This volume is the first comprehensive reference devoted to the design and cryptanalysis of block ciphers. These ciphers form a very important part of the cryptographic building blocks used to secure electronic communications. The first part of the book is devoted to theoretical underpinnings, the second part presents design approaches and their security, and the last part addresses both hardware and software implementation issues. Specific topics covered include differential cryptanalysis and security against bounded adversaries. Supporting material is accessible on the author’s website.