Date: Mon, 17 Sep 2001 23:17:18 -0400 (EDT) From: "Michael Richards" <michael@fastmail.ca> To: kris@obsecurity.org Cc: freebsd-security@FreeBSD.ORG Subject: Re: US Congress already discussing bans on strong crypto Message-ID: <3BA6BCBE.0001F5.04743@frodo.searchcanada.ca>
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Your sediments echo mine about RSA and peer review. They can't really
stuff the RSA cat back into the bag. As for the change NSA did make
to the DES, I was not at all aware of this. I always assumed they had
weakened it. When did this info become public knowledge?
-Michael
[chop chop chop]
> There's nowhere to put a "backdoor" in the RSA algorithm. There's
> room to put a backdoor in the DES algorithm, and in fact when the
> DES algorithm was under consideration back in the early 70's the
> NSA did request a change to the "S-Boxes" of the candidate
> algorithm submitted by IBM which was eventually accepted. This
> change may have seemed suspicious, until a number of years later
> when civilian cryptographers discovered the technique of
> differential cryptanalysis and realised that the NSA's changes
> were to improve the resilience of DES against that attack, which
> they evidently already knew about.
[chop chop chop]
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