mirror of
https://github.com/dmuth/diceware.git
synced 2024-12-22 04:12:01 +00:00
292 lines
12 KiB
HTML
292 lines
12 KiB
HTML
<!DOCTYPE html>
|
|
<html lang="en">
|
|
<head>
|
|
<meta charset="utf-8">
|
|
<meta http-equiv="X-UA-Compatible" content="IE=edge">
|
|
<meta name="viewport" content="width=device-width, initial-scale=1">
|
|
<!-- The above 3 meta tags *must* come first in the head; any other head content must come *after* these tags -->
|
|
<title>Diceware: Create Secure Passwords You Can Actually Remember!</title>
|
|
|
|
<!-- Bootstrap -->
|
|
<link href="//maxcdn.bootstrapcdn.com/bootstrap/3.3.4/css/bootstrap.min.css" rel="stylesheet">
|
|
<link href="./starter-template.css" rel="stylesheet">
|
|
|
|
<!-- Our different dice faces. -->
|
|
<link href="./dice.css" rel="stylesheet">
|
|
|
|
<!-- HTML5 shim and Respond.js for IE8 support of HTML5 elements and media queries -->
|
|
<!-- WARNING: Respond.js doesn't work if you view the page via file:// -->
|
|
<!--[if lt IE 9]>
|
|
<script src="https://oss.maxcdn.com/html5shiv/3.7.2/html5shiv.min.js"></script>
|
|
<script src="https://oss.maxcdn.com/respond/1.4.2/respond.min.js"></script>
|
|
<![endif]-->
|
|
|
|
<meta property="og:title" content="Diceware: Generate Secure Passwords You Can Actually Remember!" />
|
|
<meta property="og:description" content="Diceware is a password generator which creates passwords based on dicerolls keyed to a set of words." />
|
|
<meta property="og:url" content="https://www.dmuth.org/diceware/" />
|
|
<meta property="og:image" content="https://www.dmuth.org/diceware/dice.jpg" />
|
|
|
|
<meta name="twitter:card" content="summary_large_image" />
|
|
<meta name="twitter:site" content="@dmuth" />
|
|
<meta name="twitter:url" content="https://www.dmuth.org/diceware/" />
|
|
<meta name="twitter:title" content="Diceware: Generate Secure Passwords You Can Actually Remember!" />
|
|
<meta name="twitter:description" content="Diceware is a password generator which creates passwords based on dicerolls keyed to a set of words." />
|
|
<meta name="twitter:image" content="https://www.dmuth.org/diceware/dice.jpg" />
|
|
|
|
</head>
|
|
<body>
|
|
|
|
|
|
<div class="container">
|
|
|
|
<a id="github_ribbon" style="display: none; " href="https://github.com/dmuth/diceware"
|
|
><img style="position: absolute; top: 0; right: 0; border: 0;" src="https://camo.githubusercontent.com/365986a132ccd6a44c23a9169022c0b5c890c387/68747470733a2f2f73332e616d617a6f6e6177732e636f6d2f6769746875622f726962626f6e732f666f726b6d655f72696768745f7265645f6161303030302e706e67" alt="Fork me on GitHub" data-canonical-src="https://s3.amazonaws.com/github/ribbons/forkme_right_red_aa0000.png"></a>
|
|
|
|
<div class="starter-template">
|
|
<h1>Diceware Password Generator</h1>
|
|
<p class="lead">
|
|
Generate high-entropy passwords the easy way!
|
|
</p>
|
|
|
|
|
|
<!-- This row is completely hidden, but is used to hold elements
|
|
that get cloned after a dice roll. -->
|
|
<div class="row source" style="display: none; ">
|
|
<div class="col-md-12" style="height: 0px; ">
|
|
|
|
<div class="die dice1 dice_element" style="float: left; ">
|
|
<div class="dot center"></div>
|
|
</div>
|
|
|
|
<div class="die dice2 dice_element" style="float: left; ">
|
|
<div class="dot dtop dleft"></div>
|
|
<div class="dot dbottom dright"></div>
|
|
</div>
|
|
|
|
<div class="die dice3 dice_element" style="float: left; ">
|
|
<div class="dot dtop dleft"></div>
|
|
<div class="dot center"></div>
|
|
<div class="dot dbottom dright"></div>
|
|
</div>
|
|
|
|
<div class="die dice4 dice_element" style="float: left; ">
|
|
<div class="dot dtop dleft"></div>
|
|
<div class="dot dtop dright"></div>
|
|
<div class="dot dbottom dleft"></div>
|
|
<div class="dot dbottom dright"></div>
|
|
</div>
|
|
|
|
<div class="die dice5 dice_element" style="float: left; ">
|
|
<div class="dot dtop dleft"></div>
|
|
<div class="dot dtop dright"></div>
|
|
<div class="dot center"></div>
|
|
<div class="dot dbottom dleft"></div>
|
|
<div class="dot dbottom dright"></div>
|
|
</div>
|
|
|
|
<div class="die dice6 dice_element" style="float: left; ">
|
|
<div class="dot dtop dleft"></div>
|
|
<div class="dot dtop dright"></div>
|
|
<div class="dot center dleft"></div>
|
|
<div class="dot center dright"></div>
|
|
<div class="dot dbottom dleft"></div>
|
|
<div class="dot dbottom dright"></div>
|
|
</div>
|
|
|
|
<div class="dice_word dice_element" style="float: left; padding-left: 20px; padding-top: 25px; ">
|
|
</div>
|
|
|
|
<div class="results_words_key" >Your words are: </div>
|
|
<div class="results_words_value" ></div>
|
|
|
|
<div class="results_phrase_key" >Your passphrase is: </div>
|
|
<div class="results_phrase_value" ></div>
|
|
|
|
<div class="results_num_possible_key" ># of possible passwords: </div>
|
|
<div class="results_num_possible_value" ></div>
|
|
|
|
</div>
|
|
|
|
<div class="alert alert-danger bad_crypto" role="alert">
|
|
<span class="glyphicon glyphicon-exclamation-sign" aria-hidden="true"></span>
|
|
<span class="sr-only">Error:</span>
|
|
Whoa there! Your browser doesn't have the getRandomValues() function.
|
|
This means that dice rolls you make <em>will not be cryptogrpahically secure!</em><br/>
|
|
Please try another browser. Otherwise, proceed at your own risk.
|
|
</div>
|
|
|
|
</div> <!--/ row -->
|
|
|
|
<div class="row">
|
|
<div class="col-md-12">
|
|
|
|
<div class="message" ></div>
|
|
|
|
<h2 class="dice_num">
|
|
Number of Dice to roll:
|
|
</h2>
|
|
|
|
<div class="btn-group-lg" role="group" aria-label="...">
|
|
<button id="button-dice-2" type="button" class="btn btn-default dice_button">2</button>
|
|
<button id="button-dice-3" type="button" class="btn btn-default dice_button">3</button>
|
|
<button id="button-dice-4" type="button" class="btn btn-default dice_button active">4</button>
|
|
<button id="button-dice-5" type="button" class="btn btn-default dice_button">5</button>
|
|
<button id="button-dice-6" type="button" class="btn btn-default dice_button">6</button>
|
|
<button id="button-dice-7" type="button" class="btn btn-default dice_button">7</button>
|
|
<button id="button-dice-8" type="button" class="btn btn-default dice_button">8</button>
|
|
</div>
|
|
|
|
<br/>
|
|
<a name="roll_dice_button" ></a>
|
|
|
|
<button type="button" class="btn btn-default btn-lg btn-primary" id="roll_dice">
|
|
<span class="glyphicon glyphicon-play" aria-hidden="true" ></span> Roll Dice!
|
|
</button>
|
|
|
|
</div>
|
|
|
|
</div><!-- /row -->
|
|
<p/>
|
|
|
|
<div class="row">
|
|
<div class="col-md-12" >
|
|
<div class="results">
|
|
|
|
</div>
|
|
</div>
|
|
</div><!-- /row -->
|
|
|
|
|
|
<div class="row" style="text-align: left;">
|
|
<div class="col-md-12">
|
|
<h3>About Diceware</h3>
|
|
|
|
Weak passwords are a big flaw in computer security due to a lack of "entropy"
|
|
or randomness. For example, how many times have you used the name of a pet or relative or street
|
|
in a password, or perhaps the number "1"? Not very random, is it? :-)
|
|
Worse still, if
|
|
passwords are reused between services, <a href="http://www.businessinsider.com/biggest-password-mistake-2014-8"
|
|
>that increases your security risk</a>. This is not theoretical, <a href="http://www.techspot.com/news/65255-hackers-access-github-accounts-reusing-passwords-previous-leaks.html"
|
|
>this has already happened.</a>
|
|
</p>
|
|
|
|
Fact is, humans are terrible at remembering random combiations of letters and
|
|
numbers, but we are great at remembering phrases of words. That's where Diceware comes in.
|
|
</p>
|
|
|
|
This Diceware web app is based on the proposal at <a href="http://world.std.com/~reinhold/diceware.html">http://world.std.com/~reinhold/diceware.html</a>
|
|
wherein virtual dice are roled 5 times, and the 5 digit number used against a lookup table of words.
|
|
4 dice rolls gives you 4 random words which are easy for a human being to remember, yet have
|
|
a high amount of entropy which makes them hard to crack.
|
|
</p>
|
|
|
|
For more information on Diceware:
|
|
<ul>
|
|
<li><a href="http://world.std.com/~reinhold/diceware.html">The Diceware Passphrase FAQ</a></li>
|
|
<li><a href="http://world.std.com/~reinhold/diceware.wordlist.asc">Original Diceware word list</a> (This implementation uses <a href="#wordlist">a different wordlist...</a>)</li>
|
|
<li><a href="http://world.std.com/~reinhold/diceware.txt">Diceware for Passphrase Generation and Other Cryptographic Applications</a></li>
|
|
</ul>
|
|
|
|
For more information on the entropy in passphrases, I'd like to refer you
|
|
<a href="https://xkcd.com/936/">to this XKCD comic</a>.</p>
|
|
|
|
Diceware is a trademark of Arnold Reinhold.
|
|
|
|
<h3>FAQ: Why not use LastPass or a similar product?</h3>
|
|
|
|
By all means, feel free to do so. LastPass is an excellent product and I highly recommend it.
|
|
That said, there's no reason that Diceware cannot be used concurrently with LastPass. Personally,
|
|
I like passwords that I can remember.
|
|
|
|
|
|
<h3>I can't believe you're sending passwords over the Internet!</h3>
|
|
|
|
<a href="https://media.giphy.com/media/TlK63Euc9KArc2a0kEw/giphy.gif">Chill</a>. I'm not. Passwords are generated within your browser and do not leave it (unless you copy them out yourself).
|
|
|
|
|
|
<h3>FAQ: Are these dice rolls cryptographically secure?</h3>
|
|
|
|
Yes, insofar as we're using the
|
|
<a href="https://developer.mozilla.org/en-US/docs/Web/API/RandomSource/getRandomValues">getRandomValues() function in Javascript</a>,
|
|
and you trust that your
|
|
browser and computer have not been compromised or otherwise tampered with. Keep in mind that a not-so-theoretical attack
|
|
would be for an attacker to compromise the random number generator on your computer so that
|
|
anything that is encrypted (or passkeys generated) would be suspectible to less intense cryptoanalysis.
|
|
|
|
|
|
<h3>FAQ: Is the source available?</h3>
|
|
|
|
Yep! You can grab a copy at <a href="https://github.com/dmuth/diceware">https://github.com/dmuth/diceware</a>
|
|
</p>
|
|
|
|
In fact, if you are nervous about generating a password on a website (even though the password is actually
|
|
generated by Javascript in your browser), I would encourage you to download the source and run it locally.
|
|
</p>
|
|
|
|
If you do want to run Diceware locally, just download the source and run a webserver in Python with
|
|
this command: <tt style="background-color: #dddddd; ">python -m SimpleHTTPServer 8000</tt>. You will then able to access DiceWare at
|
|
<a href="http://localhost:8000/">http://localhost:8000/</a>.
|
|
|
|
|
|
<a name="wordlist"></a>
|
|
<h3>FAQ: Can you tell me more about the list of words?</h3>
|
|
|
|
I used to use <a href="http://world.std.com/~reinhold/diceware.wordlist.asc">the original wordlist</a>,
|
|
but it contained a lot of symbols, punctuation, numbers, and 2 and 3 letter words. I wanted to try a different
|
|
wordlist with longer words, no non-alphabetic characters, and words more commonly used. So I got
|
|
<a href="http://norvig.com/ngrams/">Peter Norvig's</a> list of <a href="http://norvig.com/ngrams/count_1w.txt"
|
|
>the 1/3rd million most frequently used words</a>.
|
|
|
|
<h3>FAQ: How many dice are rolled per word?</h3>
|
|
|
|
The default is 5 dice, which allows for 7,776 different words per roll. While I have some debug hooks
|
|
in the code so that you can run Diceware with <a href="?dice=6">6 dice per word</a> and
|
|
<a href="?dice=7">7 dice per word</a> (for 46,655 and 279,935 possible words, respectively), the words
|
|
used become more obscure, which makes them more difficult to remember, so I'm not entirely sure that is a good thing.
|
|
But for now, the functionality is there, if there is a desire for it.
|
|
|
|
|
|
<h3>FAQ: Why did you change the wordlist?</h3>
|
|
|
|
|
|
</p>
|
|
|
|
I am always considering what words I use in the wordlist. I may opt to use shorter words in the future.
|
|
|
|
|
|
<h3>Who built this? / Contact</h3>
|
|
|
|
My name is <a href="http://www.dmuth.org/">Douglas Muth</a>, and I am a software engineer in Philadelphia, PA.
|
|
</p>
|
|
|
|
There are several ways to get in touch with me:
|
|
<ul>
|
|
<li>Email to doug.muth AT gmail DOT com or dmuth AT dmuth DOT org</li>
|
|
<li><a href="http://www.facebook.com/dmuth">Facebook</a> and <a href="http://twitter.com/dmuth">Twitter</a></li>
|
|
<li><a href="http://www.linkedin.com/in/dmuth">LinkedIn</a></li>
|
|
</ul>
|
|
|
|
Feel free to reach out to me if you have any comments, suggestions, or bug reports.
|
|
|
|
|
|
</div>
|
|
|
|
</div>
|
|
|
|
</div><!-- /starter-template -->
|
|
|
|
</div><!-- /.container -->
|
|
|
|
|
|
<!-- jQuery (necessary for Bootstrap's JavaScript plugins) -->
|
|
<script src="//ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
|
|
<!-- Include all compiled plugins (below), or include individual files as needed -->
|
|
<script src="//maxcdn.bootstrapcdn.com/bootstrap/3.3.4/js/bootstrap.min.js"></script>
|
|
|
|
<script src="./main.js"></script>
|
|
<script>
|
|
Diceware.go();
|
|
</script>
|
|
|
|
</body>
|
|
</html>
|