用于物联网的轻量级可净化属性加密方法

By generating a private key pair and a public attribute key for the recipient, the sender performs offline and online encryption, the cloud platform cleans up the ciphertext, and the recipient performs partial and complete decryption. This solves the problems of high computing costs and unreliable servers in the Internet of Things (IoT), and achieves lightweight and cleanable attribute encryption, which is suitable for IoT scenarios.

CN116800415BActive Publication Date: 2026-07-17SHAANXI NORMAL UNIV

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHAANXI NORMAL UNIV
Filing Date
2023-07-18
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing attribute-based encryption technologies are computationally expensive in the Internet of Things (IoT), and outsourced decryption servers are not entirely trustworthy. Therefore, how to prevent servers from maliciously tampering with ciphertext and reduce the computational burden on senders and receivers, and how to achieve a lightweight and clean attribute encryption option, are important research goals.

Method used

The method employs a private key pair and a public attribute key generated for the recipient. The sender performs offline and online encryption, the cloud platform cleans the ciphertext, and the recipient performs partial and full decryption. The computational burden is reduced by using symmetric encryption methods, and the correctness of the decryption is ensured by verifying the results.

Benefits of technology

It achieves privacy-preserving, lightweight, and highly secure attribute encryption, reducing the computational burden on both the sender and receiver, preventing unauthorized communication, and is suitable for IoT scenarios.

✦ Generated by Eureka AI based on patent content.

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Abstract

一种用于物联网的轻量级可净化属性加密方法,由生成密钥、发送方发送密文、云平台净化密文、接收方获取密文步骤组成。发送方离线 / 在线加密明文后上传至云平台进行密文净化和密文存储;接收方向云平台提交密文获取请求,云平台验证接收方身份后将净化后的密文返回给接收方;接收方将净化后的密文发送给第三方服务器进行外包解密,使用自己的私钥对外包解密后的密文执行一个指数操作完全解密密文。本发明用于物联网场景中,可以通过限制密文数据的访问,实现轻量级的安全数据共享,并且具有支持访问策略隐藏、离线 / 在线加密、无密钥净化、可验证的外包解密等特性,具有隐私性、轻量级、安全性高等优点。
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