基于相同图像的抗攻击信息隐藏算法研究

The Anti-attack Algorithm Research of the Information Hiding with the Same Image

针对使用相同图像进行信息隐藏时,可能被攻击泄漏密文,提出了一种新的信息隐藏算法.首先对使用同一图像进行两次不同的信息隐藏的情况进行分析,建立了一套基于概率统计理论的密钥分析算法,从而可能提取被隐藏的信息.在此基础上,设计了一个基于随机序列多存储位置的信息隐藏算法,该算法在信息隐藏的位置上进行改进,造成攻击者无法建立有效的概率统计模型,从而达到提高算法强度的目的.文中详细阐述了多位置的信息嵌入过程,并定量地分析了算法抗攻击的性能.

The secrete information may be revealed when use information hiding technology with the same image. Aimed to solve this problem, has proposed a new information hiding algorithm. At first, has analyzed hiding different information two times in the identical image. According to it, has established a set of guessing key algorithm based on the probability statistical theory, thus possible to withdraw the information which hidden. Based on this, has designed one hiding algorithm based on the random multi-storage location information, this algorithm makes the improvement in information hiding position, causes the aggressor to be unable to establish the effective probability statistical model, thus achieves that enhancing the algorithm intensity. In the paper elaborated in detail the information embedded in multiposition, and has analyzed the algorithm anti-attack performance in quota.