Re: [PATCH 0/2] tpm: use SM3 instead of SM3_256

[Tianjia Zhang]

Hi James,

On 10/9/21 9:29 PM, James Bottomley wrote:
> On Sat, 2021-10-09 at 21:08 +0800, Tianjia Zhang wrote:
> > According to https://tools.ietf.org/id/draft-oscca-cfrg-sm3-01.html,
> > SM3 always produces a 256-bit hash value and there are no plans for
> > other length development, so there is no ambiguity in the name of
> > sm3.
>
> For the TPM we're following the TPM Library specification
>
> https://trustedcomputinggroup.org/resource/tpm-library-specification/
>
> Which is very clear: the algorithm name is TPM_ALG_SM3_256
>
> We're using sm3 as our exposed name because that's what linux crypto
> uses, so there should be no problem in what the end user sees, but
> changing to non standard TPM definitions is only going to cause
> confusion at the kernel level.
>
> James

Thanks for your attention. This is really tricky. I will contact 
trustedcomputinggroup first and give some suggestions, It would be best 
if a more standard algorithm name can be used from the source of the 
specification.

I think the macro definition of the crypto directory can remove this 
suffix first, that is, apply patch 1. What's your opinion?

Best regards,
Tianjia