On 28 Feb 2014, at 02:14, Allan Jude <free...@allanjude.com> wrote: > With r262501 > (http://svnweb.freebsd.org/base?view=revision&revision=262501) importing > the upgraded bcrypt from OpenBSD and eventually changing the default > identifier for bcrypt to $2b$ it reminded me of a feature that is often > seen in Forum software and other web apps. > … > This would make it much easier to transition a very large userbase from > md5crypt to bcrypt or sha512crypt, rather than expiring the passwords or > something.
The sleeping accounts won’t be upgraded, so be left at the ‘insecure’ algorithm. I do see the point of automatic updating of password hashes for a newer algorithm, but ‘not needing expiry’ isn’t the right argument. It is actually an argument opposing your change! What you probably meant was: don’t hassle users with the change in algorithm, possibly only the users that haven’t ever logged in after 6 months. Nick
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