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

Ken Goldman kgold at linux.ibm.com
Mon Feb 10 16:30:26 UTC 2020


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?



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