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Foundations of Cryptography Basic Techniques Wonderful Digest

Foundations of Cryptography Basic Techniques Wonderful Digest

Structure and PrerequisitesOur aim is to present the basic concepts, techniques, and results in cryptography. As stated earlier, our emphasis is on the clarification of fundamental concepts and the rela-tionships among them. This is done in a way independent of the particularities of some popular number-theoretic examples. These particular examples played a central role in the development of the field and still offer the most practical implementations of all cryptographic primitives, but this does not mean that the presentation has to be linked to them. On the contrary, we believe that concepts are best clarified when presented at an abstract level, decoupled from specific implementations. Thus, the most relevant background for this book is provided by basic knowledge of algorithms (including randomized ones), computability, and elementary probability theory. Background on (computational) number theory, which is required for specific implementations of cer-tain constructs, is not really required here (yet a short appendix presenting the most relevant facts is included in this volume so as to support the few examples of imple-mentations presented here).

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