Encryption method for generating secret key based on chip power consumption

Through the encryption method of generating keys based on chip power consumption, the security and cost problems of key generation and verification in the prior art are solved, the stability and flexibility of the key are realized, and the overall performance of the encryption system is improved.

CN119848894APending Publication Date: 2025-04-18XIAN ZHONGKE XIGUANG AEROSPACE TECHNOLOGY GROUP CO LTD
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Patent Information

Application Number
CN202411923176.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-25
Publication Date
2025-04-18

AI Technical Summary

Technical Problem

The prior art has problems such as limited security, high management costs and increased hardware costs when generating and verifying keys, and the physically uncloned methods lead to instability of keys due to environmental factors.

Method used

The encryption method based on chip power consumption generation key is adopted, and the initial key ID is generated through the steps of power consumption trajectory sampling, data processing, feature extraction and key generation, and the stability and consistency of the key are ensured through the preset ID comparison and variance judgment of the initial key ID.

Benefits of technology

It significantly improves security, reduces costs, improves flexibility, can be customized according to different application scenarios and security needs, and supports dynamic key updates to ensure the security and reliability of the encryption system.

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Abstract

The invention belongs to the technical field of information security, and discloses an encryption method for generating a key based on chip power consumption, and the encryption method of the key comprises the following steps: 1, sampling a power consumption track; step 2, data processing; step 3, feature extraction; step 4, generating a key; step 5, presetting ID comparison judgment; step 6, variance judgment of the initial secret key ID; step 7, judging consistency; step 8, judging inconsistency; and step 9, comparing inconsistency. According to the method, the encryption key is generated by using the random variable, namely the power consumption during chip operation, so that the safety is remarkably improved, and even if an encryption algorithm and a communication protocol are mastered, the encryption algorithm and the communication protocol are difficult to crack; meanwhile, secret key generation and management can be achieved only through a conventional current measuring circuit, cost is remarkably reduced, and the risk that external storage depends on is reduced; in addition, the method also supports customized design and dynamic key updating, shows extremely high flexibility, and ensures the security and reliability of an encryption system.
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