mirror of
https://github.com/Xahau/xahau.js.git
synced 2025-12-06 17:27:59 +00:00
3204998fcb
- native support for k256
- improved entropy by taking advantage of platform crypto
- remove unnecessary sjcl overrides from sjcl-secp256k1.js
- updated ripple-lib curve instantiations to use k256
- add curve override so c256 points to k256
16dde36fa2
88 lines
2.6 KiB
HTML
88 lines
2.6 KiB
HTML
<html>
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<head>
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<title>Entropy Generator Progress</title>
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<!-- ProgressBar source: http://stackoverflow.com/questions/7190898/progress-bar-with-html-and-css -->
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<style>
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#progressbar {
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background-color: black;
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border-radius: 13px; /* (height of inner div) / 2 + padding */
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padding: 3px;
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}
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#progressbar > div {
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background-color: orange;
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width: 0%; /* Adjust with JavaScript */
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height: 20px;
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border-radius: 10px;
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}
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</style>
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<script type="text/javascript" src="../sjcl.js">
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</script>
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<script type="text/javascript">
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var busy = 0;
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var collecting = 0;
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function showprogress () {
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var barwidth = document.getElementById ("progresswidth");
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var paranoia = parseInt (document.getElementById ("paranoialevel").value);
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var progress = 100 * sjcl.random.getProgress (paranoia);
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barwidth.style.width = progress+"%";
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if (!sjcl.random.isReady (paranoia)) {
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setTimeout ("showprogress()", 10, "JavaScript");
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} else {
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busy = 0;
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document.getElementById ("startbutton").style.disabled = 1;
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}
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}
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function startup () {
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if (collecting == 0) {
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sjcl.random.startCollectors ();
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collecting = 1;
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}
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if (busy == 0) {
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busy = 1;
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document.getElementById ("startbutton").style.disabled = 1;
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showprogress ();
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}
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}
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function consume (numbits) {
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var collector = document.getElementById ("collector");
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collector.value = "retrieving random data";
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var paranoia = document.getElementById ("paranoialevel").value;
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var numwords = Math.ceil (numbits / 32);
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var bits = sjcl.random.randomWords (numwords, paranoia);
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collector.value = '';
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for (var i=0; i<numwords; i++) {
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var hi = (bits [i] >> 16) & 0x0000ffff;
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var lo = bits [i] & 0x0000ffff;
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collector.value = collector.value + hi.toString (16) + lo.toString (16);
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}
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startup ();
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}
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</script>
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</head>
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<body>
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<h1>Entropy Generator Progress</h1>
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<p>Target: 192 bits, available at paranoia level 5.</p>
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<p>Corresponding paranoia level from [0,1..10]: <input type="text" value="5" id="paranoialevel"/> <input type=button onclick="startup ()" id="startbutton" value=" Start >> "> (the idea being that you can see the progress bar advance gently from empty/black to full/yellow after you press this)</p>
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<p><input type=button onclick="consume (192)" value=" Consume 192 bits >> "><input type=text id=collector size=50 value="" onkeypress="consume (192)"> (also consumes 192 bits with every keypress in the text field; use key repeat to consume swiftly)</p>
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<div id="progressbar">
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<div id="progresswidth"></div>
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</div>
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<p>Please move your mouse, play around and generally introduce entropy into your environment.</p>
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</body>
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</html> |