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Improved Tiled Bitmap Forensic Analysis Algorithm

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Author(s): C. D. Badgujar, G. N. Dhanokar

Journal: International Journal of Advanced Computer Research
ISSN 2249-7277

Volume: 2;
Issue: 6;
Start page: 56;
Date: 2012;
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Keywords: Temporal databases | EDNS | DBMS

ABSTRACT
In Computer network world, the needs for securityand proper systems of control are obvious and findout the intruders who do the modification andmodified data. Nowadays Frauds that occurs incompanies are not only by outsiders but also byinsiders. Insider may perform illegal activity & tryto hide illegal activity. Companies would like to beassured that such illegal activity i.e. tampering hasnot occurred, or if it does, it should be quicklydiscovered. Mechanisms now exist that detecttampering of a database, through the use ofcryptographically-strong hash functions. This papercontains a survey which explores the various beliefsupon database forensics through differentmethodologies using forensic algorithms and toolsfor investigations. Forensic analysis algorithms areused to determine who, when, and what data hadbeen tampered. Tiled Bitmap Algorithm introducesthe notion of a candidate set (all possible locationsof detected tampering(s)) and provides a completecharacterization of the candidate set and itscardinality. Improved tiled bitmap algorithm willcover come the drawbacks of existing tiled bitmapalgorithm.
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