Data randomization equipment

Details Data randomization equipment Data randomization equipment

1986-11-03

1989-07-18

Buczinski, Stephen C.

Cryptography

Particular algorithmic function encoding

Nbs/des algorithm

380 33, 380 37, 380 46, 380 50, H04K 100

Patent

active

048500194

ABSTRACT:
Input data is split by a splitting part into a plurality of block data having an equal data length to be processed through respective channels. Each channel data is subjected in a function operation part to a function operation in direct or indirect relation to all the other channel data to produce new channel data. Each channel data is subjected in a transform operation part to a transform operation to produce new channel data. All final channel data obtained after function and transform operations are combined by a combining part to obtain randomized data.

REFERENCES:
patent: 3370126 (1968-02-01), Scidmore
patent: 3798360 (1974-03-01), Feistel
patent: 4217586 (1980-08-01), McGuffin
patent: 4409434 (1983-10-01), Basset et al.
patent: 4707839 (1987-11-01), Andren et al.
patent: 4731843 (1988-03-01), Holmquist
"Exhaustive Cryptanalysis of the NBS Data Encryption Standard", by W. Diffie et al., Computer, vol. 10, No. 6, Jun. 1977, pp. 74-84.
"Modular Design of Information Encipherment for Computer Systems", by J. P. Pieprzyk, Computers & Security, vol. 4, No. 3, Sep. 1985, pp. 211-218.
"Structured Design of Substitution-Permutation Encryption Networks", by J. B. Kam et al., IEEE Trans. on Computers, vol. C-28, No. 10, Oct. 1979, pp. 747-753.
"Data Security Device" by P. N. Prentice, IBM Technical Disclosure Bulletin, vol. 19, No. 7, Dec. 1976, pp. 2607-2609.

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