public override TPMCommandResponse Process()
{
byte[] nonce = NonceGenerator.GenerateByteNonce(20);
TPMBlob requestBlob = new TPMBlob();
requestBlob.WriteCmdHeader(TPMCmdTags.TPM_TAG_RQU_COMMAND, TPMOrdinals.TPM_ORD_ReadPubek);
requestBlob.Write(nonce, 0, nonce.Length);
requestBlob.WriteCmdSize();
TPMBlob responseBlob = TransmitMe(requestBlob);
responseBlob.SkipHeader();
long posStart = responseBlob.Position;
TPMPubkeyCore pubkey = TPMPubkeyCore.CreateFromTPMBlob(responseBlob);
long posEnd = responseBlob.Position;
Digest digest = new Digest(responseBlob, 20);
if (digest.CompareTo(
new HashStreamDataProvider(responseBlob, posStart, posEnd - posStart, false),
new HashByteDataProvider(nonce)) == false)
{
throw new TPMResponseException("Local digest does not match remote digest");
}
Parameters responseParams = new Parameters();
responseParams.AddValue(TPMPubkey.PARAM_TPM_PUBKEY, pubkey);
return(new TPMCommandResponse(true, TPMCommandNames.TPM_CMD_ReadPubek, responseParams));
}
public override void Init(Parameters param, TPMProvider tpmProvider, TPMWrapper tpmWrapper)
{
base.Init(param, tpmProvider, tpmWrapper);
_digest = null;
_responseDigest = null;
if (param.IsDefined <byte[]>("externalData"))
{
_nonce = param.GetValueOf <byte[]>("externalData");
}
else
{
_nonce = NonceGenerator.GenerateByteNonce(20);
}
object myType = param.GetValueOf <object>("targetPCR");
_pcrSelection = param.GetValueOf <TPMPCRSelectionCore>("targetPCR");
}
/// <summary>
/// Generates a new nonce odd
/// </summary>
public void NewNonceOddOSAP()
{
NonceGenerator.GenerateByteNonce(_nonceOddOSAP);
}
/// <summary>
/// Generates a new nonce odd
/// </summary>
public void NewNonceOdd()
{
NonceGenerator.GenerateByteNonce(_nonceOdd);
}
