三重混沌映射在密码学中的应用
Applications of tripled chaotic maps in cryptography
摘要：
在过去的几十年里，信息安全已经成为一个主要问题。基于混沌映射的多媒体数据保护新算法被提出来，特别是针对数字图像和视频的保护。然而，其中许多从根本上来说都存在缺陷，缺乏健壮性和安全性。为了获得更高的安全性和更高的复杂度，本文提出了一种新的基于\emph{tripled chaotic maps}的对称密钥分组密码算法。该算法利用了两个耦合参数，同时增加了密码系统的复杂度，为发展更高安全性的密码系统做出了贡献。为了提高算法的安全性，需要增加密钥空间的大小和耦合参数的计算复杂度。理论和实验结果表明，该算法具有可接受的速度和算法复杂度（由于存在两个耦合参数）以及较高的安全性。请注意，密文具有平坦分布，并且与明文具有相同的大小。因此，它适合于在保密通信中的实际应用。
英文摘要：
Security of information has become a major issue during the last decades. New algorithms based on chaotic maps were suggested for protection of different types of multimedia data, especially digital images and videos in this period. However, many of them fundamentally were flawed by a lack of robustness and security. For getting higher security and higher complexity, in the current paper, we introduce a new kind of symmetric key block cipher algorithm that is based on \emph{tripled chaotic maps}. In this algorithm, the utilization of two coupling parameters, as well as the increased complexity of the cryptosystem, make a contribution to the development of cryptosystem with higher security. In order to increase the security of the proposed algorithm, the size of key space and the computational complexity of the coupling parameters should be increased as well. Both the theoretical and experimental results state that the proposed algorithm has many capabilities such as acceptable speed and complexity in the algorithm due to the existence of two coupling parameter and high security. Note that the ciphertext has a flat distribution and has the same size as the plaintext. Therefore, it is suitable for practical use in secure communications.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
