PROTECTION AGAINST INDIRECT CHANGES IN DRAM DURING READY MODE

摘要

Systems, procedures and facilities related to the protection of data stored in volatile memory of a computer system during standby mode. In one approach, a first signature is generated for data stored in volatile memory. In some cases, the stored data may include sensor data obtained from one or more sensors of a vehicle, mobile device or other electronic device. The first signature is stored in a non-volatile memory device and then the computer system enters standby mode. The following:after exiting standby mode, a second signature is generated for the data stored in the volatile memory. The first signature is read from the non-volatile memory device and compared with the second signature. A signature difference indicates that an unwanted change has occurred in the data stored during standby mode. One or more remedial actions are performed by the computer system in response to this signature difference.