Suchergebnisse

Nowadays the terrorist threat took proportions that concern governments and the national security organizations, all over the world. A successful terrorist incident usually brings catastrophic results. However if a terrorist attack can be predicted and characterized, it may be possible to organize a proper intervention in order to avoid it or to reduce its impact. The management of information is becoming an important issue in the domain of security information systems. The information access and association, analysis and assessment, and finally exploitation have become the focus for all security information services and governments. Current surveillance approaches are not very efficient leading innocent citizen to the confrontation of law enforcement services. One reason for this, result from the difficulties of the current system to extract knowledge or concepts abstracted from massive databases of information. Knowledge based methods, such as ontologies can integrate data surveillance, and enable a proper data analyse improving the performance of the security information services. This paper intends to present a perspective about the use of ontologies in the context of data surveillance, and present its importance in the current security services domain. ...

E-mail systems are essential, but they also provide terrorists with an opportunity to impersonate public officials and, with the legitimacy and authority of the alleged sender, obtain collaborations or spread misinformation in critical situations, where the urgent need to responses relegates identity confirmations to a lower priority. This paper presents an e-mail system architecture that uses Public Key Infrastructures and behavioural biometrics to guarantee that only their legitimate users use governmental domains, automatically confirm their identity and encript/decript messages exchanged between public officers. The biometric components of the system can also contribute to a distributed database destined to identify anonymous e-mail senders. ...

The information agent has requirements in the Information Technology (IT) age that are in everything comparable to those of one hundred years ago. But, despite being similar, they require new forms of implementation due to the evolution of the communication platforms and protocols and to the increase in the amount of information that has to be known, stored, transmitted, and interpreted. Although, in many situations, the information agent will make use of everyday equipment, he will always require levels of trust in the processes that are far beyond those of the everyday citizen. But this cannot imply to carry huge infrastructures that will reveal the agent's intentions. In extreme situations the information agent is the soldier engaged in military activities in hostile environments. There, above all places, he requires light weight trustable equipment and protocols that can perform those tasks. This work, while making the parallel with the traditional methods, proposes a technological environment able to give answer to the requirements of information agents dealing with the need for a competitive intelligence advantage through the correct use of IT, namely biometrics, alternative authentication processes, Public Key Infrastructures and anti-fishing ...