Example of Encoded and Encrypted messages

Example of Encoded and Encrypted messages

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Encoded messages are transformed using a specific algorithm or method to represent data in a different format, often for obfuscation or compression. Here's an example using  Base64 encoding:

Original message: "Hello, world!"

Encoded message: "SGVsbG8sIHdvcmxkIQ=="

python

import base64

original_message = "Hello, world!"

encoded_message = base64.b64encode(original_message.encode()).decode()

print("Encoded message:", encoded_message)

Here's an example using symmetric encryption with theA dvanced Encryption Standard (AES) algorithm:

Original message: "Sensitive information"

Key: "mysecretkey"

Encrypted message (in hexadecimal representation): "64c2fc59f91a1d0e1b6db437f3189d47"

python

from Crypto.Cipher import AES

from Crypto.Util.Padding import pad, unpad

from Crypto.Random import get_random_bytes

import binascii

def encrypt_message(message, key):

    cipher = AES.new(key.encode(), AES.MODE_CBC, get_random_bytes(AES.block_size))

    ciphertext = cipher.encrypt(pad(message.encode(), AES.block_size))

    return binascii.hexlify(ciphertext).decode()

def decrypt_message(encrypted_message, key):

    cipher = AES.new(key.encode(), AES.MODE_CBC, get_random_bytes(AES.block_size))

    decrypted = cipher.decrypt(binascii.unhexlify(encrypted_message))

    return unpad(decrypted, AES.block_size).decode()

original_message = "Sensitive information"

key = "mysecretkey"

encrypted_message = encrypt_message(original_message, key)

print("Encrypted message:", encrypted_message)

decrypted_message = decrypt_message(encrypted_message, key)

print("Decrypted message:", decrypted_message)