in this first edition of cryptography and network security, well-known author behrouz a,forouzan uses his accessible writing style and his visual approach to provide a introduction to the concepts of cryptography and network security. difficult mathematical concepts are organized in intervening chapters so that students can learn the necessary mathematical background for the following few chapters; these intervening chapters can be skipped if the students already know the materials. key features: hundreds of figures visually illustrate concepts and make technical material easier to understand. usable programs allow students to practice hands-on activities. up-to-date coverage of all the latest network security technologies ensures that lessons are directly applicable to real-life situations. extensive practice sets at the end of each chapter reinforce what students have leamed and give them an opportunity to work through an array of more challenging exercises. appendixes provide some extra information they may need for deep understanding of the materials. an accompanying website provides coded programs, colorful powerpointse, and solutions for the instructor and students.
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