Overview Edit

EnCase is a commercially available forensic software toolkit that provides acquisition of suspect media, search and analytical tools, hash generation of individual files, data capture and documentation features. Although more widely used for examining PCs, EnCase also supports PDA devices.

EnCase allows for the creation of a complete physical bit-stream image of a device. Throughout the process, the integrity of the bit-stream image is continually verified by CRC (cyclical redundancy check) values, which are calculated concurrent to acquisition. The resulting bit-stream image, called an EnCase evidence file, is mounted as a read-only file or “virtual drive” from which EnCase proceeds to reconstruct the file structure using the logical data in the bit-stream image. This allows the examiner to search and examine the contents of the device using either a logical or physical perspective.

EnCase allows for files, folders, or sections of a file to be highlighted and saved for later reference. These marks are called bookmarks. All bookmarks are saved in case files, with each case having its own bookmark file. Bookmarks can be viewed anytime and can be made from anywhere data or folders exist. Reporting features allows examiners to view information from a number of perspectives: all acquired files, single files, results of a string search, a report, or the entire case file created.

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