Update tlslite to 0.4.6.

third_party/tlslite/tlslite/utils/cryptlib_rc4.py

-"""Cryptlib RC4 implementation."""
-
-from cryptomath import *
-from rc4 import RC4
-
-if cryptlibpyLoaded:
-
-    def new(key):
-        return Cryptlib_RC4(key)
-
-    class Cryptlib_RC4(RC4):
-
-        def __init__(self, key):
-            RC4.__init__(self, key, "cryptlib")
-            self.context = cryptlib_py.cryptCreateContext(cryptlib_py.CRYPT_UNUSED, cryptlib_py.CRYPT_ALGO_RC4)
-            cryptlib_py.cryptSetAttribute(self.context, cryptlib_py.CRYPT_CTXINFO_KEYSIZE, len(key))
-            cryptlib_py.cryptSetAttributeString(self.context, cryptlib_py.CRYPT_CTXINFO_KEY, key)
-
-        def __del__(self):
-             cryptlib_py.cryptDestroyContext(self.context)
-
-        def encrypt(self, plaintext):
-            bytes = stringToBytes(plaintext)
-            cryptlib_py.cryptEncrypt(self.context, bytes)
-            return bytesToString(bytes)
-
-        def decrypt(self, ciphertext):
-            return self.encrypt(ciphertext)