发明名称 |
Memory card |
摘要 |
A memory card has: a flash memory chip for storing digital certificates and a seed of random numbers; a controller chip which can execute a managing process for managing the digital certificates and a random number generating process for generating the pseudo random numbers by using the seed of random numbers; and an IC card chip which can execute an authenticating process for authenticating personal identification information (PIN) inputted from a host apparatus and an encrypting process for encrypting the seed of random numbers. Thus, a processing time of security processes is reduced while assuring safety of the security processes.
|
申请公布号 |
US2004059916(A1) |
申请公布日期 |
2004.03.25 |
申请号 |
US20030636666 |
申请日期 |
2003.08.08 |
申请人 |
MIZUSHIMA NAGAMASA;TSUNODA MOTOYASU;KATAYAMA KUNIHIRO |
发明人 |
MIZUSHIMA NAGAMASA;TSUNODA MOTOYASU;KATAYAMA KUNIHIRO |
分类号 |
G06K19/10;G07F7/10;G09C1/00;H04L9/10;H04L9/32;(IPC1-7):H04L9/00 |
主分类号 |
G06K19/10 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|