Segurança da informação em redes peer-to-peer (P2P)

Abstract

The great progress in the areas of telecommunications and computer networks, combined with the large reduction in cost of computer resources, led to the proliferation of networks for all segments of society. In this context, a class of systems and applications that use distributed resources to perform critical functions in a decentralized way, P2P applications. With the expansion of interest in use of P2P applications, especially in corporate environments, the security of such system has been a major constraint to their use france. Accordingly, the objective of this review was on two themes that cross has received the attention of both the scientific community and industry: Peer-to-Peer (P2P) and Information Security. At the end of the review you can see that the system for P2P networks are very attractive and widely circulated for several reasons. Systems are scalable, or do not have a central point of failure or bottleneck in the form of a central server, networks that are better to resist intentional attacks such as denial of service and has the power to attract a large number of users in function of the benefits offered by the community, without however, giving the autonomy of its participants. However, despite the best resist intentional attacks are susceptible to security flaws or show some kind of vulnerability. Therefore, is necessary that applications are reliable and secure, considering that each P2P application has its own security requirements and must be instantiated as methods for their security needs.