唯密文场景下的分组密码算法识别方法  

Recognition Method for Block Cipher Algorithm in Secret-only Scenario

作　　者：张运理 石元兵 明爽 籍帅 苏攀西 ZHANG Yunli;SHI Yuanbing;MING Shuang;JI Shuai;SU Panxi(China Electronics Technology Network Security Technology Co.,Ltd.,Chengdu Sichuan 610095,China;Trusted Cloud Computing and Big Data Key Laboratory of Sichuan Province,Chengdu Sichuan 610095,China)

机构地区：[1]中电科网络安全科技股份有限公司,四川成都610095 [2]可信云计算与大数据四川省重点实验室,四川成都610095

出　　处：《通信技术》2024年第2期188-192,共5页Communications Technology

基　　金：可信云计算与大数据四川省重点实验室开放课题项目资助。

摘　　要：唯密文场景下的分组密码算法识别方法研究,旨在探讨在仅知道密文的情况下,如何有效地识别出所使用的分组密码算法,这一问题的研究对于提高加密系统的安全性具有重要意义。通过对随机序列随机性检测方法的研究,基于集成学习模型构建了识别模型,实现了唯密文场景下的分组密码算法识别技术,可以有效提取密文数据特征,经实验验证,识别效果优于现有方法。The research on the recognition method of block cipher algorithms in secret-only scenarios aims to explore how to effectively recognize the block cipher algorithms used when only the ciphertext is known.The research on this issue is of great significance for improving the security of encryption systems.Though the research on the randomness detection method of random sequences,the recognition model based on ensemble learning model is constructed,and the recognition technology of block cipher algorithm in secret-only scenario is realized,which can effectively extract the features of ciphertext data.The experimental results verify that the recognition effect of the proposed method is superior to existing methods.

关 键 词：分组密码算法 密码算法识别 特征提取 集成学习 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]