| 摘要 |
The present invention deals with a method for securely downloading from distributed download sources. The greatest possible download security with a simultaneously minimized server load is achieved in this case. The object of the present invention was to provide an improved download method which also allows simple servers, without the possibility of setting up a secure connection, to be used as download servers and allows the total CPU load on the servers involved to be minimized, wherein the data transmission security can he kept the same, in comparison with a download from a single server, via a secure connection. This object is achieved by the method according to the invention for securely downloading from distributed download sources according to the main claim with the aid of a secure database server, a secure main server and 1 to n non-secure download servers, wherein the non-secure download servers newly encrypt the symmetrically encrypted download packets at predefined intervals of time independently of the secure main server. |
