Database outsourcing is an important emerging trend which involves data owners delegating their data management needs to an external service provider. Since a service provider is a...
In PODC 2003, Park, Chong, Siegel and Ray [22] proposed an optimistic protocol for fair exchange, based on RSA signatures. We show that their protocol is totally breakable already...
Abstract. Direct anonymous attestation (DAA) is a special digital signature primitive, which provides a balance between signer authentication and privacy. One of the most interesti...
—Signcryption is a cryptographic primitive that fulfills both the functions of digital signature and public key encryption simultaneously, at a cost significantly lower than th...
Many of today’s software applications require a high-level of security, defined by a detailed policy and attained via mechanisms such as role-based access control (RBAC), mandat...
Jaime A. Pavlich-Mariscal, Laurent Michel, Steven ...