Titlebook: Cryptography Made Simple; Nigel P. Smart Textbook 2016 Springer Nature Switzerland AG 2016 Block Ciphers.Digital Signatures.Discrete Logar

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Block Ciphers and Modes of Operationrtext. The block of plaintext and the block of ciphertext are assumed to be of the same size, e.g. a block of . bits. Every string of . bits in the domain should map to a string of . bits in the codomain, and every string of . bits in the codomain should result from the application of the function t

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Hash Functions, Message Authentication Codes and Key Derivation Functionsoutput is often called a digest, hashcode or hash value. Hash functions are used a lot in computer science, but the crucial difference between a standard hash function and a cryptographic hash function is that a cryptographic hash function should at least have the property of being one-way.

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The “Naive” RSA Algorithm on the difficulty of the RSA problem considered in Chapter 2, and hence it is based on the difficulty of finding the prime factors of large integers. However, we have seen that it may be possible to solve the RSA problem without factoring, hence the RSA algorithm is not based completely on the diff

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1619-7100 in computer science, mathematics and engineering.Includes suIn this introductory textbook the author explains the key topics in cryptography. He takes a modern approach, where defining what is meant by "secure" is as important as creating something that achieves that goal, and security definitions a

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Block Ciphers and Modes of Operationmain should map to a string of . bits in the codomain, and every string of . bits in the codomain should result from the application of the function to a string in the domain. This means that for a fixed key a block cipher is bijective and hence is a permutation.

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