full-disclosure - Re: Allegations regarding OpenBSD IPSEC

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Date: Sat, 18 Dec 2010 10:32:44 -0800
From: mark seiden <mis@...den.com>
To: Abuse007 <abuse007@...il.com>
Cc: "full-disclosure@...ts.grok.org.uk" <full-disclosure@...ts.grok.org.uk>
Subject: Re: Allegations regarding OpenBSD IPSEC

i was joking about the history of the s boxes, originally designed by ibm but
with substantial classified input from nsa.

suspicious people believed the s box changes (and the reduced key length) that
was adopted was intended to weaken des, or make it more brute-forceable by the nsa.

the designers deny it.  

the parallels between that situation and this should be evident.

On Dec 16, 2010, at 4:26 AM, Abuse007 wrote:
> 
> Changing the s-boxes in DES (and therefore Triple DES as well) would break comparability with other implementations as it would no longer decrypt the same as a standard implementation.

for more you can see, among others

http://www.wordiq.com/definition/DES#NSA.27s_involvement_in_the_design
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