Cryptography & Information Security Notes in Hindi - RGPV Notes

Computer Science Engineering Tutorials in Hindi 7th Semester Notes in Hindi Year: 2026

Set A

Engineering Student Sample Exam Paper 2026 (RGPV)

CS703(A) – Cryptography & Information Security

VII Semester – B.Tech Computer Science Engineering

Model Question Paper – Set A
Time: Three Hours
समय: तीन घंटे
Maximum Marks: 70
अधिकतम अंक: 70

Instructions / निर्देश

  1. Attempt any five questions.
    किन्हीं पाँच प्रश्नों को हल कीजिए।
  2. All questions carry equal marks.
    सभी प्रश्न समान अंक के हैं।
  3. In case of any doubt, English version will be treated as final.
    किसी भी प्रकार की शंका की स्थिति में अंग्रेज़ी संस्करण मान्य होगा।

Q.1

14 Marks / 14 अंक

(a) Explain modular arithmetic and derive Euler’s theorem with suitable example.

(7 Marks)

उपयुक्त उदाहरण सहित मॉड्यूलर अंकगणित को समझाइए तथा Euler’s theorem का व्युत्पादन कीजिए।

(b) Explain cryptanalysis and compare Caesar cipher and Playfair cipher.

(7 Marks)

Cryptanalysis को समझाइए तथा Caesar cipher एवं Playfair cipher की तुलना कीजिए।

Q.2

14 Marks / 14 अंक

(a) Explain DES algorithm and discuss the importance of S-box in DES.

(7 Marks)

DES algorithm को समझाइए तथा DES में S-box के महत्व की व्याख्या कीजिए।

(b) Explain AES encryption process with key expansion and round transformations.

(7 Marks)

AES encryption प्रक्रिया को key expansion एवं round transformation सहित समझाइए।

Q.3

14 Marks / 14 अंक

(a) Explain RSA algorithm with suitable example of encryption and decryption.

(7 Marks)

RSA algorithm को encryption एवं decryption के उपयुक्त उदाहरण सहित समझाइए।

(b) Explain Diffie-Hellman Key Exchange algorithm and discuss computational and decisional problems.

(7 Marks)

Diffie-Hellman Key Exchange algorithm को समझाइए तथा computational एवं decisional समस्याओं की व्याख्या कीजिए।

Q.4

14 Marks / 14 अंक

(a) Define Hash Function. Differentiate between MD5 and SHA algorithms.

(7 Marks)

Hash Function को परिभाषित कीजिए तथा MD5 और SHA algorithms में अंतर स्पष्ट कीजिए।

(b) Explain Digital Signature Standard (DSS) with neat block diagram.

(7 Marks)

स्वच्छ ब्लॉक आरेख सहित Digital Signature Standard (DSS) को समझाइए।

Q.5

14 Marks / 14 अंक

(a) Explain Kerberos Authentication System with suitable diagram.

(7 Marks)

उपयुक्त आरेख सहित Kerberos Authentication System को समझाइए।

(b) Explain types of firewalls and discuss their role in network security.

(7 Marks)

Firewall के प्रकारों को समझाइए तथा नेटवर्क सुरक्षा में उनकी भूमिका की व्याख्या कीजिए।

Q.6

14 Marks / 14 अंक

(a) Explain SSL/TLS handshake protocol with diagram.

(7 Marks)

SSL/TLS handshake protocol को चित्र सहित समझाइए।

(b) Explain IPSec protocols AH and ESP used for secure transmission.

(7 Marks)

सुरक्षित transmission हेतु उपयोग किए जाने वाले IPSec protocols AH एवं ESP को समझाइए।

Q.7

14 Marks / 14 अंक

(a) Explain Steganography and discuss different tools used for hiding information.

(7 Marks)

Steganography को समझाइए तथा सूचना छिपाने हेतु प्रयुक्त विभिन्न tools की व्याख्या कीजिए।

(b) Explain vulnerability scanning tools and DoS attack understanding tools.

(7 Marks)

Vulnerability scanning tools एवं DoS attack understanding tools को समझाइए।

Q.8

14 Marks / 14 अंक

Attempt any two / किन्हीं दो को हल कीजिए

(a) Elliptic Curve Cryptography (ECC)

(7 Marks)

एलिप्टिक कर्व क्रिप्टोग्राफी (ECC)

(b) Differential Cryptanalysis

(7 Marks)

Differential Cryptanalysis

(c) SSL/TLS Protocols

(7 Marks)

SSL/TLS प्रोटोकॉल

CS703(A) – Cryptography & Information Security (VII Semester) | Model Question Paper – Set A | RGPV Style
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Exam Tip

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Focus on frequently asked questions and important topics

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Cryptography & Information Security Notes in Hindi - RGPV Notes Question Papers - Computer Science Engineering Tutorials in Hindi

Download Cryptography & Information Security Notes in Hindi - RGPV Notes previous year question papers for Computer Science Engineering Tutorials in Hindi 7th Semester Notes in Hindi. These RGPV question papers help you understand the exam pattern, important topics, and question distribution.

How to Use These Question Papers Effectively

  • Solve papers in exam-like conditions with time limits
  • Identify your weak areas and focus on them
  • Compare your answers with standard solutions
  • Practice all three sets (Set A, Set B, Set C) to cover different question patterns
  • Revise important concepts before attempting papers