That, or in case you don't have one, copy from the dist dir, in trousers
source [1]. It's worth saying though the keys are kept in the filesystem
wrapped by the SRK, except for the SRK itself, EK or an Owner Evict Key.

[1] - https://github.com/srajiv/trousers/tree/master/dist

-- 
Rajiv Andrade
Security Development
IBM Linux Technology Center

On Thu, 19 Jan 2012, august huber wrote:

> try copying /var/lib/tpm/system.data from a machine you have already
> taken ownership of.
> 
> august huber
> security engineer
> google.com
> pgp:0xb6a0f519
> 
> 
> 
> On Thu, Jan 19, 2012 at 4:34 AM, Yash Jain <[email protected]> wrote:
> > Hello all,
> > I was using trousers and tpm-tools to encrypt all my data and was
> > using a LFS. I have now reinstalled my filesystem and after
> > reinstalling it, i am not able to encrypt/decrypt the data.
> > Please let me know, if some one of you know to take the backup of keys
> > stored in persistence storage.
> >
> > Alway i get an error :
> > Tspi_Context_LoadKeyByUUID failed: 0x00002020 - layer=tcs, code=0020
> > (32), Key not found in persistent storage.
> >
> > Error : Unable to write output file while decrypting.
> >
> > Any hint/document would be helpful.
> > Looking forward for your reply ASAP.
> >
> > Thanks in Advance.
> >
> > Regards,
> > Yeshpal.
> >
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