the first default password is pwd i recommend Turbo Mode, shift-click the green flag. Hover over the buttons to see what they do. Press H to input your own hash directly to the Database, useful for making your friends guess what the password is. Press o to export all of the hashes in a nice little package. If you use this, NEVER EVER put a super long password in it, or it will say infinity (because of how Scratch works) and any super long password will work. This is just a example, the passwords are not stored or sent anywhere, however I am not liable if someone uses this to steal your passwords. Use at your own risk.
This is a example of (badly) hashing passwords. It is better than just storing the passwords because if someone hacks your login database, they cannot get the passwords. This demo shows that even if you can see the password database, you cannot view the passwords, if they are hashed correctly. Also note that this is a badly designed Hashing library made by me, so it is really insecure. a real hash looks like this: $2a$12$Fg0j.x19986i9LEeOIcuTuB43fqL0bF3mCBfxm4aeDo1CZEmIp5BC (12345678, made with bCrypt.js)