| 摘要 |
In a cryptographic method, between a portable data carrier (10) and a terminal device, a public data carrier key (PKG) and a secret data carrier key (SK1) of the data carrier (10) as well as a public terminal key (PKT) and a secret terminal key (SKT) of the terminal device are used. The data carrier (10) uses a static public key as the public data carrier key (PKG). As a secret data carrier key (SK1), the data carrier (10) uses a secret key which is derived from a secret basic key (SKG) associated with the public data carrier key (PKG). In the context of the method, the terminal device checks an authentication parameter (AP) which is associated with the data carrier (10) and which is different from the data carrier keys. |
