| Presentation | 2010-11-17 Similarity Hashing resistant to file modifications Susumu SERITA, Yasuhiro FUJII, Satoshi KAI, Takao MURAKAMI, Yoshinori HONDA, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Similar files in PCs and servers need to be identified quickly and accurately, and this can be done by using similarity hashing to extract feature values of files. Whereas the cryptographic hashes of two files differing by even a single bit are drastically different, the similarity hashes of files with small modifications do not differ much. With conventional similarity hashing methods, however, the accuracy with which modified files are recognized to be similar decreases when the modifications change the file size. In this paper we discuss an improved similarity hashing method that can accurately identify similar files whose sizes differ. Experimental results show that the true positive rate obtained using the improved method is 22.5% higher than that obtained using a conventional method. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | similarity hashing / fuzzy hashing / digital forensic |
| Paper # | ISEC2010-54,LOIS2010-33 |
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| Conference Information | |
| Committee | LOIS |
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| Conference Date | 2010/11/10(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Life Intelligence and Office Information Systems (LOIS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Similarity Hashing resistant to file modifications |
| Sub Title (in English) | |
| Keyword(1) | similarity hashing |
| Keyword(2) | fuzzy hashing |
| Keyword(3) | digital forensic |
| 1st Author's Name | Susumu SERITA |
| 1st Author's Affiliation | Hitachi, Ltd., Systems Development Laboratory() |
| 2nd Author's Name | Yasuhiro FUJII |
| 2nd Author's Affiliation | Hitachi, Ltd., Systems Development Laboratory |
| 3rd Author's Name | Satoshi KAI |
| 3rd Author's Affiliation | Hitachi, Ltd., Systems Development Laboratory |
| 4th Author's Name | Takao MURAKAMI |
| 4th Author's Affiliation | Hitachi, Ltd., Systems Development Laboratory |
| 5th Author's Name | Yoshinori HONDA |
| 5th Author's Affiliation | Hitachi, Ltd., Systems Development Laboratory |
| Date | 2010-11-17 |
| Paper # | ISEC2010-54,LOIS2010-33 |
| Volume (vol) | vol.110 |
| Number (no) | 282 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |