IC card including a memory, a password collating means and an ac

Details IC card including a memory, a password collating means and an ac IC card including a memory, a password collating means and an ac

1995-07-14

1998-02-17

Hajec, Donald T.

Registers

Records

Conductive

235382, G06K 1906

Patent

active

057193878

ABSTRACT:
A non-contact type IC card includes a programmable memory divided into a user area for storing application data, and a system area for storing a system password and a system password effective code indicating requirement of collation of the system password. If the system area of the memory includes the system password effective code, access to the system area by an external apparatus is permitted only when passwords are identical as a result of password collation. If the system area does not include the system password effective code, the access by the external apparatus can be permitted without the password collation.

REFERENCES:
patent: 4849614 (1989-07-01), Watanabe
patent: 4882474 (1989-11-01), Anderl
patent: 4885788 (1989-12-01), Takaragi
patent: 4960982 (1990-10-01), Takahira

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