SERVER SYSTEM, APPLICATION TERMINAL AND COMPUTER READABLE RECORDING MEDIUM RECORDED WITH PROGRAM

摘要

PROBLEM TO BE SOLVED: To lessen the burden of an application terminal by providing a server system which carries out asymmetric cipher and decipher processing through the network relating to a system for carrying out the asymmetric cipher and decipher processing necessary for digital authentication according to the request of the application terminal. SOLUTION: A user authentication section 4 carries out the authentication of a user by using data for the user authentication received in a server communication section 3 and a cipher processing section 6 reads out the secret key of the user authenticated from a secret key data base section 5 and makes cipher processing of the digest of the message received from the application terminal 11. The server communication section 3 returns the encrypted digest.