Computer Network Security (BCA)

Security threats, cryptography, digital signatures, firewalls, VPN and network security protocols.

6 MonthsDuration 5Chapters24Topics

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Syllabus · पाठ्यक्रम

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01Unit 1: Security Concepts 5 topics

Confidentiality, integrity and availability
Threats, vulnerabilities and attacks
Passive and active attacks
Malware - virus, worm, trojan, ransomware
Security services and mechanisms

02Unit 2: Symmetric Cryptography 5 topics

Classical ciphers - Caesar, substitution, transposition
Block and stream ciphers
DES
AES
Key distribution problem

03Unit 3: Public Key Cryptography 4 topics

Principles of public-key cryptosystems
RSA algorithm
Diffie-Hellman key exchange
Key management

04Unit 4: Hashing, Signatures and Authentication 5 topics

Hash functions - MD5, SHA family
Message authentication codes
Digital signatures
Digital certificates and PKI
User authentication and passwords

05Unit 5: Network Security and Cyber Law 5 topics

Firewalls and their types
Intrusion detection systems
VPN and IPsec
SSL/TLS and HTTPS
E-mail security and the IT Act 2000

About

You will be able to

Explain security goals, threats, attacks and security services
Encrypt and decrypt with classical ciphers and describe DES and AES
Explain public-key cryptography - RSA and Diffie-Hellman key exchange
Describe hash functions, MACs, digital signatures and digital certificates
Explain firewalls, IDS, VPN, IPsec and SSL/TLS
Describe cyber laws in India, including the IT Act 2000

Who it is for

BCA students of Semester 6 (UP state universities, Lucknow University pattern)
Students interested in cyber security careers and certifications

What you need

Introduction to Network (BCA Semester 5)
Basic modular arithmetic (taught at the centre)

Questions

Which syllabus does this Computer Network Security course follow?

It follows the common UP state university BCA syllabus (University of Lucknow pattern) for BCA Semester 6. If your own university's syllabus differs, the centre follows your university's syllabus and unit order.

Are RSA numericals asked?

Yes. Small RSA key generation and encryption problems are common; the trainer teaches modular arithmetic first.

Is ethical hacking part of this course?

No hacking is taught. The trainer demonstrates safe tools such as Wireshark and firewall settings for awareness.