I am a newbi, and not sure if this is the place to ask for help. I want a encrypt/decrypt function, fn encrypt(a: &str) -> String fn decrypt(a: &str) -> String I want to use des, or aes ( not even sure what they mean), but it seems really difficult to create such functions, I asked AI, googled libraries, but they all seems supriingly complicated, and I can not make the compiler happy, simply because some type does not exist in some lib even AI said so. Any help with a complete example of encr...