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[liberationtech] Visual digests / checksums for security [was Re: What I've learned from Cryptocat]

coderman coderman at
Fri Aug 10 16:43:15 PDT 2012

On Thu, Aug 9, 2012 at 8:56 AM, Mark Belinsky <mark.belinsky at> wrote:
> ... I'm curious about
> the benefits/dangers of making the fingerprint of the SSL certificate more
> accessible to users through visual means...
> we've been exploring the ascii art that key fingerprints generate. It's
> possible to expand that to [images/backgrounds/...]

see also "visprint":

"The original visprint code was written by Ian Goldberg, based on an
idea by Hal Finney, in a post to the coderpunks mailing list. The most
excellent color enhancements were added by Raph Levien. David Johnston
made a port for Win95 console mode and added a bunch of nice features.
Soren Andersen developed the png and transparency code."

everything old is new again...

this won't help you address your core problem, but they sure are fun
to play with. :)

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