Lecture Notes || SNS Courseware

Subject Details

Dept : CSD

Sem : 5

Regul : 2019

Faculty : N.Ganitha Aarthi

phone : NIL

E-mail : ganitha.n.csd@snsce.ac.in

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Lecture Notes

UNIT 1:

Security trends-Security attacks, services, and mechanism

Cryptographic Conventional Encryption

Classical encryption techniques:

Substitution ciphers

transposition ciphers

Block cipher principles

DES

Advanced Encryption Standard (AES).

UNIT 2:

Mathematics Of Symmetric and Asymmetric Key Cryptography

Introduction to Groups, Rings, and fields

Modular arithmetic

Euclidâ€™s Algorithm- Prime and primality testing

Fermatâ€™s and Eulerâ€™s theorem

Chinese Remainder theorem

RSA Algorithm

Diffie Hellman Key exchange

Hash Functions-Hash Algorithms (MD5, Secure Hash Algorithm).

Lecture Notes