CEF 350 SECURITY AND CRYPTOSYSTEMS Exam 2025
About this paper
CEF 350: Exam Questions, June 28, header prints session as 2020/2021 (YEAR field printed as 2025, both reproduced and flagged), University of Buea, instructor Dr Tsague A.: Exercise 1, definitions, active attacks, symmetric-vs-asymmetric encryption, encryption techniques, CBC mode, security services, digital signature uses/schemes/requirements, hash-function properties, and Vigenere-vs-Caesar security comparison; Exercise 2, step-by-step Vigenere cipher decryption, columnar transposition cipher decryption, and a full RSA key-generation/encryption/decryption walkthrough with p=5, q=11; Exercise 3, Caesar-cipher decryption using the given frequency table.
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University of Buea
Faculty of Engineering and Technology - FET
Computer Engineering - CEF
SECURITY AND CRYPTOSYSTEMS
Exam · Second Semester · Level 300
From this paper
- 1.
Define: Confidentiality, Digital signature, Authentication, Encryption.
- 2.
Name and describe two (02) types of active attacks.
At a glance
- Course code
- CEF350 (CEF 350)
- Type
- Exam
- Year
- 2025
- Level
- Level 300
- Semester
- Second Semester
- Proposed solution
- Included
Where it's from
University
University of BueaFaculty
Faculty of Engineering and Technology - FETDepartment
Computer Engineering - CEF
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