The new edition has been updated to include coverage of the latest topics including expanded coverage of block cipher modes of operation, including authenticated encryption, revised and expanded coverage of AES: expanded coverage of pseudorandom number generation, new coverage of celebrated identity, HTTPS, Secure Shell (SSH) and wireless network security, completely rewritten and updated coverage of Upset, and a new chapter on legal and ethical inside

The changes for this new edition of Cryptography and Network Security are more substantial and comprehensive than those for any previous revision.

In the three years since the fourth edition of this book was published. The held has seen continued innovations and improvements, in this new edition, Stalking captures these changes while maintaining a broad and comprehensive coverage of the entire field. To begin this process of revision, the fourth edition was extensively reviewed by a number of professors who teach the subject, in addition, a number of professionals working in the field reviewed individual chapters. The result is that, in many places, the narrative has been scratched and tightened, and lustrations have been improved. Also, a large number of new "field-tested" problems have been added

One obvious change to the book is a revision in the organization, which makes for a clearer presentation of related topics. There is a new Part, which pulls together all of the material on cryptographic algorithms for data integrity Including cryptographic hash functions, message authentication codes, and digital signatures. The material on key management and exchange, previously distributed in several places in the book, is now organized in a single chapter, as is the material on user authentication

Beyond these refinements to improve pedagogy and user trending, there have been major substantive changes throughout the book

This textbook was awarded the "McGuffey Longevity Award from the Text arts Academic Authors Cauldon (TAA) the only association devoted solely to serving textbooks and academic authors since the 1987 TAA panel of judges are all noted textbook authors in these disciplines.

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