The great expansion of Internet use, as in its implantation as in the services offered through it, allows the user to carry out a lot of tasks of all kind: electronic trade, teleworking, databases enquiries, etc. Furthermore, the different governments and public administrations have been implied in this development and have put at citizens' disposal new services that have been called e-government. With this suggestive denomination is made a reference to more or less sophisticated services offered by the Public Administration designed to facilitate the business citizen-administration. So, between them, we can find from the simplest systems that provide access exclusively to the information (scholarships information, etc.) until the most sophisticated systems of on-line attention that allow to replace the proceedings carried out in person for proceedings carried out in a telematic way: presentation of the rent declaration, payment of taxes, enrollments, etc. In this sense spanish government has issued the new electronic national identification card (DNI-e in spanish) which provides the electronic signature. As a consequence a great effort is made by the scientific community in the field of security communications research both on Cryptology and on Information Security.

The Spanish Meeting on Cryptology and Information Security is a biennial conference that can be considered as the most important spanish conferente that meets spanish people that works on Cryptology and Information Security. X RECSI will be the tenth of a series, after Palma de Mallorca (1991), Madrid (1992), Barcelona (1994), Valladolid (1996), Torremolinos (1998), Santa Cruz de Tenerife (2000), Oviedo (2002), Leganés (2004) and Barcelona (2006).

The main goals of X RECSI are two: To show the most important and recent advances in the design, development, implementation, realisation and application of efficient and secure cryptographic algorithms, and to review the first two years of the establishment of the DNI-e.

The X RECSI will be held on September 2-5, 2008 in Salamanca, Spain. Three lectures will be presented by international researchers of being recognized prestige as for the Cryptology and Information Security community. Also people from spanish government and private sector will be presented another four lectures. Moreover several contributions will be presented in two parallel sessions (Cryptology and Information Security) and a roundtable will be organized whose participants belong to the most important spanish security companies.