Digital archives rely on trusted parties, such as certification authorities, to ensure
authenticity, integrity and proof of existence protection for documents. In this paper, we …

We observe that current mainstream digital signature schemes are complex and
inconvenient for end users. We group the main problems related to these schemes and …

The periodical re-encryption-based archival systems have many specific characteristics
such as actively re-encrypting the stored data objects periodically with or without conscious …

Este documento describe la experiencia en desarrollar una aplicación de Time Stamping
para el proceso de Factoring Electrónico en el Ecuador, la cual permite realizar el proceso …

Guarantee of authenticity, integrity and datedness is necessary to rely on digital data
objects. In literature, there are several solutions which offer these guarantees in the long …