Universal galois field multiplier

Details Universal galois field multiplier Universal galois field multiplier

1996-05-30

1998-06-16

Elmore, Reba I.

Boots, shoes, and leggings

G06F 700, G06F 1500

Patent

active

057681686

ABSTRACT:
A universal Galois field multiplier which is adaptable to any form of polynomial having a predetermined n-order when it is controlled by a coefficient of polynomial which defines a Galois field, which includes second AND-gates each for ANDing a corresponding bit value of the multiplicand and one bit value among the remaining bits of the multiplier; first XOR-gates each for XORing a corresponding leftwardly rotated output value of the second AND-gates and a corresponding output value of the preceding operation unit; third AND-gates each for ANDing the corresponding coefficient value of the generating polynomial and a most significant bit value among the output values of the preceding operation unit; and second XOR-gates for XORing output values of the third AND-gates and the first XOR-gates, wherein the second XOR-gates become effective in accordance with outputs of the third AND-gates.

REFERENCES:
patent: 4697248 (1987-09-01), Shirota
patent: 4763330 (1988-08-01), Shimizu
patent: 4875211 (1989-10-01), Murai et al.
patent: 5185711 (1993-02-01), Hattori
patent: 5414719 (1995-05-01), Iwaki et al.
patent: 5502665 (1996-03-01), Im
patent: 5537426 (1996-07-01), Lee

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