A method and arrangements for the encryption of memory data files on mobile terminals

摘要

A method for the encryption of memory data files on mobile terminals, in which from the mobile terminal a charging request (1) down to an application under drawer - server (ads) is transmitted, whereupon the latter, together with a database (scbm) for storage key an extended use (amk) is generated, which in addition to an actually requested original use (a) a memory encryption module (m) and a memory key area (k), by means of a closure in the position request (4) with the aid of a data base (drmdb) for further key the expanded application (amk) are encoded and transmitted to the mobile terminal (6) as well as the mobile terminal separately a further associated key to the decoding of the extended application is sent (7), in which, after the decoding by the use of the new application (amk) in the working memory (ram) of the mobile terminal generated data for the memory data files (f) via the memory encryption module (m) in encrypted memory data files (fe) are converted (denc), before they are in a non-volatile memory (flash) of the mobile terminal (12) are stored.