Patent · US Expired

Modulo arithmetic processor chip

US4891781A · kind A · utility

32Cited by
22References
44Claims
0Family size

Assignee

Inventor

Key dates

Filing dateDec 22, 1988
Grant dateJan 2, 1990
Priority date
Expiry dateDec 22, 2008

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG06F2207/3816
  • WIPO fieldComputer technology
  • WIPO sectorElectrical engineering

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.