Applications of Group Signatures

Kazue Sako

In the talk I will give a brief introduction to what group signature is and discuss its possible applications. Group signature scheme allows one to sign anonymously on behalf of a group and was first thought as a tool to enhance privacy of users. For example, a user can identify himself as a member of some privileged group and enjoy the membership services anonymously. However, this conflicts the need of service providers who usually want to supply personal services to their customers. In the talk we will discuss alternative scenarios in which the properties of group signatures are more appreciated by the business companies. This is a on-going work and many comments are greatly appreciated.

12 Feburary (Monday) at 1430 hrs (Note unusual time)

Gates 4B (opposite 490)