(Python) Cryptography by Thomas Roccia (fr0gger)
Created the Tuesday 13 December 2022. Updated 2 days, 3 hours ago.
Description:
In this code, the cryptography module is imported and used to generate a new encryption key. The key is then used to encrypt the original message using the Fernet algorithm, resulting in an encrypted message. The encrypted message is then printed to the screen. The same key is then used to decrypt the encrypted message, resulting in the original message. This example demonstrates how cryptography can be used to secure the transmission of sensitive information. In the context of malware, this technique could be used to encrypt the payload or communication channels in order to avoid detection and analysis.
Code
# Import the cryptography module
from cryptography.fernet import Fernet
# Generate a new encryption key
key = Fernet.generate_key()
# Define the original message to be encrypted
message = "Hello, world!"
# Encrypt the message using the Fernet algorithm and the generated key
fernet = Fernet(key)
encrypted_message = fernet.encrypt(message.encode('utf-8'))
# Print the resulting encrypted message
print(encrypted_message)
# Decrypt the encrypted message using the Fernet algorithm and the same key
decrypted_message = fernet.decrypt(encrypted_message)
# Print the resulting decrypted message
print(decrypted_message.decode('utf-8'))