├── static
    ├── style.css
    └── js
    │   ├── secrets.min.js
    │   └── qrcode.min.js
├── README.md
├── index.html
├── update.html
└── generate.html


/static/style.css:
--------------------------------------------------------------------------------
 1 | * {
 2 |     box-sizing: border-box;
 3 | }
 4 | 
 5 | html,body {
 6 |     font-family: sans-serif;
 7 |     line-height: 1.2rem;
 8 | }
 9 | 
10 | h1 {
11 |     color: green;
12 |     margin-left: .5rem;
13 | }
14 | 
15 | input[type="button"] {
16 |     font-size: 5em;
17 |     font-weight: bold;
18 | }
19 | 
20 | .textarea > label {
21 |   display: block;
22 | }
23 | 
24 | .box {
25 |   box-shadow: -1px 2px 5px gray;
26 |   padding: .2rem .5rem;
27 |   margin-bottom: 2rem;
28 |   max-width: 800px;
29 | }
30 | 
31 | .box .row {
32 |   margin: 0.45em 0;
33 | }
34 | 
35 | .ciphertext {
36 |   font-size:  1.2em;
37 |   margin-bottom: 1em;
38 | }
39 | 


--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
 1 | # Pass share
 2 | 
 3 | This tool is for setting up a way for others (family or those you mostly trust) to recover a master passphrase in the event you aren't able to due to death or illness. It's designed with 1password's master passphrase in mind
 4 | 
 5 | This is obviously a fairly tricky thing to do, and involves a few compromises.
 6 | 
 7 | Check out the [Generator](https://lox.github.io/pass-share/generate.html) to get a sense of how it works.
 8 | 
 9 | ## Approach
10 | 
11 | * Passphrase is encrypted with a randomly generated key and IV.
12 | * The intermediate ciphertext and IV are printed out and stored somewhere physical that your loved ones could access. The fact that this portion is offline provides a "something you have" vs the keys later which are "something you know". This prevents brute force attacks with out physical access. It also means you can update your encrypted passphrase without re-distributing shares.
13 | * The intermediate key is split into shares using [Shamir's threshold secret sharing scheme](http://en.wikipedia.org/wiki/Shamir's_Secret_Sharing) using a customizable threshold and number of shares.
14 | * The shares are distibuted as makes sense to people you trust. You might choose a consensus of 2 and distribute it to 3 people, such that no one person could act alone. In my case I'm going with 4 shares and a consensus of 2. My wife gets 2 shares, and I give a backup share to two family members. This means that even if both my wife and I go, the backups can still combine their shares to meet the threshold.
15 | 
16 | ## Updating
17 | 
18 | Provided you keep track of intermediate key that is distributed in shares, you can update the passphrase so that you can actually update your Master Passphrase over time.
19 | 
20 | See https://lox.github.io/pass-share/update.html.
21 | 
22 | ## Recovery
23 | 
24 | When the shares are distributed, they come with instructions along the lines of:
25 | 
26 | > This is a piece of a secret code, that when combined with X others can be used to recover Lachlan's 1password Master Password in the event something has happened to him.
27 | >
28 | > Your code is: `801203c28043c4576a7fd43530cd66f4898a7b4e704833a32dadf13a83bbda343705d3fb5b1970d1160e33cc1ca01c3fd75`
29 | >
30 | > You need to get in touch with at least X other people on this list:
31 | >
32 | > * Person 1 <blah@blah.com>
33 | > * Person 2 <blah@blah.com>
34 | > * Person 3 <blah@blah.com>
35 | >
36 | > You will also need the recovery kit that is located  in his desk at his primary residence.
37 | >
38 | > When you have enough secret code pieces and the recovery kit, visit this page:
39 | >
40 | > https://lox.github.io/pass-share/
41 | >
42 | > Enter your code pieces, and the encrypted passphrase from the paper you got from the desk. Press "recover".
43 | >
44 | > At this stage you have the passphrase and you can access Lachlan's 1password vault.
45 | >
46 | > Good luck!
47 | 
48 | 
49 | ## Risks
50 | 
51 | * Sarah is like "What?"
52 | * Nobody cares about my passwords
53 | * WebCrypto API breaks in future
54 | * Web page is inaccessible (Github pages)
55 | * Can't access encrypted passphrase at residence
56 | * Family conspires against me 🤷🏼‍♂️
57 | 
58 | ## Todo
59 | 
60 | * [ ] Less horrible design, with better words
61 | * [ ] Decide whether passphrase should be padded before intermediate encryption.
62 | * [ ] PDF Generator?
63 | 


--------------------------------------------------------------------------------
/index.html:
--------------------------------------------------------------------------------
  1 | <!DOCTYPE html>
  2 | <html>
  3 |   <head>
  4 |     <meta charset="utf-8">
  5 |     <title>Recover Passphrase</title>
  6 |     <link rel="stylesheet" href="static/style.css">
  7 |     <script type="text/javascript" src="static/js/secrets.min.js"></script>
  8 |   </head>
  9 |   <body>
 10 |     <main>
 11 |       <h1>Recover Passphrase</h1>
 12 |       <section class="combine box">
 13 |         <div class="textarea row">
 14 |           <label for="shares">Enter passphrase shares, one per line:</label>
 15 |           <textarea id="shares" name="shares"  cols="100%" rows="10"></textarea>
 16 |         </div>
 17 |         <div class="row">
 18 |           <label for="encrypted">Encrypted text:</label>
 19 |           <input type="text" id="encrypted" encrypted="secret" size="80"></input>
 20 |         </div>
 21 |         <input class="recover-button" type="button" value="Recover">
 22 |       </section>
 23 |       <section class="result">
 24 |       </section>
 25 |     </main>
 26 |   </body>
 27 |   <script type="text/javascript">
 28 |   function convertBase64ToArrayBuffer(base64) {
 29 |     var binary_string =  window.atob(base64);
 30 |     var len = binary_string.length;
 31 |     var bytes = new Uint8Array( len );
 32 |     for (var i = 0; i < len; i++)        {
 33 |         bytes[i] = binary_string.charCodeAt(i);
 34 |     }
 35 |     return bytes.buffer;
 36 |   }
 37 | 
 38 |   async function recoverSecretFromShares(ciphertext, shares) {
 39 |     // Combined shares are hex version of key
 40 |     let combined = secrets.combine(shares);
 41 | 
 42 |     // Convert hex output into an array buffer
 43 |     let rawKey = new Uint8Array(combined.match(/[\da-f]{2}/gi).map(function (h) {
 44 |       return parseInt(h, 16)
 45 |     }))
 46 | 
 47 |     // Import the raw key into a CryptoKey
 48 |     let key = await window.crypto.subtle.importKey(
 49 |       "raw",
 50 |       rawKey,
 51 |       "AES-GCM",
 52 |       true,
 53 |       ["encrypt", "decrypt"]
 54 |     );
 55 | 
 56 |     console.log("key", key);
 57 | 
 58 |     // Ciphertext comes in as base64 encoded array buffer
 59 |     let buf = new Uint8Array(convertBase64ToArrayBuffer(ciphertext));
 60 | 
 61 |     console.log("ciphertext", buf);
 62 | 
 63 |     // Split cipher buffer into [ keylength, ciphertext, iv ]
 64 |     let keyLength = buf.slice(0, 1)[0];
 65 |     let encrypted = buf.slice(1, keyLength+1);
 66 |     let iv = buf.slice(1 + keyLength);
 67 | 
 68 |     console.log("keyLength", keyLength);
 69 |     console.log("encrypted", encrypted);
 70 |     console.log("iv", iv);
 71 | 
 72 |     let result = await window.crypto.subtle.decrypt(
 73 |       { name: "AES-GCM", iv: iv },
 74 |       key,
 75 |       encrypted
 76 |     );
 77 | 
 78 |     // Decode ArrayBuffer to string for display
 79 |     return String.fromCharCode.apply(null, new Uint8Array(result));
 80 |   }
 81 | 
 82 |   // Grab the ciphertext from the query string if we can
 83 |   var urlParams = new URLSearchParams(window.location.search);
 84 |   if (urlParams.has('c')) {
 85 |     document.querySelector("#encrypted").value  = urlParams.get('c')
 86 |   }
 87 | 
 88 |   const recoverButton = document.querySelector(".recover-button");
 89 |   recoverButton.addEventListener("click", () => {
 90 |     let shares = document.querySelector("#shares").value.split(/\n/);
 91 |     let ciphertext = document.querySelector("#encrypted").value;
 92 | 
 93 |     recoverSecretFromShares(ciphertext, shares)
 94 |       .then(function(secret) {
 95 |         // Reset results output
 96 |         let result = document.querySelector(".result")
 97 |         while (result.hasChildNodes()) {
 98 |           result.removeChild(result.firstChild);
 99 |         }
100 | 
101 |         result.insertAdjacentHTML('beforeend',
102 |             '<h2>Passphrase</h2><div><code>'+ secret + '</code></div>')
103 |       })
104 |   });
105 |   </script>
106 | </html>
107 | 


--------------------------------------------------------------------------------
/update.html:
--------------------------------------------------------------------------------
  1 | <!DOCTYPE html>
  2 | <html>
  3 |   <head>
  4 |     <meta charset="utf-8">
  5 |     <title>Update Encrypted Passphrase</title>
  6 |     <link rel="stylesheet" href="static/style.css">
  7 |     <script type="text/javascript" src="static/js/qrcode.min.js"></script>
  8 |   </head>
  9 |   <body>
 10 |     <main>
 11 |       <h1>Update Encrypted Passphrase</h1>
 12 |       <section class="box">
 13 |         <div class="row">
 14 |           <label for="secret">Passphrase to encrypt:</label>
 15 |           <input type="text" id="secret" name="secret" size="80" value="The owl hoots at midnight">
 16 |         </div>
 17 |         <div class="row">
 18 |           <label for="intermediate-key">Intermediate key:</label>
 19 |           <input type="text" id="intermediate-key" name="intermediate-key" size="80" value="">
 20 |         </div>
 21 |         <div class="row">
 22 |           <label for="recover-url">Recover URL:</label>
 23 |           <input type="text" id="recover-url" name="recover-url" size="80">
 24 |         </div>
 25 |         <input class="generate-button" type="button" value="Generate">
 26 |       </section>
 27 |       <section class="result">
 28 |       </section>
 29 |       <section class="exported-key">
 30 |       </section>
 31 |     </main>
 32 |   </body>
 33 |   <script type="text/javascript">
 34 |   function trimRight(s, charlist) {
 35 |     return s.replace(new RegExp("[" + charlist + "]+$"), "");
 36 |   }
 37 | 
 38 |   function convertArrayBufferToBase64(arrayBuffer) {
 39 |     var byteArray = new Uint8Array(arrayBuffer);
 40 |     var byteString = '';
 41 |     for(var i=0; i < byteArray.byteLength; i++) {
 42 |         byteString += String.fromCharCode(byteArray[i]);
 43 |     }
 44 |     var b64 = window.btoa(byteString);
 45 |     return trimRight(b64, "=");
 46 |   }
 47 | 
 48 |   function convertBase64ToArrayBuffer(base64) {
 49 |     var binary_string =  window.atob(base64);
 50 |     var len = binary_string.length;
 51 |     var bytes = new Uint8Array( len );
 52 |     for (var i = 0; i < len; i++)        {
 53 |         bytes[i] = binary_string.charCodeAt(i);
 54 |     }
 55 |     return bytes.buffer;
 56 |   }
 57 | 
 58 |   function convertArrayBufferToHex(buffer) {
 59 |     return Array.prototype.map.call(new Uint8Array(buffer),
 60 |       x => ('00' + x.toString(16)).slice(-2)).join('');
 61 |   }
 62 | 
 63 |   async function encryptPassphrase(config) {
 64 |    // Import the raw key into a CryptoKey
 65 |    let key = await window.crypto.subtle.importKey(
 66 |       "raw",
 67 |       convertBase64ToArrayBuffer(config.intermediateKey),
 68 |       "AES-GCM",
 69 |       true,
 70 |       ["encrypt", "decrypt"]
 71 |     );
 72 | 
 73 |     console.log("key", key);
 74 | 
 75 |     let encoder = new TextEncoder();
 76 |     let encoded = encoder.encode(config.secret);
 77 | 
 78 |     // Encrypt our secret with a new random IV
 79 |     let vector = crypto.getRandomValues(new Uint8Array(8));
 80 |     let encrypted = await window.crypto.subtle.encrypt(
 81 |       {name: "AES-GCM", iv: vector},
 82 |       key,
 83 |       encoded,
 84 |     );
 85 | 
 86 |     // Combine key length, ciphertext and iv into a single array
 87 |     var ciphertext = new Uint8Array(1 + encrypted.byteLength + vector.byteLength);
 88 |     ciphertext.set(new Uint8Array([encrypted.byteLength]), 0);
 89 |     ciphertext.set(new Uint8Array(encrypted), 1);
 90 |     ciphertext.set(new Uint8Array(vector), 1 + encrypted.byteLength);
 91 | 
 92 |     console.log("ciphertext", ciphertext);
 93 |     console.log("encrypted", new Uint8Array(encrypted));
 94 |     console.log("vector", new Uint8Array(vector));
 95 | 
 96 |     return {
 97 |       ciphertext: convertArrayBufferToBase64(ciphertext),
 98 |      };
 99 |   }
100 | 
101 |   function outputResults(config) {
102 |     // reset the results section
103 |     let result = document.querySelector(".result")
104 |     while (result.hasChildNodes()) {
105 |       result.removeChild(result.firstChild);
106 |     }
107 | 
108 |     url = config.recoverURL + "?c="+encodeURIComponent(config.ciphertext)
109 | 
110 |     // Insert the ciphertext output
111 |     result.insertAdjacentHTML('beforeend',
112 |       '<section><h2>Encrypted Passphrase (AES-256)</h2>' +
113 |       '<p>Copy this string and QR code elsewhere, print them out and store them somewhere safe.</p>'+
114 |       '<div class="ciphertext"><a href="'+url+'">'+config.ciphertext+'</a></div>'+
115 |       '<div class="qrcode"></div>'+
116 |       '</section>');
117 | 
118 |     // Generate a QR code
119 |     new QRCode(document.querySelector(".qrcode"), url);
120 |   }
121 | 
122 |   document.querySelector("#recover-url").value = window.location.href
123 |     .replace("update.html", "index.html")
124 | 
125 |   document
126 |     .querySelector(".generate-button")
127 |     .addEventListener("click", () => {
128 |       encryptPassphrase({
129 |         secret: document.querySelector("#secret").value,
130 |         intermediateKey: document.querySelector("#intermediate-key").value,
131 |       }).then((result) => {
132 |         outputResults({
133 |           ciphertext: result.ciphertext,
134 |           recoverURL: document.querySelector("#recover-url").value,
135 |         });
136 |       })
137 |     });
138 |   </script>
139 | </html>
140 | 


--------------------------------------------------------------------------------
/generate.html:
--------------------------------------------------------------------------------
  1 | <!DOCTYPE html>
  2 | <html>
  3 |   <head>
  4 |     <meta charset="utf-8">
  5 |     <title>Generate Passphrase Shares</title>
  6 |     <link rel="stylesheet" href="static/style.css">
  7 |     <script type="text/javascript" src="static/js/secrets.min.js"></script>
  8 |     <script type="text/javascript" src="static/js/qrcode.min.js"></script>
  9 |   </head>
 10 |   <body>
 11 |     <main>
 12 |       <h1>Generate Passphrase Shares</h1>
 13 |       <section class="generate box">
 14 |         <div class="row">
 15 |           <label for="secret">Passphrase to encrypt and split:</label>
 16 |           <input type="text" id="secret" name="secret" size="40" value="The owl hoots at midnight">
 17 |         </div>
 18 |         <div class="row">
 19 |           <label for="shares">Shares:</label>
 20 |           <input type="number" id="shares" name="shares" value="5">
 21 |         </div>
 22 |         <div class="row">
 23 |           <label for="threshold">Threshold:</label>
 24 |           <input type="number" id="threshold" name="threshold" value="3">
 25 |         </div>
 26 |         <div class="row">
 27 |             <label for="recover-url">Recover URL:</label>
 28 |             <input type="text" id="recover-url" name="recover-url" size="80">
 29 |           </div>
 30 |         <input class="generate-button" type="button" value="Generate">
 31 |       </section>
 32 |       <section class="result">
 33 |       </section>
 34 |       <section class="exported-key">
 35 |       </section>
 36 |     </main>
 37 |   </body>
 38 |   <script type="text/javascript">
 39 |   function trimRight(s, charlist) {
 40 |     return s.replace(new RegExp("[" + charlist + "]+$"), "");
 41 |   }
 42 | 
 43 |   function convertArrayBufferToBase64(arrayBuffer) {
 44 |     var byteArray = new Uint8Array(arrayBuffer);
 45 |     var byteString = '';
 46 |     for(var i=0; i < byteArray.byteLength; i++) {
 47 |         byteString += String.fromCharCode(byteArray[i]);
 48 |     }
 49 |     var b64 = window.btoa(byteString);
 50 |     return trimRight(b64, "=");
 51 |   }
 52 | 
 53 |   function convertArrayBufferToHex(buffer) {
 54 |     return Array.prototype.map.call(new Uint8Array(buffer),
 55 |       x => ('00' + x.toString(16)).slice(-2)).join('');
 56 |   }
 57 | 
 58 |   async function generateShares(config) {
 59 |     let encoder = new TextEncoder();
 60 |     let encoded = encoder.encode(config.secret);
 61 | 
 62 |     // Generate a random key to use to encrypt the secret
 63 |     let key = await window.crypto.subtle.generateKey(
 64 |       { name: "AES-GCM", length: 256 },
 65 |       true,
 66 |       ["encrypt", "decrypt"]
 67 |     );
 68 | 
 69 |     // Encrypt our secret with a random IV
 70 |     let vector = crypto.getRandomValues(new Uint8Array(8));
 71 |     let encrypted = await window.crypto.subtle.encrypt(
 72 |       {name: "AES-GCM", iv: vector},
 73 |       key,
 74 |       encoded,
 75 |     );
 76 | 
 77 |     const exported = await window.crypto.subtle.exportKey(
 78 |       "raw",
 79 |       key
 80 |     );
 81 | 
 82 |     keyHex = convertArrayBufferToHex(exported);
 83 |     console.log("secret length", keyHex.length);
 84 | 
 85 |     // Split secret into shares, padded to 128 bytes
 86 |     let shares = secrets.share(
 87 |       keyHex, config.shares, config.threshold, 128);
 88 | 
 89 |     // Combine key length, ciphertext and iv into a single array
 90 |     var ciphertext = new Uint8Array(1 + encrypted.byteLength + vector.byteLength);
 91 |     ciphertext.set(new Uint8Array([encrypted.byteLength]), 0);
 92 |     ciphertext.set(new Uint8Array(encrypted), 1);
 93 |     ciphertext.set(new Uint8Array(vector), 1 + encrypted.byteLength);
 94 | 
 95 |     console.log("ciphertext", ciphertext);
 96 |     console.log("encrypted", new Uint8Array(encrypted));
 97 |     console.log("vector", new Uint8Array(vector));
 98 | 
 99 |     return {
100 |       shares: shares,
101 |       ciphertext: convertArrayBufferToBase64(ciphertext),
102 |       key: convertArrayBufferToBase64(exported),
103 |      };
104 |   }
105 | 
106 |   function outputResults(config) {
107 |     // reset the results section
108 |     let result = document.querySelector(".result")
109 |     while (result.hasChildNodes()) {
110 |       result.removeChild(result.firstChild);
111 |     }
112 | 
113 |     url = config.recoverURL + "?c="+encodeURIComponent(config.ciphertext)
114 | 
115 |     // Insert the ciphertext output
116 |     result.insertAdjacentHTML('beforeend',
117 |       '<section><h2>Encrypted Passphrase (AES-256)</h2>' +
118 |       '<p>Copy this string and QR code elsewhere, print them out and store them somewhere safe.</p>'+
119 |       '<div class="ciphertext"><a href="'+url+'">'+config.ciphertext+'</a></div>'+
120 |       '<div class="qrcode"></div>'+
121 |       '</section>');
122 | 
123 |     // Generate a QR code
124 |     new QRCode(document.querySelector(".qrcode"), url);
125 | 
126 |     // Insert the shares placeholder
127 |     result.insertAdjacentHTML('beforeend',
128 |       '<section>'+
129 |       '<h2>Intermediate Key</h2>'+
130 |       '<p>Keep this key if you ever want to update the encrypted passphrase without redistributing shares.</p>'+
131 |       '<p>'+config.key+'</p>'+
132 |       '</section>');
133 | 
134 |     // Insert the shares placeholder
135 |     result.insertAdjacentHTML('beforeend',
136 |       '<section>'+
137 |       '<h2>Secret Shares</h2>'+
138 |       '<p>Any '+config.threshold+' of these in combination can decrypt the encrypted passphrase above. '+
139 |       'Give them to people you trust, along with where to find the above printed encrypted passphrase.</p>'+
140 |       '<ol></ol>'+
141 |       '</section>');
142 | 
143 |     // append results into ordered list
144 |     for (let i=0; i<config.shares.length; i++) {
145 |       document.querySelector(".result ol").insertAdjacentHTML('beforeend',
146 |         '<li class="share">'+config.shares[i]+'</li>');
147 |     }
148 |   }
149 | 
150 |   document.querySelector("#recover-url").value = window.location.href
151 |     .replace("generate.html", "index.html")
152 | 
153 |   document
154 |     .querySelector(".generate-button")
155 |     .addEventListener("click", () => {
156 |       let threshold = parseInt(document.querySelector("#threshold").value, 10);
157 |       let shares = parseInt(document.querySelector("#shares").value, 10);
158 | 
159 |       // Make magic happen
160 |       generateShares({
161 |         secret: document.querySelector("#secret").value,
162 |         shares: shares,
163 |         threshold: threshold,
164 |       }).then((result) => {
165 |         outputResults({
166 |           shares: result.shares,
167 |           ciphertext: result.ciphertext,
168 |           key: result.key,
169 |           recoverURL: document.querySelector("#recover-url").value,
170 |           threshold: threshold,
171 |         });
172 |       })
173 |     });
174 |   </script>
175 | </html>
176 | 


--------------------------------------------------------------------------------
/static/js/secrets.min.js:
--------------------------------------------------------------------------------
1 | /*! secrets.js-grempe 2015-03-02 */
2 | // @preserve author Alexander Stetsyuk
3 | // @preserve author Glenn Rempe <glenn@rempe.us>
4 | // @license MIT
5 | !function(a,b){"use strict";"function"==typeof define&&define.amd?define([],function(){return a.secrets=b()}):"object"==typeof exports?module.exports=b(require("crypto")):a.secrets=b(a.crypto)}(this,function(a){"use strict";function b(){p={bits:8,radix:16,minBits:3,maxBits:20,bytesPerChar:2,maxBytesPerChar:6,primitivePolynomials:[null,null,1,3,3,5,3,3,29,17,9,5,83,27,43,3,45,9,39,39,9,5,3,33,27,9,71,39,9,5,83]},q={},r=new Array(1024).join("0"),s=!0,t=10,u=["nodeCryptoRandomBytes","browserCryptoGetRandomValues","browserSJCLRandom","testRandom"]}function c(){return q&&q.rng&&"function"==typeof q.rng?!0:!1}function d(a,b){var c;if(0===b||1===b)return a;if(b&&b>1024)throw new Error("Padding must be multiples of no larger than 1024 bits.");return b=b||q.bits,a&&(c=a.length%b),c?(r+a).slice(-(b-c+a.length)):a}function e(a){var b,c,e="";for(c=a.length-1;c>=0;c--){if(b=parseInt(a[c],16),isNaN(b))throw new Error("Invalid hex character.");e=d(b.toString(2),4)+e}return e}function f(a){var b,c,e="";for(a=d(a,4),c=a.length;c>=4;c-=4){if(b=parseInt(a.slice(c-4,c),2),isNaN(b))throw new Error("Invalid binary character.");e=b.toString(16)+e}return e}function g(){return!a||"object"!=typeof a||"function"!=typeof a.getRandomValues&&"object"!=typeof a.getRandomValues||"function"!=typeof Uint32Array&&"object"!=typeof Uint32Array?!1:!0}function h(){return"object"==typeof a&&"function"==typeof a.randomBytes?!0:!1}function i(){return"object"==typeof sjcl&&"object"==typeof sjcl.random?!0:!1}function j(b){function c(a,b,c,e){var f,g,h=0,i="";for(b&&(f=b.length-1);f>h||i.length<a;)g=Math.abs(parseInt(b[h],c)),i+=d(g.toString(2),e),h++;return i=i.substr(-a),(i.match(/0/g)||[]).length===i.length?null:i}function e(b){var d,e,f,g,h=null;for(f=16,g=4,e=Math.ceil(b/8);null===h;)d=a.randomBytes(e),h=c(b,d.toString("hex"),f,g);return h}function f(b){var d,e,f,g=null;for(e=10,f=32,d=Math.ceil(b/32);null===g;)g=c(b,a.getRandomValues(new Uint32Array(d)),e,f);return g}function j(a){var b,d,e,f=null;if(d=10,e=32,b=Math.ceil(a/32),!sjcl.random.isReady(t))throw new Error("SJCL isn't finished seeding the RNG yet.");return f=c(a,sjcl.random.randomWords(b,t),d,e)}function k(a){var b,d,e,f,g,h=null;f=10,g=32,d=Math.ceil(a/32),e=123456789,b=new Uint32Array(d);for(var i=0;i<b.length;i++)b[i]=e;for(;null===h;)h=c(a,b,f,g);return h}return b&&"testRandom"===b?(q.typeCSPRNG=b,k):b&&"nodeCryptoRandomBytes"===b?(q.typeCSPRNG=b,e):b&&"browserCryptoGetRandomValues"===b?(q.typeCSPRNG=b,f):b&&"browserSJCLRandom"===b?(s=!1,q.typeCSPRNG=b,j):h()?(q.typeCSPRNG="nodeCryptoRandomBytes",e):g()?(q.typeCSPRNG="browserCryptoGetRandomValues",f):i()?(s=!1,q.typeCSPRNG="browserSJCLRandom",j):void 0}function k(a,b){var c,e=[];for(b&&(a=d(a,b)),c=a.length;c>q.bits;c-=q.bits)e.push(parseInt(a.slice(c-q.bits,c),2));return e.push(parseInt(a.slice(0,c),2)),e}function l(a,b){var c,d=q.logs[a],e=0;for(c=b.length-1;c>=0;c--)e=0!==e?q.exps[(d+q.logs[e])%q.maxShares]^b[c]:b[c];return e}function m(a,b,c){var d,e,f,g,h=0;for(f=0,d=b.length;d>f;f++)if(c[f]){for(e=q.logs[c[f]],g=0;d>g;g++)if(f!==g){if(a===b[g]){e=-1;break}e=(e+q.logs[a^b[g]]-q.logs[b[f]^b[g]]+q.maxShares)%q.maxShares}h=-1===e?h:h^q.exps[e]}return h}function n(a,b,c){var d,e,f=[],g=[a];for(d=1;c>d;d++)g[d]=parseInt(q.rng(q.bits),2);for(d=1,e=b+1;e>d;d++)f[d-1]={x:d,y:l(d,g)};return f}function o(a,b,c){var e,f,g,h,i;if(b=parseInt(b,q.radix),a=parseInt(a,10)||q.bits,e=a.toString(36).toUpperCase(),g=Math.pow(2,a)-1,h=g.toString(q.radix).length,f=d(b.toString(q.radix),h),"number"!=typeof b||b%1!==0||1>b||b>g)throw new Error("Share id must be an integer between 1 and "+g+", inclusive.");return i=e+f+c}var p,q,r,s,t,u,v={init:function(a,d){var e,f,h=[],j=[],k=1;if(b(),a&&("number"!=typeof a||a%1!==0||a<p.minBits||a>p.maxBits))throw new Error("Number of bits must be an integer between "+p.minBits+" and "+p.maxBits+", inclusive.");if(d&&-1===u.indexOf(d))throw new Error("Invalid RNG type argument : '"+d+"'");for(q.radix=p.radix,q.bits=a||p.bits,q.size=Math.pow(2,q.bits),q.maxShares=q.size-1,e=p.primitivePolynomials[q.bits],f=0;f<q.size;f++)j[f]=k,h[k]=f,k<<=1,k>=q.size&&(k^=e,k&=q.maxShares);if(q.logs=h,q.exps=j,d&&this.setRNG(d),c()||this.setRNG(),i()&&"browserSJCLRandom"===q.typeCSPRNG&&(sjcl.random=new sjcl.prng(t),g()&&sjcl.random.startCollectors(),this.seedRNG()),!(c()&&q.bits&&q.size&&q.maxShares&&q.logs&&q.exps&&q.logs.length===q.size&&q.exps.length===q.size))throw new Error("Initialization failed.")},seedRNG:function(b,c,d){var e,f;c=parseInt(c,10),d=d||"seedRNG",i()&&g()&&(e=new Uint32Array(256),f=a.getRandomValues(e),sjcl.random.addEntropy(f,2048,"cryptoGetRandomValues")),i()&&h()&&a.randomBytes(256,function(a,b){if(a)throw a;sjcl.random.addEntropy(b.toString("hex"),2048,"cryptoRandomBytes")}),i()&&b&&c&&d&&"browserSJCLRandom"===q.typeCSPRNG&&sjcl.random.addEntropy(b,c,d)},combine:function(a,b){var c,g,h,i,j,l,n,o="",p=[],r=[];for(b=b||0,c=0,h=a.length;h>c;c++){if(l=this.extractShareComponents(a[c]),void 0===j)j=l.bits;else if(l.bits!==j)throw new Error("Mismatched shares: Different bit settings.");if(q.bits!==j&&this.init(j),-1===p.indexOf(l.id))for(p.push(l.id),n=k(e(l.data)),g=0,i=n.length;i>g;g++)r[g]=r[g]||[],r[g][p.length-1]=n[g]}for(c=0,h=r.length;h>c;c++)o=d(m(b,p,r[c]).toString(2))+o;return f(b>=1?o:o.slice(o.indexOf("1")+1))},getConfig:function(){var a={};return a.radix=q.radix,a.bits=q.bits,a.maxShares=q.maxShares,a.hasCSPRNG=c(),a.typeCSPRNG=q.typeCSPRNG,a},extractShareComponents:function(a){var b,c,d,e,f,g,h={};if(b=parseInt(a.substr(0,1),36),b&&("number"!=typeof b||b%1!==0||b<p.minBits||b>p.maxBits))throw new Error("Invalid share : Number of bits must be an integer between "+p.minBits+" and "+p.maxBits+", inclusive.");if(e=Math.pow(2,b)-1,d=(Math.pow(2,b)-1).toString(q.radix).length,f="^([a-kA-K3-9]{1})([a-fA-F0-9]{"+d+"})([a-fA-F0-9]+)$",g=new RegExp(f).exec(a),g&&(c=parseInt(g[2],q.radix)),"number"!=typeof c||c%1!==0||1>c||c>e)throw new Error("Invalid share : Share id must be an integer between 1 and "+q.maxShares+", inclusive.");if(g&&g[3])return h.bits=b,h.id=c,h.data=g[3],h;throw new Error("The share data provided is invalid : "+a)},setRNG:function(a){var b="Random number generator is invalid ",c=" Supply an CSPRNG of the form function(bits){} that returns a string containing 'bits' number of random 1's and 0's.";if(a&&"string"==typeof a&&-1===u.indexOf(a))throw new Error("Invalid RNG type argument : '"+a+"'");if(a||(a=j()),a&&"string"==typeof a&&(a=j(a)),s){if(a&&"function"!=typeof a)throw new Error(b+"(Not a function)."+c);if(a&&"string"!=typeof a(q.bits))throw new Error(b+"(Output is not a string)."+c);if(a&&!parseInt(a(q.bits),2))throw new Error(b+"(Binary string output not parseable to an Integer)."+c);if(a&&a(q.bits).length>q.bits)throw new Error(b+"(Output length is greater than config.bits)."+c);if(a&&a(q.bits).length<q.bits)throw new Error(b+"(Output length is less than config.bits)."+c)}return q.rng=a,!0},str2hex:function(a,b){var c,e,f,g,h,i,j="";if("string"!=typeof a)throw new Error("Input must be a character string.");if(b||(b=p.bytesPerChar),"number"!=typeof b||1>b||b>p.maxBytesPerChar||b%1!==0)throw new Error("Bytes per character must be an integer between 1 and "+p.maxBytesPerChar+", inclusive.");for(c=2*b,e=Math.pow(16,c)-1,h=0,i=a.length;i>h;h++){if(g=a[h].charCodeAt(),isNaN(g))throw new Error("Invalid character: "+a[h]);if(g>e)throw f=Math.ceil(Math.log(g+1)/Math.log(256)),new Error("Invalid character code ("+g+"). Maximum allowable is 256^bytes-1 ("+e+"). To convert this character, use at least "+f+" bytes.");j=d(g.toString(16),c)+j}return j},hex2str:function(a,b){var c,e,f,g="";if("string"!=typeof a)throw new Error("Input must be a hexadecimal string.");if(b=b||p.bytesPerChar,"number"!=typeof b||b%1!==0||1>b||b>p.maxBytesPerChar)throw new Error("Bytes per character must be an integer between 1 and "+p.maxBytesPerChar+", inclusive.");for(c=2*b,a=d(a,c),e=0,f=a.length;f>e;e+=c)g=String.fromCharCode(parseInt(a.slice(e,e+c),16))+g;return g},random:function(a){if("number"!=typeof a||a%1!==0||2>a||a>65536)throw new Error("Number of bits must be an Integer between 1 and 65536.");if("browserSJCLRandom"===q.typeCSPRNG&&sjcl.random.isReady(t)<1)throw new Error("SJCL isn't finished seeding the RNG yet. Needs new entropy added or more mouse movement.");return f(q.rng(a))},share:function(a,b,c,g){var h,i,j,l,m,p=new Array(b),r=new Array(b);if(g=g||128,"string"!=typeof a)throw new Error("Secret must be a string.");if("number"!=typeof b||b%1!==0||2>b)throw new Error("Number of shares must be an integer between 2 and 2^bits-1 ("+q.maxShares+"), inclusive.");if(b>q.maxShares)throw h=Math.ceil(Math.log(b+1)/Math.LN2),new Error("Number of shares must be an integer between 2 and 2^bits-1 ("+q.maxShares+"), inclusive. To create "+b+" shares, use at least "+h+" bits.");if("number"!=typeof c||c%1!==0||2>c)throw new Error("Threshold number of shares must be an integer between 2 and 2^bits-1 ("+q.maxShares+"), inclusive.");if(c>q.maxShares)throw h=Math.ceil(Math.log(c+1)/Math.LN2),new Error("Threshold number of shares must be an integer between 2 and 2^bits-1 ("+q.maxShares+"), inclusive.  To use a threshold of "+c+", use at least "+h+" bits.");if(c>b)throw new Error("Threshold number of shares was "+c+" but must be less than or equal to the "+b+" shares specified as the total to generate.");if("number"!=typeof g||g%1!==0||0>g||g>1024)throw new Error("Zero-pad length must be an integer between 0 and 1024 inclusive.");for(a="1"+e(a),a=k(a,g),j=0,m=a.length;m>j;j++)for(i=n(a[j],b,c),l=0;b>l;l++)p[l]=p[l]||i[l].x.toString(q.radix),r[l]=d(i[l].y.toString(2))+(r[l]||"");for(j=0;b>j;j++)p[j]=o(q.bits,p[j],f(r[j]));return p},newShare:function(a,b){var c;if(a&&"string"==typeof a&&(a=parseInt(a,q.radix)),a&&b&&b[0])return c=this.extractShareComponents(b[0]),o(c.bits,a,this.combine(b,a));throw new Error("Invalid 'id' or 'shares' Array argument to newShare().")},_reset:b,_padLeft:d,_hex2bin:e,_bin2hex:f,_hasCryptoGetRandomValues:g,_hasCryptoRandomBytes:h,_hasSJCL:i,_getRNG:j,_isSetRNG:c,_splitNumStringToIntArray:k,_horner:l,_lagrange:m,_getShares:n,_constructPublicShareString:o};return v.init(),v});


--------------------------------------------------------------------------------
/static/js/qrcode.min.js:
--------------------------------------------------------------------------------
1 | var QRCode;!function(){function a(a){this.mode=c.MODE_8BIT_BYTE,this.data=a,this.parsedData=[];for(var b=[],d=0,e=this.data.length;e>d;d++){var f=this.data.charCodeAt(d);f>65536?(b[0]=240|(1835008&f)>>>18,b[1]=128|(258048&f)>>>12,b[2]=128|(4032&f)>>>6,b[3]=128|63&f):f>2048?(b[0]=224|(61440&f)>>>12,b[1]=128|(4032&f)>>>6,b[2]=128|63&f):f>128?(b[0]=192|(1984&f)>>>6,b[1]=128|63&f):b[0]=f,this.parsedData=this.parsedData.concat(b)}this.parsedData.length!=this.data.length&&(this.parsedData.unshift(191),this.parsedData.unshift(187),this.parsedData.unshift(239))}function b(a,b){this.typeNumber=a,this.errorCorrectLevel=b,this.modules=null,this.moduleCount=0,this.dataCache=null,this.dataList=[]}function i(a,b){if(void 0==a.length)throw new Error(a.length+"/"+b);for(var c=0;c<a.length&&0==a[c];)c++;this.num=new Array(a.length-c+b);for(var d=0;d<a.length-c;d++)this.num[d]=a[d+c]}function j(a,b){this.totalCount=a,this.dataCount=b}function k(){this.buffer=[],this.length=0}function m(){return"undefined"!=typeof CanvasRenderingContext2D}function n(){var a=!1,b=navigator.userAgent;return/android/i.test(b)&&(a=!0,aMat=b.toString().match(/android ([0-9]\.[0-9])/i),aMat&&aMat[1]&&(a=parseFloat(aMat[1]))),a}function r(a,b){for(var c=1,e=s(a),f=0,g=l.length;g>=f;f++){var h=0;switch(b){case d.L:h=l[f][0];break;case d.M:h=l[f][1];break;case d.Q:h=l[f][2];break;case d.H:h=l[f][3]}if(h>=e)break;c++}if(c>l.length)throw new Error("Too long data");return c}function s(a){var b=encodeURI(a).toString().replace(/\%[0-9a-fA-F]{2}/g,"a");return b.length+(b.length!=a?3:0)}a.prototype={getLength:function(){return this.parsedData.length},write:function(a){for(var b=0,c=this.parsedData.length;c>b;b++)a.put(this.parsedData[b],8)}},b.prototype={addData:function(b){var c=new a(b);this.dataList.push(c),this.dataCache=null},isDark:function(a,b){if(0>a||this.moduleCount<=a||0>b||this.moduleCount<=b)throw new Error(a+","+b);return this.modules[a][b]},getModuleCount:function(){return this.moduleCount},make:function(){this.makeImpl(!1,this.getBestMaskPattern())},makeImpl:function(a,c){this.moduleCount=4*this.typeNumber+17,this.modules=new Array(this.moduleCount);for(var d=0;d<this.moduleCount;d++){this.modules[d]=new Array(this.moduleCount);for(var e=0;e<this.moduleCount;e++)this.modules[d][e]=null}this.setupPositionProbePattern(0,0),this.setupPositionProbePattern(this.moduleCount-7,0),this.setupPositionProbePattern(0,this.moduleCount-7),this.setupPositionAdjustPattern(),this.setupTimingPattern(),this.setupTypeInfo(a,c),this.typeNumber>=7&&this.setupTypeNumber(a),null==this.dataCache&&(this.dataCache=b.createData(this.typeNumber,this.errorCorrectLevel,this.dataList)),this.mapData(this.dataCache,c)},setupPositionProbePattern:function(a,b){for(var c=-1;7>=c;c++)if(!(-1>=a+c||this.moduleCount<=a+c))for(var d=-1;7>=d;d++)-1>=b+d||this.moduleCount<=b+d||(this.modules[a+c][b+d]=c>=0&&6>=c&&(0==d||6==d)||d>=0&&6>=d&&(0==c||6==c)||c>=2&&4>=c&&d>=2&&4>=d?!0:!1)},getBestMaskPattern:function(){for(var a=0,b=0,c=0;8>c;c++){this.makeImpl(!0,c);var d=f.getLostPoint(this);(0==c||a>d)&&(a=d,b=c)}return b},createMovieClip:function(a,b,c){var d=a.createEmptyMovieClip(b,c),e=1;this.make();for(var f=0;f<this.modules.length;f++)for(var g=f*e,h=0;h<this.modules[f].length;h++){var i=h*e,j=this.modules[f][h];j&&(d.beginFill(0,100),d.moveTo(i,g),d.lineTo(i+e,g),d.lineTo(i+e,g+e),d.lineTo(i,g+e),d.endFill())}return d},setupTimingPattern:function(){for(var a=8;a<this.moduleCount-8;a++)null==this.modules[a][6]&&(this.modules[a][6]=0==a%2);for(var b=8;b<this.moduleCount-8;b++)null==this.modules[6][b]&&(this.modules[6][b]=0==b%2)},setupPositionAdjustPattern:function(){for(var a=f.getPatternPosition(this.typeNumber),b=0;b<a.length;b++)for(var c=0;c<a.length;c++){var d=a[b],e=a[c];if(null==this.modules[d][e])for(var g=-2;2>=g;g++)for(var h=-2;2>=h;h++)this.modules[d+g][e+h]=-2==g||2==g||-2==h||2==h||0==g&&0==h?!0:!1}},setupTypeNumber:function(a){for(var b=f.getBCHTypeNumber(this.typeNumber),c=0;18>c;c++){var d=!a&&1==(1&b>>c);this.modules[Math.floor(c/3)][c%3+this.moduleCount-8-3]=d}for(var c=0;18>c;c++){var d=!a&&1==(1&b>>c);this.modules[c%3+this.moduleCount-8-3][Math.floor(c/3)]=d}},setupTypeInfo:function(a,b){for(var c=this.errorCorrectLevel<<3|b,d=f.getBCHTypeInfo(c),e=0;15>e;e++){var g=!a&&1==(1&d>>e);6>e?this.modules[e][8]=g:8>e?this.modules[e+1][8]=g:this.modules[this.moduleCount-15+e][8]=g}for(var e=0;15>e;e++){var g=!a&&1==(1&d>>e);8>e?this.modules[8][this.moduleCount-e-1]=g:9>e?this.modules[8][15-e-1+1]=g:this.modules[8][15-e-1]=g}this.modules[this.moduleCount-8][8]=!a},mapData:function(a,b){for(var c=-1,d=this.moduleCount-1,e=7,g=0,h=this.moduleCount-1;h>0;h-=2)for(6==h&&h--;;){for(var i=0;2>i;i++)if(null==this.modules[d][h-i]){var j=!1;g<a.length&&(j=1==(1&a[g]>>>e));var k=f.getMask(b,d,h-i);k&&(j=!j),this.modules[d][h-i]=j,e--,-1==e&&(g++,e=7)}if(d+=c,0>d||this.moduleCount<=d){d-=c,c=-c;break}}}},b.PAD0=236,b.PAD1=17,b.createData=function(a,c,d){for(var e=j.getRSBlocks(a,c),g=new k,h=0;h<d.length;h++){var i=d[h];g.put(i.mode,4),g.put(i.getLength(),f.getLengthInBits(i.mode,a)),i.write(g)}for(var l=0,h=0;h<e.length;h++)l+=e[h].dataCount;if(g.getLengthInBits()>8*l)throw new Error("code length overflow. ("+g.getLengthInBits()+">"+8*l+")");for(g.getLengthInBits()+4<=8*l&&g.put(0,4);0!=g.getLengthInBits()%8;)g.putBit(!1);for(;;){if(g.getLengthInBits()>=8*l)break;if(g.put(b.PAD0,8),g.getLengthInBits()>=8*l)break;g.put(b.PAD1,8)}return b.createBytes(g,e)},b.createBytes=function(a,b){for(var c=0,d=0,e=0,g=new Array(b.length),h=new Array(b.length),j=0;j<b.length;j++){var k=b[j].dataCount,l=b[j].totalCount-k;d=Math.max(d,k),e=Math.max(e,l),g[j]=new Array(k);for(var m=0;m<g[j].length;m++)g[j][m]=255&a.buffer[m+c];c+=k;var n=f.getErrorCorrectPolynomial(l),o=new i(g[j],n.getLength()-1),p=o.mod(n);h[j]=new Array(n.getLength()-1);for(var m=0;m<h[j].length;m++){var q=m+p.getLength()-h[j].length;h[j][m]=q>=0?p.get(q):0}}for(var r=0,m=0;m<b.length;m++)r+=b[m].totalCount;for(var s=new Array(r),t=0,m=0;d>m;m++)for(var j=0;j<b.length;j++)m<g[j].length&&(s[t++]=g[j][m]);for(var m=0;e>m;m++)for(var j=0;j<b.length;j++)m<h[j].length&&(s[t++]=h[j][m]);return s};for(var c={MODE_NUMBER:1,MODE_ALPHA_NUM:2,MODE_8BIT_BYTE:4,MODE_KANJI:8},d={L:1,M:0,Q:3,H:2},e={PATTERN000:0,PATTERN001:1,PATTERN010:2,PATTERN011:3,PATTERN100:4,PATTERN101:5,PATTERN110:6,PATTERN111:7},f={PATTERN_POSITION_TABLE:[[],[6,18],[6,22],[6,26],[6,30],[6,34],[6,22,38],[6,24,42],[6,26,46],[6,28,50],[6,30,54],[6,32,58],[6,34,62],[6,26,46,66],[6,26,48,70],[6,26,50,74],[6,30,54,78],[6,30,56,82],[6,30,58,86],[6,34,62,90],[6,28,50,72,94],[6,26,50,74,98],[6,30,54,78,102],[6,28,54,80,106],[6,32,58,84,110],[6,30,58,86,114],[6,34,62,90,118],[6,26,50,74,98,122],[6,30,54,78,102,126],[6,26,52,78,104,130],[6,30,56,82,108,134],[6,34,60,86,112,138],[6,30,58,86,114,142],[6,34,62,90,118,146],[6,30,54,78,102,126,150],[6,24,50,76,102,128,154],[6,28,54,80,106,132,158],[6,32,58,84,110,136,162],[6,26,54,82,110,138,166],[6,30,58,86,114,142,170]],G15:1335,G18:7973,G15_MASK:21522,getBCHTypeInfo:function(a){for(var b=a<<10;f.getBCHDigit(b)-f.getBCHDigit(f.G15)>=0;)b^=f.G15<<f.getBCHDigit(b)-f.getBCHDigit(f.G15);return(a<<10|b)^f.G15_MASK},getBCHTypeNumber:function(a){for(var b=a<<12;f.getBCHDigit(b)-f.getBCHDigit(f.G18)>=0;)b^=f.G18<<f.getBCHDigit(b)-f.getBCHDigit(f.G18);return a<<12|b},getBCHDigit:function(a){for(var b=0;0!=a;)b++,a>>>=1;return b},getPatternPosition:function(a){return f.PATTERN_POSITION_TABLE[a-1]},getMask:function(a,b,c){switch(a){case e.PATTERN000:return 0==(b+c)%2;case e.PATTERN001:return 0==b%2;case e.PATTERN010:return 0==c%3;case e.PATTERN011:return 0==(b+c)%3;case e.PATTERN100:return 0==(Math.floor(b/2)+Math.floor(c/3))%2;case e.PATTERN101:return 0==b*c%2+b*c%3;case e.PATTERN110:return 0==(b*c%2+b*c%3)%2;case e.PATTERN111:return 0==(b*c%3+(b+c)%2)%2;default:throw new Error("bad maskPattern:"+a)}},getErrorCorrectPolynomial:function(a){for(var b=new i([1],0),c=0;a>c;c++)b=b.multiply(new i([1,g.gexp(c)],0));return b},getLengthInBits:function(a,b){if(b>=1&&10>b)switch(a){case c.MODE_NUMBER:return 10;case c.MODE_ALPHA_NUM:return 9;case c.MODE_8BIT_BYTE:return 8;case c.MODE_KANJI:return 8;default:throw new Error("mode:"+a)}else if(27>b)switch(a){case c.MODE_NUMBER:return 12;case c.MODE_ALPHA_NUM:return 11;case c.MODE_8BIT_BYTE:return 16;case c.MODE_KANJI:return 10;default:throw new Error("mode:"+a)}else{if(!(41>b))throw new Error("type:"+b);switch(a){case c.MODE_NUMBER:return 14;case c.MODE_ALPHA_NUM:return 13;case c.MODE_8BIT_BYTE:return 16;case c.MODE_KANJI:return 12;default:throw new Error("mode:"+a)}}},getLostPoint:function(a){for(var b=a.getModuleCount(),c=0,d=0;b>d;d++)for(var e=0;b>e;e++){for(var f=0,g=a.isDark(d,e),h=-1;1>=h;h++)if(!(0>d+h||d+h>=b))for(var i=-1;1>=i;i++)0>e+i||e+i>=b||(0!=h||0!=i)&&g==a.isDark(d+h,e+i)&&f++;f>5&&(c+=3+f-5)}for(var d=0;b-1>d;d++)for(var e=0;b-1>e;e++){var j=0;a.isDark(d,e)&&j++,a.isDark(d+1,e)&&j++,a.isDark(d,e+1)&&j++,a.isDark(d+1,e+1)&&j++,(0==j||4==j)&&(c+=3)}for(var d=0;b>d;d++)for(var e=0;b-6>e;e++)a.isDark(d,e)&&!a.isDark(d,e+1)&&a.isDark(d,e+2)&&a.isDark(d,e+3)&&a.isDark(d,e+4)&&!a.isDark(d,e+5)&&a.isDark(d,e+6)&&(c+=40);for(var e=0;b>e;e++)for(var d=0;b-6>d;d++)a.isDark(d,e)&&!a.isDark(d+1,e)&&a.isDark(d+2,e)&&a.isDark(d+3,e)&&a.isDark(d+4,e)&&!a.isDark(d+5,e)&&a.isDark(d+6,e)&&(c+=40);for(var k=0,e=0;b>e;e++)for(var d=0;b>d;d++)a.isDark(d,e)&&k++;var l=Math.abs(100*k/b/b-50)/5;return c+=10*l}},g={glog:function(a){if(1>a)throw new Error("glog("+a+")");return g.LOG_TABLE[a]},gexp:function(a){for(;0>a;)a+=255;for(;a>=256;)a-=255;return g.EXP_TABLE[a]},EXP_TABLE:new Array(256),LOG_TABLE:new Array(256)},h=0;8>h;h++)g.EXP_TABLE[h]=1<<h;for(var h=8;256>h;h++)g.EXP_TABLE[h]=g.EXP_TABLE[h-4]^g.EXP_TABLE[h-5]^g.EXP_TABLE[h-6]^g.EXP_TABLE[h-8];for(var h=0;255>h;h++)g.LOG_TABLE[g.EXP_TABLE[h]]=h;i.prototype={get:function(a){return this.num[a]},getLength:function(){return this.num.length},multiply:function(a){for(var b=new Array(this.getLength()+a.getLength()-1),c=0;c<this.getLength();c++)for(var d=0;d<a.getLength();d++)b[c+d]^=g.gexp(g.glog(this.get(c))+g.glog(a.get(d)));return new i(b,0)},mod:function(a){if(this.getLength()-a.getLength()<0)return this;for(var b=g.glog(this.get(0))-g.glog(a.get(0)),c=new Array(this.getLength()),d=0;d<this.getLength();d++)c[d]=this.get(d);for(var d=0;d<a.getLength();d++)c[d]^=g.gexp(g.glog(a.get(d))+b);return new i(c,0).mod(a)}},j.RS_BLOCK_TABLE=[[1,26,19],[1,26,16],[1,26,13],[1,26,9],[1,44,34],[1,44,28],[1,44,22],[1,44,16],[1,70,55],[1,70,44],[2,35,17],[2,35,13],[1,100,80],[2,50,32],[2,50,24],[4,25,9],[1,134,108],[2,67,43],[2,33,15,2,34,16],[2,33,11,2,34,12],[2,86,68],[4,43,27],[4,43,19],[4,43,15],[2,98,78],[4,49,31],[2,32,14,4,33,15],[4,39,13,1,40,14],[2,121,97],[2,60,38,2,61,39],[4,40,18,2,41,19],[4,40,14,2,41,15],[2,146,116],[3,58,36,2,59,37],[4,36,16,4,37,17],[4,36,12,4,37,13],[2,86,68,2,87,69],[4,69,43,1,70,44],[6,43,19,2,44,20],[6,43,15,2,44,16],[4,101,81],[1,80,50,4,81,51],[4,50,22,4,51,23],[3,36,12,8,37,13],[2,116,92,2,117,93],[6,58,36,2,59,37],[4,46,20,6,47,21],[7,42,14,4,43,15],[4,133,107],[8,59,37,1,60,38],[8,44,20,4,45,21],[12,33,11,4,34,12],[3,145,115,1,146,116],[4,64,40,5,65,41],[11,36,16,5,37,17],[11,36,12,5,37,13],[5,109,87,1,110,88],[5,65,41,5,66,42],[5,54,24,7,55,25],[11,36,12],[5,122,98,1,123,99],[7,73,45,3,74,46],[15,43,19,2,44,20],[3,45,15,13,46,16],[1,135,107,5,136,108],[10,74,46,1,75,47],[1,50,22,15,51,23],[2,42,14,17,43,15],[5,150,120,1,151,121],[9,69,43,4,70,44],[17,50,22,1,51,23],[2,42,14,19,43,15],[3,141,113,4,142,114],[3,70,44,11,71,45],[17,47,21,4,48,22],[9,39,13,16,40,14],[3,135,107,5,136,108],[3,67,41,13,68,42],[15,54,24,5,55,25],[15,43,15,10,44,16],[4,144,116,4,145,117],[17,68,42],[17,50,22,6,51,23],[19,46,16,6,47,17],[2,139,111,7,140,112],[17,74,46],[7,54,24,16,55,25],[34,37,13],[4,151,121,5,152,122],[4,75,47,14,76,48],[11,54,24,14,55,25],[16,45,15,14,46,16],[6,147,117,4,148,118],[6,73,45,14,74,46],[11,54,24,16,55,25],[30,46,16,2,47,17],[8,132,106,4,133,107],[8,75,47,13,76,48],[7,54,24,22,55,25],[22,45,15,13,46,16],[10,142,114,2,143,115],[19,74,46,4,75,47],[28,50,22,6,51,23],[33,46,16,4,47,17],[8,152,122,4,153,123],[22,73,45,3,74,46],[8,53,23,26,54,24],[12,45,15,28,46,16],[3,147,117,10,148,118],[3,73,45,23,74,46],[4,54,24,31,55,25],[11,45,15,31,46,16],[7,146,116,7,147,117],[21,73,45,7,74,46],[1,53,23,37,54,24],[19,45,15,26,46,16],[5,145,115,10,146,116],[19,75,47,10,76,48],[15,54,24,25,55,25],[23,45,15,25,46,16],[13,145,115,3,146,116],[2,74,46,29,75,47],[42,54,24,1,55,25],[23,45,15,28,46,16],[17,145,115],[10,74,46,23,75,47],[10,54,24,35,55,25],[19,45,15,35,46,16],[17,145,115,1,146,116],[14,74,46,21,75,47],[29,54,24,19,55,25],[11,45,15,46,46,16],[13,145,115,6,146,116],[14,74,46,23,75,47],[44,54,24,7,55,25],[59,46,16,1,47,17],[12,151,121,7,152,122],[12,75,47,26,76,48],[39,54,24,14,55,25],[22,45,15,41,46,16],[6,151,121,14,152,122],[6,75,47,34,76,48],[46,54,24,10,55,25],[2,45,15,64,46,16],[17,152,122,4,153,123],[29,74,46,14,75,47],[49,54,24,10,55,25],[24,45,15,46,46,16],[4,152,122,18,153,123],[13,74,46,32,75,47],[48,54,24,14,55,25],[42,45,15,32,46,16],[20,147,117,4,148,118],[40,75,47,7,76,48],[43,54,24,22,55,25],[10,45,15,67,46,16],[19,148,118,6,149,119],[18,75,47,31,76,48],[34,54,24,34,55,25],[20,45,15,61,46,16]],j.getRSBlocks=function(a,b){var c=j.getRsBlockTable(a,b);if(void 0==c)throw new Error("bad rs block @ typeNumber:"+a+"/errorCorrectLevel:"+b);for(var d=c.length/3,e=[],f=0;d>f;f++)for(var g=c[3*f+0],h=c[3*f+1],i=c[3*f+2],k=0;g>k;k++)e.push(new j(h,i));return e},j.getRsBlockTable=function(a,b){switch(b){case d.L:return j.RS_BLOCK_TABLE[4*(a-1)+0];case d.M:return j.RS_BLOCK_TABLE[4*(a-1)+1];case d.Q:return j.RS_BLOCK_TABLE[4*(a-1)+2];case d.H:return j.RS_BLOCK_TABLE[4*(a-1)+3];default:return void 0}},k.prototype={get:function(a){var b=Math.floor(a/8);return 1==(1&this.buffer[b]>>>7-a%8)},put:function(a,b){for(var c=0;b>c;c++)this.putBit(1==(1&a>>>b-c-1))},getLengthInBits:function(){return this.length},putBit:function(a){var b=Math.floor(this.length/8);this.buffer.length<=b&&this.buffer.push(0),a&&(this.buffer[b]|=128>>>this.length%8),this.length++}};var l=[[17,14,11,7],[32,26,20,14],[53,42,32,24],[78,62,46,34],[106,84,60,44],[134,106,74,58],[154,122,86,64],[192,152,108,84],[230,180,130,98],[271,213,151,119],[321,251,177,137],[367,287,203,155],[425,331,241,177],[458,362,258,194],[520,412,292,220],[586,450,322,250],[644,504,364,280],[718,560,394,310],[792,624,442,338],[858,666,482,382],[929,711,509,403],[1003,779,565,439],[1091,857,611,461],[1171,911,661,511],[1273,997,715,535],[1367,1059,751,593],[1465,1125,805,625],[1528,1190,868,658],[1628,1264,908,698],[1732,1370,982,742],[1840,1452,1030,790],[1952,1538,1112,842],[2068,1628,1168,898],[2188,1722,1228,958],[2303,1809,1283,983],[2431,1911,1351,1051],[2563,1989,1423,1093],[2699,2099,1499,1139],[2809,2213,1579,1219],[2953,2331,1663,1273]],o=function(){var a=function(a,b){this._el=a,this._htOption=b};return a.prototype.draw=function(a){function g(a,b){var c=document.createElementNS("http://www.w3.org/2000/svg",a);for(var d in b)b.hasOwnProperty(d)&&c.setAttribute(d,b[d]);return c}var b=this._htOption,c=this._el,d=a.getModuleCount();Math.floor(b.width/d),Math.floor(b.height/d),this.clear();var h=g("svg",{viewBox:"0 0 "+String(d)+" "+String(d),width:"100%",height:"100%",fill:b.colorLight});h.setAttributeNS("http://www.w3.org/2000/xmlns/","xmlns:xlink","http://www.w3.org/1999/xlink"),c.appendChild(h),h.appendChild(g("rect",{fill:b.colorDark,width:"1",height:"1",id:"template"}));for(var i=0;d>i;i++)for(var j=0;d>j;j++)if(a.isDark(i,j)){var k=g("use",{x:String(i),y:String(j)});k.setAttributeNS("http://www.w3.org/1999/xlink","href","#template"),h.appendChild(k)}},a.prototype.clear=function(){for(;this._el.hasChildNodes();)this._el.removeChild(this._el.lastChild)},a}(),p="svg"===document.documentElement.tagName.toLowerCase(),q=p?o:m()?function(){function a(){this._elImage.src=this._elCanvas.toDataURL("image/png"),this._elImage.style.display="block",this._elCanvas.style.display="none"}function d(a,b){var c=this;if(c._fFail=b,c._fSuccess=a,null===c._bSupportDataURI){var d=document.createElement("img"),e=function(){c._bSupportDataURI=!1,c._fFail&&_fFail.call(c)},f=function(){c._bSupportDataURI=!0,c._fSuccess&&c._fSuccess.call(c)};return d.onabort=e,d.onerror=e,d.onload=f,d.src="data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg==",void 0}c._bSupportDataURI===!0&&c._fSuccess?c._fSuccess.call(c):c._bSupportDataURI===!1&&c._fFail&&c._fFail.call(c)}if(this._android&&this._android<=2.1){var b=1/window.devicePixelRatio,c=CanvasRenderingContext2D.prototype.drawImage;CanvasRenderingContext2D.prototype.drawImage=function(a,d,e,f,g,h,i,j){if("nodeName"in a&&/img/i.test(a.nodeName))for(var l=arguments.length-1;l>=1;l--)arguments[l]=arguments[l]*b;else"undefined"==typeof j&&(arguments[1]*=b,arguments[2]*=b,arguments[3]*=b,arguments[4]*=b);c.apply(this,arguments)}}var e=function(a,b){this._bIsPainted=!1,this._android=n(),this._htOption=b,this._elCanvas=document.createElement("canvas"),this._elCanvas.width=b.width,this._elCanvas.height=b.height,a.appendChild(this._elCanvas),this._el=a,this._oContext=this._elCanvas.getContext("2d"),this._bIsPainted=!1,this._elImage=document.createElement("img"),this._elImage.style.display="none",this._el.appendChild(this._elImage),this._bSupportDataURI=null};return e.prototype.draw=function(a){var b=this._elImage,c=this._oContext,d=this._htOption,e=a.getModuleCount(),f=d.width/e,g=d.height/e,h=Math.round(f),i=Math.round(g);b.style.display="none",this.clear();for(var j=0;e>j;j++)for(var k=0;e>k;k++){var l=a.isDark(j,k),m=k*f,n=j*g;c.strokeStyle=l?d.colorDark:d.colorLight,c.lineWidth=1,c.fillStyle=l?d.colorDark:d.colorLight,c.fillRect(m,n,f,g),c.strokeRect(Math.floor(m)+.5,Math.floor(n)+.5,h,i),c.strokeRect(Math.ceil(m)-.5,Math.ceil(n)-.5,h,i)}this._bIsPainted=!0},e.prototype.makeImage=function(){this._bIsPainted&&d.call(this,a)},e.prototype.isPainted=function(){return this._bIsPainted},e.prototype.clear=function(){this._oContext.clearRect(0,0,this._elCanvas.width,this._elCanvas.height),this._bIsPainted=!1},e.prototype.round=function(a){return a?Math.floor(1e3*a)/1e3:a},e}():function(){var a=function(a,b){this._el=a,this._htOption=b};return a.prototype.draw=function(a){for(var b=this._htOption,c=this._el,d=a.getModuleCount(),e=Math.floor(b.width/d),f=Math.floor(b.height/d),g=['<table style="border:0;border-collapse:collapse;">'],h=0;d>h;h++){g.push("<tr>");for(var i=0;d>i;i++)g.push('<td style="border:0;border-collapse:collapse;padding:0;margin:0;width:'+e+"px;height:"+f+"px;background-color:"+(a.isDark(h,i)?b.colorDark:b.colorLight)+';"></td>');g.push("</tr>")}g.push("</table>"),c.innerHTML=g.join("");var j=c.childNodes[0],k=(b.width-j.offsetWidth)/2,l=(b.height-j.offsetHeight)/2;k>0&&l>0&&(j.style.margin=l+"px "+k+"px")},a.prototype.clear=function(){this._el.innerHTML=""},a}();QRCode=function(a,b){if(this._htOption={width:256,height:256,typeNumber:4,colorDark:"#000000",colorLight:"#ffffff",correctLevel:d.H},"string"==typeof b&&(b={text:b}),b)for(var c in b)this._htOption[c]=b[c];"string"==typeof a&&(a=document.getElementById(a)),this._android=n(),this._el=a,this._oQRCode=null,this._oDrawing=new q(this._el,this._htOption),this._htOption.text&&this.makeCode(this._htOption.text)},QRCode.prototype.makeCode=function(a){this._oQRCode=new b(r(a,this._htOption.correctLevel),this._htOption.correctLevel),this._oQRCode.addData(a),this._oQRCode.make(),this._el.title=a,this._oDrawing.draw(this._oQRCode),this.makeImage()},QRCode.prototype.makeImage=function(){"function"==typeof this._oDrawing.makeImage&&(!this._android||this._android>=3)&&this._oDrawing.makeImage()},QRCode.prototype.clear=function(){this._oDrawing.clear()},QRCode.CorrectLevel=d}();


--------------------------------------------------------------------------------