%0 Conference Proceedings
%T File Fragment Analysis Using Normalized Compression Distance
%+ Blekinge Institute of Technology [Karlskrona] (BTH)
%+ Tabaq Software [Lahore]
%A Axelsson, Stefan
%A Bajwa, Kamran, Ali
%A Srikanth, Mandhapati, Venkata
%Z Part 4: FILESYSTEM FORENSICS
%< avec comité de lecture
%( IFIP Advances in Information and Communication Technology
%B 9th International Conference on Digital Forensics (DF)
%C Orlando, FL, United States
%Y Gilbert Peterson
%Y Sujeet Shenoi
%I Springer
%3 Advances in Digital Forensics IX
%V AICT-410
%P 171-182
%8 2013-01-28
%D 2013
%R 10.1007/978-3-642-41148-9_12
%Z Computer Science [cs]Conference papers
%X The first step when recovering deleted files using file carving is to identify the file type of a block, also called file fragment analysis. Several researchers have demonstrated the applicability of Kolmogorov complexity methods such as the normalized compression distance (NCD) to this problem. NCD methods compare the results of compressing a pair of data blocks with the compressed concatenation of the pair. One parameter that is required is the compression algorithm to be used. Prior research has identified the NCD compressor properties that yield good performance. However, no studies have focused on its applicability to file fragment analysis. This paper describes the results of experiments on a large corpus of files and file types with different block lengths. The experimental results demonstrate that, in the case of file fragment analysis, compressors with the desired properties do not perform statistically better than compressors with less computational complexity.
%G English
%Z TC 11
%Z WG 11.9
%2 https://inria.hal.science/hal-01460604/document
%2 https://inria.hal.science/hal-01460604/file/978-3-642-41148-9_12_Chapter.pdf
%L hal-01460604
%U https://inria.hal.science/hal-01460604
%~ IFIP-LNCS
%~ IFIP
%~ IFIP-AICT
%~ IFIP-TC
%~ IFIP-WG
%~ IFIP-TC11
%~ IFIP-DF
%~ IFIP-WG11-9
%~ IFIP-AICT-410