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:
Feb. 17, 1998
Filed:
Mar. 31, 1995
Applicant:
Inventors:
Assignee:
Korea Telecommunication Authority, Seoul, KR;
Primary Examiner:
Int. Cl.
CPC ...
H04L / ; H04L / ; H04L / ;
U.S. Cl.
CPC ...
380 25 ; 380 23 ; 380 30 ; 380 49 ;
Abstract
A method for exchanging an authentication and signing an electronic signature, capable of providing a high security and achieving a high efficiency. The method includes the steps of setting p, q and g as system parameters, where p and q are prime numbers while g is an integer, between 1 and p, having the value of 1 when multiplied by the q-th power and then divided by p, and using n secret keys and n public keys for each user, where n is a number not less than 2, the public keys v.sub.n respectively corresponding to the secret keys S.sub.n, integers between 1 and q, and being produced based on an equation of v.sub.n =g.sup.-sn mod p.