MEMORY CONTROLLER

摘要

A memory controller used to verify authenticity of data stored in a first memory unit. The memory controller includes a secure memory unit which stores a pre-stored value representative of the authenticity of the data to be written in the first memory unit. A processing system calculates a value which is representative of the data in the first memory unit after a write cycle. The calculation of the calculated value is triggered by the write cycle. The calculated value is compared with the pre-stored value in order to verify whether the data stored in the first memory unit after the write cycle has been altered in accordance with the authenticity. By comparing the calculated value with the pre-stored value authenticity of the data stored in the first memory unit after the write cycle is verified, thus preventing the memory controller from operating in case the data written to the first memory unit is not authentic.

主权项

1. A memory controller for verifying authenticity of data in a first memory unit, the memory controller comprising:
a secure memory unit storing a pre-stored value representative for the authenticity of the data to be written into the first memory unit, and a processing system configured for calculating a calculated value being representative for the data in the first memory unit after a write cycle, the processing system being further configured for calculating the calculated value triggered by the write cycle and for comparing the calculated value with the pre-stored value for verifying whether the data in the first memory unit after the write cycle has been altered in accordance with the authenticity.