On Sun, Nov 9, 2014 at 7:11 PM, Damien Miller <djm@xxxxxxxxxxx> wrote: > On Mon, 10 Nov 2014, Damien Miller wrote: > >> I'm not so concerned about how to display the new fingerprints. Say >> we choose SHA512/224, which yields a 28 byte hash. Rendering this as >> base64 gives us a 38 character string, well shorter than our current >> key fingerprints. (e.g. "GIeKHpiBrP7zaEf7Blicgvez5JceCBfSaESlkA") > > Actually, better still would be embeddeding an algorithm identifier at > the start of the hash, i.e. "A:GIeKHpiBrP7zaEf7Blicgvez5JceCBfSaESlkA" > in case some time in the distant future we need to rotate away from > whatever we choose to replace MD5. > That's always a good idea, but try not to reinvent the wheel too much here: http://hashcat.net/wiki/doku.php?id=example_hashes There's no m5(sha512(word)) but $foo$fpr or $foo$host$fpr should maybe be used? _______________________________________________ openssh-unix-dev mailing list openssh-unix-dev@xxxxxxxxxxx https://lists.mindrot.org/mailman/listinfo/openssh-unix-dev