011 07:12
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Decode FAR password
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farpassword.py
def decode(pwd):
"""Decode FAR password"""
pwd = [int(pwd[i:i+2], 16) for i in xrange(0, len(pwd), 2)]
print 'bytes:', pwd
seed = (pwd[0] ^ pwd[1]) | 0x50
print 'password:', ''.join(chr(pwd[i] ^ seed) for i in xrange(2, len(pwd)))
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