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Computer and Communication Networks by Nader F. Mir

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Chapter 10. Network Security

The invention of computers made the need for security of digital information a critical issue. Advances in the field of computer networks have made information security even more important. Computer systems have to be equipped with mechanisms for securing data. Computer networks need provisions that secure data from possible intrusions. Security is especially crucial in wireless networks, as a wireless medium, by its nature, is vulnerable to intrusions and attacks. This chapter focuses on network security. The following major topics in network security are covered:

Overview of network security: elements and threats

Overview of security methods

Secret-key encryption protocols

Public-key encryption protocols ...

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