基于动态数据流的密码函数加解密过程分析  

Analysis of encryption and decryption process among crypto functions based on dynamic data-flow

作　　者：李继中[1] 蒋烈辉[1] 舒辉[1] 戴理[1] 

机构地区：[1]解放军信息工程大学数学工程与先进计算国家重点实验室,郑州450000

出　　处：《计算机应用研究》2014年第4期1185-1188,共4页Application Research of Computers

摘　　要：在密码函数识别的基础上,采用九元组的形式定义了加解密过程依赖图,提出了基于动态数据流分析的函数依赖图构建框架,并设计了构建算法;采用垃圾调用删除、循环归约的方式对依赖图进行化简;基于标准密码算法依赖图知识库,设计了相似性判别算法对依赖图集合进行判别,测试结果验证了方法的可靠性与高效性。On the result of crypto functions recognition, the paper adopted nine tuple to define the encryption/decryption process relation graph, and brought forward the relation graph constructing framework and algorithm. It also made use of rub- bish-call deletion and loop reduction to simplify the relation graph. Lastly the paper applied the similarity decision algorithm to detect the standard algorithm from typical crypto libraries. The experiment verifies the reliability and high efficiency of above method.

关 键 词：算法识别 密码函数 加解密过程 动态数据流 依赖图 

分 类 号：TP309.7[自动化与计算机技术—计算机系统结构]