def sign(self, data):
        pkg_size_info=self.ctxt.QueryContextAttributes(sspicon.SECPKG_ATTR_SIZES)
        sigsize=pkg_size_info['MaxSignature']
        sigbuf=win32security.PySecBufferDescType()
        sigbuf.append(win32security.PySecBufferType(len(data), sspicon.SECBUFFER_DATA))
        sigbuf.append(win32security.PySecBufferType(sigsize, sspicon.SECBUFFER_TOKEN))
        sigbuf[0].Buffer=data

        self.ctxt.MakeSignature(0,sigbuf,self._get_next_seq_num())
        return sigbuf[1].Buffer
Verify the centralizer of a group/set/element inside another group.
dataset/ETHPy150Open deanhiller/databus/webapp/play1.3.x/python/Lib/site-packages/win32/lib/sspi.py/_BaseAuth.sign--crossover with--dataset/ETHPy150Open sympy/sympy/sympy/combinatorics/testutil.py/_verify_centralizer