Password issuing method, data transmission method, password issuing device, program for executing password issuing method, recording medium storing same, program for executing data transmission method, and recording medium storing same

摘要

A host computer determines if it is a time to reissue a password for use in an authentication check of a computer of a client, and if so, performs a process of updating the password. In the password to be reissued, included is specific data reflecting the existing state of the computer of the client with regard to data communication. As a result, the host computer can be prevented from having access from disqualified computer of a client or illegal access from a third person with stolen password.