Freescale Semiconductor,inc.

Joel Feldman

Thomas E Tkacik

Lawrence Loren Case

Mark D Redman

Richard J Swindlehurst

The present disclosure relates generally to semiconductor devices and related methods of operation. A semiconductor device is disclosed that comprises at least one cipher interface () to a plurality of different cipher hardware modules () and central mode control logic (-) responsive to the at least one cipher interface (). The central mode control logic (-) is configured to provide a cipher operation in accordance with a selected cipher mode () in connection with at least one of the plurality of different cipher hardware modules ().

Semiconductor device and method utilizing variable mode control with block ciphers

Methods and apparatus are provided for an electronic device having an autonomous memory checker for runtime security assurance. The autonomous memory checker comprises a controller, a memory reference file coupled to the controller, and an authentication engine coupled to the controller. A check is performed during runtime operation of the electronic device. The autonomous memory checker generates runtime reference values corresponding to trusted information stored in memory. The runtime reference values are compared against memory reference values stored in the memory reference file. The memory reference values are generated from the trusted information stored in memory. An error signal is generated when the runtime reference values are not identical to the memory reference values thereby indicating that the trusted information has been modified.

Autonomous memory checker for runtime security assurance and method therefore

A symmetric key stream processorthat encrypts and decrypts text in accordance with the RC4 algorithm has a main processing blockand a host interface. The main processing blockincludes an Sbox memoryimplemented with a synchronous dual-port RAM and an encryption logic blockwith a finite state machine. The dual port memory architecture is used for efficiency during permutation and message processing.

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Phoenix, AZ, United States of America

Joel Feldman