Re: [PATCH 1/2] crypto: sm3 - add a new alias name sm3-256

[Ken Goldman]

On 2/9/2020 10:17 PM, Eric Biggers wrote:
> According to https://tools.ietf.org/id/draft-oscca-cfrg-sm3-01.html,
> SM3 always produces a 256-bit hash value.  E.g., it says:
>
> 	"SM3 produces an output hash value of 256 bits long"
>
> and
>
> 	"SM3 is a hash function that generates a 256-bit hash value."
>
> I don't see any mention of "SM3-256".
>
> So why not just keep it as "sm3" and change hash_info.c instead?
> Since the name there is currently wrong, no one can be using it yet.

Question:  Is 256 bits fundamental to SM3?  Could there ever be a 
variant in the future that's e.g., 512 bits?