| 摘要 |
<p>Method for checking authorization incorporating a way to impart to a so-called smart card (SmartCard) an encryption key or equivalent key and including a way to cause a microprocessor, by means of the encryption key and at least one number, to perform a calculation whose result comprises a signature, and including a way to have said signature together with said number transferred to a system for which authorization is to be shown which includes a computer in which said encryption key is stored, said computer being programmed to carry out said calculation to obtain said signature and then to compare the latter signature with the first-mentioned signature.</p> |
