What is Diceware?
Diceware is a system for building strong passwords that was developed by Arnold G. Reinhold. The Diceware method create strong passwords that are easy to remember but extremely difficult for hackers to crack.
Passwords contain random words from the dictionary, such as: alger klm curry blond puck horse.
Why use Diceware?
Passwords need two characteristics to thwart hackers. First, they must be unique - meaning not available in any of the publicly available lists of previously hacked passwords. Second, they must contain a lot of "entropy" - which roughly means that it would take a powerful computer a very long time to guess the password. Basically, a high entropy password is a long password.
Studies have shown that most people are not very good at thinking up unique, long passwords on their own. So that is why Diceware is a good method for passwords that you really want to be secure - such as the passwords for e-mail and financial accounts.
How does Diceware work?
You roll a die 5 times and write down each number. Then you look up the resulting five-digit number in the Diceware dictionary, which contains a numbered list of short words.
The Diceware creator recommends that people should use six words for their passwords.
Why should I buy a Diceware password?
You can definitely make one yourself, but Guardice does it for you in a second, so you do not have to worry about mistakes you could make.
How do you know Guardice is not stealing your passwords?
First of all, Guardice does not store any of the generated password. In second place, once you get your passwords you need to make some changes such as capitalizing some letters and/or adding symbols such as exclamations. This way it is not the exact same one that Guardice gave you.