IC CARD OF PROVIDING SOURCE AND OF PROVIDING DESTINATION, INTERMEDIARY DEVICE FOR INFORMATION TRANSFER, SYSTEM FOR TRANSFERRING INFORMATION BETWEEN IC CARDS IC CARD PROGRAM, PROGRAM, AND METHOD FOR TRANSFERRING INFORMATION BETWEEN IC CARDS

摘要

PPROBLEM TO BE SOLVED: To provide the IC card of an providing source, the IC card of providing destination, an intermediary device for information transfer, a system for transferring information between the IC cards, an IC card program, a program, and a method for transferring information between the IC cards which securely and easily transfer object information between the IC cards, improve the convenience, match the actual situation, and have strong posibility. PSOLUTION: The system 1 for transferring information between the IC cards provides data A from an old card 20 to a new card 30 via an issuer device 10. The old card 20 concerning the data A encrypts by a public key Pub_A of the issuer, affixes an electronic signature by a secret key Pri_O, and generates data A (1). The issuer device 10 verifies the electronic signature of the data A (1), decodes it into the data A, encrypts by a public key Pub_N of the new card 30, affixes an electronic signature by a secret key Pri_A, and generates data A (2). The new card 30 verifies the electronic signature of the data A (2), and decodes it into the data A. PCOPYRIGHT: (C)2004,JPO&NCIPI