Re: A89: Re: Re: PR Hit -- Those bastards
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Re: A89: Re: Re: PR Hit -- Those bastards
hmm... i wonder....
what if there isn't any actual tough encryption on the key?
is the fact that it is 256bit published by TI, or just that it has a
256bit checksum?
because of US encryption export regulations, if the ti89 had any
software which could encrypt/decrypt a 256bit key, it would be illegal
for TI to export it to outside the united states and canada.
Has anyone actually disassembled the boot loader to find out what sort
of encryption it uses?
You know, just step through the process in VTI or something.
It's worth a shot, and if we could write our own ROMs then i think our
official position would be that if TI isn't being helpfull, we can write
our own, better, OS.
--robin
Robin Kirkman wrote:
>
> if you think you can brute force a 256bit key, you're crazy.
> you said that brute forcing a 56bit key would take a few years? well...
> a 256bit key would take 2^(256-56) times longer to crack!
> --robin
>
> Zeromus Mog wrote:
> >
> > ----- Original Message -----
> > From: Serial <Serial@earthlink.net>
> > To: <assembly-89@lists.ticalc.org>
> > Sent: Tuesday, November 30, 1999 9:22 PM
> > Subject: A89: Re: PR Hit -- Those bastards
> >
> > >
> > > As for that 3rd option under unrealistic. There is a possibility to that
> > > though.
> > > My comp spends months at a time up and 90% of that time it's idle on irc
> > > or something to that end. It's a p3 500 with 128 meg of ram ... if we ALL
> > > devoted our idle time to crack it we could have it in a few months *maybe*
> > > I know the 56bit keys take years sometimes but it's worth our idle time to
> > > try. If someone would write a program to either randomly generate keys
> > > and test them or use the brute force method I'd happily donate infinite
> > > amounts of time to the cause. I think it's entirely possible to break it
> > > and we may get lucky. And in the mean time we can get the best of the
> > > best to break open the rom.
> >
> > Yeah. I got a PIII 550 right here! This sucker sits here doing nothing a
> > LOT! If someone can make a background app that picks key ranges from a
> > website that haven't been used yet, then my computer sat here and tried a
> > bunch of codes while it was doing nothing... I could help make a dent in
> > this! And if we got most people to do this...! Yeah it takes a long time,
> > but who knows? We may get lucky...
> >
> > -Zero
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