METHOD AND DEVICE FOR GENERATING DISPOSABLE SECRETE KEY

摘要

PURPOSE: A method and a device for generating a disposable secrete key are provided to make a server and a client share the disposable secrete key for encrypting and decrypting the information in the real-time while not passing a transmission process using a communication network. CONSTITUTION: A transmitting/receiving part(110) performs the data communication with the client(200). A process generating part(130) generates a random number modification process for modifying a random number string transferred from the client and a secrete key generating process, and transmits the processes to the client. A random number string managing part(110) generates the first modified random number string and a partial random number string. A random number string comparing part(120) compares the second modified random number string with the first modified random number string by receiving the second modified random number string information from the client(200). A secrete key generating part(150) generates the disposable secrete key by manipulating a partial common random number string of the first and the second modified random number string if the comparison is accorded.