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How To (And Not To) Make the Online Trust Honor Roll
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RetiredUser
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RetiredUser,
User Rank: Ninja
7/31/2017 | 2:46:22 PM
Re: impersonization, forgery, and fakes
100% behind you here, mack.  There is room for the Public Key Model to improve, of course.  Read an interesting paper "Soundness in the Public-Key Model" by Silvio Micali and Leonid Reyzin.  From the ABSTRACT:

The public-key model for interactive proofs has proved to be quite effective in improving protocol efficiency (see Canetti, Goldreich, Goldwasser, Micali, STOC 2001). We argue, however, that its soundness notion is more subtle and complex than in the classical model, and that it should be better understood to avoid designing erroneous protocols. Specifically, for the public-key model, we:

 
  • identify four meaningful notions of soundness;
  • prove that, under minimal complexity assumptions, these four notions are distinct;
  • identify the exact soundness notions satisfied by prior interactive protocols; and
  • identify the round complexity of some of the new notions.
macker490
100%
0%
macker490,
User Rank: Ninja
7/18/2017 | 8:21:33 AM
impersonization, forgery, and fakes
what do the sites do to prevent the "Bad Guys" from impersonating them -- or transmitting fakes and forgeries?

sites focus tons of effort on identifying their customers.    but what do customers do in order to authenticate sites?

we rely on a large list of x.509 certificates -- published by our web browsers  -- and most of us -- have no clue what's in that list.

For Critical Sites Only:    we all need to COUNTERSIGN trusted certificates using our own PGP/GnuPG key

in the Public Key Model this step is required in order to validate a key.   Keys must be validated before a trust level can be assigned.

give this some thought.   "They" want to authenticate you -- but -- you need to authenticate them -- and the model we use today -- fails.   That's an F


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