OPENID BASED USER AUTHENTICATION SCHEME FOR MULTI-CLOUDS ENVIRONMENT

摘要

The present invention relates to an open ID-based user authentication method for a multi-cloud environment. The method includes allowing a cloud server to register cloud service provider information to an ID providing company server in order to receive a service therefrom, allowing a user terminal to receive a ticket issued by the cloud server, to register the ticket to the ID providing company server, and to receive an open ID issued by the ID providing company server, and allowing the user terminal to connect to the cloud server based on the received open ID, to be authenticated by the cloud server, and to use the cloud server. According to the present invention, when a user authentication process is performed for each cloud service, unique ticket information provided by the cloud server is issued to a legitimate user and the ticket information is added to an open ID, and only ticket information is issued for an additional cloud service and the ticket information is added to the unique open ID of the user so a single authentication is performed, thereby fundamentally blocking the use of the service for an unauthorized user. Accordingly, the exposure of important data can be blocked. In addition, user authentication for second and third cloud services can be performed using an issued open ID.