1. Email Security 2. Email Security email is one of the most widely used and regarded network servicescurrently message contents are not securemay be inspected either in…

A Practical Password based Two Server Authentication and Key Exchange System 1. ABSTRACT Most password-based user authentication systems place total trust on the authentication…

Slide 11 Pretty Good Privacy (PGP) Security for Electronic Email Slide 2 2 There are two main schemes which are especially designed to provide confidentiality and authentication…

Slide 1KERBEROS LtCdr Samit Mehra (05IT 6018) Slide 2 What is Kerberos? Motivation Why Kerberos? Firewall Vs Kerberos Kerberos assumptions How does Kerberos work? Weakness…

Slide 1Cryptography and Network Security Chapter 18 Fifth Edition by William Stallings Lecture slides by Lawrie Brown Slide 2 Chapter 15 – Electronic Mail Security Despite…

1. HTTP/HTTPS Amit Kumar Singh Image: Danilo Rizzuti / FreeDigitalPhotos.net 2. HTTP HyperText Transfer Protocol Invented by Tim Berners-Lee An Application Layer Protocol…

1. Tutorial: Windows Cryptographic API and Session Key Management Dr. Edwin Hernandez IEEE SOUTHEAST CONFERENCE 2005 2. Outline Problem: Key management and Storage Microsoft’s…

Slide 1E-mail Security: PGP and S/MIME Slide 2 2 Outline  PGP – services – message format – key management – trust management  S/MIME – services – message…

Slide 1Email Security 1 Slide 2 email is one of the most widely used and regarded network services currently message contents are not secure may be inspected either in transit…

Slide 1 Basic Protocols Schneier Ch. Three Slide 2 Key Exchange w/ Symmetric Crypto 1.Desire A and B on network, sharing secret key with KDC. How??? 2.A request session key…