B.TechSemester 72025-26Cryptography And Network SecurityBCIT701
View PDFDownload

Cryptography And Network Security (BCIT701) - AKTU Question Paper 2025-26

B.Tech · Semester 7 · Free PDF Download

This is the official AKTU Cryptography And Network Security Previous Year Question Paper for B.Tech Semester 7, academic session 2025-26. Published by Dr. A.P.J. Abdul Kalam Technical University (AKTU/UPTU), Lucknow. Free PDF download — no login required.

Course:B.Tech
Semester:Semester 7
Session:2025-26
University:AKTU / UPTU

Rate this paper

Questions Asked in 2025-26

Cryptography And Network Security (BCIT701) — complete question paper · 70 marks · 3 Hours

Section AAttempt all q u e s t i o n s i n b r i e f . 02 x 7 = 14
  • a
    Define cryptography and state a ny two security services
  • b
    What is the difference betwee n stream cipher and block cipher? 1 K 2
  • c
    State Fermat’s Little Theorem
  • d
    What is the purpose of a digital signature?
  • e
    What is Diffie–Hellman ke y exchange used for?
  • f
    Define Public Key Infrastructure (PKI
  • g
    Mention any two functions of a firewall
Section BAttempt any three o f t h e f o l l o w i n g : 07 x 3 = 21
  • a
    Explain substitution and transposition ciphers with suitable examples
  • b
    Explain modular arithmetic an d Extended Euclidean Algorithm with example
  • c
    Explain authentication requirements and hash functions. Disc uss birthday attack
  • d
    Explain symmetric key distribution methods and Diffie–Hellma n key exchange
  • e
    Explain IP Security architect ure and its components
Section CAttempt any one p a r t o f t h e f o l l o w i n g : 07 x 1 = 07
  • a
    Describe the Feistel structur e and explain the working of DES
  • b
    Discuss block cipher modes of operation and explain Triple DES
  • a
    Describe the AES encryption and decryption process
  • b
    Explain RSA algorithm along w ith its security considerations
  • a
    Describe Secure Hash Algorit hm (SHA) and its security features
  • b
    Explain ElGamal Digital Signa ture technique and Digital Sign ature Standard (DSS)
  • a
    Describe X.509 certificates a nd Public Key Infrastructure (PKI)
  • b
    Explain Kerberos authenticati on protocol and electronic mail security using PGP
  • a
    Describe SSL and Secure Elect ronic Transaction (SET)
  • b
    Discuss intrusion detection sy stems, viruses, and the role o f firewalls in network security

Question text is extracted from the official AKTU question paper PDF above. Hindi translations are omitted — every question is printed in English in the original paper. Last verified: 2026-08-23.

Cryptography And Network Security — Other Year Papers

AKTU Cryptography And Network Security PYQs from other sessions

Cryptography And Network Security2023-24Cryptography And Network Security2024-25Cryptography And Network Security2025-26Cryptography And Network Security2022-23Cryptography And Network Security2025-26

More B.Tech Semester 7 (2025-26) Papers

Other subjects from same semester and session

Deep Learning2025-26Cloud Computing2025-26Design Thinking2025-26Renewable Energy Resources2025-26Internet Of Things2025-26Artificial Intelligence2025-26Wireless Mobile Communication2025-26Vlsi Design2025-26
View all B.Tech Semester 7 2025-26 papers →

Syllabus & More PYQs

Paper solve karne se pehle unit-wise syllabus dekh lo

AKTU 4th Year PYQs — All Branches