Security and trust research in M2M system

Machine to machine communication (M2M) has received increasing attention in recent years. However, its development and character cause new security challenge. The security and trust problems are serious in M2M system. A survey to security and trust in M2M system is necessary. Different visions of the M2M security and trust paradigm are reported and reviewed in this paper. They includes typical technology research progress and security product. All these will help to understand security and trustworthy in M2M system.