[openssl-users] openssl_tpm_engine - create_tpm_key failed when tried to wrap key

Ken Goldman kgoldman at us.ibm.com
Fri Feb 27 13:53:37 UTC 2015

I don't know  trousers very well, but there is a mailing list 
specifically for it.

trousers supports the software TPM from


If you run with that, it traces the TPM operation in detail.  Send me 
the trace and I can probably tell you what's wrong.

On 2/27/2015 12:16 AM, zakkir hussain Kharim wrote:
> *Problem*
> We are trying to wrap a private key using storage root key using the
> "create_tpm_key" tool which is part of openssl tpm engine. But it is
> failing. We tried to debug this in multiple ways, but not able to
> understand what is wrong*. * We are trying to wrap using Storage root
> key. Input private key is a 2048 bit length RSA key without any
> passphrase. The failure seems to related to getting public key of SRK
> from the SRK handle loaded.

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