| 摘要 |
<p>The invention relates to a method for encoding/decoding messages which are exchanged between a secure device (1) and a defined client device (Cj) in a network of client devices and to a secure device. The method comprises the following steps: asymmetrical cryptographic operations are performed by the secure device (1) and by the defined client device (Cj) respectively with the aid of a private key (nj, dj) and a public key (nj, ej); the private key (nj, dj) corresponding to the public key (nj, ej) of the defined client device (Cj) is determined on the basis of a secret master key (MK) stored in the secure device and at least one public data item (nj, CIDj) sent by the defined client device (Cj).</p> |
