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A comment on Everything you need to know about cryptography in 1 hour.

Re:Everything you need to know about cryptography in 1 hour by caf on Friday May 14, 2010 @09:35AM (#1347274)
I'll be interested to hear the thoughts behind the "Probably Avoid" recommendation on DSA and EC signatures. They're both attractive in some situations because they produce much shorter signatures than RSA.

The recommendation for AES-256 over AES-128 runs contrary to Schneier's advice. It makes it hard for the non-experts when the experts can't agree...

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Re:Everything you need to know about cryptography in 1 hour by cperciva on Friday May 14, 2010 @09:42AM (#1347296)
DSA and EC both have benefits in some rare circumstances. That's the 1% of the time when you ought to consult a cryptographer.

I'm aware that my advice concerning AES does not match Schneier's advice. I don't think he takes side channel attacks seriously enough.

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Re:Everything you need to know about cryptography in 1 hour by tptacek on Friday May 14, 2010 @01:27PM (#1347927)
He also thought "cube cryptanalysis" was going to break most modern ciphers. Do you think he's a serious practitioner? I think he's a pundit.
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Re:Everything you need to know about cryptography in 1 hour by cperciva on Friday May 14, 2010 @03:17PM (#1348278)
I think Schneier does less cryptography now than he used to, but I would still say that he's much more than just a pundit.
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Re:Everything you need to know about cryptography in 1 hour by tptacek on Friday May 14, 2010 @03:40PM (#1348344)
I'm interested in why you think that (I'm in listen mode here, not argue mode).
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Re:Everything you need to know about cryptography in 1 hour by cperciva on Friday May 14, 2010 @04:09PM (#1348445)
Hmm. I'm having trouble putting my finger on anything really concrete right now. More than anything else I'd say that it's just a general impression from how well in touch he seems to be with current events.
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Re:Everything you need to know about cryptography in 1 hour by NateLawson on Friday May 14, 2010 @06:01PM (#1348748)
He was part of the SHA-3 team that proposed Skein. I think he also coauthored a paper on some advances in attacks on hashes with Kelsey recently.
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Re:Everything you need to know about cryptography in 1 hour by tptacek on Friday May 14, 2010 @05:22PM (#1348652)
:)
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