![]() ![]() Such an approach offered a distinct advantage over other current techniques, including recovery of free/unallocated blocks and “file carving” techniques. Our research and analysis were based on the premise that a transactional history of file I/O operations is maintained in a Journal on HFS+ file systems, and that this history could be used to reconstruct recent deletions of active files from the file system. A survey performed during 2005 of existing tools and techniques for HFS+ deleted file recovery reinforced the need for newer, more accurate techniques. ![]() This paper describes research and analysis that were performed to identify a robust and accurate method for identifying and extracting the residual contents of deleted files stored within an HFS+ file system.
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