ForensicAnalysisofMobileMalware·Chapter9 323 The following equipment is necessary to conduct fault analysis on a mobile device: A signal reader A digital oscilloscope Acquisition and analysis equipment, and hardware and software programs Cables and other peripheral devices A high-power microscope A laser Fault testing involves a process of: 1. Identifying when to inject fault This is where the digital signal reader and oscilloscope come into use. The EM and voltage readings of a device will vary sig- nificantly when running encryption algorithms. 2. Identifying where to inject fault The differences noted in step (1) can be detected and marked as "break points" to inject faults. 3. Fault injection A number of research and commercial toolsets can be used to