| 摘要 |
<p>The aim of the present invention is to prevent the use of an electronic certificate by persons other than the holder and to prevent the holder from being harmed in the event of theft or duplication of a certificate. This aim is achieved by means of a method for securing and verifying an electronic certificate (C) issued by an issuing authority (AU) to a holder, wherein said certificate (C) is stored in a memory of a holder-operated user unit (PC) which transmits all part of the data of the certificate (C) to the authority (AU), characterised in that, in an initial setting stage, the authority (AU) determined a network ID (HID) specific to the user unit (PC), and the authority (AU) stores said ID (HID) together with the data of the certificate (C).</p> |
