A data synchronization based single sign-on schema supporting heterogeneous systems and multi-management mode

Single sign-on (SSO) solutions are classified into several modes and the flaws of each mode are pointed out in the paper. To overcome these drawbacks, a support heterogeneous systems and multi-management mode SSO (SHM-SSO) schema is proposed. Data modeling and data synchronization strategy is used in the schema to ensure subsystems run well while the Authentication Center (AC) fails and decline the intrusion into the existing systems. The schema has the advantages of agility, flexibility and anti-AC failure. It not only simplifies system management, but also protects user privacy. The schema has been put into use in a national bank in China, and exhibited satisfactory properties.