关于Yen-Guo多米诺信号加密算法（DSEA）的安全性
On the security of the Yen-Guo's domino signal encryption algorithm (DSEA)
摘要：
近年来，一种新的多米诺信号加密算法（DSEA）被提出用于数字信号的传输，特别是数字图像和视频的传输。本文分析了DSEA的安全性，指出其存在以下缺陷：1）对蛮干攻击的安全性估计过高; 2）对纯密文攻击的安全性不足，仅一个密文就足以得到明文的部分信息并破解子密钥的值; 3）在秘密密钥可以从仅一个已知/选择的明文和对应的密文的多个连续字节恢复的意义上，其对于已知/选择的明文攻击是不安全的。给出了实验结果来展示所提出的攻击的性能，并讨论了改进DSEA的一些对策。
英文摘要：
Recently, a new domino signal encryption algorithm (DSEA) was proposed for digital signal transmission, especially for digital images and videos. This paper analyzes the security of DSEA, and points out the following weaknesses: 1) its security against the brute-force attack was overestimated; 2) it is not sufficiently secure against ciphertext-only attacks, and only one ciphertext is enough to get some information about the plaintext and to break the value of a sub-key; 3) it is insecure against known/chosen-plaintext attacks, in the sense that the secret key can be recovered from a number of continuous bytes of only one known/chosen plaintext and the corresponding ciphertext. Experimental results are given to show the performance of the proposed attacks, and some countermeasures are discussed to improve DSEA.
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。
