Re: A83: Ti uses MD5


[Prev][Next][Index][Thread]

Re: A83: Ti uses MD5




Yes, page $1F is in ROM.  In fact it's the "BOOT" page, and contains the
validation routines.  I think what he's saying is that those values are in
the ROM, and copied to the RAM registers.  Sounds reasonable to me.

-Dan Englender

----- Original Message -----
From: "Scott Dial" <wrath@calc.org>
To: <assembly-83@lists.ticalc.org>
Sent: Wednesday, August 30, 2000 10:55 PM
Subject: Re: A83: Ti uses MD5


>
> or a coincidence that the a section memory is defaulted to such a simple
> pattern.... 0123456789ABCDEFFEDCBA9876543210... further, why would those
> be in the rom (i presume that is where that page is)? Shouldn't a
> register be in memory, and who is to say that TI would follow the RFC?
>
> Solignac Julien wrote:
> >
> > I can't believe what I just found, in the previous RFC I referred to, it
is
> > explained that four 32 bit registers are used to compute a MD5
fingerprint
> > and that they are initialized to the following values:
> >
> >           word A: 01 23 45 67
> >           word B: 89 AB CD ef
> >           word C: fe dc ba 98
> >           word D: 76 54 32 10
> >
> > I actually found those four values aligned at page 1F. Which means that
the
> > certification process uses MD5 message digests.
> >
> > Solignac Julien
> > x1cygnus@xcalc.org
> > http://xcalc.org
> >
> > Piracy is a victimless crime, like punching someone in the dark
>
> --
> Scott "Wrath" Dial
> wrath@calc.org
> ICQ#3608935
> Member of TCPA - tcpa.calc.org
> PGP key available
> _______________________________________________
> Why pay for something you could get for free?
> NetZero provides FREE Internet Access and Email
> http://www.netzero.net/download/index.html
>




Follow-Ups: References: