How do I implement AES encryption in my application?

How do I implement AES encryption in my application?

To implement AES encryption, you need to choose a programming language and a library that supports AES. Which language are you using?

I'm using Python. What library should I use?

For Python, you can use the pycryptodome library. You can install it using pip: pip install pycryptodome.

What are the basic steps to encrypt and decrypt data using this library?

First, generate a key and an initialization vector (IV). Then, use the AES.new() method to create a cipher object for encryption and decryption.

Can you provide a code example?

Sure! Here's a simple example:

from Crypto.Cipher import AES
from Crypto.Util.Padding import pad, unpad
import os

key = os.urandom(16)  # AES key must be either 16, 24, or 32 bytes long
iv = os.urandom(16)

cipher = AES.new(key, AES.MODE_CBC, iv)

# Encrypting
plaintext = b'This is a secret message.'
ct_bytes = cipher.encrypt(pad(plaintext, AES.block_size))

# Decrypting
cipher_decrypt = AES.new(key, AES.MODE_CBC, iv)
pt = unpad(cipher_decrypt.decrypt(ct_bytes), AES.block_size)
print(pt)