ELEM014
Security & Authenication (Level: M Credits: 15)

(Same as ELB4014 'Security and Authentication' for students on BUPT joint degree programmes)

This module is concerned with the principles and practice used for secure communications in the Internet and aims to give students an introduction to the principles and practice of cryptography and authentication used for network security.

At the end of this module each participant should be able to:

• understand the principles of cryptography and its uses in the Internet;
• understand the principles of public-key cryptography and its uses in the Internet have an understanding of message authentication and digital signatures;
• have an understanding of the security protocols and methods used in the Internet

This module is divided into three parts:

• Security and Cryptography: An introduction to security and cryptography. Encryption and key based algorithms. Stream and Block ciphers. Public key cryptography.
• Authentication: Authentication requirements. Message authentication codes. Hash functions. MACs. Secure Hash algorithm. Digital signatures. Authentication protocols.
• Network Security: Authentication Applications. Kerberos and X.509. Electronic Mail and PGP (Pretty Good Privacy). IP Security. Web security.