'Cipher block chaining mode' presentation slideshows

More on Cryptography CS 136 Computer Security Peter Reiher October 9, 2012

More on Cryptography CS 136 Computer Security Peter Reiher October 9, 2012. Outline. Desirable characteristics of ciphers Stream and block ciphers Cryptographic modes Uses of cryptography Symmetric and asymmetric cryptography Digital signatures. Desirable Characteristics of Ciphers.

817 views • 69 slides

An Intro to Network Crypto

An Intro to Network Crypto. Jim Binkley- jrb@cs.pdx.edu. Crypto outline. overview symmetric crypto (DES ... encryption) hash/MAC/message digest algorithms asymmetric crypto (public key technology) DH - how to start a secure connection KDC - a little bit on shared secret servers

752 views • 58 slides

2.35k views • 51 slides

Unit -1

597 views • 49 slides

Network Security

619 views • 43 slides

Cryptography

Cryptography. Cryptography is the technique of secret writing. A cipher is a method of secret writing. The purpose is to convert an intelligible message, referred to as plaintext, into apparently random nonsense text, referred to as ciphertext.

618 views • 41 slides

CS363

Week 12 - Wednesday. CS363. Last time. What did we talk about last time? Making a business case for security Quantifying security. Questions?. Project 3. Security alert: Heartbleed.

488 views • 33 slides

CS363

Week 12 - Wednesday. CS363. Last time. What did we talk about last time? Making a business case for security Quantifying security. Questions?. Project 3. Security alert: Heartbleed.

503 views • 33 slides

Dooping the Investigator by don wood

Dooping the Investigator by don wood. This presentation will take a look at to prevent your information from being discovered by and investigator. Overview. BitLocker BCWipe PD-8700 Hard Drive Degausser & Physical Hard Drive Destroyer. Windows BitLocker.

345 views • 19 slides

Encryption Types & Modes Chapter 9

Encryption Types & Modes Chapter 9. Encryption Types Stream Ciphers Block Ciphers Encryption Modes ECB - Electronic Codebook CBC - Cipher Block Chaining CFB - Cipher Feedback OFB - Output Feedback. Stream Ciphers. One unit of the data stream is encrypted at a time.

278 views • 15 slides

Self-Healing in Wireless Networks

Self-Healing in Wireless Networks. The self-healing property is expected in many aspects in wireless networks: Encryption algorithms Key distribution mechanisms System protection. Overview of the DES. A block cipher: encrypts blocks of 64 bits using a 64 bit key

164 views • 0 slides