UNIVERSITY OF KERALA - Marian Engineering College

B.Tech Comp. Sc. & Engg., University of Kerala 77
08.803 CRYPTOGRAPHY AND NETWORKS SECURITY 2 – 1 – 0
Module I (14 hours)
Symmetric Cipher Models- Substitution techniques- Transposition techniques- Rotor machines-
Steganography- DES: Simplified DES- Block Cipher principals- The Data Encryption Standard. The Strength
of DES- Differential and linear Cryptanalysis- Block Cipher Design principles- Block Cipher modes of
operations- IDEA: Primitive operations- Key expansions- One round, Odd round, Even Round- Inverse keys
for description.
AES: Basic Structure- Primitive operation- Inverse Cipher- Key Expansion, Rounds, Inverse Rounds.
Module II (13 hours)
Public key Cryptography :- Principles of Public key Cryptography Systems, Number theory- Modular
arithmetic, Prime numbers. RSA algorithms- Key Management - Diffie-Hellman Key Exchange, Elliptic
curve cryptography- Authentication requirements- Authentication functions- Message authentication codes-
Hash functions- SHA, MD5, Security of Hash functions and MACS- Digital signatures- Authentication
protocols- Digital signature standards.
Module III (12 hours)
Network security: Electronic Mail Security: Pretty good privacy- S/MIME
IP Security: Architecture- authentication Header- Encapsulating Security payload- Combining Security
associations- Key management. Web Security: Web Security considerations- secure Socket Layer and
Transport layer Security- Secure electronic transaction. Firewalls-Packet filters- Application Level Gateway-
Encrypted tunnels.
Text Books:
1. Cryptography and Network Security – William Stallings, Pearson Education
2. Cryptography and Network Security – Behrouz A. Forouzan, Tata McGraw-Hill.
3. Applied Cryptography, Protocols, Algorithms, and Souce Code in C, 2 nd Edn – B. Schneier, Wiley.
Reference Books:
1. Network Security – Charlie Kaufman, Radia Perlman, Mike Speciner.
Internal Continuous Assessment (Maximum Marks-50)
25 Marks - Tests (minimum 2)
15 Marks - Assignments (minimum 3) such as home work, problem solving, literature survey, seminar,
term-project, software/hardware exercises, etc.
10 Marks - Regularity in the class
University Examination Pattern
PART A: Short answer questions 10 x 4 marks=40 marks
All questions are compulsory. There should be at least three questions
from each module and not more than four questions from any module.
PART B: Descriptive/Analytical/Problem solving questions 3 x 20 marks=60 marks
Candidates have to answer one question out of two or two questions
out of four from each module
Maximum Total Marks: 100