A software-implemented key security storage method, system, device and medium

The key security storage method implemented by software solves the problems of high cost and easy damage to HSM hardware in intelligent connected vehicles, realizes the secure storage and management of keys, reduces hardware dependence, and improves the security of information processing.

CN117220871BActive Publication Date: 2025-03-18DONGFENG MOTOR GRP
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Patent Information

Application Number
CN202311258905.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-09-26
Publication Date
2025-03-18
Estimated Expiration
2043-09-26

AI Technical Summary

Technical Problem

In intelligent connected vehicles, HSM hardware is expensive and once damaged, it will affect the security of information processing and make the chip unusable.

Method used

The key security storage method implemented by software is used to generate a new key by setting a security algorithm and default password, and encrypt the key information data using the KDF algorithm, and store it in a secure storage file.

Benefits of technology

It reduces the hardware cost of key storage, improves the security of keys, avoids the insecurity of information processing caused by HSM hardware corruption, and supports the secure use and deletion of keys.

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Abstract

The present invention discloses a software-implemented secure storage method, system, device and medium for keys, the method comprising: setting a security algorithm and a default password; adding key information data in a specified format, including a key ID, a key type, a key length and corresponding key data; managing the key, including secure storage of the added key information data, secure use of the key and secure deletion of the key. The present invention is implemented purely by software, and while ensuring the security of the key, it can be adapted to various chips and systems, shorten the development cycle, and is easy to maintain and upgrade.
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