Satizábal Echevarria, Isabel Cristina (Date of defense: 2007-03-09)
Authentication and authorisation architectures based on certificates have not been widely accepted due to their cost, inflexibility and difficult management.<br/>The complexity of the Public Key ...
Muñoz Tapia, José L. (José Luis) (Date of defense: 2003-11-26)
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 ...
Hinarejos Campos, M. Francisca (Date of defense: 2010-06-30)
Technology progress in both user devices and networks allows communications anytime and anywhere. New communication environments offer a wide range of possibilities to users, but also generate new ...
Parra Arnau, Javier (Date of defense: 2013-12-02)
In recent times we are witnessing the emergence of a wide variety of information systems that tailor the information-exchange functionality to meet the specific interests of their users. Most of these ...
Puglisi, Silvia (Date of defense: 2017-06-20)
Online communications generate a consistent amount of data flowing between users, services and applications. This information results from the interactions among different parties, and once collected, ...
Estrada Jiménez, José Antonio (Date of defense: 2020-10-02)
Online advertising is consistently considered as the pillar of the "free• content on the Web since it is commonly the funding source of websites. Furthermore, the option of delivering personalizad ads ...
Rodríguez Hoyos, Ana Fernanda (Date of defense: 2020-10-21)
For some time now, big data applications have been enabling revolutionary innovation in every aspect of our daily life by taking advantage of lots of data generated from the interactions of users with ...