Two tidbits of potential interest

M.B.Jr. marcio.barbado at
Thu Sep 24 18:30:42 CEST 2009

Hi David,

about the first "tidbit":

On Tue, Sep 22, 2009 at 6:08 PM, David Shaw <dshaw at> wrote:
> First of all, someone has factored a 512-bit RSA key (the one used to
> protect a TI programmable calculator, it seems).  It took 73 days on a
> dual-core 1900Mhz Athlon64.  It took just under 5 gigs of storage and around
> 2.5 gigs of RAM.  In other words: not much at all.  It's not some big
> distributed project - rather it's a single guy who wanted to factor it and
> just left it running in the background for 2 and a half months.  (This is
> actually a month old - forgot to send it before now).

dummy question:

by factoring a public key integer, one can get somehow to its
corresponding private key?


Marcio Barbado, Jr.

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