The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 02, 1990
Filed:
Dec. 22, 1988
Applicant:
Inventor:
Jimmy K Omura, Cupertino, CA (US);
Assignee:
Cylink Corporation, Sunnyvale, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05F / ;
U.S. Cl.
CPC ...
364768 ; 3647461 ; 380 28 ; 380 30 ;
Abstract
The present invention provides for a processor chip for computing addition, multiplication, and exponentiation in a Galois Field of integers modulo a prime number p, GF(p). The invention includes twelve registers for storing n-bit integers, a full adder for shifting left and adding data stored in two of the registers. A feedback register is included for storing a n-bit number and means for generating a feedback number is provided, wherein the feedback number is generated from a prime number, p. Also included are modulo means for reducing data bits stored in the registers modulo a prime number p.