protected void CheckResponseAuthInfo()
{
ResponseAuthHandleInfo[] responseAuthHandles = ResponseAuthHandleInfoCore.ReadAuthHandleInfos(this, _responseBlob);
if (responseAuthHandles.Length != _currentAuthorizationInfos.Length)
{
throw new TPMResponseException(
string.Format("Expected #{0} auth handles in response, but received #{1}",
_currentAuthorizationInfos.Length, responseAuthHandles.Length));
}
AuthorizationInfo[] responseAuthInfos = _commandAuthHelper.GenerateResponseAuthData(this);
for (int i = 0; i < responseAuthHandles.Length; i++)
{
if (ByteHelper.CompareByteArrays(responseAuthHandles[i].TpmAuthData,
responseAuthInfos[i].AuthData) == false)
{
throw new TPMResponseException("Received tpm authdata is not valid," +
"maybe the response got modified!");
}
}
for (int i = 0; i < _currentAuthorizationInfos.Length; i++)
{
ResponseAuthHandleInfo current = responseAuthHandles[i];
if (current.ContinueAuthSession == false)
{
_commandAuthHelper.DestroyAuthorizationHandle(this, _currentAuthorizationInfos[i].Handle);
}
else
{
_currentAuthorizationInfos[i].Handle.UpdateNonceEven(current.NonceEven);
}
}
}
/// <summary>
/// Checks all used authorization handles if they should be localy destroyed or not
/// </summary>
/// <param name="forceRelease">true to force the deletion (on error)
/// </param>
protected void ReleaseAuthHandles(bool forceRelease, TPMBlob responseBlob)
{
if (forceRelease)
{
_commandAuthHelper.DestroyAuthorizationHandles(this);
}
else
{
ResponseAuthHandleInfo[] responseAuthHandles = ResponseAuthHandleInfoCore.ReadAuthHandleInfos(this, responseBlob);
for (int i = 0; i < responseAuthHandles.Length; i++)
{
if (responseAuthHandles[i].ContinueAuthSession)
{
_currentAuthorizationInfos[i].Handle.UpdateNonceEven(responseAuthHandles[i].NonceEven);
}
else
{
_commandAuthHelper.RemoveAuthorizationHandle(this, _currentAuthorizationInfos[i].Handle);
}
}
}
}
