发明名称 Processo de modificação segura de dados em um cartão inteligente
摘要 The invention pertains to a method of securely transferring data, such as program data, to a smart card. In order to be applicable in non-secure environments, the method of the invention involves a one-way authentication mechanism, comprising the use of a series of interrelated authentication values (R0, R1, R2, ...). Further security is achieved by using commands (INIT, TRAN) which are provided with an authentication code (MAC0, MAC1, ...). In order to transfer data only to selected cards, the card may accept transfer commands only if a card profile (CP) matches a distribution profile (DP). <IMAGE>
申请公布号 BR9708017(A) 申请公布日期 1999.07.27
申请号 BR19979708017 申请日期 1997.03.07
申请人 KONINKLIJKE PTT NEDERLAND N.V. 发明人 MICHEL MARCO PAUL DRUPSTEEN;FRANK MULLER
分类号 G06F12/14;G06F21/24;G06K17/00;G06Q20/34;G06Q40/00;G07F7/10;(IPC1-7):G07F7/10 主分类号 G06F12/14
代理机构 代理人
主权项
地址
您可能感兴趣的专利