MAC Memos (1963 - 1974): Recent submissions
Now showing items 19-21 of 57
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An Enciphering Module for Multics
(1974-07)Recently IBM Corporation has declassified an algorithm for encryption usable for computer-to-computer or computer-to-terminal communications. Their algorithm was implemented in a hardware device called Lucifer. A software ... -
Complete Classification of (24,12) and (22,11) Self-dual Codes
(1974-06)A complete classification is given of all [22, 11] and [24, 12] self-dual codes. For each code we give the order of its group, the number of codes equivalent to it, and its weight distribution. There is a unique [24, 12, ... -
The Reduction Method for Establishing Lower Bounds on the Number of Additions
(1974-06)A method for establishing lower bounds on the number of multiplications and divisions has been developed by Pan, Winograd and Strassen. A similar method is developed for establishing lower bounds on the number of additions ...