A systemic approach for GPS evidence acquisition through forensics readiness
SubjectGeographic Information Systems ; Global Positioning System ; Artificial satellites in navigation
The use of Satellite Navigation Systems (SNS) has become increasingly common in recent years. The wide scale adoption of this technology has the potential to provide a valuable resource in forensics investigations. The potential of this resource is to provide historical location data from the device while maintaining forensics integrity. The main purpose of this thesis is to provide a systemic approach to forensics redlines. The goal of this study is to provide an automotive process that implements the collection and acquisition of forensics GPS evidence. The main purpose of the system is to provide availability of the evidence to authorized digital investigators. The system has to offer Confidentiality of the coordinates that collects from the GPS receiver and also has to provide integrity of the collected data to prove the originality and not alteration of the evidence acquired. The Data that shows individuals location called sensitive data need special treatment inside the GPS device or inside PDAs. The system developed has the ability to collect data from the GPS receiver and encrypt them using symmetric and asymmetric cryptography accompanied with hash algorithms for providing integrity of the original coordinates at the desirable encoding format (NMEA) .Another step is to save those encrypted coordinates into a file somewhere in the file system of the device together with timestamps and date provision, which should be accessible only from digital investigators. The design and implementation of this system is simulated and shows the steps that causes the desirable methodology.