Anonymous Single Sign-On Schemes Transformed from Group Signatures

Provided by: University of Wisconsin–River Falls
Topic: Security
Format: PDF
Single Sign-On (SSO) allows a user to obtain a single credential from a Trusted Third Party (TTP) once and then authenticates them to different service providers by using the same credential. Though different SSO schemes have been obtained from various primitives, user anonymity has not yet been studied formally. Motivated by the fact that anonymity is a very essential security requirement in certain scenarios; in this paper the authors first formalize a security model of Anonymous Single-Sign On (ASSO).

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