计算机工程
計算機工程
계산궤공정
COMPUTER ENGINEERING
2014年
5期
317-321
,共5页
李炳龙%张传富%韩宗达%王清贤
李炳龍%張傳富%韓宗達%王清賢
리병룡%장전부%한종체%왕청현
E-mail文件雕刻%数字犯罪调查%碎片子集%特征标识%复合文件类型%碎片连接规则
E-mail文件彫刻%數字犯罪調查%碎片子集%特徵標識%複閤文件類型%碎片連接規則
E-mail문건조각%수자범죄조사%쇄편자집%특정표식%복합문건류형%쇄편련접규칙
E-mail file carving%digital crime investigation%fragment subset%characteristic identifier%compound file type%fragment adjacent rule
为获取存储介质中的碎片E-mail证据,利用集合论原理对邮件碎片文件雕刻问题进行分析,确定基于集合论划分思想的碎片文件雕刻思路。设计包含预处理、E-mail 文件碎片子集确定、E-mail 碎片间的连接关系确定等过程的邮件碎片文件雕刻算法模型。利用十六进制编辑器,阐述E-mail文件的内部结构特征,结合碎片邮件头尾和内嵌的html文件特征,论述存储介质上碎片的属性,给出碎片间的集中特性、跟随特性、线性特性以及信息特性的连接规则。实验结果表明,碎片邮件文件雕刻算法能更有效地获取邮件证据。
為穫取存儲介質中的碎片E-mail證據,利用集閤論原理對郵件碎片文件彫刻問題進行分析,確定基于集閤論劃分思想的碎片文件彫刻思路。設計包含預處理、E-mail 文件碎片子集確定、E-mail 碎片間的連接關繫確定等過程的郵件碎片文件彫刻算法模型。利用十六進製編輯器,闡述E-mail文件的內部結構特徵,結閤碎片郵件頭尾和內嵌的html文件特徵,論述存儲介質上碎片的屬性,給齣碎片間的集中特性、跟隨特性、線性特性以及信息特性的連接規則。實驗結果錶明,碎片郵件文件彫刻算法能更有效地穫取郵件證據。
위획취존저개질중적쇄편E-mail증거,이용집합론원리대유건쇄편문건조각문제진행분석,학정기우집합론화분사상적쇄편문건조각사로。설계포함예처리、E-mail 문건쇄편자집학정、E-mail 쇄편간적련접관계학정등과정적유건쇄편문건조각산법모형。이용십륙진제편집기,천술E-mail문건적내부결구특정,결합쇄편유건두미화내감적html문건특정,논술존저개질상쇄편적속성,급출쇄편간적집중특성、근수특성、선성특성이급신식특성적련접규칙。실험결과표명,쇄편유건문건조각산법능경유효지획취유건증거。
To acquire fragment E-mail evidence from storage medium, this paper analyzes the E-mail fragment file carving problem on the base of the set partition theory, determines the fragment file carving thought. According to the model, it designs E-mail fragment file carving algorithm model including preprocessing, E-mail file fragment subset determination, connected relation determination between E-mail fragments. By using hexadecimal editor, it expounds internal structure features of E-mail file, combined with the characteristics of fragment mail head and tail and embedded html files, discusses the fragment attributes in storage medium, and gives the adjacent rules among concentration characteristics, follow characteristics, linear properties and information characteristics from the fragments. Experimental results show that the algorithm can acquire E-mail evidence more effectively.