| 摘要 |
PROBLEM TO BE SOLVED: To provide a block cipher that secures data by encrypting the data based on the memory address where the data is to be stored.SOLUTION: When encrypting data for storage in the memory address, the memory address is encrypted in a first plurality of block cipher rounds. Data round keys are generated using information from the rounds. Data to be stored is combined with the memory address, encrypted in a second plurality of block cipher rounds by using the data round keys, and then stored in the memory location. When decrypting data, the memory address is again encrypted while the encrypted stored data is decrypted in the second plurality of block cipher rounds by using the data round keys to obtain a partially decrypted data. The partially decrypted data is combined with the encrypted memory address to obtain fully decrypted data. |
