数据加密的错误侦测装置
By introducing redundant data and redundant keys into the AES encoder, the problem of errors generated by the AES encoder in harsh environments is solved, achieving efficient error detection and cost control.
CN116318622BActive Publication Date: 2026-07-17SILICON MOTION INC
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SILICON MOTION INC
- Filing Date
- 2022-09-30
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
Existing Advanced Encryption Standard (AES) encoders may produce unexpected computational results under malicious attacks, chip defects, or harsh environments, leading to unrecoverable user data. Furthermore, existing error detection methods increase encoder area and cost.
Method used
Design an error detection device for data encryption, comprising an encoding circuit and an error checking circuit. By using redundant data and redundant keys for error detection during the encryption process, the area of the encoding circuit is reduced.
Benefits of technology
It effectively detects errors in the encryption process, reduces the area of the encoding circuit, lowers manufacturing costs, and ensures the security and recoverability of user data.
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Figure CN116318622B_ABST
Abstract
本发明涉及一种数据加密的错误侦测装置。该装置包含：编码电路；和错误检查电路。编码电路设置以实现加密算法，其中，加密算法包含多个回合，并且在每个回合中使用回合密钥对明文或者中间加密结果进行编码。错误检查电路设置以预测出相应于明文或者中间加密结果的冗余数据；并且在加密过程中的指定中间点发现中间加密结果和冗余数据不匹配时，发出错误信号给处理单元。通过以上所述错误检查电路的设置，可利用比编码电路较少面积的电路来完成错误侦测。
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