A digitalidentity can refer to a person, a company, a device or a software. While a person is uniquely identifiable by username, personal identification number, passwords or biometric features
, a machine or device is identifiable by its digital machine identity. As machines communicate with each other via the Internet of Things (IoT), it is important that they identify and trust each other. Therefore, each machine and device needs its own exclusive device or hardware identity. Only through the exclusivity of the hardware identity, which excludes replication or duplication, can trustworthy comb communication be ensured. And only with this can machines gain access to other machines or computers
andcommunicate with them, exchange data and information, and use services
offered.In communication between devices, the trusted identity features are protected by cryptographic encryption methods and security protocols such as Secure Socket
Layer(SSL), Transport Layer Security (TLS), and Datagram Transport Layer
Security (DTLS). Hardware identities form the basis for trusted computing and are crucial for machine-to-machine (M2M) communication.