'Block cipher principles' diaporamas de présentation

SYMMETRIC CIPHERS

SYMMETRIC CIPHERS. Contents. Classical encryption techniques Block ciphers and the data encryption standard Basic concepts in number theory and finite fields Advanced encryption standard Block cipher operation Pseudorandom number generation and stream ciphers.

1.35k views • 73 slides

Network Security

Network Security. Professor Adeel Akram. Modern Block Cyphers. Outline. Modern Block Cyphers Block vs. Stream Cyphers Block Cipher Principles Substitution-Permutation Ciphers Confusion and Diffusion Feistel Cipher Data Encryption Standard (DES) Advanced Encryption Standard

664 views • 66 slides

Infromation Security

Infromation Security. Depart. of Computer Science and Engineering ???( Liu Shengli) Tel: 62932135 Email: liu-sl@cs.sjtu.edu.cn. Block Ciphers and DES, AES. ???( Liu Shengli) Tel: 62932135 Email: liu-sl@cs.sjtu.edu.cn. Block vs Stream Ciphers.

578 views • 46 slides

Chapter 3: Block Ciphers and the Data Encryption Standard

667 views • 45 slides

CSCE 715: Network Systems Security

CSCE 715: Network Systems Security. Chin-Tser Huang huangct@cse.sc.edu University of South Carolina. Block Ciphers. One of the most widely used types of cryptographic algorithms Provide confidentiality and/or authentication services Eg. DES (Data Encryption Standard).

434 views • 43 slides

CSCE 715: Network Systems Security

CSCE 715: Network Systems Security. Chin-Tser Huang huangct@cse.sc.edu University of South Carolina. Block Ciphers. One of the most widely used types of cryptographic algorithms Provide confidentiality and/or authentication services Eg. DES (Data Encryption Standard).

434 views • 43 slides

Announcement

Announcement. Grading adjusted 10% participation and two exams 20% each Newsgroup up Assignment upload webpage up Homework 1 will be released over the weekend. Review. What is security: history and definition Security policy, mechanisms and services Security models. Outline.

435 views • 42 slides

Outline

Outline. Overview of Cryptography Classical Symmetric Cipher Modern Symmetric Ciphers (DES). Basic Terminology. plaintext - the original message ciphertext - the coded message cipher - algorithm for transforming plaintext to ciphertext

519 views • 40 slides

Outline

Outline. Overview of Cryptography Classical Symmetric Cipher Modern Symmetric Ciphers (DES). Basic Terminology. plaintext - the original message ciphertext - the coded message cipher - algorithm for transforming plaintext to ciphertext

591 views • 40 slides

Outline

Outline. Overview of Cryptography Classical Symmetric Cipher Modern Symmetric Ciphers (DES). Basic Terminology. plaintext - the original message ciphertext - the coded message cipher - algorithm for transforming plaintext to ciphertext

411 views • 40 slides

Outline

Outline. Overview of Cryptography Classical Symmetric Cipher Modern Symmetric Ciphers (DES). Basic Terminology. plaintext - the original message ciphertext - the coded message cipher - algorithm for transforming plaintext to ciphertext

406 views • 40 slides

Overview of Cryptographic Techniques

Overview of Cryptographic Techniques. Hector M Lugo-Cordero CIS 4361 Secure Operating System Administration. 1. Resources Used. Lecture slides from Dr Ratan Guha CNT 6519 Wireless Security Forensics Cryptography and Network Security, Fourth Edition, by William Stallings

431 views • 33 slides

Crypto - Administrivia

178 views • 8 slides