IC card and IC chip module

Details IC card and IC chip module IC card and IC chip module

2006-02-21

2006-02-21

Sheikh, Ayaz (Department: 2131)

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Protection at a particular protocol layer

C713S193000, C713S194000, C902S002000, C902S026000, C902S027000, C902S028000, C902S029000, C705S064000, C235S375000, C235S380000, C235S382000, C235S487000, C380S001000, C380S001000, C380S052000, C711S163000, C711S164000

Reexamination Certificate

active

07003678

ABSTRACT:
In an IC card30is sealed an IC chip70provided with an exposure sensor84. When exposure sensor84detects that IC card30has been opened, exposure sensor84outputs an exposure detection signal to a CPU76. In response to the exposure detection signal, CPU76provides a predetermined operation, such as erasure of data in a non-volatile memory78. As such, the data in non-volatile memory78cannot be obtained if IC card30is improperly opened to check the data in non-volatile memory78. Thus the IC card can obtain an enhanced data security.

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