Program writable IC card and method thereof
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United States of America Patent
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-
Aug 30, 2005
Issued Date -
N/A
app pub date -
Aug 22, 2001
filing date -
Sep 3, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An IC card and a method thereof for adding or changing a program for a memory for writing without adversely affecting the function of the IC card and by keeping the security of a program to be written later by restricting writing by a write control program having a decryption function or a program code conversion function.
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