ELECTRONIC SEAL GENERATION DEVICE, ELECTRONIC SEAL CERTIFICATE ISSUING DEVICE, ELECTRONIC SEAL SIGNING DEVICE, ELECTRONIC SEAL AUTHENTICATION DEVICE, AND SYSTEM AND METHOD FOR ELECTRONIC SIGNATURE

摘要

PROBLEM TO BE SOLVED: To improve convenience for a person to handle an electronic document by using authentication by an electronic signature and visual recognition by a conventional signature and an imprint of a seal together, to certify the truth of the electronic document.;SOLUTION: An electronic seal generation device 10 reads an imprint SF of a seal ST as information on the imprint and records it in an IC card C1 for the imprint information together with a public key. An electronic seal certificate issuing device 20 gives a certificate provided with a certification seal proving that the imprint information and the public key stored in the IC card C1 are genuine, and records the certificate in the IC card C1. An electronic seal signing device 30 attaches the imprint information to the electronic document and also creates a signed document provided with a signature of the electronic document holder. An electronic seal authentication device 40 judges the truth or falsehood of the electronic document based on the signed document and the certificate, and makes it possible to visually authenticate the document by displaying the imprint information attached to the signed document and the imprint information included in the certificate.;COPYRIGHT: (C)2002,JPO