[45139] in Cypherpunks
Time-based cryptanalysis: How to defeat it?
daemon@ATHENA.MIT.EDU (anonymous-remailer@shell.portal.co)
Mon Dec 11 02:15:09 1995
Date: Sun, 10 Dec 1995 22:56:26 -0800
To: cypherpunks@toad.com
From: anonymous-remailer@shell.portal.com
Assuming Alice is decrypting a secret message sent to her
by Bob (on her very slow C64 ;), and Mallet is watching
with a stopwatch in hand, hoping to determine Alice's secret
key...
It would be good to place inside the decryption routines
a timer (WELL PLACED!) that waits a random-number of cycles
(based on key-strokes, mouse position, etc.) to defeat this
type of cryptanalysis?
