public static Tpm2bDigest[] SafePcrRead(Tpm2 tpm, PcrSelection sel)
{
PcrSelection[] selOut;
var selIn = new PcrSelection[] { sel.Copy() };
var pcrValues = new Tpm2bDigest[0];
do
{
Tpm2bDigest[] vals;
tpm.PcrRead(selIn, out selOut, out vals);
pcrValues = pcrValues.Concat(vals).ToArray();
Debug.Assert(selOut.Length == 1);
// The first part of the while condition is used to by pass not
// implemented PCRs
} while (!Globs.IsZeroBuffer(selOut[0].pcrSelect) &&
selIn[0].Clear(selOut[0]));
Debug.Assert(selIn[0].GetSelectedPcrs().Length == 0);
Debug.Assert(sel.GetSelectedPcrs().Length == pcrValues.Length);
return(pcrValues);
}