Variant key matrix cipher system

Details Variant key matrix cipher system Variant key matrix cipher system

1980-06-30

1982-06-01

Birmiel, Howard A.

Telegraphy

Systems

Printing

178 2219, H04L 900

Patent

active

RE0309575

ABSTRACT:
This is a cipher system for enciphering a stream of binary data by means of a product cipher. A clear message represented in a binary data format is transformed into a cipher message by operating on each bit of clear information with a complex modulo-two addition function. This function is dependent on previous internal cipher digits transmitted and varies for each message bit processed. The function is developed by continually shifting a key matrix under the control of a varying control matrix. The control matrix is formed from the sub-product of the complex function developed in generating each cipher bit.

REFERENCES:
patent: 3557307 (1971-01-01), Florin et al.
patent: 3624610 (1971-11-01), Warring
patent: 3657699 (1972-04-01), Rocher
patent: 3681708 (1972-08-01), Olmstead
patent: 3700806 (1972-10-01), Vasseur
patent: 3740475 (1973-06-01), Ehrat
patent: 3781472 (1973-12-01), Goode et al.
patent: 3798359 (1974-03-01), Feistel
patent: 4181816 (1980-01-01), Vasseur

Affiliated with

Also associated with

Rating

Variant key matrix cipher system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Variant key matrix cipher system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Variant key matrix cipher system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1843599