A digital identity can refer to a person, a company, a device or software. While a person is uniquely identifiable by username, personal identification number, passwords or biometricfeatures, 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. Each machine and device therefore needs its own exclusive device or hardware identity. Only the exclusivity of the hardware identity, which rules out replication or duplication, can ensure trustworthy comb communication. And only with this can machines gain access to other machines or computers and communicate with them, exchange data and information, and use services offered.
When communicating between devices, trusted identities 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).