| 摘要 |
<p>The invention relates to a method for providing a certificate (174), wherein the following steps are carried out in a first operating mode of a first computer system (100): a first reading device (112) of the first computer system reads a public key (172) stored in a document (114); the public key (172) is transmitted from the first computer system to a second computer system (134) that is designed to generate the certificate; the first computer system receives the certificate from the second computer system; the certificate is written to the document via the first reading device, wherein the following steps are carried out in place of steps a) to d) in a second operating mode of the first computer system: a locking feature (186) of the document is entered in the first computer system; the locking feature is transmitted from the first computer system to the second computer system that has access to a first database (136) by which the locking feature is allocated to the public key of the document; the certificate is made available for transmission to a third computer system (142) under the condition of a successful authentication with the second computer system using the locking feature; the third computer system receives the certificate; the certificate is written to the document via a second reading device (144) of the third computer system.</p> |
