Process for protection against fraudulent use of smart cards, and device for use of the process
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 10, 1992
Grant Date -
N/A
app pub date -
Oct 31, 1990
filing date -
Nov 3, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
To prevent a person having found or stolen a card of a pay-television subscriber from using it fraudulently, the identity of the subscriber is recorded in a zone protected from reading and writing. At the beginning of the period of use of a new card, the new card compares the identity of the new card with that of the old one, and delivers the password only if the two identities are the same.
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