Re: [Tpm4java-users] Using TPM_Loadkey2 instead TPM_Loadkey

[JESUS M. M. <je...@ti...>]

No, I hadn't done it yesterday, but I deactivated it now and it works like yesterday...

I have commented when TPM_Loadkey method calls to authGetAndVerify just before return the keyHandle. If I do it, all works fine... 

Do you to know if there are any change to do for use authGetAndVerify method with TPM_Loadkey2??

Thank you very much

Cheers

Jesús Marcos

-----Mensaje original-----
De: Frederic Stumpf [mailto:fre...@si...] 
Enviado el: viernes, 22 de mayo de 2009 9:39
Para: JESUS MARCOS MORELL
CC: tpm...@li...
Asunto: Re: [Tpm4java-users] Using TPM_Loadkey2 instead TPM_Loadkey

Have you deactivated the HMAC verification?

TssLowlevel l = TssFactory.getLowlevel();
l.setCheckReply(false);

Cheers,
Frederic




JESUS MARCOS MORELL wrote:
> Hi,
>
> I am using the method "createAndStoreKey" for create and store a new key... when this method calls to "TPM_LoadKey" the response of the TPM is not right, it must be "TPM_LoadKey2" method. Then like I have read in the specifications page, I replace the cmCode for LoadKey by the cmCode for LoadKey2 (I replace 32 by 65). 
>
> And here is the problem, when the "TPM_LoadKey" verifies the reply of the TPM the tpm4java says:
>
> reply authentication failed
>
> This exception is logic because I change the cmCode as I said before... If I comment when "TPM_LoadKey" calls for verification the things go right :) but I think this is not the best way to avoid the exceptions...
>
> Someone knows how to check the response of the TPM when "TPM_LoadKey2" method is using instead "TPM_Loadkey"??
>
>
> Thank you very much in advance
>
> Jesus Marcos
>
>
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-- 
Frederic Stumpf					
Department "Embedded Security and Trusted OS"   

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