Cryptography

GANPAT UNIVERSITY

FACULTY OF ENGINEERING AND  TECHNOLOGY

Programme

Bachelor of Technology

Branch/Spec.

Computer Science & Engineering (CS)

Semester

V

Version

1.0.0.0

Effective from Academic Year

2022– 23

Effective for the batch Admitted in

June 2020

Subject  code

2CSE50E24

Subject Name

CRYPTOGRAPHY

Teaching scheme

Examination scheme (Marks)

(Per week)

Lecture

(DT)

Practical

(Lab.)

Total

CE

SEE

Total

L

TU

P

TW

Credit

3

0

1

0

4

Theory

40

60

100

Hours

3

0

2

0

5

Practical

30

20

50

Pre-requisites:

Programming Language, Basics of Communication System

Objectives of the Course:

After learning the course the students should be able to:

• Understand the principles and practices of cryptographic techniques.
• Understand information security goals for designing secure systems.
• Apply security algorithms in solving real-life security problems in communicating systems.
• Apply security to information over the network and world wide web.

Theory syllabus

Unit

Content

1

Basics of Cryptography

Information Security understanding, Security goals, Security attacks, Security services, security mechanisms

4

2

Cryptographic Mathematics

Modular arithmetic, linear congruence, Algebraic structure, checking of primeness, quadratic congruence

4

3

Classical Ciphers

Symmetric cipher model, substitution ciphers, transposition ciphers, steganography

5

4

Modern symmetric key ciphers

Modern block ciphers, modern stream ciphers, Data Encryption standard, advanced encryption standard, Electronic code book mode, CBC, cipher feedback mode, output feedback mode

7

5

Public key cryptography

RSA, RSA proof, RSA attacks, Rabin cryptosystem, Key management: Diffie Hellman Key Exchange Algorithm

6

6

Message Authentication and Hash functions

Authentication requirements, functions, Message authentication codes (MAC), Hash functions, security of Hash functions

6

7

Hash algorithms, Digital Signatures

SHA- 512, Basics, digital signature standards

6

8

Network and System Security

Understanding of Worms, Virus, Trojan Horse, Malwares, IP and Network Security ,Web security Email Security, System Security, tools

7

Practical content:

Practicals will be based on performing web security attacks to understand security goals, Perform Substitution Techniques for Encryption, Perform Block Cipher Encryptions, Implement Digital Signature Algorithm, Perform Asymmetric Key Encryptions, Implement MAC.

Text Books:

1.

William Stallings: “Cryptography and Network Security – Principles and Practice”,Pearson Education.

Reference Books:

1.

Bruce Scheneir: “Applied Cryptography”, John Wiley.

2.

Behrouz Forouzan: “Cryptography & Network Security”,  TMH.

Course Outcomes:

COs

Description

CO1

Understand the principles and practices of cryptographic techniques.

CO2

Understand a variety of generic security threats and vulnerabilities, and identify & analyze particular security problems for given applications.

CO3

Apply security algorithms in solving real-life security problems in communicating systems.

CO4

Apply security to information over the network and world wide web.

Mapping of CO and PO: