Single Sign-on for Multiple Web Application

The generation of user credentials for system access coupled with the resulting rising security threats have led to the development of single sign-on (SSO) access control and multiple authentication technologies. This paper provides an overview of these authentication mechanisms, highlighting the current state in the marketplace and describing the key enabling technologies. The resulting analysis indicates a range of technologies, protocols and configurations that can be employed depending on the type of authentication and level of security required. There are a number of key benefits gained from adopting SSO such as increased corporate security and reduced organisational costs of managing access control. There are also a number of key challenges to be overcome by organisations adopting SSO. We build on proxy signature schemes to introduce the first public key cryptographic approach to single sign-on frameworks, which represents an important milestone towards the construction of provably secure single sign-on schemes.