| 摘要 |
<p>A data archiving method uses automatic encoding and decoding in which during filing of data (9,10) data is transferred from a customer station (1) to a security device (2) for encoding and transfer to an archive station (4). During requesting of data the data is transferred from the archive station to the security device (20 where it is decoded and transferred to the customer station (1). At least a first and a second key are used for encoding and decoding the data in which the second key (7) at least at times between encoding and decoding is swapped and locally erased in the security device.</p> |
