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논문 기본 정보

자료유형
학술저널
저자정보
조규상 (Dongyang University)
저널정보
한국컴퓨터정보학회 한국컴퓨터정보학회논문지 한국컴퓨터정보학회 논문지 제23권 제8호(통권 제173호)
발행연도
2018.8
수록면
85 - 93 (9page)

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초록· 키워드

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In this research, it is proposed that a method to hide data by modifying directory index entry information. It consists of two methods: a directory list hiding and a file contents hiding. The directory list hiding method is to avoid the list of files from appearing in the file explorer window or the command prompt window. By modifying the file names of several index entries to make them duplicated, if the duplicated files are deleted, then the only the original file is deleted, but the modified files are retained in the MFT entry intact. So, the fact that these files are hidden is not exposed.
The file contents hiding is to allocate data to be hidden on an empty index record page that is not used. If many files are made in the directory, several 4KB index records are allocated. NTFS leaves the empty index records unchanged after deleting the files. By modifying the run-list of the index record with the cluster number of the file-to-hide, the contents of the file-to-hide are hidden in the index record.
By applying the proposed method to the case of hiding two files, the file lists are not exposed in the file explorer and the command prompt window, and the contents of the file-to-hide are hidden in the empty index record. It is proved that the proposed method has effectiveness and validity.

목차

Abstract
Ⅰ. Introduction
Ⅱ. Directory Indexing of NTFS
Ⅲ. Data Hiding Method by Modifying Directory Information
Ⅳ. Experiments
Ⅴ. Discussions
Ⅵ. Conclusion
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UCI(KEPA) : I410-ECN-0101-2018-004-003392419