Perform tlslite 0.3.8 -> 0.4.6 renames ahead of time.

third_party/tlslite/tlslite/utils/Python_RC4.py

-"""Pure-Python RC4 implementation."""
-
-from RC4 import RC4
-from cryptomath import *
-
-def new(key):
-    return Python_RC4(key)
-
-class Python_RC4(RC4):
-    def __init__(self, key):
-        RC4.__init__(self, key, "python")
-        keyBytes = stringToBytes(key)
-        S = [i for i in range(256)]
-        j = 0
-        for i in range(256):
-            j = (j + S[i] + keyBytes[i % len(keyBytes)]) % 256
-            S[i], S[j] = S[j], S[i]
-
-        self.S = S
-        self.i = 0
-        self.j = 0
-
-    def encrypt(self, plaintext):
-        plaintextBytes = stringToBytes(plaintext)
-        S = self.S
-        i = self.i
-        j = self.j
-        for x in range(len(plaintextBytes)):
-            i = (i + 1) % 256
-            j = (j + S[i]) % 256
-            S[i], S[j] = S[j], S[i]
-            t = (S[i] + S[j]) % 256
-            plaintextBytes[x] ^= S[t]
-        self.i = i
-        self.j = j
-        return bytesToString(plaintextBytes)
-
-    def decrypt(self, ciphertext):
-        return self.encrypt(ciphertext)