基于全同态加密的多重像素值排序算法  

Multiple Pixel Value Ordering Algorithm Based on Fully Homomorphic Encryption

作　　者：葛斌[1] 沈亚晴 张子玄 GE Bin;SHEN Yaqing;ZHANG Zixuan

机构地区：[1]安徽理工大学计算机科学与工程学院,安徽淮南232001

出　　处：《淮南师范学院学报》2025年第2期136-141,共6页Journal of Huainan Normal University

基　　金：安徽省自然科学基金青年项目“复杂场景下基于伪深度信息的显著性目标检测方法研究”(2108085QF258)。

摘　　要：针对现有可逆信息隐藏算法的嵌入性能不佳的问题,文章提出了一种基于全同态加密的多重像素值排序算法。该算法由基于Paillier全同态加密的嵌入算法和多重像素值排序算法组成。加密嵌入算法通过结合流密码加密保障嵌入数据的安全性,并利用同态性质以实现不同情况下多方的数据嵌入;像素值排序算法通过加强平滑像素之间的相关性利用而增大嵌入容量。经过实验分析,该算法的嵌入性能相较于其他算法平均提高了5.78%。Aiming at the poor embedding performance of existing reversible data hiding algorithms,this paper proposes a multiple pixel value ordering algorithm based on full homomorphic encryption.The algorithm consists of an embedding algorithm based on Paillier's full homomorphic encryption and a multiple pixel value ordering algorithm.The encrypted embedding algorithm guarantees the security of the embedded data by combining stream cipher encryption and exploits the homomorphic property to achieve multi-party data embedding in different situations;the pixel value ordering algorithm increases the embedding capacity by enhancing the correlation exploitation between smooth pixels.After experimental analysis,the embedding performance of this paper's algorithm is improved by 5.78%on average compared with other algorithms.

关 键 词：全同态加密 Paillier 像素值排序 可逆信息隐藏 

分 类 号：TP309.7[自动化与计算机技术—计算机系统结构]