| 摘要 |
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. |
