GTU · BE Computer · Semester 7
GTU 3170720 Information security (IS) Old Question Papers & Solutions PDF
Official Gujarat Technological University (GTU) old question papers PDF (Regular & Remedial) and step-by-step solved questions for Information security (IS) across 2024 – 2026 examinations.
22 questions GTU asked more than onceAsked in all 4 papers: Draw the operation performed in one round of DES encryption.See listExam papers
Most repeated questions
22 questions GTU set in two or more of 4 papers, most repeated first. Tap a year to open that paper at the question.
Draw the operation performed in one round of DES encryption.
Summer 2026 Q2b Winter 2025 Q3c OR Summer 2025 Q2c Summer 2024 Q2c
Discuss RSA algorithm, focusing on its computational aspects and security. Discuss how public and private keys are generated and used in encryption and decryption.
Describe the Diffie-Hellman Key Exchange algorithm and how it enables secure key exchange between two parties. Explain the man-in-the-middle attack and how it can compromise the security of Diffie-Hellman.
List various alternatives used for key distribution in symmetric key cryptography. Also discuss the issue with key distribution.
Explain the following properties of hash function
Explain signing in DSA algorithm.
List various modes of operations of block cipher. Explain any three of them briefly.
Discuss the fast and efficient algorithm use for exponentiation in RSA.
Draw and explain round function of SHA512 algorithm
Discuss the Secure Hash Algorithm (SHA) family. Explain how SHA functions are used in ensuring data integrity and their role in cryptographic applications.
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Discuss Kerberos as a secure authentication protocol. Explain its key components and how it protects against replay attacks.
Discuss key expansion process of DES algorithm.
How signature can be verified in ElGamal digital signature
Briefly describe the role of X.509 certificates in secure communication.
Construct a Playfair matrix with the key “engineering”. And encrypt the message “test this process”.
Draw the model for Digital Signature.
Define Confusion and Diffusion
What is symmetric cipher? List requirements for it.
List applications of Cryptographic Hash Function
Discuss generation of a private/public key pair in Schnorr digital signature
What is a nonce? What is the difference between a session key and a master key?
List and explain any three active attack?.
Which branches take this subject
GTU's syllabus lists 3170720 for 1 branch. One set of papers serves all of them.
Semester 7, elective: 1 branch
Computer Engineering
Other Semester 7 subjects
Common questions
Are these GTU 3170720 Information 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 4 past exam sessions (2024 – 2026) serve as comprehensive preparation for either attempt.
How can I download GTU 3170720 Information security old question papers PDF?
You can download official GTU 3170720 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 Information security (3170720)?
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 3170720?
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.