# Author: OMKAR PATHAK

# This program illustrates a simple Python encryption example using the RSA Algotrithm

# RSA is an algorithm used by modern computers to encrypt and decrypt messages. It is an asymmetric

# cryptographic algorithm. Asymmetric means that there are two different keys (public and private).

# For installation: sudo pip3 install pycrypto

from Crypto.PublicKey import RSA

from Crypto import Random

randomGenerator = Random.new().read

# Generating a private key and a public key

# key stores both the keys

key = RSA.generate(1024, randomGenerator) # 1024 is the size of the key in bits

print(key) # Prints private key

print(key.publickey()) # Prints public key

# Encryption using Public Key

publicKey = key.publickey()

encryptedData = publicKey.encrypt('My name is Omkar Pathak'.encode('utf-8'), 32)

print(encryptedData)

# Decryption using Private Key

decryptedData = key.decrypt(encryptedData)

print(decryptedData)