What type of data is best to use for storing passwords in your application?

It is not recommended to store passwords in an application as plain strings or primitive data types, as this is insecure. It is better to use a byte array (byte[]) to store the password hash after applying a cryptographic hash function with a salt (e.g., PBKDF2, bcrypt, or Argon2).

Example of storing and processing a password:

1. The user enters a password.
2. A hash function with a salt is applied, resulting in a byte[].
3. This byte array is saved in the database.

This approach prevents storing passwords in plain text and enhances the application's security.