Tpm2Lib.TpmPublic.VerifyQuote C# (CSharp) Method

        public bool VerifyQuote(
            TpmAlgId pcrDigestAlg,
            PcrSelection[] expectedSelectedPcr,
            Tpm2bDigest[] expectedPcrValues,
            byte[] nonce,
            Attest quotedInfo,
            ISignatureUnion signature,
            byte[] qualifiedNameOfSigner = null)
        {
            if (!(quotedInfo.attested is QuoteInfo))
            {
                return false;
            }

            if (quotedInfo.magic != Generated.Value)
            {
                return false;
            }

            if (!quotedInfo.extraData.IsEqual(nonce))
            {
                return false;
            }

            // Check environment of signer (name) is expected
            if (qualifiedNameOfSigner != null)
            {
                if (!quotedInfo.qualifiedSigner.IsEqual(qualifiedNameOfSigner))
                {
                    return false;
                }
            }

            // Now check the quote-specific fields
            var quoted = (QuoteInfo)quotedInfo.attested;

            // Check values pcr indices are what we expect
            if (!Globs.ArraysAreEqual(quoted.pcrSelect, expectedSelectedPcr))
            {
                return false;
            }

            // Check that values in the indices above are what we expect
            // ReSharper disable once UnusedVariable
            var expected = new PcrValueCollection(expectedSelectedPcr, expectedPcrValues);
            var m = new Marshaller();

            foreach (Tpm2bDigest d in expectedPcrValues)
            {
                m.Put(d.buffer, "");
            }

            TpmHash expectedPcrHash = TpmHash.FromData(pcrDigestAlg, m.GetBytes());
            if (!Globs.ArraysAreEqual(expectedPcrHash, quoted.pcrDigest))
            {
                return false;
            }

            // And finally check the signature
            bool sigOk = VerifySignatureOverData(quotedInfo.GetTpmRepresentation(), signature);
            return sigOk;
        }