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python/gdata/tlslite/utils/OpenSSL_RC4.py

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+"""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 m2.rc4_update(self.rc4, plaintext)
+
+        def decrypt(self, ciphertext):
+            return self.encrypt(ciphertext)