Published online by Cambridge University Press: 11 September 2009
Security of e-based systems and computer networks has become an important issue recently due to the increased dependence of organizations and people on such systems. The risk of accessing an e-commerce, or e-government system or Web site ranges from invasion of privacy and loss of money to exposing national security information and catastrophe. E-security solutions aim to provide five important services: authentication of users and actors, integrity, confidentiality of communication, availability of business services and non-repudiation of transactions. Most e-security solutions that are provided by the literature use two main cryptographic techniques: public key cryptosystems and digital signatures. Efficient solutions also should be compliant with the national legal framework.
There are multibillion dollars being invested in computer networks and e-systems; therefore, securing them is vital to their proper operation as well as to the future of the organizations and companies and national security. Due to the difficulties in securing the different platforms of e-systems, and the increasing demand for better security and cost-effective systems, the area of e-system and network security is an extremely rich field for research, development and investment. Security of e-systems provides in-depth coverage of the wide range of e-system security aspects including techniques, applications, trends, challenges, etc.
This book is the first book that is dedicated entirely to security of e-systems and networks. It consists of four main parts with a total of 14 chapters.
Chapter 1 describes the importance of system security and presents some relevant concepts in network security and subscribers' protection.