<html>
<head>
<meta name="description" content="WebCrypto Test">
<meta charset="utf-8">
<title>WebCrypto Test</title>
<script src="https://cdn.rawgit.com/vibornoff/asmcrypto.js/release/asmcrypto.js"></script>
</head>
<body>
<button onclick="webcr()">WebCrypto</button>
<pre id="pre"></pre>
</body>
</html>
var data = new Uint8Array(32);
var key = new Uint8Array(32);
var transformRounds = 18000000 / 1;
var subtle = window.crypto ? window.crypto.subtle || window.crypto.webkitSubtle : null;
var MaxRoundsPreIteration = 10000;
function encrypt(data, key, rounds, callback) {
subtle.importKey('raw', key.buffer, {name: 'AES-CBC'}, false, ['encrypt']).then(function (encKey) {
var result = new Uint8Array(32);
var partsLeft = 2;
encryptBlock(data.subarray(0, 16), encKey, rounds, result, function(enc) {
for (var i = 0; i < 16; i++) {
result[i] = enc[i];
}
if (!--partsLeft) {
callback(result);
}
});
encryptBlock(data.subarray(16), encKey, rounds, result, function(enc) {
for (var i = 0; i < 16; i++) {
result[i + 16] = enc[i];
}
if (!--partsLeft) {
callback(result);
}
});
});
}
function encryptBlock(iv, encKey, rounds, result, complete, buffer) {
var actualRounds = Math.min(MaxRoundsPreIteration, rounds);
var leftRounds = rounds - actualRounds;
var dataLen = 16 * actualRounds;
var zeroData = buffer ? buffer.length === dataLen ? buffer : buffer.subarray(0, dataLen) : new Uint8Array(dataLen);
subtle.encrypt({name: 'AES-CBC', iv: iv}, encKey, zeroData).then(function (encData) {
var encDataArr = new Uint8Array(encData, (actualRounds - 1) * 16, 16);
if (leftRounds) {
encryptBlock(encDataArr, encKey, leftRounds, result, complete, buffer || zeroData);
} else {
complete(encDataArr);
}
});
}
function webcr() {
var now = performance.now();
encrypt(data, key, transformRounds, function(result) {
pre.innerHTML += 'WebCrypto ' + Math.round(performance.now() - now) + 'ms: ' + asmCrypto.bytes_to_hex(result) + '\n';
});
}
Output
You can jump to the latest bin by adding /latest
to your URL
Keyboard Shortcuts
Shortcut | Action |
---|---|
ctrl + [num] | Toggle nth panel |
ctrl + 0 | Close focused panel |
ctrl + enter | Re-render output. If console visible: run JS in console |
Ctrl + l | Clear the console |
ctrl + / | Toggle comment on selected lines |
ctrl + ] | Indents selected lines |
ctrl + [ | Unindents selected lines |
tab | Code complete & Emmet expand |
ctrl + shift + L | Beautify code in active panel |
ctrl + s | Save & lock current Bin from further changes |
ctrl + shift + s | Open the share options |
ctrl + y | Archive Bin |
Complete list of JS Bin shortcuts |
JS Bin URLs
URL | Action |
---|---|
/ | Show the full rendered output. This content will update in real time as it's updated from the /edit url. |
/edit | Edit the current bin |
/watch | Follow a Code Casting session |
/embed | Create an embeddable version of the bin |
/latest | Load the very latest bin (/latest goes in place of the revision) |
/[username]/last | View the last edited bin for this user |
/[username]/last/edit | Edit the last edited bin for this user |
/[username]/last/watch | Follow the Code Casting session for the latest bin for this user |
/quiet | Remove analytics and edit button from rendered output |
.js | Load only the JavaScript for a bin |
.css | Load only the CSS for a bin |
Except for username prefixed urls, the url may start with http://jsbin.com/abc and the url fragments can be added to the url to view it differently. |