xlat = [ 0x64, 0x73, 0x66, 0x64, 0x3b, 0x6b, 0x66, 0x6f, 0x41, 0x2c, 0x2e, 0x69, 0x79, 0x65, 0x77, 0x72, 0x6b, 0x6c, 0x64, 0x4a, 0x4b, 0x44, 0x48, 0x53, 0x55, 0x42, 0x73, 0x67, 0x76, 0x63, 0x61, 0x36, 0x39, 0x38, 0x33, 0x34, 0x6e, 0x63, 0x78, 0x76, 0x39, 0x38, 0x37, 0x33, 0x32, 0x35, 0x34, 0x6b, 0x3b, 0x66, 0x67, 0x38, 0x37 ] def encrypt(password): seed = ord(os.urandom(1)) % 16 return "%02d%s" % ( seed, "".join( ["%02x" % (ord(password[i]) ^ xlat[seed + i]) for i in range(len(password))] ) ) def decrypt(h): seed, h = int(h[:2]), h[2:] cipherBytes = [int(h[i : i + 2], 16) for i in range(0, len(h), 2)] return "".join( [chr(cipherBytes[i] ^ xlat[(seed + i) % len(xlat)]) for i in range(len(cipherBytes))] )