| 摘要 |
The invention relates to a method for transmitting data in a processed manner on a communication channel, in which a first series (1) of data is converted into a second series (2) of data by means of a first operation (P), the second series (2) of data is transmitted on the communication channel and the second series of data is then converted into a third series (3) of data by means of a second operation (P'). Check data (4) are formed on the basis of the first series (1) and are added to the second series (2). Subsequently, the integrity of the third series (3) is checked using the check data (4). The operations may comprise, respectively, data compression and data decompression. The check data are subjected to a protection operation (S) before they are added to the second series. Preferably, the method takes place at layer 3 of the so-called OSI model. The invention furthermore provides devices for using the method. <IMAGE> |
