| 摘要 |
Techniques and logic are presented for encrypting and decrypting programs and related data within a multi-processor system to prevent tampering. The decryption and encryption may be performed either between a system bus and a processor's individual L1 cache memory or between a processor's instruction and execution unit and their respective L1 caches. The logic may include one or more linear feedback shift registers (LFSRs) that may be used for generation of unique sequential address related codes to perform the decryption of instructions and transformation logic that may be used for generation of equivalent offset address related codes to perform decryption and encryption of data. The logic may also be programmable and may be used for test purposes. |
