ORIGINAL NATURE WARRANT SYSTEM, ELECTRONIC SIGNATURE GENERATION INTERFACE METHOD, ORIGINAL NATURE VERIFICATION INTERFACE METHOD, PROGRAM, AND RECORDING MEDIUM

摘要

PPROBLEM TO BE SOLVED: To provide an original nature warrant system for realizing warranting of an original nature by utilizing functions of existing apparatuses as they area without losing the functions in an optional system. PSOLUTION: An original storage system 1 is provided with an electronic signature generation processing section 11a and an original nature verification processing section 11b on the basis of an existing system for processing at least electronic documents. The electronic signature generation processing section 11a and the original nature verification processing section 11b execute electronic signature production/original nature verification processing while exchanging information with an application section 11c and an original nature warrant system 2. An electronic signature storage section 21 stores the produced electronic signature, which is used for the original nature verification processing. Further, highly accurate time information generated by a time information generating section 23 is used for the time information used for the electronic signature. PCOPYRIGHT: (C)2004,JPO