TPM Handle Exception

[Guest Talha]

I am trying to perform a TPM_Seal operation on some data. My platform

is Vista SP1 and the chip is Infineon (TPM 1.2)

 

On Calling the TPM_Seal operation the TBS is returning a strange error

code of 0x80280401 which is "Invalid Handle". The key is already

loaded in the TPM and Im using the same handle returned by the TPM.

Most of the other operations are fine including use of OIAP / OSAP

sessions and / or any other key.

Any ideas would be appreciated.