一种抗SPA的非对称信息隐藏算法——ALRS算法

An asymmetric LSB information hiding algorithm of resisting SPA

通过研究样本对分析(SPA)方法,提出一种抗SPA方法非对称最不重要位(LSB)信息隐藏算法——ALRS算法.首先,分析相邻像素结构体的性质;然后,从理论上证明能够找到一个单调的修复图像像素统计特性的相邻像素结构体序列.实验结果表明,该算法不仅能够有效抵抗SPA统计分析方法,而且其算法实现简单,计算量小,性能优于其他算法.

Asymmetric LSB hiding algorithm of resisting SPA（ALRS） is a least significant bit（LSB） information hiding algorithm of resisting sample pair analysis（SPA）,which is able to analyze some properties of the image fixel pairs.Based on the properties,a monotonous sequence of restoration is found by using ALRS.The sequence can amend the statistic properties of the pair.The experiment results show that the method can resiste the attack of SPA and its performance is better than others in the efficiency and security of information hiding.