y
file can be specified with the --des-key-file server option.

If you pass this function a key_str argument, that string is used as the key
for decrypting the message.

If the crypt_str argument does not appear to be an encrypted string, MariaDB
returns the given crypt_str.

URL: https://mariadb.com/kb/en/des_decrypt/https://mariadb.com/kb/en/des_decrypt/