Tpm2Lib.TpmPolicyAuthorize.Execute C# (CSharp) Method

        internal override TpmRc Execute(Tpm2 tpm, AuthSession authSession, PolicyTree policy)
        {
            byte[] dataToSign = Globs.Concatenate(PolicyToReplace, PolicyRef);
            byte[] aHash = CryptoLib.HashData(SigningHash, dataToSign);

            TpmHandle verifierHandle = tpm.LoadExternal(null, SigningKey, TpmRh.Owner);
            if (policy.AllowErrorsInPolicyEval)
            {
                tpm._AllowErrors();
            }

            // todo - fix the serialization so that we can persist the interface
            ISignatureUnion theSig = null;
            if(null!= (Object) Sig1)
            {
                theSig = Sig1;
            }
            if (null != (Object)Sig2)
            {
                theSig = Sig2;
            }

            if (theSig != null)
            {
                Ticket = tpm.VerifySignature(verifierHandle, aHash, theSig);
                TpmRc intermediateError = tpm._GetLastResponseCode();
                if (intermediateError != TpmRc.Success)
                {
                    tpm.FlushContext(verifierHandle);
                    return intermediateError;
                }
            }
            else
            {
                // create a dummy ticket = e.g. for a trial session
                Ticket = new TkVerified(TpmRh.Owner, new byte[0]);
            }
            tpm.FlushContext(verifierHandle);


            byte[] keySign = SigningKey.GetName();
            TpmHandle policySession = authSession;
            if (TheParamsCallback != null)
            {
                TheParamsCallback(tpm, ref policySession, ref PolicyToReplace, ref PolicyRef, keySign, ref Ticket);
            }
            if (policy.AllowErrorsInPolicyEval)
            {
                tpm._AllowErrors();
            }
            tpm.PolicyAuthorize(policySession, PolicyToReplace, PolicyRef, keySign, Ticket);

            return tpm._GetLastResponseCode();
        }
        public byte[] PolicyToReplace;