Scalability is a common issue among the most used permissionless blockchains, and several approaches have been proposed to solve it. However, tackling scalability while preserving the security and decentralization of the ...

Certificate validation is one of the toughest scalability problems of the PKI. The goal of this paper is to introduce a Java platform for certificate revocation called CERVANTES. CERVANTES pretends to be an easy to extend ...

Vehicular Ad Hoc Networks (VANETs) require mechanisms to authenticate messages, identify valid vehicles, and remove misbehaving vehicles. A public key infrastructure (PKI) can be used to provide these functionalities using ...

The scarce resources of a mobile ad hoc network (MANET) should not be wasted attending selfish nodes (those nodes that use resources from other nodes to send their own packets, without offering their own resources to forward ...

Distrust between data providers and data consumers is one of the main obstacles hampering digital-data commerce to take off. Data providers want to get paid for what they offer, while data consumers want to know exactly ...

Este trabajo presenta tanto el estado del arte como un análisis de los principales sistemas de revocación de certificados digitales. El hecho de comprender bien el mecanismo de revocación de un certificado es importante ...

Future networks will be formed by millions of devices, many of them mobile, sharing information and running applications. Android is currently the most widely used operating system in smartphones, and it is becoming more ...