| # Author: Trevor Perrin |
| # See the LICENSE file for legal information regarding use of this file. |
| |
| """OpenSSL/M2Crypto RC4 implementation.""" |
| |
| from .cryptomath import * |
| from .rc4 import RC4 |
| |
| if m2cryptoLoaded: |
| |
| def new(key): |
| return OpenSSL_RC4(key) |
| |
| class OpenSSL_RC4(RC4): |
| |
| def __init__(self, key): |
| RC4.__init__(self, key, "openssl") |
| self.rc4 = m2.rc4_new() |
| m2.rc4_set_key(self.rc4, key) |
| |
| def __del__(self): |
| m2.rc4_free(self.rc4) |
| |
| def encrypt(self, plaintext): |
| return bytearray(m2.rc4_update(self.rc4, plaintext)) |
| |
| def decrypt(self, ciphertext): |
| return bytearray(self.encrypt(ciphertext)) |
