On Tue, 2017-04-11 at 10:33 +0530, Promila Jangra wrote:
> Hello all
> 
> I am doing an activity based using TPM 1.2 and openssl.
> First, I'll generate signature using TPM and after that verify the 
> same using opnssl.
> But there is issue regarding the key compatibility between TPM and
> openssl.
> I want to use TPM generated public key to verify the signature 
> through openssl.
> 
> Do anybody have an idea about the usage of TPM generated public key 
> to perform any operation on openssl

create_tpm_key from this repository does it:

https://sourceforge.net/p/trousers/openssl_tpm_engine/ci/master/tree/

I've verified (a year ago now) that the keys it creates are usable by
openssl (the public key decrypts what the private key encrypts).

James



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