Method and apparatus for authorizing the holder of a portable object such as a card to gain access to at least one service provided by at least one authorizing entity
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United States of America Patent
Stats
-
Apr 7, 1987
Issued Date -
N/A
app pub date -
Jan 21, 1986
filing date -
Jan 20, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention relates to a method and an apparatus for authorizing the holder of a portable object such as a card to gain access with this card to at least one service provided by at least one authorizing entity. According to the invention, the method enables the holder of a card C to become authorized to have access to a particular service by causing an authorizing datum to be written on his card C by an authorizing system T, causing the calculation by both the card C and the system of a result taking into account at least one secret datum S, comparing in a comparator CC of the card the results calculated, and validating the authorizing datum if the results are identical.
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