Esteganografia e suas Aplicações

Abstract

The Brazilian Symposium on Information and Computational Systems Security (SBSeg) is a scientific event promoted annually by the Brazilian Computer Society (SBC). SBSeg represents the country’s main forum for disseminating research results and relevant activities related to information and computational systems security. This book comprises the four chapters produced by the authors of the short courses selected for presentation at SBSeg 2007. Chapter 1, "Forense Computacional: fundamentos, tecnologias e desafios atuais", presents basic notions of computer forensics and tools that can be used to collect, keep and analyze evidences. The anatomy of some malicious codes and case studies are also used as a complement on the subject and as a way of increasing its comprehension. Chapter 2, "Esteganografia e suas Aplicações", explores some steganography techniques since these techniques can be used to protect communications. This chapter also shows some of the applications and the applicability of steganography as an alternative to well-known cryptographic methods. Chapter 3, "Introdução à Segurança Demonstrável", is an introductory reference for those interested in understanding provable security techniques, a subject of theoretical cryptography that studies the formal definition of strong security requirements and methods that may be used to analyse the security of cryptographic schemes with regard to these requirements. Chapter 4, "Soluções para o desenvolvimento de sistemas seguros", presents new methods to develop secure software systems, based not only on the application of existing theories but also on the adoption of a development process that considers security by design as an integral part of the software construction project.