Titlebook: Introduction to Cryptography; Principles and Appli Hans Delfs,Helmut Knebl Textbook 20021st edition Springer-Verlag Berlin Heidelberg 2002

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Textbook 20021st edition and administration. Modern cryptography provides essential techniques for securing information and protecting data...In the first part, this book covers the key concepts of cryptography on an undergraduate level, from encryption and digital signatures to cryptographic protocols. Essential technique

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Introduction,o a receiver referred to as .. She uses an insecure communication channel. For example, the channel could be a computer network or a telephone line. There is a problem if the message contains confidential information. The message could be intercepted and read by an eavesdropper. Or even worse, the a

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Symmetric-Key Encryption,et any significant information about its content. In this chapter, we give a short introduction to symmetric-key encryption. We explain the notions of stream and block ciphers. The operation modes of block ciphers are studied and, as a prominent example for block ciphers, the DES is described.

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Provably Secure Encryption,he security of cryptographic schemes and randomness are closely related. An encryption method provides secrecy only if the ciphertexts appear sufficiently random to the adversary. Therefore, probabilistic encryption algorithms are required. The pioneering work of Shannon on provable security, based