Implement extended master secret in tlslite

third_party/tlslite/tlslite/tlsrecordlayer.py

 # Authors: 
 #   Trevor Perrin
 #   Google (adapted by Sam Rushing) - NPN support
 #   Martin von Loewis - python 3 port
 #   Yngve Pettersen (ported by Paul Sokolovsky) - TLS 1.2
 #
 # See the LICENSE file for legal information regarding use of this file.
 
 """Helper class for TLSConnection."""
 from __future__ import generators
@@ skipping 1238 matching lines @@
         imac_md5.update(compatHMAC(label + masterSecret + bytearray([0x36]*48)))
         imac_sha.update(compatHMAC(label + masterSecret + bytearray([0x36]*40)))
 
         md5Bytes = MD5(masterSecret + bytearray([0x5c]*48) + \
                          bytearray(imac_md5.digest()))
         shaBytes = SHA1(masterSecret + bytearray([0x5c]*40) + \
                          bytearray(imac_sha.digest()))
 
         return md5Bytes + shaBytes
 
+    def _getHandshakeHash(self):
+        if self.version in ((3,1), (3,2)):
+            return self._handshake_md5.digest() + \
+                self._handshake_sha.digest()
+        elif self.version == (3,3):
+            return self._handshake_sha256.digest()