[4094] in cryptography@c2.net mail archive
Re: Pop Count Instruction and crytanalysis
daemon@ATHENA.MIT.EDU (John Young)
Fri Jan 29 11:30:03 1999
Date: Thu, 28 Jan 1999 21:10:29 -0500
To: cryptography@c2.net
From: John Young <jya@pipeline.com>
In-Reply-To: <199901282035.PAA09158@postal.research.att.com>
Thanks to John McKay and others for the reference to
interesting features of supercomputers concerning "sideways
add" or pop-count instruction -- and possible applications
to cryptography and cryptanalysis.
We found that S.H. Lavington's 1978 Comm ACM paper on
the Manchester Mark I and Atlas is online:
http://www.computer50.org/kgill/mark1/lav.html
In it the CDC 7600 is cited as having the pop-count
"facility for nuclear physics applications programming,
etc." That "etc." is provocative in the light of what Jitze
and Steve have written.
