Investigating TrustZone: A Comprehensive Analysis

The advent of the Internet and portable devices, including smartphones watches, has brought unprecedented opportunities for embedded application systems developments. Along with these developments, there is an increasing need devices to handle important services, such as ability pay bills or manage bank accounts remotely via mobile phones. Such applications developments have also highlighted issues cyberattacks computing network security--these made phones a potential target malware, trojans, viruses, so it critical design set security technologies devices. In fact, become essential requirement in process system design. Thus, ARM proposed system-level solutions based on TrustZone technology. technology tightly integrated Cortex™-A processors extends through AMBA® AXI bus specific IP blocks protect peripherals secure memory, encryption blocks, keyboards, screens from software attacks. It divides into TEE (Trusted Execution Environment) REE (Rich by hardware provides intrinsic services interfaces. More precisely, built combining software. worth noting that does not influence performance, power consumption, area much possible. Owing characteristics, gained wide attention researchers worldwide. There lack systematic documentation Therefore, this paper documents significant progress achieved field. particular, article mainly analyses primary mechanism implementation, how build Trusted Environment different environments. Then, discusses related research works academic field business Furthermore, advantages weaknesses well possible aiming at deficiency are outlined. Finally, comparison another mainstream commercial SGX, future directions presented.