节点文献
基于FAT32文件系统的计算机取证研究与实现
Computer Forensics Research and Implementation Based on FAT32 File System
【摘要】 针对FAT32文件系统,分析离散存储碎片,提出一种基于部分匹配预测算法PPMC来重构文件碎片的模型。采用PPMC算法确定出任意2个碎片的相邻性概率值,通过剪枝技术逐步加工处理,重构出一个有完整顺序的原文件,并分析系统中的隐藏文件index.dat。
【Abstract】 Aiming at on FAT32 file system,this paper emphasizes to analyze scattered fragments of disk files,and proposes a model of reassembling deleted file fragments based on PPMC algorithm.Employed Prediction by Partial Matching(PPM) is used to build a context model and compute candidate probabilities of the possible adjacency of two document fragments,and pruning technology is adopted to process gradually and reassemble a complete file.It also analyzes the hidden file named index.dat in the system.
【关键词】 数据恢复;
文件碎片;
取证系统;
文件重构;
index.dat文件;
【Key words】 data recovery; file fragments; forensic system; file reassembly; file of index.dat;
【Key words】 data recovery; file fragments; forensic system; file reassembly; file of index.dat;
- 【文献出处】 计算机工程 ,Computer Engineering , 编辑部邮箱 ,2009年09期
- 【分类号】TP311.52
- 【被引频次】7
- 【下载频次】252