'Symmetric key' presentation slideshows

Part I: Crypto

Part I: Crypto. Chapter 2: Crypto Basics. MXDXBVTZWVMXNSPBQXLIMSCCSGXSCJXBOVQXCJZMOJZCVC TVWJCZAAXZBCSSCJXBQCJZCOJZCNSPOXBXSBTVWJC JZDXGXXMOZQMSCSCJXBOVQXCJZMOJZCNSPJZHGXXMOSPLH JZDXZAAXZBXHCSCJXTCSGXSCJXBOVQX ? plaintext from Lewis Carroll, Alice in Wonderland

3.24k views • 306 slides

A THREE ALGORITHM SUITE PROVIDES FLEXIBLE SECURITY

A THREE ALGORITHM SUITE PROVIDES FLEXIBLE SECURITY. A Presentation To The Joint Meeting Of Industry Canada, ANSI C12, and SCC31 by Bill Rush Institute of Gas Technology March 25, 1999 Phoenix, Arizona. A REVIEW OF PREVIOUS SECURITY STANDARDS PRESENTATIONS.

602 views • 49 slides

Acknowledgement

CAP6135: Malware and Software Vulnerability Analysis Basic Knowledge on Computer Network Security Cliff Zou Spring 2010. Acknowledgement. This lecture note is modified from the slides provided by textbook:

713 views • 48 slides

Chapter 8 Network Security

Chapter 8 Network Security. Slides adapted from the book and Tomas Olovsson. Roadmap. 8.1 What is network security? 8.2 Principles of cryptography 8.3 Message integrity Security protocols and measures: Securing TCP connections: SSL Network layer security: IPsec Firewalls.

657 views • 46 slides

Chapter 8: Network Security

718 views • 43 slides

Sound Approximations to Diffie-Hellman using Rewrite Rules

Sound Approximations to Diffie-Hellman using Rewrite Rules Christopher Lynch Catherine Meadows Naval Research Lab Cryptographic Protocol Analysis Formal Methods Approach usually ignores properties of algorithm But Algebraic Properties of Algorithm can be modeled as Equational Theory

712 views • 40 slides

Cryptography

500 views • 37 slides

Tor: The Second-Generation Onion Router

Tor: The Second-Generation Onion Router. Roger Dingledine, Nick Mathewson, Paul Syverson The Free Haven Project &Naval Research Lab Presented by: Corey White. Table of Contents. Background Information Tor Enhancements over Original Related Work Design Goals and Assumptions The Tor Design

722 views • 36 slides

1DT066 Distributed Information System Chapter 8 Network Security

561 views • 35 slides

Public Key Cryptography

Public Key Cryptography. Introduction. Public Key Cryptography. Unlike symmetric key, there is no need for Alice and Bob to share a common secret Alice can convey her public key to Bob in a public communication:. Encrypting w/ Public Keys. Public key schemes encrypt large blocks of data:

603 views • 35 slides

GS: Chapter 3 Encryption, Authentication and Java Cryptography

GS: Chapter 3 Encryption, Authentication and Java Cryptography. Cryptography & Java. Encryption Authentication Java Cryptography. Encryption. Encryption Basics: An algorithm ( or cipher) and a key are required in order to encrypt or decrypt messages. Example: the Caesar cipher (p.34)

605 views • 27 slides

Supporting Technologies III: Security

Supporting Technologies III: Security. 11/16 Lecture Notes. Outline. Internet Security encryption, digital signatures, digital certificates SSL, SET Firewalls Virtual Private Networks Electronic Payment Systems protocols electronic card systems (credit cards, elec. Wallet) ecash, echeck.

382 views • 24 slides

Secure Sockets Layer (SSL)

451 views • 22 slides

CCSDS Service Management Validation Test Quick Report

CCSDS Service Management Validation Test Quick Report. 12. March 2008 JAXA YAGI Nobuhiro/SUZUKI Kiyohisa. Contents.

531 views • 22 slides

Advanced Information Security

Advanced Information Security. Prof : Kwangjo Kim (Tel. x3550), kkj@kaist.ac.kr, http://vega.kaist.ac.kr/~kkj TA : Mr. Junhyun Yim junhyunv@kaist.ac.kr, HP:011-569-5460 Hour :14:40-16:00 (Tu. & Th.) Credit/Hour : 3/3 Code: CS548

356 views • 20 slides

Judges Administration & Database encryption

Judges Administration & Database encryption. Vu Dai Candidate for Bachelor in Computer Science. Definition of Term Use. CCSC Consortium for Computing Sciences in Colleges South Central Region PHP Hyper Text Preprocessing Scripting HTML Hyper Text Markup Language

296 views • 20 slides

Secure Access Control with Government Smart Cards

384 views • 18 slides

Cryptographic Security

Cryptographic Security. Security Considerations. Factors : reliance on unknown, vulnerable intermediaries (e.g., Internet routers) parties may have no personal or organizational relationship (e.g., e-commerce) use of automated surrogates (e.g., agents). Goals :

285 views • 13 slides

Public Key Cryptography

Colin Dougherty. Public Key Cryptography. What is Cryptography?. Private Symmetric key Example: AES Public Asymmetric keys Example: RSA. Applications. Real World Spies, NSA, CIA Financial Institutions Alice, Bob and Eve Computer Science Primes, factoring, hashing Randomness

332 views • 12 slides

Key Distribution

Key Distribution. Reference: Pfleeger, Charles P., Security in Computing, 2nd Edition, Prentice Hall, 1996. Symmetric Key Exchange Without Server. Assume that two users have a copy of a symmetric encryption key K. For a small number of messages, K may be used for encryption.

269 views • 9 slides