Re: [TrouSerS-users] Question on Tspi_TPM_PcrExtend

[Hal F. <hal...@gm...>]

On 1/31/07, Kent Yoder <shp...@gm...> wrote:
> > As far as your question about extending with a large file, I'm not
> > sure the TSS really supports that properly. You can pre-hash the file
>
>   True, the trousers 0.2.8 mistakenly re-hashes the input to
> Tspi_TPM_PcrExtend. This is fixed in CVS though...

So what is the correct behavior here? Does Tspi_TPM_PcrExtend require
you to give it a 20-byte input buffer in the ulPcrDataLength/pbPcrData
parameters? Or does it hash this input buffer before feeding it to the
TPM?

Hal