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INFORMATION PROCESSING SYSTEM FOR TREATING SIGNATURE POLICY, SIGNATURE POLICY USING METHOD, SIGNATURE POLICY USING PROGRAM, AND COMPUTER-READABLE STORAGE MEDIUM RECORDING THE PROGRAM
INFORMATION PROCESSING SYSTEM FOR TREATING SIGNATURE POLICY, SIGNATURE POLICY USING METHOD, SIGNATURE POLICY USING PROGRAM, AND COMPUTER-READABLE STORAGE MEDIUM RECORDING THE PROGRAM
PROBLEM TO BE SOLVED: To provide a new technique for eliminating uncertainties in verification of an electronic signature.;SOLUTION: In this information processing system, an electronic signature policy issuer forms an electronic signature policy, assigns an electronic signature thereto, and provides the resulting electronic signature policy with signature to a signer. The signer acquires the electronic signature policy with signature from the issuer, forms an electronically signed document, and transfers the electronically signed document with the signature policy with signature to a verifier. The verifier acquires the electronically signed document and the electronic signature policy with signature from the signer, verifies the electronic signature of the electronic signature policy, and verifies the electronically signed document based on the electronic signature policy. According to this, the verifier can surely acquire the electronic signature policy issued by the electronic signature policy issuer from the signer regardless of a communication fault between the verifier and the signature policy issuer, and verify the electronically signed document based on this.;COPYRIGHT: (C)2005,JPO&NCIPI
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