19004697. HARDWARE PROTECTION OF INLINE CRYPTOGRAPHIC PROCESSOR (TEXAS INSTRUMENTS INCORPORATED)
HARDWARE PROTECTION OF INLINE CRYPTOGRAPHIC PROCESSOR
Organization Name
TEXAS INSTRUMENTS INCORPORATED
Inventor(s)
Amritpal S. Mundra of Allen TX US
William C. Wallace of Richardson TX US
HARDWARE PROTECTION OF INLINE CRYPTOGRAPHIC PROCESSOR
This abstract first appeared for US patent application 19004697 titled 'HARDWARE PROTECTION OF INLINE CRYPTOGRAPHIC PROCESSOR
Original Abstract Submitted
A real time, on-the-fly data encryption system is operable to encrypt and decrypt data flow between a secure processor and an unsecure external memory systen. Multiple memory segments are supported, each with its own separate encryption capability, or no encryption at all. Data integrity is ensured by hardware protection from code attempting to access data across memory segment boundaries. Protection is also provided against dictionary attacks by monitoring multiple access attempts to the same memory location.