> On Thu, Jun 27, 2002 at 03:28:01PM -0700, Lance Uyehara wrote:
> > >
> > > PAP is what happens between the user and the NAS, not what happens
between
> > > the NAS and the RADIUS server.  With PAP, the RADIUS server gets the
> > > password as plaintext (protected on the wire with md5 "encryption")
and
> > > hashes it, then compares it against the hash.
> >
> > This is confusing me. I believe, the RADIUS server is receiving the md5
> > hashed password, not plaintext, so it has to then hash the plaintext
> > password it already has, using the supplied authenticator. Right?
>
> No, the RADIUS server is receiving the password which is xor'd with
> the shared secret (and a random value) using md5.  The RADIUS server
> performs another xor and recovers the plaintext.
>
> The md5 that is happening is not just a pure hash of the value to be
> protected.

I understand now.

Thanks for clearing this up,
Lance



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