It follows the vein of some of the password rules and feedback reducing security itself. Like why disallow any characters or set a maximum password length in double digits? If you’re storing a hash of the password, the hash function can handle arbitrary length strings filled with arbitrary characters. They run on files, so even null characters need to work. If you do one hash on the client’s side and another one on the server, then all the extra computational power needed for a ridiculously long password will be done by the client’s computer.
And I bet at least one site has used the error message “that password is already in use by <account>” before someone else in the dev team said, “hang on, what?”.
It’s true, most of these rules are harmful, but also most are in common use and accepted, for some reason. I have heard of a password system that had that warning, perhaps even the account, but it was in a softwaregore screenshot context.
At my work they wanted better security, and made the rule of minimum 12 characters, must include all sorts of numbers, special characters, etc, no previously used password and it must be changed every month, 3 attempts then the account is locked and you have to call IT.
The result was that people wrote their passwords on post-its on the screen, so it led to worse security overall and they had ro relax the rules.
“Sorry, that password is already in use” ruins it for me. That’s not a realistic message to receive.
Maybe “Your password cannot be one you’ve used previously”.
It follows the vein of some of the password rules and feedback reducing security itself. Like why disallow any characters or set a maximum password length in double digits? If you’re storing a hash of the password, the hash function can handle arbitrary length strings filled with arbitrary characters. They run on files, so even null characters need to work. If you do one hash on the client’s side and another one on the server, then all the extra computational power needed for a ridiculously long password will be done by the client’s computer.
And I bet at least one site has used the error message “that password is already in use by <account>” before someone else in the dev team said, “hang on, what?”.
It’s true, most of these rules are harmful, but also most are in common use and accepted, for some reason. I have heard of a password system that had that warning, perhaps even the account, but it was in a softwaregore screenshot context.
Should be: “your password cannot be one of your last 24 passwords”
At my work they wanted better security, and made the rule of minimum 12 characters, must include all sorts of numbers, special characters, etc, no previously used password and it must be changed every month, 3 attempts then the account is locked and you have to call IT.
The result was that people wrote their passwords on post-its on the screen, so it led to worse security overall and they had ro relax the rules.
Should say by who. :)