Скачать презентацию Computer Security 3 e Chapter 1 Cryptography Скачать презентацию Computer Security 3 e Chapter 1 Cryptography

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Computer Security 3 e Computer Security 3 e

Chapter 1: Cryptography Chapter 1: Cryptography

Cryptography Cryptography

Origins of Cryptography Origins of Cryptography

Old Paradigm intruder Old Paradigm intruder

New Paradigm TTP New Paradigm TTP

Law Enforcement LEA Law Enforcement LEA

Communications Security Communications Security

Cryptographic Keys Cryptographic Keys

Shifting the Goal Post Shifting the Goal Post

Crypto in Computer Security Crypto in Computer Security

Modular Arithmetic Modular Arithmetic

Fermat’s Little Theorem Fermat’s Little Theorem

Difficult Problems Difficult Problems

Integrity Check Functions Integrity Check Functions

One-way Functions One-way Functions

Collisions Collisions

Collision Resistance Collision Resistance

Birthday Paradox Birthday Paradox

Checksums Checksums

Discrete Exponentiation Discrete Exponentiation

Construction Construction

Construction Construction

HMAC (simplified) HMAC (simplified)

Digital signatures Digital signatures

Digital Signatures Digital Signatures

Digital Signatures Digital Signatures

One-time Signatures One-time Signatures

Digital Signature Algorithm Digital Signature Algorithm

Digital Signature Algorithm Digital Signature Algorithm

RSA Signatures RSA Signatures

RSA Signatures RSA Signatures

Performance Gains Performance Gains

Factorization & RSA Factorization & RSA

MACs & Digital Signatures MACs & Digital Signatures

Encryption Encryption

Terminology Terminology

Symmetric Key Encryption Symmetric Key Encryption

Block Cipher Basics Block Cipher Basics

Round Structure Round Structure

Feistel Ciphers Feistel Ciphers

Algorithms Algorithms

Data Encryption Standard Data Encryption Standard

Comments on Security Comments on Security

Using Encryption for Real Using Encryption for Real

Electronic Code Book Mode Electronic Code Book Mode

Error Propagation Error Propagation

Cipher Block Chaining Mode Cipher Block Chaining Mode

Cipher Block Chaining Mode Cipher Block Chaining Mode

Cipher Block Chaining Mode Cipher Block Chaining Mode

A Note on Plaintexts A Note on Plaintexts

Cipher Feedback Mode Cipher Feedback Mode

More Modes More Modes

Public key Encryption Public key Encryption

Encryption with Public Keys Encryption with Public Keys

Public key Encryption Public key Encryption

Public Key Infrastructures Public Key Infrastructures

RSA Encryption RSA Encryption

RSA Encryption RSA Encryption

Padding Padding

Bleichenbacher’s Attack Bleichenbacher’s Attack

Strength of Mechanisms Strength of Mechanisms

Performance Performance

Performance Performance

Comment on PKC Comment on PKC