Key generation program, key recording program, key generator, PKI card and key recording system

摘要

PROBLEM TO BE SOLVED: To provide a key producing program, a key recording program, a key producing device, a PKI card, and a key recording system, which can record a private key of the PKI card without impairing the operating property of the PKI card.;SOLUTION: A public key for certification which is used when a private key for signature for use in an electronic signature is recorded in the PKI card, and a private key for certification corresponding to the public key for certification are created; the private key for certification is sent to the PKI card by use of a communication path which secures the safety; a public key certification for certification of the public key for certification is created; a public key for a signature document and a private key for a signature document corresponding the public key for a signature document are created; a public key certification for a signature document of the public key for a signature document is created; the created public key certification for a signature document and private key for a signature document are encoded by the public key for certification indicated by the public key certification for a certificate to create a private key for an encoded signature document; and then the private key for an encoded signature document is sent to the PKI card by use of the communication path which secures the safety or the communication path which does not secure the safety.;COPYRIGHT: (C)2011,JPO&INPIT