src/third_party/tlslite/tlslite/utils/OpenSSL_RC4.py

   1 """OpenSSL/M2Crypto RC4 implementation."""
   2
   3 from cryptomath import *
   4 from RC4 import RC4
   5
   6 if m2cryptoLoaded:
   7
   8     def new(key):
   9         return OpenSSL_RC4(key)
  10
  11     class OpenSSL_RC4(RC4):
  12
  13         def __init__(self, key):
  14             RC4.__init__(self, key, "openssl")
  15             self.rc4 = m2.rc4_new()
  16             m2.rc4_set_key(self.rc4, key)
  17
  18         def __del__(self):
  19             m2.rc4_free(self.rc4)
  20
  21         def encrypt(self, plaintext):
  22             return m2.rc4_update(self.rc4, plaintext)
  23
  24         def decrypt(self, ciphertext):
  25             return self.encrypt(ciphertext)