基于Bayes决策的密码算法识别技术  

Cryptogram Algorithm Recognition Technology Based on Bayes Decision-making

作　　者：李继中[1] 蒋烈辉[1] 尹青[1] 刘铁铭[1] 郭佳[1] 

机构地区：[1]解放军信息工程大学信息工程学院,郑州450002

出　　处：《计算机工程》2008年第20期159-160,163,共3页Computer Engineering

基　　金：国家"863"计划基金资助项目(2006AA01Z409)

摘　　要：在可执行代码中识别密码算法对于查找恶意代码、保护计算机系统安全有着重要的意义。该文在对汇编级密码算法特征分析的基础上,提出了汇编级密码算法特征度量元的概念,并采用七维特征向量对其进行形式化描述,建立基于Bayes决策的密码算法识别模型,测试结果表明该模型稳定、准确,能够高效地定位代码中的密码算法。Recognizing cryptogram algorithm from executable codes plays an important significance in checking malicious codes and protecting computer system. This paper brings forward the concept of assemble cryptogram algorithm characteristic-measurement based on analyzing a lot of assemble cryptogram algorithms, and using seven-dimension characteristic vector to describe it, then constructs a cryptogram algorithm recognition model based on Bayes decision-making. The testing shows that this model is scalable and exact.

关 键 词：算法识别 程序理解 决策模型 特征度量元 

分 类 号：TP301.6[自动化与计算机技术—计算机系统结构]