How can I use libraries for encryption in my application?

How can I use libraries for encryption in my application?

You can use libraries like OpenSSL, CryptoJS, or PyCryptodome depending on your programming language. What language are you using?

I'm using Python. Can you give me an example?

Sure! With PyCryptodome, you can encrypt data using AES like this:

from Crypto.Cipher import AES
from Crypto.Util.Padding import pad

key = b'Sixteen byte key'
data = b'Secret data'

cipher = AES.new(key, AES.MODE_CBC)
ct_bytes = cipher.encrypt(pad(data, AES.block_size))

Would you like to know more about decryption?

Yes, how do I decrypt the data?

To decrypt, you would use the same key and initialization vector (IV) that you used for encryption. Here's how:

from Crypto.Util.Padding import unpad

cipher = AES.new(key, AES.MODE_CBC, iv)
pt = unpad(cipher.decrypt(ct_bytes), AES.block_size)

Make sure to securely store your key and IV!