How to make a encryption function?

Question

Is posible create a simple function to encrypt without difficulty?

Answer 1

Encryption the regular type we all know is a tiny bit difficult to implement as you need domain specific knowledge in maths and crypto. https://www.tutorialspoint.com/cryptography/index.htm

Loop up 'how to write ciphers', 'encryption algorithms'
Then check the basic ones like the caesar cipher. That should give you a rough idea of the same.

Answer 2

sure, all your codes for the encryption will be in a function