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Drawing on the history of modern finance, as well as the sociology of money and risk, this book examines how cultural understandings of finance have contributed to the increased capitalization of the UK financial system following the Global Financial Crisis. Providing both a geographically-inflected analysis and re-appraisal of the concept of performativity, it demonstrates that financial risk management has a spatiality that helps to inform understandings and imaginaries of the risks associated with money and finance. The book traces the development of understandings of risk at the...

Cryptography plays a crucial role in many aspects of today's world, from internet banking and ecommerce to email and web-based business processes. Understanding the principles on which it is based is an important topic that requires a knowledge of both computational complexity and a range of topics in pure mathematics. This book provides that knowledge, combining an informal style with strong proofs of the key results to provide an accessible introduction. It includes many examples and exercises, and is based on a highly successful course developed and taught over many years.