From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Thu, 02 Mar 2017 22:27:15 GMT
Subject: Re: SHA1 collisions found
Message-ID: <CA+55aFzdJcFZQdJ78rvZ92nNZRsKfcUKMCiXwTVYR34JAuznrA@mail.gmail.com>
In-Reply-To: <20170302215457.l2zhxgnvhulw2hl5@kitenet.net>

On Thu, Mar 2, 2017 at 1:54 PM, Joey Hess <id@joeyh.name> wrote:
>
> There's a surprising result of combining iterated hash functions, that
> the combination is no more difficult to attack than the strongest hash
> function used.

Duh. I should actually have known that. I started reading the paper
and went "this seems very familiar". I'm pretty sure I've been pointed
at that paper before (or maybe just a similar one), and I just didn't
react enough for it to leave a lasting impact.

              Linus