Looking at CRYPT, if you provide a key but not a digest algorithm, it
will try to get the digest alg by splitting the key between a colon.
So you could say:

auth.settings.hmac_key = 'sha512:%s' % vpepm_hmac_key

On Feb 7, 1:44 pm, Jonathan Lundell <jlund...@pobox.com> wrote:
> I've got this (where the key is a text string):
>
> from gluon.tools import *
> auth=Auth(globals(),db)                      # authentication/authorization
> auth.settings.hmac_key = vpepm_hmac_key
> auth.define_tables()                         # creates all needed tables
>
> #  invoke IS_STRONG only for password creation, not password checking
> if "login" not in request.args:
>     auth.settings.table_user.password.requires += [IS_STRONG(min=8, max=0, 
> upper=1, lower=1, number=1, special=1)]
>
> All my logins are failing with a bad password. I've got a sha512 hash in my 
> user database (manually initialized), but the login form is returning an md5 
> hash, presumably because digest_alg is set to md5. The manual says, "If a key 
> is specified it uses the HMAC+SHA512 with the provided key," but I don't see 
> where digest_alg is ever set to sha512.
>
> Is there a bug, or am I doing something wrong?

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