Memory controller and memory device including the memory controller

摘要

A memory controller includes a security key and parameter storage unit and a security engine. The security key and parameter storage unit stores at least one security key and at least one parameter that are used during encryption or decryption. The security engine receives encrypted data stored in an external boot memory, decrypts the received encrypted data by using the security key and the parameter, and outputs the decrypted data to a central processing unit (CPU), in a security operation mode.

主权项

1. A memory controller comprising:
a security key and parameter storage unit storing a plurality of security keys and a plurality of parameters that are used during encryption and decryption, wherein the security key and parameter storage unit selects one of the security keys and one of the parameters based on a control signal received from a central processing unit CPU; and in a security operation mode, a security engine configured to receive encrypted data stored in an external boot memory, decrypt the received encrypted data by using the selected security key and parameter, and output the decrypted data to the CPU, and configured to encrypt data transmitted from the CPU by using the selected security key and parameter, and output the encrypted data to the external boot memory.