Cryptography and Network Security Lab Experiments

This repository consist of all programs that I implemented for questions in lab syllabus.

Syllabus

• [x] "Hello world" XOR each char with 0
• [x] "Hello world" XOR, AND, OR each char with 127
• [x] Hill Cipher with given key and message
• [ ] Hill Cipher
• [x] Ceaser Cipher
• [x] Affine Cipher with given equation
• [x] Playfair Cipher with given key
• [x] Polyalphabetic Cipher
• [x] Autokey Cipher
• [x] Rail fence technique
• [x] Simple Columner Transposition technique
• [x] Advanced Columner Transposition technique
• [x] DES algorithm
• [x] Blowfish algorithm
• [x] Rijndael algorithm
• [x] RC4 logic in JAVA
• [x] Euclidean Algorithm
• [x] Advanced Euclidean Algorithm
• [x] Simple RSA Algorithm with small numbers
• [x] RSA Algorithm,
• [ ] Diffie-Hellman Key Exchange Mechanism using HTML and JS
• [x] Caluculate Message Digest of text using SHA-I in JAVA
• [x] Caluculate the Message Digest of text using MD5 in JAVA