public void WriteToTpmBlob(TPMBlob blob)
{
blob.WriteUInt32((uint)_algorithmId);
blob.WriteUInt16((ushort)_encScheme);
blob.WriteUInt16((ushort)_sigScheme);
TPMBlobWriteableHelper.WriteITPMBlobWritableWithUIntSize(blob, (ITPMBlobWritable)_params);
}
protected override TPMCommandResponse InternalProcess()
{
// Unencrypted authorization values, they need to be XOR-Encrypted with
// XOR(auth, SHA-1(OSAP shared secret | session nonce))
//
// OSAP_shared_secret = HMAC(key=usage secret of key handle, nonce even osap | nonce odd osap)
AuthHandle auth1OSAP = _commandAuthHelper.AssureOSAPSharedSecret(this, AuthSessionNum.Auth1);
_encAuth = _params.GetValueOf <byte[]> ("data_auth");
byte[] xorKey = new HashProvider().Hash(
new HashByteDataProvider(auth1OSAP.SharedSecret),
new HashByteDataProvider(auth1OSAP.NonceEven));
ByteHelper.XORBytes(_encAuth, xorKey);
//Load parent key if not loaded
_keyManager.LoadKey(_params.GetValueOf <string>("key"));
TPMBlob requestBlob = new TPMBlob();
requestBlob.WriteCmdHeader(TPMCmdTags.TPM_TAG_RQU_AUTH1_COMMAND, TPMOrdinals.TPM_ORD_Seal);
//key handle gets inserted later, it may be not available now
requestBlob.WriteUInt32(0);
requestBlob.Write(_encAuth, 0, 20);
TPMBlobWriteableHelper.WriteITPMBlobWritableWithUIntSize(requestBlob, _pcrInfo);
requestBlob.WriteUInt32((uint)_inData.Length);
requestBlob.Write(_inData, 0, _inData.Length);
AuthorizeMe(requestBlob);
using (_keyManager.AcquireLock())
{
requestBlob.SkipHeader();
requestBlob.WriteUInt32(_keyManager.IdentifierToHandle(_params.GetValueOf <string>("key")).Handle);
_responseBlob = TransmitMe(requestBlob);
}
CheckResponseAuthInfo();
_responseBlob.SkipHeader();
TPMStoredDataCore sealedData = TPMStoredDataCore.CreateFromTPMBlob(_responseBlob);
Parameters responseParams = new Parameters();
responseParams.AddPrimitiveType("data", ByteHelper.SerializeToBytes(sealedData));
return(new TPMCommandResponse(true, TPMCommandNames.TPM_CMD_Seal, responseParams));
}
public override TPMCommandResponse Process()
{
TPMBlob requestBlob = new TPMBlob();
requestBlob.WriteCmdHeader(TPMCmdTags.TPM_TAG_RQU_COMMAND, TPMOrdinals.TPM_ORD_GetCapability);
requestBlob.WriteUInt32((uint)_capArea);
switch (_capArea)
{
case CapabilityData.TPMCapabilityArea.TPM_CAP_VERSION_VAL:
//Subcaps are ignored by TPM_CAP_VERSION_VAL
requestBlob.WriteUInt32(0);
break;
case CapabilityData.TPMCapabilityArea.TPM_CAP_HANDLE:
requestBlob.WriteUInt32(4);
requestBlob.WriteUInt32((uint)_param.GetValueOf <TPMResourceType> ("handle_type"));
break;
case CapabilityData.TPMCapabilityArea.TPM_CAP_PROPERTY:
CapabilityData.TPMSubCapProperty subCap = _param.GetValueOf <CapabilityData.TPMSubCapProperty> ("subCap");
//Size of subcap
requestBlob.WriteUInt32(4);
requestBlob.WriteUInt32((uint)subCap);
break;
case CapabilityData.TPMCapabilityArea.TPM_CAP_SELECT_SIZE:
CapabilityDataCore.TPMSelectSizeCore tpmSelectSize =
CapabilityDataCore.TPMSelectSizeCore.CreateVersion12(_param.GetValueOf <ushort>(CapabilityData.PARAM_PROP_SELECT_SIZE));
TPMBlobWriteableHelper.WriteITPMBlobWritableWithUIntSize(requestBlob, tpmSelectSize);
break;
default:
throw new NotSupportedException("Defined cap or subcap are not supported");
}
// if (_capArea == CapabilityData.TPMCapabilityArea.TPM_CAP_VERSION_VAL)
// {
// //Subcaps are ignored by TPM_CAP_VERSION_VAL
// requestBlob.WriteUInt32 (0);
// }
// else if (_capArea == CapabilityData.TPMCapabilityArea.TPM_CAP_HANDLE)
// {
// requestBlob.WriteUInt32 (4);
// requestBlob.WriteUInt32 ((uint)_param.GetValueOf<TPMResourceType> ("handle_type"));
// }
// else if (_capArea == CapabilityData.TPMCapabilityArea.TPM_CAP_PROPERTY)
// {
// CapabilityData.TPMSubCapProperty subCap = _param.GetValueOf<CapabilityData.TPMSubCapProperty> ("subCap");
//
// //Size of subcap
// requestBlob.WriteUInt32 (4);
// requestBlob.WriteUInt32 ((uint)subCap);
// }
// else
// throw new NotSupportedException ("Defined cap or subcap are not supported");
requestBlob.WriteCmdSize();
TPMBlob responseBlob = TransmitMe(requestBlob);
responseBlob.SkipHeader();
Parameters parameters = new Parameters();
switch (_capArea)
{
case CapabilityData.TPMCapabilityArea.TPM_CAP_VERSION_VAL:
CapabilityDataCore.TPMCapVersionInfoCore tpmVersionInfo = new CapabilityDataCore.TPMCapVersionInfoCore(responseBlob);
parameters.AddValue(CapabilityData.PARAM_TPM_VERSION_INFO, tpmVersionInfo);
break;
case CapabilityData.TPMCapabilityArea.TPM_CAP_HANDLE:
responseBlob.SkipHeader();
//Reads the response size, which is ignored
responseBlob.ReadUInt32();
HandleListCore handleList = new HandleListCore(responseBlob, _param.GetValueOf <TPMResourceType> ("handle_type"));
parameters.AddValue("handles", handleList);
break;
case CapabilityData.TPMCapabilityArea.TPM_CAP_PROPERTY:
responseBlob.SkipHeader();
switch (_param.GetValueOf <CapabilityData.TPMSubCapProperty> ("subCap"))
{
case CapabilityData.TPMSubCapProperty.TPM_CAP_PROP_PCR:
parameters.AddPrimitiveType(CapabilityData.PARAM_PROP_PCR, ReadUInt32Response(responseBlob));
break;
//case CapabilityData.TPMSubCapProperty.TPM_CAP_PROP_DIR:
// parameters.AddPrimitiveType (CapabilityData.PARAM_PROP_DIR, ReadUInt32Response (responseBlob));
// break;
case CapabilityData.TPMSubCapProperty.TPM_CAP_PROP_MANUFACTURER:
parameters.AddPrimitiveType(CapabilityData.PARAM_PROP_MANUFACTURER, ReadUInt32Response(responseBlob));
break;
case CapabilityData.TPMSubCapProperty.TPM_CAP_PROP_KEYS:
parameters.AddPrimitiveType(CapabilityData.PARAM_PROP_KEYS, ReadUInt32Response(responseBlob));
break;
case CapabilityData.TPMSubCapProperty.TPM_CAP_PROP_MAX_AUTHSESS:
parameters.AddPrimitiveType(CapabilityData.PARAM_PROP_MAX_AUTHSESS, ReadUInt32Response(responseBlob));
break;
case CapabilityData.TPMSubCapProperty.TPM_CAP_PROP_MAX_TRANSESS:
parameters.AddPrimitiveType(CapabilityData.PARAM_PROP_MAX_TRANSESS, ReadUInt32Response(responseBlob));
break;
case CapabilityData.TPMSubCapProperty.TPM_CAP_PROP_MAX_KEYS:
parameters.AddPrimitiveType(CapabilityData.PARAM_PROP_MAX_KEYS, ReadUInt32Response(responseBlob));
break;
case CapabilityData.TPMSubCapProperty.TPM_CAP_PROP_MAX_SESSIONS:
parameters.AddPrimitiveType(CapabilityData.PARAM_PROP_MAX_SESSIONS, ReadUInt32Response(responseBlob));
break;
default:
throw new NotSupportedException("Defined cap or subcap are not supported");
}
break;
case CapabilityData.TPMCapabilityArea.TPM_CAP_SELECT_SIZE:
parameters.AddPrimitiveType(CapabilityData.PARAM_PROP_SELECT_SIZE, ReadBoolResponse(responseBlob));
break;
}
// if (_capArea == CapabilityData.TPMCapabilityArea.TPM_CAP_VERSION_VAL)
// {
// CapabilityDataCore.TPMCapVersionInfoCore tpmVersionInfo = new CapabilityDataCore.TPMCapVersionInfoCore (responseBlob);
// parameters.AddValue (CapabilityData.PARAM_TPM_VERSION_INFO, tpmVersionInfo);
// }
// else if (_capArea == CapabilityData.TPMCapabilityArea.TPM_CAP_HANDLE)
// {
// responseBlob.SkipHeader ();
//
// //Reads the response size, which is ignored
// responseBlob.ReadUInt32 ();
//
// HandleListCore handleList = new HandleListCore (responseBlob, _param.GetValueOf<TPMResourceType> ("handle_type"));
// parameters.AddValue ("handles", handleList);
// }
//
//
// else if (_capArea == CapabilityData.TPMCapabilityArea.TPM_CAP_PROPERTY &&
// _param.GetValueOf<CapabilityData.TPMSubCapProperty> ("subCap") == CapabilityData.TPMSubCapProperty.TPM_CAP_PROP_PCR)
// {
// responseBlob.SkipHeader ();
// parameters.AddPrimitiveType (CapabilityData.PARAM_PROP_PCR, ReadUInt32Response (responseBlob));
// }
//
// else if (_capArea == CapabilityData.TPMCapabilityArea.TPM_CAP_PROPERTY &&
// _param.GetValueOf<CapabilityData.TPMSubCapProperty> ("subCap") == CapabilityData.TPMSubCapProperty.TPM_CAP_PROP_MAX_AUTHSESS)
// {
// responseBlob.SkipHeader ();
// parameters.AddPrimitiveType (CapabilityData.PARAM_PROP_MAX_AUTHSESS, ReadUInt32Response (responseBlob));
// }
//
// else if (_capArea == CapabilityData.TPMCapabilityArea.TPM_CAP_PROPERTY &&
// _param.GetValueOf<CapabilityData.TPMSubCapProperty> ("subCap") == CapabilityData.TPMSubCapProperty.TPM_CAP_PROP_MAX_TRANSESS)
// {
// responseBlob.SkipHeader ();
// parameters.AddPrimitiveType (CapabilityData.PARAM_PROP_MAX_TRANSESS, ReadUInt32Response (responseBlob));
// }
//
// else if (_capArea == CapabilityData.TPMCapabilityArea.TPM_CAP_PROPERTY &&
// _param.GetValueOf<CapabilityData.TPMSubCapProperty> ("subCap") == CapabilityData.TPMSubCapProperty.TPM_CAP_PROP_MAX_SESSIONS)
// {
// responseBlob.SkipHeader ();
// parameters.AddPrimitiveType (CapabilityData.PARAM_PROP_MAX_SESSIONS, ReadUInt32Response (responseBlob));
// }
// else
// throw new NotSupportedException("Defined cap or subcap are not supported");
return(new TPMCommandResponse(true, TPMCommandNames.TPM_CMD_GetCapability, parameters));
}
