Microprocessor configuration with encryption

Details Microprocessor configuration with encryption Microprocessor configuration with encryption

2007-09-11

2007-09-11

Moise, Emmanuel L. (Department: 2137)

Electrical computers and digital processing systems: support

Data processing protection using cryptography

C713S168000, C726S026000, C380S268000, C380S274000, C380S262000

Reexamination Certificate

active

10197789

ABSTRACT:
A microcontroller for security applications includes an encryption unit between a bus and a functional unit. The encryption unit includes a gate and a key register. A memory is provided with a further encryption unit whose gate is connected between the register and the gate of the first encryption unit. As a result, the transferred information item is available in encrypted form at any point on the bus.

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