A ring signature scheme is a group signature scheme with no group manager to setup a group or revoke a signer. A linkable ring signature, introduced by Liu, et al. [20], additional...
Patrick P. Tsang, Victor K. Wei, Tony K. Chan, Man...
Security and trust are two properties of modern computing systems that are the focus of much recent interest. They play an increasingly significant role in the requirements for mo...
Abstract. In this paper, we examine issues related to the construction of identity-based threshold decryption schemes and argue that it is important in practice to design an identi...
ing and Refining Authorization in SQL Arnon Rosenthal, Edward Sciore1 The SQL standard specifies authorization via a large set of rather opaque rules, which are difficult to unders...
Abstract. With the rise of global networks like the Internet the importance of workflow systems is growing. However, security questions in such environments often only address secu...