GTU · BE IT · Semester 6
GTU 3161606 Cryptography and Network security Old Question Papers PDF
Official Gujarat Technological University (GTU) old question papers PDF (Regular & Remedial) and step-by-step solved questions for Cryptography and Network security across 2025 – 2026 examinations.
17 questions GTU asked more than onceAsked in all 3 papers: Explain Diffie Hellman scheme with diagram. For Diffie- Hellman algorithm, two publically known numbers are prime number 23 and primitive root of it is 9. A selects the random integer 4 and B selects 3. Compute the public key of A and B. Also compute common secret key.See listExam papers
Most repeated questions
17 questions GTU set in two or more of 3 papers, most repeated first. Tap a year to open that paper at the question.
Explain Diffie Hellman scheme with diagram. For Diffie- Hellman algorithm, two publically known numbers are prime number 23 and primitive root of it is 9. A selects the random integer 4 and B selects 3. Compute the public key of A and B. Also compute common secret key.
Demonstrate the working of Kerberos Version 4 Authentication Dialogue with detailed steps.
Demonstrate the working of SSL Record Protocol with the help of necessary diagrams.
List types of digital signature and discuss in detail Elgamal digital signature scheme.
Construct a playfair matrix with the key “moonmission” and encrypt the message “greet”.
Find GCD(2740, 1760) using Euclidean algorithm. Show each intermediate result.
Explain X.509 authentication service.
Describe working of AES(Advance Encryption standard).
Discuss Data Encryption Standard with working structure.
Compare and contrast various block cipher mode of operations.
Show 7 more repeated questionsHide the 7 more
Discuss Public Key Cryptosystems with Applications.
What is Hash Function? Explain requirements for hash functions.
Find out inverse of 550 with extended Euclidean algorithm in Galois Field 1759.
In a public key system using RSA, the ciphertext intercepted is C=10 which is sent to the user whose public key is e=5, n=35. What is the plaintext M?
Define security attack, security mechanism and security services.
List the duties of a KDC.
What is a Message Authentication Code (MAC) and what is its primary use in cryptography?
Which branches take this subject
GTU's syllabus lists 3161606 for 3 branches. One set of papers serves all of them.
Semester 6: 2 branches
Computer Science & Engineering, Information Technology
Semester 6, elective: 1 branch
Computer Science & Engineering (Cyber Security)
Other Semester 6 subjects
Common questions
Are these GTU 3161606 Cryptography and Network security papers valid for both Regular and Remedial exams?
Yes. Gujarat Technological University (GTU) follows the same 70-mark syllabus, exam blueprint, and 23-mark passing cutoff for both Regular and Remedial (ATKT/backlog) examinations. All 3 past exam sessions (2025 – 2026) serve as comprehensive preparation for either attempt.
How can I download GTU 3161606 Cryptography and Network security old question papers PDF?
You can download official GTU 3161606 original question paper PDFs directly from the table above with 1 click and zero deceptive ads or wait timers. Every paper also includes interactive online questions with AI study prompts.
What is the passing mark for GTU Cryptography and Network security (3161606)?
The external theory exam carries 70 marks. The minimum passing cutoff is 23 marks (33%). Exam duration is 2.5 hours.
What is the GTU exam pattern for 3161606?
The examination contains 5 main questions of 14 marks each, totaling 70 marks. Questions 2 through 5 provide internal OR choices, typically split into 3-mark, 4-mark, and 7-mark questions.