Introduction to Cryptography

Modular Arithmetic and Historical Ciphers

Stream Ciphers, Random Numbers and the One Time Pad

Stream Ciphers and Linear Feedback Shift Registers

Data Encryption Standard (DES): Encryption

Data Encryption Standard (DES): Key Schedule and Decryption

Introduction to Galois Fields for the AES

Advanced Encryption Standard (AES)

Multiple Encryption and Brute-Force Attacks

Number Theory for PKC: Euclidean Algorithm, Euler's Phi Function & Euler's Theorem

The RSA Cryptosystem and Efficient Exponentiation

Diffie-Hellman Key Exchange and the Discrete Log Problem

The Generalized Discrete Log Problem and the Security of Diffie-Hellman

Elgamal Encryption Scheme

Introduction to Elliptic Curves

Elliptic Curve Cryptography (ECC)

Digital Signatures and Security Services

Elgamal Digital Signature

Hash Functions

SHA-1 Hash Function

SHA-3 Hash Function