Which encryption algorithm to choose?

Question

Python

I need to encrypt sensitive web backend data in a db. Which encryption algorithm to choose? Which one is best for strings that are no more than 256 characters long? Is it possible for the encoded string to be the same length?

Answer 1

Where is the encryption key stored?
In the same base? At the user?
What do you want to do?
So that only the user can decrypt the data and encrypt it? So that a casual glance at the monitor could not remember the data?
I think that here you need to use something symmetrical like AES-256.