Security is a critical issue in mobile commerce, especially in mobile database systems since mobile environments are dynamic and traditional protection mechanisms do not work very...
Several credential systems have been proposed in which users can authenticate to service providers anonymously. Since anonymity can give users the license to misbehave, some varia...
Patrick P. Tsang, Man Ho Au, Apu Kapadia, Sean W. ...
Identity Mixer is an anonymous credential system developed at IBM that allows users for instance to prove that they are over 18 years old without revealing their name or birthdate....
Secure two-party authentication and key exchange are fundamental problems. Traditionally, the parties authenticate each other by means of their identities, using a public-key infr...
The notion of anonymous signatures has recently been formalized by [18], which captures an interesting property that a digital signature can sometimes hide the identity of the sign...