Method of performing multiplication operation in binary extension finite field
US9311052B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 20, 2013 |
| Grant date | Apr 12, 2016 |
| Priority date | — |
| Expiry date | Aug 30, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F7/523
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In a method of performing a multiplication operation in a binary extension finite field, a polynomial defined byis produced by expanding polynomial basis multiplication for multiplication of two polynomials a(z) and b(z) in a binary extension finite field. A mapping table is generated in which bit values having pieces of information about respective terms of the produced polynomial are mapped to respective rows. A code for calculating the polynomial, produced by expanding the polynomial basis multiplication for the multiplication of the two polynomials, with reference to the mapping table is generated. A multiplication operation of the two polynomials a(z) and b(z) in the binary extension finite field is performed by executing the code for calculating the polynomial whereinand W denotes a number of bits of a word that is an operation processing unit of a processor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.