| 摘要 |
The invention relates to a method to store a data item in a memory (21) of a server (20) and a server (20) to store data items of a multiplicity of secure elements (10, 10a, 10b, 10c). A first compression key (25) is assigned to a first data item. According to the method, the server (20) receives (S3) a second data item to be stored on the server from a secure element (10, 10a, 10b, 10c) and stores (S5) the second data item in the memory (21) of the server (20). Further, the server (20) provides (S11) the second data item to the secure element (10, 10a, 10b, 10c). The server generates (S6.1) a second compression key (26) by the server (20) with respect to the second data item and sends in advance (S7.1) the second compression key (26) to the secure element (10). |
