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Today’s news headlines are plentifully peppered by the latest hacks into some of the world’s largest and most reputable companies. These malicious intrusions leave the personal, banking, and credit card information of millions of people vulnerable to the malevolent whims of the hackers. Meanwhile, inside the world of cryptography, the race is on to keep that information as safe and protected as possible as hackers uncover new ways to access it. Readers will be riveted by this race, the outcome of which affects us all.
Today’s news headlines are plentifully peppered by the latest hacks into some of the world’s largest and most reputable companies. These malicious intrusions leave the personal, banking, and credit card information of millions of people vulnerable to the malevolent whims of the hackers. Meanwhile, inside the world of cryptography, the race is on to keep that information as safe and protected as possible as hackers uncover new ways to access it. Readers will be riveted by this race, the outcome of which affects us all.
This book examines current debates about the politics of technology and the future of democratic practices in the digital era. The volume centres on the debates on digital encryption in Germany and the USA, during the aftermath of Edward Snowden’s leaks, which revolved around the value of privacy and the legitimacy of surveillance practices. Using a discourse analysis of mass media and specialist debates, it shows how these are closely interlinked with technological controversies and how, as a result, contestation emerges not within one public sphere but within multiple expert circles. The book develops the notion of ‘publicness’ in order to grasp the political significance of these controversies, thereby making an innovative contribution to Critical Security Studies by introducing digital encryption as an important site for understanding the broader debates on cyber security and surveillance. This book will be of much interest to students of critical security studies, science and technology studies, and International Relations.
In their book "Era of Exponential Encryption - Beyond Cryptographic Routing" the authors provide a vision that can demonstrate an increasing multiplication of options for encryption and decryption processes: Similar to a grain of rice that doubles exponentially in every field of a chessboard, more and more newer concepts and programming in the area of cryptography increase these manifolds: both, encryption and decryption, require more session-related and multiple keys, so that numerous options even exist for configuring hybrid encryption: with different keys and algorithms, symmetric and asymmetrical methods, or even modern multiple encryption, with that ciphertext is converted again and again to ciphertext. It will be analyzed how a handful of newer applications like e.g. Spot-On and GoldBug E-Mail Client & Crypto Chat Messenger and other open source software programming implement these encryption mechanisms. Renewing a key several times - within the dedicated session with "cryptographic calling" - has forwarded the term of "perfect forward secrecy" to "instant perfect forward secrecy" (IPFS). But even more: if in advance a bunch of keys is sent, a decoding of a message has to consider not only one present session key, but over dozens of keys are sent - prior before the message arrives. The new paradigm of IPFS has already turned into the newer concept of these Fiasco Keys. Fiasco Keys are keys, which provide over a dozen possible ephemeral keys within one session and define Fiasco Forwarding, the approach which complements and follows IPFS. And further: by adding routing- and graph-theory to the encryption process, which is a constant part of the so called Echo Protocol, an encrypted packet might take different graphs and routes within the network. This shifts the current status to a new age: The Era of Exponential Encryption, so the vision and description of the authors. If routing does not require destination information but is replaced by cryptographic insights, then it is "beyond cryptographic routing". "Cryptographic Discovery" means: If the cryptographic token is matching, the message belongs to me. The Echo Protocol is in this regard an initial welcome within the Era of Exponential Encryption. The authors identify also four arms within the Era of Exponential Encryption and derive from these developments social, legal, political and economic recommendations.
While cracking a code might seem like something few of us would encounter in our daily lives, it is actually far more prevalent than we may realize. Anyone who has had personal information taken because of a hacked email account can understand the need for cryptography and the importance of encryptionessentially the need to code information to keep it safe. This detailed volume examines the logic and science behind various ciphers, their real world uses, how codes can be broken, and the use of technology in this oft-overlooked field.
In a world where data flows freely and communication spans the globe, the need for secure and private communication has never been more critical. This book invites you on an illuminating journey into the captivating realm of secure communication, demystifying the intricate techniques that have protected secrets and guarded information for centuries. Delve into the heart of cryptology and discover its essential components. From the foundational concepts of cryptography and cryptanalysis to the crucial differences between symmetric and asymmetric encryption, this book lays a solid groundwork for your exploration. Unravel the secrets of historical encryption methods, from the ingenious Caesar cipher to the unbreakable Enigma code. Journey through time to understand how cryptology played pivotal roles in shaping the outcomes of significant historical events. Transitioning to the modern era, you'll explore cutting-edge algorithms like AES and RSA, witnessing the evolution from ancient ciphers to sophisticated cryptographic systems. Learn the art of ensuring data integrity through hash functions and message digests. Discover how these seemingly simple algorithms create digital fingerprints that authenticate information, a vital aspect in our era of digital transactions and communication. Embark on a tour of practical applications. Explore the inner workings of SSL/TLS protocols that secure your online transactions, and peek into the world of VPNs that create encrypted tunnels in the digital landscape. Dive into the intricacies of email encryption, guaranteeing that your confidential messages remain for your eyes only. No exploration of cryptology is complete without a glimpse into the world of cryptanalysis. Learn how attackers attempt to break codes and the countermeasures employed to thwart their efforts. From historical breakthroughs to contemporary computational attacks, gain insights into the ongoing battle between cryptographers and hackers. As quantum computing emerges on the horizon, discover its potential impact on cryptology. Explore quantum key distribution and post-quantum cryptography, equipping yourself with knowledge about the future of secure communication. This book is an invitation to all curious minds seeking to understand the captivating art of secure communication. Whether you're a beginner eager to grasp the fundamentals or a curious explorer looking to unlock the secrets of cryptology, this book will guide you through the intricate web of techniques that have shaped the way we safeguard information. Step into the realm of unbreakable codes, digital signatures, and encrypted messages, and embark on a journey that spans centuries, continents, and technological revolutions. Secure your copy today and start your adventure into the world of cryptology. Your journey to unlock the secrets of secure communication begins now.
A clear, comprehensible, and practical guide to the essentials of computer cryptography, from Caesar's Cipher through modern-day public key. Cryptographic capabilities like detecting imposters and stopping eavesdropping are thoroughly illustrated with easy-to-understand analogies, visuals, and historical sidebars. The student needs little or no background in cryptography to read Cryptography Decrypted. Nor does it require technical or mathematical expertise. But for those with some understanding of the subject, this book is comprehensive enough to solidify knowledge of computer cryptography and challenge those who wish to explore the high-level math appendix.
Encryption protects information stored on smartphones, laptops, and other devices - in some cases by default. Encrypted communications are provided by widely used computing devices and services - such as smartphones, laptops, and messaging applications - that are used by hundreds of millions of users. Individuals, organizations, and governments rely on encryption to counter threats from a wide range of actors, including unsophisticated and sophisticated criminals, foreign intelligence agencies, and repressive governments. Encryption on its own does not solve the challenge of providing effective security for data and systems, but it is an important tool. At the same time, encryption is relied on by criminals to avoid investigation and prosecution, including criminals who may unknowingly benefit from default settings as well as those who deliberately use encryption. Thus, encryption complicates law enforcement and intelligence investigations. When communications are encrypted "end-to-end," intercepted messages cannot be understood. When a smartphone is locked and encrypted, the contents cannot be read if the phone is seized by investigators. Decrypting the Encryption Debate reviews how encryption is used, including its applications to cybersecurity; its role in protecting privacy and civil liberties; the needs of law enforcement and the intelligence community for information; technical and policy options for accessing plaintext; and the international landscape. This book describes the context in which decisions about providing authorized government agencies access to the plaintext version of encrypted information would be made and identifies and characterizes possible mechanisms and alternative means of obtaining information.
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How quickly can you compute the remainder when dividing by 120143? Why would you even want to compute this? And what does this have to do with cryptography? Modern cryptography lies at the intersection of mathematics and computer sciences, involving number theory, algebra, computational complexity, fast algorithms, and even quantum mechanics. Many people think of codes in terms of spies, but in the information age, highly mathematical codes are used every day by almost everyone, whether at the bank ATM, at the grocery checkout, or at the keyboard when you access your email or purchase products online. This book provides a historical and mathematical tour of cryptography, from classical ciphers to quantum cryptography. The authors introduce just enough mathematics to explore modern encryption methods, with nothing more than basic algebra and some elementary number theory being necessary. Complete expositions are given of the classical ciphers and the attacks on them, along with a detailed description of the famous Enigma system. The public-key system RSA is described, including a complete mathematical proof that it works. Numerous related topics are covered, such as efficiencies of algorithms, detecting and correcting errors, primality testing and digital signatures. The topics and exposition are carefully chosen to highlight mathematical thinking and problem solving. Each chapter ends with a collection of problems, ranging from straightforward applications to more challenging problems that introduce advanced topics. Unlike many books in the field, this book is aimed at a general liberal arts student, but without losing mathematical completeness.