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7th International Workshop on Digital Forensics and Incident Analysis (WDFIA 2012)
Title: Scalable Distributed Signature Detection
Author(s): Robert Hegarty, Madjid Merabti, Qi Shi, Robert Askwith
Keywords: Signature detection, Digital forensics, Storage as a Service, Distributed computing, Cloud computing
Abstract: The use of SaS (Storage as a Service) platforms provides users with a convenient and cost effective way to store and share data. The scale and distribution of data in SaS is such that existing signature detection techniques are not suited to the task of analysing data in these platforms. To maintain a practical and effective digital forensic capability, a new approach to the detection of target data in such platforms is required. This paper analyses the potential impact of widespread use of SaS in particular object storage platforms, have on digital forensic investigations and identifies the key challenges which must be overcome. The focus of the paper is development of a model to distribute the signature detection process in a way which minimises the quantity of resources required to carry out signature detection while at the same time maintaining the accuracy of current techniques and achieving signature detection within appropriate temporal boundaries.
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