From: Jonathan Nieder Date: Mon, 13 Mar 2017 17:48:04 GMT Subject: Re: RFC: Another proposed hash function transition plan Message-ID: <20170313174804.GH26789@aiede.mtv.corp.google.com> In-Reply-To: <91a34c5b-7844-3db2-cf29-411df5bcf886@noekeon.org> Hi, The Keccak Team wrote: > 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