Rule for validating if a password uses valid special characters / non-alphanumeric characters

[johnathon]

What is the exact rule you have in place for the password validation rule of special characters / non-alphanumeric characters?

[johnathon]

@johnathon

These are the steps FusionAuth takes to check whether a password contains special characters:

1. Convert the Java String to a char[] (a char is a 16-bit unicode value in Java)
2. Check each character c to determine whether it is a special character using
   !Character.isAlphabetic(c) && !Character.isDigit(c)
3. If any character in the string returns true for the above check, we consider it to contain a special character