Method of mutual security verification between supervisor and agent in network transmission

The method includes following steps: (1) receiving request for verifying identity from supervisor, agent generates a random number, encrypts the said random number by using first algorithm so as to obtain first cipher text, which is sent to supervisor; (2) supervisor decrypts the said first cipher text by using reverse algorithm of first algorithm so as to obtain second cipher text; (3) supervisor encrypts second cipher text by using third algorithm so as to obtain third cipher text, which is sent to agent; (4) agent decrypts the said third cipher text by using reverse algorithm of third algorithm so as to obtain fourth cipher text; (5) comparing the said fourth cipher text with random number to determine whether they are identical; if yes, identity verification is passed. Advantages are: user management system of each agent can be existed independent on supervisor system; maintainability of safety system is improved; managerial efficiency is raised.