Employee digital identity management device and method based on block chain

The invention relates to the technical field of message encryption, and discloses an employee digital identity management device and method based on a block chain, and the device comprises a registration module which is used for carrying out the identity registration of the identity information of each employee, and obtaining a digital identity public key and a digital identity private key of each employee; the authentication adding module is used for performing identity authentication on the employees applying for login based on the digital identity public keys of the employees, adding friend lists of the employees based on identity authentication results, and obtaining an interconnection list of each employee; the employee interconnection module is used for encrypting the message transmission process of the two interconnection parties based on the interconnection list of each employee to obtain an interconnection transmission encryption result; and the message sharing module is used for carrying out message