DEVICE AND METHOD FOR PKI BASED SINGLE SIGN-ON AUTHENTICATION ON LOW COMPUTING SECURITY DEVICE

摘要

A device and a method for PKI(Public Key Infrastructure) based single sign-on authentication on a low computing security device are provided to minimize the delay of an authentication operation by allowing one symmetric key based server to manage the authentication device divided by regions. A device for PKI based single sign-on authentication on a low computing security device includes an authorized server(50c), a judging server(60), and a security terminal(70). The authorized server(50c) includes an individual key and a public key for authentication authorized by a user(40), generates a vicarious certificate by the individual key, and performs an operation for authentication according to a user's request. The judging server(60) stores evidence data for authentication by using an embedded key to prevent a user's denial to the authentication. The security terminal(70) has authentication, authority, charging, communication functions, and is driven by a low level processor.