This book is a clear and informative introduction to cryptography and data protection - subjects of considerable social and political importance. It explains what algorithms do, how they are used, the risks associated with using them, and why governments should be concerned. Important areas are highlighted, such as Stream Ciphers, block ciphers, public key algorithms, digital signatures, and applications such as e-commerce. This book highlights the explosive impact of cryptography on moder...

This book is a clear and informative introduction to cryptography and data protection—subjects of considerable social and political importance. It explains what algorithms do, how they are used, the risks associated with using them, and why governments should be concerned. Important areas are highlighted, such as Stream Ciphers, block ciphers, public key algorithms, digital signatures, and applications such as e-commerce. This book highlights the explosive impact of cryptography on modern ...

Chaos exists in systems all around us. Even the simplest system of cause and effect can be subject to chaos, denying us accurate predictions of its behavior, and sometimes giving rise to astonishing structures of large-scale order. Our growing understanding of Chaos Theory is having fascinating applications in the real world—from technology to global warming, politics, human behavior, and even gambling on the stock market.Leonard Smith shows that we all have an intuitive understand...

We make choices all the time—about how to spend our money, about how to spend our time, about what to do with our lives. And we are also constantly judging the decisions other people make as rational or irrational. But what kind of criteria are we applying when we say that a choice is rational? What guides our own choices, especially in cases where we don't have complete information about the outcomes? What strategies should be applied in making decisions which affect a lot of people, as i...

It's the middle of the night.It's pouring with rain.You've woken up in the middle of a field, alone, surrounded by dead bodies.And you have no idea who you are.Myfanwy Thomas doesn't know what has happened to her. All she has is a collection of letters, written by her past self, to guide her through the improbable world in which she suddenly finds herself. They contain information -...

The second book in Suzanne Collins's phenomenal and worldwide bestselling Hunger Games trilogy.Against all odds, Katniss Everdeen has won the annual Hunger Games with fellow district tribute Peeta Mellark. But it was a victory won by defiance of the Capitol and their harsh rules. Katniss and Peeta should be happy. After all, they have just won for themselves and their families a life of safety and plenty. But there are rumors of rebellion among the subjects, and Katniss and Peeta, ...

The book explains the internal mathematical structure of magic squares and Sudoku puzzles. The book explains how to create four dimensional magic squares and how to transform them into traditional Sudoku puzzles.The book also explains how to create large Sudoku puzzles such as 25 by 25 puzzles, and 49 by 49 puzzles.

Cryptography is a vital technology that underpins the security of information in computer networks. This book presents a comprehensive introduction to the role that cryptography plays in providing information security for technologies such as the Internet, mobile phones, payment cards, and wireless local area networks. Focusing on the fundamental principles that ground modern cryptography as they arise in modern applications, it avoids both an over-reliance on transient current technologie...

This book is a rare resource consisting of problems and solutions similar to those seen in mathematics contests from around the world. It is an excellent training resource for high school students who plan to participate in mathematics contests, and a wonderful collection of problems that can be used by teachers who wish to offer their advanced students some challenging nontraditional problems to work on to build their problem solving skills. It is also an excellent source of problems for ...

Raymond Smullyan presents a bombshell puzzle so startling that it seems incredible that there could be any solution at all! But there is indeed a solution — moreover, one that requires a chain of lesser puzzles to be solved first. The reader is thus taken on a journey through a maze of subsidiary problems that has all the earmarks of an entertaining detective story.This book leads the unwary reader into deep logical waters through seductively entertaining logic puzzles. One example is Bool...

From the original hard cover edition:In the modern age of almost universal computer usage, practically every individual in a technologically developed society has routine access to the most up-to-date cryptographic technology that exists, the so-called RSA public-key cryptosystem. A major component of this system is the factorization of large numbers into their primes. Thus an ancient number-theory concept now plays a crucial role in communication among millions of...

An insightful reflection on the mathematical soulWhat do pure mathematicians do, and why do they do it? Looking beyond the conventional answers—for the sake of truth, beauty, and practical applications—this book offers an eclectic panorama of the lives and values and hopes and fears of mathematicians in the twenty-first century, assembling material from a startlingly diverse assortment of scholarly, journalistic, and pop culture sources.Drawing on his perso...