internal override TpmHash GetPolicyDigest(TpmAlgId hashAlg)
{
var m = new Marshaller();
m.Put(TpmCc.PolicyNvWritten, "ordinal");
byte writtenName = IsNvIndexRequiredToHaveBeenWritten ? (byte)1 : (byte)0;
m.Put(writtenName, "writtenSet");
TpmHash previous = GetNextAcePolicyDigest(hashAlg);
return previous.Extend(m.GetBytes());
}