I'd be mildly interested to better understand the CRI exploits:
http://www.ietf.org/internet-drafts/draft-irtf-asrg-cri-00.txt
This document expires next month...there has been little to no
discussion nor interest of this draft (nor any others which I have
seen). We are a research group that is to produce research for the IETF
rather than merely exchange ideas.
Not specifically C/R - but following on from a previous thread, I'm trying
to track down the "porn-pay" CAPTCHA exploit.
I had a prompt and helpful response from Byron Spice,
I'm hoping to hear back from Luis von Ahn at CMU.
Greg Mori of UC Berkeley Computer Vision Group has some pages oulining a
method used to break Gimpy, the CAPTCHA used at Yahoo!
http://www.cs.berkeley.edu/~mori/
I would guess the CRI draft needs some revision,
<strike>consent</strike> at least :-)
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