Standards are emerging to meet the demands for cryptographic protection in most areas of data communications. Public-key cryptographic techniques are now in widespread use, especially in the financial services industry, in the public sector, and by individuals for their personal privacy, such as in electronic mail. This Handbook will serve as a valuable reference for the novice as well as for the expert who needs a wider scope of coverage within the area of cryptography. It is a necessary and timely guide for professionals who practice the art of cryptography. The Handbook of Applied Cryptography provides a treatment that is multifunctional: It serves as an introduction to the more practical aspects of both conventional and public-key cryptographyIt is a valuable source of the latest techniques and algorithms for the serious practitionerIt provides an integrated treatment of the field, while still presenting each major topic as a self-contained unitIt provides a mathematical treatment to accompany practical discussionsIt contains enough abstraction to be a valuable reference for theoreticians while containing enough detail to actually allow implementation of the algorithms discussedNow in its third printing, this is the definitive cryptography reference that the novice as well as experienced developers, designers, researchers, engineers, computer scientists, and mathematicians alike will use.

    One of the oldest forms of indigenous shelter still in use today, yurts have exploded into the twenty-first century as a multi-faceted, thoroughly modern, utterly versatile, and immensely popular modern structure whose possibilities are still being explored. Kemery introduces the innovators who redesigned the yurt and took it from back country trekking and campground uses to modern permanent homes and offices.

    

    Each chapter introduces a new bad actor in the history of warfare, details his conquests, and features weapons and fortifications to defend against him and his minions. Clear step-by-step instructions, diagrams, and photographs show how to build a dozen projects, including “Da Vinci’s Catapult,” “Carpini’s Crossbow,” a “Crusader-Proof Moat,” “Alexander’s Tortoise,” and the “Cheval-de-frise.” With a strong emphasis on safety, the book also gives tips on troubleshooting, explains the physics behind many of the projects, and shows where to buy the materials. By the time they’ve reached the last page, at-home defenders everywhere will have succeeded in creating a fully fortified home.

    Download issues at no extra cost from Archived Items. The Economist is the premier source for the analysis of world business and current affairs, providing authoritative insight and opinion on international news, world politics, business, finance, science and technology, as well as overviews of cultural trends and regular Special reports on industries and countries. Established in 1843 to campaign against the protectionist corn laws, The Economist remains, in the second half of its second century, true to the liberal principles of its founder. James Wilson, a hat maker from the small Scottish town of Hawick, believed in free trade, internationalism and minimum interference by government, especially in the affairs of the market. The Economist also takes a fiercely independent stance on social issues, from gay marriage to the legalisation of drugs, but its main service to its readers is as a global newspaper: To uncover new ideas from all around the world. The Kindle Edition of The Economist contains all of the articles and graphics found in the print edition, but will not include all photos. For your convenience, issues are auto-delivered wirelessly to your Kindle each Friday at the same time the print edition hits the newsstand.

    In elegant, witty three-page summations, Dr. Trefil "makes sense of science for the rest of us" (Washington Post).

    Being naturally conscientious and reliable, they tend to carry on under great stress, where weaker people would simply give up. In the end the burden becomes too much and they succumb to depression rather like a rubber band which will snap if stretched too far. The work attempts to explain the cause of depression and how it can be treated - by looking after yourself, antidepressant treatments and talking therapies.

    "Hard Optimism" gives you 12 powerful, proven practices for reducing negative thinking and adopting the attitude of a winner-the keys to seizing opportunity, overcoming obstacles, and wielding a positive influence on the people around you.With the action steps outlined in "Hard Optimism," you'll discover how to: Recognize and dispute pessimistic thoughts Gain an edge by adopting an optimistic style to interpret events, both good and bad Use positive reappraisal to handle problems and disappointments Know how and when to use negative thinking to your advantage Play to your signature strengths Practice gratitude and forgiveness to fight off negativityBy taking a hard look at reality rather than sugarcoating it, by managing your thought processes to improve hard results, you'll master hard optimism and meet the challenges in every area of your career and life.

    A realistic guide to becoming an Astronaut at a young age.

    Each dog (and one cat) profiled has had a rough past, suffering abuse or extreme neglect at the hands of humans.Some dogs featured here have become therapy dogs for hospitals and nursing homes; reading partners for children; friends to at risk teens and the injured in veterans affairs hospitals; service dogs for the deaf and blind; arson dogs; and even search-and-rescue dogs. Some of these special dogs are disabled, blind, deaf, missing limbs, but they don't seem to know it. These spunky, happy animals have repaid the kindness of their rescuers in spades, bringing the therapy of love to people in need, sometimes even saving lives.

    Instead of relying on another attacker's tools, this book will teach you to forge your own weapons using the Python programming language. This book demonstrates how to write Python scripts to automate large-scale network attacks, extract metadata, and investigate forensic artifacts. It also shows how to write code to intercept and analyze network traffic using Python, craft and spoof wireless frames to attack wireless and Bluetooth devices, and how to data-mine popular social media websites and evade modern anti-virus.

    It is a 2 day exam. Day 1 features 336 multiple-choice questions; day 2 features 144 multiple-choice questions and 9 Clinical Case Scenarios.

    Using science, math, innovation, and improvisation, Bletchley Park code breakers worked furiously to invent a machine to decipher what turned out to be the secrets of Nazi high command. It was called Colossus. What these code breakers didn't realize was that they had fashioned the world's first true computer. When the war ended, this incredible invention was dismantled and hidden away for almost 50 years. Paul Gannon has pieced together the tremendous story of what is now recognized as the greatest secret of Bletchley Park.

    

    The task-based approach teaches readers how to combine HTML and CSS to create sharp and consistent Web pages.