'Symmetric crypto algorithms' presentation slideshows

Summary from the last class

Summary from the last class. Security is multifaceted phenomenon Confidentiality, availability, integrity Various security threats and defense challenges Common defense flavors Prevent attacks Detect attacks and respond to them or sustain them Learn from mistakes Cryptography

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Chap 1: Introduction to Crypto Systems

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Chap 1: Introduction

Chap 1: Introduction. Some background The message is usually represented as M or P (plaintext), the encryption result is usually represented as C (ciphertext). C usually has the same length as M or even longer E(M) = C, D(C) = M D(E(M)) = M

288 views • 28 slides