公开(公告)号：FR2735308B1

公开(公告)日：2004-01-30

申请号：FR9606154

申请日：1996-05-17

Applicant: KOREA TELECOMM AUTHORITY

Inventor： AHN KEUM HYUG ,  LEE YUN HO ,  PARK ILL HWAN ,  JANG CHUNG RYONG

IPC: H04L9/30 ,  G06F9/06 ,  G09C1/00 ,  H04L9/32 ,  H04L12/22

Abstract: An identification scheme, a digital signature scheme giving message recovery, and a digital signature scheme with appendix are disclosed. In processing and transmitting information, a transmitting counterpart of a transmission message is confirmed. The unauthorized modification of the message is confirmed and transmitting behavior is detected, thereby providing the reliable information service.