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:
Sep. 05, 1995
Filed:
Apr. 13, 1993
Applicant:
Inventor:
Benjamin Arazi, Omer, IL;
Assignee:
Fortress U&T Ltd., Beer Sheva, IL;
Primary Examiner:
Int. Cl.
CPC ...
H04L / ; G06F / ; G06F / ;
U.S. Cl.
CPC ...
380 30 ; 380 23 ; 380 25 ; 380 49 ; 380 50 ; 364746 ; 3647461 ; 364754 ;
Abstract
A Digital Signature Device includes hardware device for carrying out an operation AB2.sup.-n mod N and an operation AB mod N, and carrying out modular exponentiation and modular multiplication based on an operation AB2.sup.-n mod N and an operation AB mod N. A method of performing an operation AB2.sup.-n mod N, an operation AB mod N, modular exponentiation, and modular multiplication by using hardware device, such as electrical controller, feeder, and delay device, etc.