[OLPC-devel] Secure BIOS on the OLPC

[Jim Gettys]

As a hack, at the height of the crypto export insanity, people made a T
shirt with RSA on it.  3 lines of perl.

http://en.wikipedia.org/wiki/Illegal_T-shirt

The biggest challenge is it likes multi-precision arithmetic.

You can still buy them:

http://www.cafepress.com/buy/rsa/-/pv_design_prod/p_storeid.3721214/pNo_3721214/id_1534535/opt_/pg_/c_/fpt_


                               - Jim


On Sun, 2006-08-27 at 19:31 -0500, Richard Smith wrote:
> > >       a)      How does the verification happen ? This is where the
> > > vulnerability will be.
> >
> > Small binary within the LB payload that uses standard crypto signature
> > verification. This part can be assumed fully secure, as long as we ship
> > the machines with a known-good BIOS, which we obviously will.
> 
> I was under the impression that the public key based crypto code is
> pretty large. Due to the tables used.  Will the small binary really be
> small?
> 
-- 
Jim Gettys
One Laptop Per Child