protected override TPMCommandResponse InternalProcess()
{
using (TPMBlob requestBlob = new TPMBlob())
{
requestBlob.WriteCmdHeader(TPMCmdTags.TPM_TAG_RQU_AUTH1_COMMAND, TPMOrdinals.TPM_ORD_IncrementCounter);
requestBlob.WriteUInt32(_params.GetValueOf <uint>("counter_id"));
_responseBlob = AuthorizeMeAndTransmit(requestBlob);
}
_responseBlob.SkipHeader();
_responseParameters = new Parameters();
_responseParameters.AddPrimitiveType("counter_id", _responseBlob.ReadUInt32());
_responseParameters.AddValue("counter_value", TPMCounterValueCore.CreateFromTPMBlob(_responseBlob));
return(new TPMCommandResponse(true, TPMCommandNames.TPM_CMD_CreateCounter, _responseParameters));
}
public override TPMCommandResponse Process()
{
using (TPMBlob requestBlob = new TPMBlob())
{
requestBlob.WriteCmdHeader(TPMCmdTags.TPM_TAG_RQU_COMMAND, TPMOrdinals.TPM_ORD_ReadCounter);
requestBlob.WriteUInt32(_params.GetValueOf <uint>("counter_id"));
_responseBlob = TransmitMe(requestBlob);
}
_responseBlob.SkipHeader();
_responseParameters = new Parameters();
_responseParameters.AddPrimitiveType("counter_id", _params.GetValueOf <uint>("counter_id"));
_responseParameters.AddValue("counter_value", TPMCounterValueCore.CreateFromTPMBlob(_responseBlob));
return(new TPMCommandResponse(true, TPMCommandNames.TPM_CMD_ReadCounter, _responseParameters));
}
protected override TPMCommandResponse InternalProcess()
{
AuthHandle auth1OSAP = _commandAuthHelper.AssureOSAPSharedSecret(this, AuthSessionNum.Auth1);
byte[] xorKey = new HashProvider().Hash(
new HashByteDataProvider(auth1OSAP.SharedSecret),
new HashByteDataProvider(auth1OSAP.NonceEven));
ByteHelper.XORBytes(_secret, xorKey);
if (_secret.Length != 20)
{
throw new ArgumentException("secret needs to be 20 bytes long (SHA1 hash)");
}
if (_label.Length != 4)
{
throw new ArgumentException("Label needs to be 4 bytes long");
}
using (TPMBlob requestBlob = new TPMBlob())
{
requestBlob.WriteCmdHeader(TPMCmdTags.TPM_TAG_RQU_AUTH1_COMMAND, TPMOrdinals.TPM_ORD_CreateCounter);
requestBlob.Write(_secret, 0, 20);
requestBlob.Write(_label, 0, 4);
_responseBlob = AuthorizeMeAndTransmit(requestBlob);
}
_responseBlob.SkipHeader();
_responseParameters = new Parameters();
_responseParameters.AddPrimitiveType("counter_id", _responseBlob.ReadUInt32());
_responseParameters.AddValue("counter_value", TPMCounterValueCore.CreateFromTPMBlob(_responseBlob));
return(new TPMCommandResponse(true, TPMCommandNames.TPM_CMD_CreateCounter, _responseParameters));
}