Your IP : 3.137.222.12
"""M2Crypto wrapper for OpenSSL RC4 API.
Copyright (c) 1999-2003 Ng Pheng Siong. All rights reserved."""
from m2 import rc4_new, rc4_free, rc4_set_key, rc4_update
class RC4:
"""Object interface to the stream cipher RC4."""
rc4_free = rc4_free
def __init__(self, key=None):
self.cipher = rc4_new()
if key:
rc4_set_key(self.cipher, key)
def __del__(self):
if getattr(self, 'cipher', None):
self.rc4_free(self.cipher)
def set_key(self, key):
rc4_set_key(self.cipher, key)
def update(self, data):
return rc4_update(self.cipher, data)
def final(self):
return ''