| 摘要 |
Embodiments of the invention relate generally to methods and systems for microprocessor data security, involving data encryption and decryption of stored data in, or in communication with, a computer microprocessor. Such encryption and decryption can be performed on a per-byte basis. Such encryption and decryption involves performing a logic operation on the byte using a decryption key or encryption key to generate a respective decrypted byte or encrypted byte. The key can be fixed or variable or a combination of both. The key is encoded in a dedicated hard-wired key circuit within the microprocessor and accessible to encryption and decryption circuitry within the microprocessor. |
