public void TestTpmCollector()
{
var PcrAlgorithm = TpmAlgId.Sha256;
if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
{
var process = TpmSim.GetTpmSimulator();
process.Start();
var nvData = new byte[] { 0, 1, 2, 3, 4, 5, 6, 7 };
uint nvIndex = 3001;
var tpmc = new TpmCollector(new CollectorOptions()
{
Verbose = true
}, null, TestMode: true);
// Prepare to write to NV 3001
TpmHandle nvHandle = TpmHandle.NV(nvIndex);
TcpTpmDevice tcpTpmDevice = new TcpTpmDevice("127.0.0.1", 2321, stopTpm: false);
tcpTpmDevice.Connect();
using var tpm = new Tpm2(tcpTpmDevice);
tcpTpmDevice.PowerCycle();
tpm.Startup(Su.Clear);
try
{
tpm._AllowErrors()
.NvUndefineSpace(TpmRh.Owner, nvHandle);
tpm.NvDefineSpace(TpmRh.Owner, null,
new NvPublic(nvHandle, TpmAlgId.Sha1,
NvAttr.NoDa | NvAttr.Ownerread | NvAttr.Ownerwrite,
null, 32));
// Write to NV 3001
tpm.NvWrite(TpmRh.Owner, nvHandle, nvData, 0);
var nvOut = tpm.NvRead(TpmRh.Owner, nvHandle, (ushort)nvData.Length, 0);
Assert.IsTrue(nvOut.SequenceEqual(nvData));
}
catch (TpmException e)
{
Log.Debug(e, "Failed to Write to NV.");
Assert.Fail();
}
// Verify that all the PCRs are blank to start with
var pcrs = TpmCollector.DumpPCRs(tpm, PcrAlgorithm, new PcrSelection[] { new PcrSelection(PcrAlgorithm, new uint[] { 15, 16 }) });
Assert.IsTrue(pcrs.All(x => x.Value.SequenceEqual(new byte[x.Value.Length])));
// Measure to PCR 16
try
{
tpm.PcrExtend(TpmHandle.Pcr(16), tpm.PcrEvent(TpmHandle.Pcr(16), nvData));
}
catch (TpmException e)
{
Log.Debug(e, "Failed to Write PCR.");
}
// Verify that we extended the PCR
var pcrs2 = TpmCollector.DumpPCRs(tpm, PcrAlgorithm, new PcrSelection[] { new PcrSelection(PcrAlgorithm, new uint[] { 15, 16 }, 24) });
Assert.IsTrue(pcrs2[(PcrAlgorithm, 15)].SequenceEqual(pcrs[(PcrAlgorithm, 15)]));
