". . .the best introduction to cryptography I′ve ever seen. .. . The book the National Security Agency wanted never to bepublished. . . ." –Wired Magazine". . .monumental . . . fascinating. . . comprehensive . . . the definitive work on cryptography forcomputer programmers . . ." –Dr. Dobb′s Journal". . .easily ranksas one of the most authoritative in its field." –PC Magazine". ..the bible of code hackers." –The Millennium Whole EarthCatalogThis new edition of the cryptography classic provides youwith a comprehensive survey of modern cryptography. The bookdetails how programmers and electronic communications professionalscan use cryptography–the technique of enciphering and decipheringmessages–to maintain the privacy of computer data. It describesdozens of cryptography algorithms, gives practical advice on how toimplement them into cryptographic software, and shows how they canbe used to solve security problems. Covering the latestdevelopments in practical cryptographic techniques, this

The updated guide to the newest graphing calculator from Texas InstrumentsThe TI–Nspire graphing calculator is popular among high school and college students as a valuable tool for calculus, AP calculus, and college–level algebra courses. Its use is allowed on the major college entrance exams. This book is a nuts–and–bolts guide to working with the TI–Nspire, providing everything you need to get up and running and helping you get the most out of this high–powered math tool.Texas Instruments’ TI–Nspire graphing calculator is perfect for high school and college students in advanced algebra and calculus classes as well as students taking the SAT, PSAT, and ACT examsThis fully updated guide covers all enhancements to the TI–Nspire, including the touchpad and the updated software that can be purchased along with the deviceShows how to get maximum value from this versatile math toolWith updated screenshots and examples, TI–Nspire For Dummies provides practical, hands–on instruction to h

This is a clear, plain-English guide to this complex scientific theory, String theory is the hottest topic in physics right now, with books on the subject (pro and con) flying out of the stores. String Theory For Dummies offers an accessible introduction to this highly mathematical 'theory of everything', which posits ten or more dimensions in an attempt to explain the basic nature of matter and energy. It is written for both students and people interested in science, and it also explains concepts, discusses the string theory's hypotheses and predictions, and presents the math in an approachable manner. It features in-depth examples and an easy-to-understand style so that readers can understand this controversial, cutting-edge theory.

Programming Legend Charles Petzold unlocks the secrets of theextraordinary and prescient 1936 paper by Alan M. Turing Mathematician Alan Turing invented an imaginary computer knownas the Turing Machine; in an age before computers, he explored theconcept of what it meant to be computable, creating the field ofcomputability theory in the process, a foundation of present-daycomputer programming. The book expands Turing’s original 36-page paper withadditional background chapters and extensive annotations; theauthor elaborates on and clarifies many of Turing’s statements,making the original difficult-to-read document accessible topresent day programmers, computer science majors, math geeks, andothers. Interwoven into the narrative are the highlights of Turing’sown life: his years at Cambridge and Princeton, his secret work incryptanalysis during World War II, his involvement in seminalcomputer projects, his speculations about artificial intelligence,his arrest and prosecution for the cr