| 摘要 |
To prevent fraud, a magnetic card's ID, which may be a stripe ID or security chip, is converted to an encrypted card ID, which is stored on the card and in a database. Information about the card's history is captured, encrypted, and stored on the card and in a database. To validate the card, the magnetic card ID on the card is again converted to the card ID. This card ID is then compared with the card ID for that card in the database. The card history data stored on the card may also be compared, for validity and to determine points of fraud, with the card history data stored in the database. The data in the card's magnetic card ID can also be compared with the decrypted data in the card ID stored on that card to help determine the card's validity, for example, when the database is inaccessible. Card data about the account holder, stored on the card's magnetic stripe, may also be used to create the card ID for verification. |
