[Cryptography] NSA and cryptanalysis

[Joachim Strömbergson]

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Aloha!

Jerry Leichter wrote:
> On Sep 1, 2013, at 2:11 PM, Perry E. Metzger wrote:
> 
>> On Sun, 1 Sep 2013 07:11:06 -0400 Jerry Leichter
>> <leichter at lrw.com> wrote:
>>> Meanwhile, just what evidence do we really have that AES is 
>>> secure?
>> The fact that the USG likes using it, too.
> We know they *say in public* that it's acceptable.  But do we know
> what they *actually use*?
> 
>> That's also evidence for eliptic curve techniques btw.
> Same problem.

(Slightly tangential but on topic I hope)

Am I the only surprised that the NSA designed block ciphers SIMON and
SPECK is vulnerable to differential attacks?

http://eprint.iacr.org/2013/543

If I understand the history correctly NSA supported the development of
DES as well as SHA-0/SHA-1 and their contributions shows knowledge about
differential attacks at least as far back as 1977.

- -- 
Med vänlig hälsning, Yours

Joachim Strömbergson - Alltid i harmonisk svängning.
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