RGPV CSE 7th Semester | Subject Explanation, Unit-wise Topics, Important Questions & Exam Preparation Guide
Cryptography & Information Security is an important open elective subject in RGPV CSE 7th semester. This subject explains how data is protected during communication, storage and transmission. It covers encryption, decryption, cryptographic algorithms, digital signatures, hashing, network security, web security and security tools.
The main purpose of this subject is to help students understand how modern systems protect confidentiality, integrity and availability of information.
This unit explains mathematical background, modular arithmetic, Euclid algorithm, Fermat theorem, Euler theorem, substitution cipher, Playfair cipher, DES, Triple DES and stream cipher.
This unit covers AES, public key cryptography, Diffie-Hellman key exchange, RSA algorithm, RSA signatures, Schnorr identification, elliptic curve cryptography and CRT.
This unit explains message authentication, digital signature, hash functions, MD, SHA, DSS, key management, secure channel, cryptanalysis and Kerberos authentication.
This unit covers network threats, firewalls, IDS, honeypots, wireless security, email security, PGP, S-MIME, IPSec, SSL/TLS and secure electronic transaction.
This unit explains security tools such as spoofing tools, footprinting tools, vulnerability scanning tools, NetBIOS enumeration, steganography tools, DoS tools and packet sniffing tools.
| Unit | Topics |
|---|---|
| Unit 1 | Mathematical background, modular inverse, Extended Euclid algorithm, Fermat theorem, Euler theorem, classical cryptosystem, substitution cipher, frequency analysis, Playfair cipher, DES, Triple DES, block cipher and stream cipher. |
| Unit 2 | AES, public key cryptosystem, discrete logarithmic problem, Diffie-Hellman, RSA, RSA signatures, Schnorr identification, primality testing, elliptic curve and Chinese Remainder Theorem. |
| Unit 3 | Message authentication, digital signature, key management, hash function, universal hashing, MD, SHA, DSS, cryptanalysis, secure channel and Kerberos. |
| Unit 4 | Network threats, network security controls, wireless security, honeypots, firewalls, IDS, email security, PGP, S-MIME, IPSec, IPv6, SSL/TLS and SET. |
| Unit 5 | Spoofing tools, footprinting tools, vulnerability scanning tools, NetBIOS enumeration, steganography tools, trojan detection tools, DoS tools and packet sniffing tools. |
PYQ Analysis will be updated soon. For now, students should focus on DES, AES, RSA, Diffie-Hellman, Digital Signature, Hashing, Kerberos, Firewalls, IDS, IPSec, SSL/TLS and security tools. These topics are useful for 7-mark and 14-mark answers.
Yes, this subject is scoring because many questions are theory-based, algorithm-based and diagram-based.
Unit 1, Unit 2, Unit 3 and Unit 4 are very important because DES, AES, RSA, hashing and network security are commonly asked topics.
Start with cryptography basics, then DES, AES, RSA, hashing, digital signature and finally network security protocols.
Yes, RSA is one of the most important algorithms. Prepare its steps, example, advantages and limitations.
Yes, diagrams of encryption process, DES structure, digital signature, firewall, IDS and security architecture can help you score better marks.
Yes, if you focus on important algorithms, definitions, differences and protocols, you can prepare this subject effectively in less time.