IC card which can set security level for every memory area
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United States of America Patent
Stats
-
Mar 29, 1988
Grant Date -
N/A
app pub date -
Jul 30, 1986
filing date -
Jul 31, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An IC card which can set a security level for every memory area. A plurality of memory areas for storing data in accordance with the kinds of data; a secret identification number area for storing a plurality of secret identification numbers; a security level memory area for storing the input condition of the input secret identification number consisting of at least one of the secret identification numbers so as to specify this input condition for each memory area; and means for allowing the relevant memory area to be accessed after confirming that the secret identification number or numbers according to a predetermined security level were input.
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