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From: don@allegra.UUCP (Don Mitchell)
Newsgroups: net.crypt
Subject: randomized stream ciphers
Message-ID: <6234@allegra.UUCP>
Date: Sun, 3-Aug-86 11:05:42 EDT
Article-I.D.: allegra.6234
Posted: Sun Aug  3 11:05:42 1986
Date-Received: Mon, 4-Aug-86 01:27:00 EDT
Organization: AT&T Bell Laboratories, Murray Hill
Lines: 3

Adding randomness to a message is explored in detail in Rivest and Sherman's
"Randomized Encryption Techniques" from Crypto 82.  They specifically
discuss stream ciphers.