SOC security chip key information integrity storage and error self-repair method

Abstract

The invention discloses an SoC security chip secret key information integrity storage and error self-repairing method. In the storage and access process of the key information, a protection measure for integrity and error self-repairing of the key information is provided to ensure the integrity of the key information obtained by access, so that the safety and reliability of a chip are ensured. Themethod comprises the steps of secret key information check bit adding, backup storage, continuous integrity checking and error repairing. The key information is added with a check bit and stored in abackup manner to complete integrity check and error self-repair of the key, and if the accessed key information is subjected to CRC (cyclic redundancy check) error, the redundant storage area is usedfor storing the correct key to achieve a continuous check and repair effect, so that the correct access of the key information is ensured. According to the method, the integrity of the key information can be better protected, meanwhile, the repair of the physical fault of the key storage area is covered, and the system reliability is improved.

Description

technical field [0001] The invention relates to the field of integrated circuit information storage, in particular to the integrity storage and error self-repair method of security chip key information. Background technique [0002] With the rapid development of the integrated circuit industry, integrated circuit technology has been integrated into all walks of life and people's daily life. However, with the upsurge of informatization construction and high-complexity and high-precision applications, computer and network accidents and crimes continue to appear, and the problems of information security and application stability have become increasingly prominent. For example, the storage system of important data information is unstable, and important information is illegally tampered with, which may lead to the loss or damage of important data, and cause various losses without the user's knowledge. So how to consider the integrity storage of important information, and how to ...

AI Technical Summary

Problems solved by technology

However, the above existing technologies do not take into account the possible instability of the storage medium during the life cycle of the SoC security chip, that is, the failure of the storage unit during the use of the chip, and whether the key information can be repaired when the integrity of the key information is wrong.

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