METHOD FOR ISSUING IC CARD CONTAINING ENCRYPTION KEY INFORMATION
摘要
<p>It is possible to issue an IC card containing unique encryption key information in such a manner that re-issuing is enabled and sufficient security can be assured. An IC card provider X delivers an IC card having a group code G(A) to a company A and an IC card having a group code G(B) to a company B. When a company staff alpha inputs a unique personal code P(alpha) and performs initialization, in the IC card, calculation is performed according to a predetermined algorithm using the P(alpha) and G(A). Data uniquely determined by the calculation is stored as encryption key information K(alpha) in the IC card. Even if the company staff alpha loses the IC card, it is possible to obtain the IC card having the same encryption key information K(alpha) as before by performing initialization again by using the IC card delivered by the IC card provider X.</p>
申请公布号
WO2005109739(A1)
申请公布日期
2005.11.17
申请号
WO2005JP08656
申请日期
2005.05.02
申请人
DAI NIPPON PRINTING CO., LTD.;HANDA, FUKIO;YANO, YOSHIHIRO;CHIKADA, TAKAYUKI;NIWATA, SYOUZOU