CNS Unit 2 Part A: Mathematics of Symmetric Key Cryptography & Algebraic Structures

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CNS Unit 2 Part A ITAIML (4).p...
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By Sara Shaik

Category: Education

Language: English

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Detailed handwritten notes covering the mathematical foundations of Cryptography and Network Security (CNS). This document is specifically tailored for Unit 2 (Part A) and includes:Symmetric Key Cryptography: Introduction to symmetric algorithms, encryption/decryption processes, and comparison with asymmetric methods.+2Network Security Model: A complete breakdown of the security model, including sender/receiver roles, trusted third parties, and information channels.+2Algebraic Structures: Comprehensive definitions and axioms for Groups, Rings, and Fields.+2Advanced Mathematics: Coverage of Abelian Groups, Cyclic Groups, and Lagrange’s Theorem.+2Galois Fields ($GF$): Detailed explanation of Finite Fields ($GF(P)$ and $GF(2^n)$), including addition and multiplication modulo tables.+2Polynomial Arithmetic: Guides on modular polynomial arithmetic and irreducible polynomials used in modern encryption like AES.These notes are ideal for B.Tech/BE students (CSE/IT/AIML) preparing for university exams or competitive exams like GATE.

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