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Re: Encryption over Hidden Services



On Fri, 6 Aug 2010 11:28:15 -0700
coderman <coderman@xxxxxxxxx> wrote:

> On Fri, Aug 6, 2010 at 6:00 AM, Robert Ransom <rransom.8774@xxxxxxxxx> wrote:
> > ...
> > | On my 1.5GHz x86-machine, I get about 500k hashes/sec.
> > | +---------------------------------------------+
> > | | chars | ~number of tries | ~time @ 500 KH/s |
> > Â[snip]
> > | | Â Â 6 | Â Â Â32^6 Â= Â1g | Â Â Â Â Â 30 min |
> > | | Â Â 7 | Â Â Â32^7 Â= 32g | Â Â Â Â Â Â1 day |
> > | | Â Â 8 | Â Â Â32^8 Â= Â1t | Â Â Â Â Â25 days |
> > | | Â Â 9 | Â Â Â32^9 Â= 32t | Â Â Â Â2.5 years |
> 
> to throw in my $0.02, this is quite low for any kind of on-demand
> computing resource within the same league of difficulty. at $200 you
> can get grid/cloud compute time on the order of 200B hashes/hour (160
> cores, 160 G memory) for 3-4 hours. and getting cheaper every day...

Good point.  Also, the README lists a few optimizations that would make
it go even faster (most notably, converting the user-provided regex for
the base32-encoded hash to something that the binary hash can be
efficiently compared to).

Robert Ransom

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