public void ReadFromTpmBlob(TPMBlob blob)
{
/*uint responseSize = */blob.ReadUInt32 ();
this._tag = blob.ReadUInt16 ();
this._version = new TPMVersionCore (blob);
this._specLevel = blob.ReadUInt16 ();
this._errataRev = blob.ReadByte ();
this._tpmVendorId = new byte[4];
blob.Read (_tpmVendorId, 0, _tpmVendorId.Length);
ushort vendorSize = blob.ReadUInt16 ();
_vendorSpecific = blob.ReadBytes (vendorSize);
}
public void ReadFromTpmBlob(TPMBlob blob)
{
uint size = blob.ReadUInt16();
byte[] selectionBits = new byte[size];
blob.Read(selectionBits, 0, (int)size);
_pcrSelection = new BitMap(selectionBits);
}
public void ReadFromTpmBlob(TPMBlob blob)
{
UInt16 handleCount = blob.ReadUInt16 ();
for (int i = 0; i < handleCount; i++)
_handles.Add (blob.ReadUInt32());
}
public void ReadFromTpmBlob(TPMBlob blob)
{
_algorithmId = (TPMAlgorithmId)blob.ReadUInt32 ();
_encScheme = (TPMEncScheme)blob.ReadUInt16 ();
_sigScheme = (TPMSigScheme)blob.ReadUInt16 ();
UInt32 paramsSize = blob.ReadUInt32 ();
byte[] paramsData = new byte[paramsSize];
blob.Read (paramsData, 0, paramsData.Length);
using (TPMBlob paramSrc = new TPMBlob (paramsData))
{
if (_algorithmId == TPMAlgorithmId.TPM_ALG_RSA)
_params = TPMRSAKeyParamsCore.CreateFromTPMBlob(paramSrc);
else if (_algorithmId == TPMAlgorithmId.TPM_ALG_AES128 ||
_algorithmId == TPMAlgorithmId.TPM_ALG_AES192 ||
_algorithmId == TPMAlgorithmId.TPM_ALG_AES256)
//TODO
throw new NotImplementedException ("Symmetric key params not implemented");
}
}
public void ReadFromTpmBlob(TPMBlob blob)
{
_tag = (TPMStructureTag)blob.ReadUInt16();
_resourceType = (TPMResourceType)blob.ReadUInt32();
_handle = blob.ReadUInt32();
_label = blob.ReadBytes(16);
_contextCount = blob.ReadUInt32();
_integrityDigest = blob.ReadBytes(20);
uint additionalSize = blob.ReadUInt32();
_additionalData = blob.ReadBytes((int)additionalSize);
uint sensitiveSize = blob.ReadUInt32();
_sensitiveData = blob.ReadBytes((int)sensitiveSize);
}
/// <summary>
/// Transmit and check the given TPM blob.
/// </summary>
/// <param name="blob"></param>
/// <returns></returns>
public TPMBlob TransmitAndCheck(TPMBlob blob, bool writeSize)
{
ushort expected_rsp_tag;
// Determine the expected RSP tag
blob.Position = 0;
switch (blob.ReadUInt16())
{
case TPMCmdTags.TPM_TAG_RQU_COMMAND:
expected_rsp_tag = TPMCmdTags.TPM_TAG_RSP_COMMAND;
break;
case TPMCmdTags.TPM_TAG_RQU_AUTH1_COMMAND:
expected_rsp_tag = TPMCmdTags.TPM_TAG_RSP_AUTH1_COMMAND;
break;
case TPMCmdTags.TPM_TAG_RQU_AUTH2_COMMAND:
expected_rsp_tag = TPMCmdTags.TPM_TAG_RSP_AUTH2_COMMAND;
break;
default:
throw new Exception();
//throw new TpmCommandException("Unsupported TPM request tag", blob);
}
// Do the actual transaction
TPMBlob rsp = Transmit(blob, writeSize);
// Check the response
CheckTpmReponse(rsp, expected_rsp_tag);
return rsp;
}
/// <summary>
/// Check a TPM reply blob
/// </summary>
/// <param name="reply">The tag type of this blob</param>
public UInt16 CheckTpmReponse(TPMBlob reply)
{
if (reply.Length < 10)
throw new Exception();
//throw new TpmCommandException("Short TPM response", reply);
// Start from position zero
reply.Position = 0;
// Check the reply tag
ushort replyTag = reply.ReadUInt16();
if (replyTag != TPMCmdTags.TPM_TAG_RSP_COMMAND &&
replyTag != TPMCmdTags.TPM_TAG_RSP_AUTH1_COMMAND &&
replyTag != TPMCmdTags.TPM_TAG_RSP_AUTH2_COMMAND)
{
throw new Exception();
//throw new TpmCommandException("Invalid TPM response tag", reply);
}
// Check the parameter size
uint paramSize = reply.ReadUInt32();
if ((int)paramSize != reply.Length)
{
throw new Exception();
//throw new TpmCommandException("Bad TPM response paramSize", reply);
}
// Finally check the TPM result
uint tpmResult = reply.ReadUInt32();
if (tpmResult != 0)
{
throw new TPMResponseException((Int64)tpmResult, TPMErrorCodeToMessage(tpmResult), reply);
}
return replyTag;
}
public void ReadFromTpmBlob(TPMBlob blob)
{
_structureTag = (TPMStructureTag)blob.ReadUInt16();
_label = blob.ReadBytes(4);
_counterValue = blob.ReadUInt32();
}
public void ReadFromTpmBlob(TPMBlob blob)
{
_version = CapabilityDataCore.TPMVersionCore.CreateFromTPMBlob (blob);
_keyUsage = (TPMKeyUsage)blob.ReadUInt16 ();
_keyFlags = (TPMKeyFlags)blob.ReadUInt32 ();
_authDataUsage = (TPMAuthDataUsage)blob.ReadByte ();
_algorithmParams = TPMKeyParamsCore.CreateFromTPMBlob (blob);
uint pcrInfoSize = blob.ReadUInt32 ();
/*byte[] pcrInfo =*/ blob.ReadBytes ((int)pcrInfoSize);
_pubKey = TPMStorePubkeyCore.CreateFromTpmBlob (blob);
uint encDataSize = blob.ReadUInt32 ();
_encData = blob.ReadBytes ((int)encDataSize);
}
