Re: RFC: Another proposed hash function transition plan

From: Jonathan Nieder <jrnieder@gmail.com>
Date: Mar 13, 2017, 17:48 UTC
Message-ID: <20170313174804.GH26789@aiede.mtv.corp.google.com>
In-Reply-To: <91a34c5b-7844-3db2-cf29-411df5bcf886@noekeon.org>

Hi,

The Keccak Team wrote:

Show 7 quoted lines

> We have read your transition plan to move away from SHA-1 and noticed
> your intent to use SHA3-256 as the new hash function in the new Git
> repository format and protocol. Although this is a valid choice, we
> think that the new SHA-3 standard proposes alternatives that may also be
> interesting for your use cases.  As designers of the Keccak function
> family, we thought we could jump in the mail thread and present these
> alternatives.

I indeed had some reservations about SHA3-256's performance. The main hash function we had in mind to compare against is blake2bp-256. This overview of other functions to compare against should end up being very helpful.

Thanks for this. When I have more questions (which I most likely will) I'll keep you posted.

Sincerely, Jonathan