def instantiateCipher(self, mode, message):
self.alg, self.key_len = AES, 16
# hash GT msg into a hex string
key = sha1(message)[0:self.key_len]
iv = '6543210987654321' # static IV (for testing)
PRP_method = selectPRP(self.alg, (key, mode, iv))
return PRP_method
def instantiateCipher(self, mode, message):
self.alg, self.key_len = AES, 16
# hash GT msg into a hex string
key = sha1(message)[0:self.key_len]
iv = '6543210987654321' # static IV (for testing)
PRP_method = selectPRP(self.alg, (key, mode, iv))
return PRP_method
def _initCipher(self,IV = None):
if IV == None :
IV = OpenSSLRand().getRandomBytes(self._block_size)
self._IV = IV
return selectPRP(self._alg,(self._key,self._mode,self._IV))