| 摘要 |
An arrangement for storing data (e.g. swapfiles) in computer equipment (4) comprising a first memory location (1), e.g. a volatile memory, for temporary storage of data for instance for the time of processing, and a second memory location (2), e.g. a non-volatile memory, for longer-term storage of data when desired. Ciphering means (3) converts the data into an encrypted mode with an exchangeable encryption key and into a decrypted mode by a corresponding decryption key. The arrangement also comprises a ciphering key generator (7) for generating at least one random encryption key (5) and a corresponding decryption key (6) for each discrete session. The encryption and decryption keys (5, 6) am retained during a session and their use is prevented after completion of the session, e.g. because they were stored in the volatile memory. <IMAGE> |
