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desudesutalk · Dec 7, 2014 · bbbe9cf · bbbe9cf
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diff --git a/README.md b/README.md
@@ -2,3 +2,8 @@ ddt_dev
 =======
 
 DesuDesuTalk! next version and experiments
+
+Switching to ECC for profit and fun.
+
+**[Main repo](https://github.com/desudesutalk/desudesutalk/)**
+
diff --git a/index.html b/index.html
@@ -0,0 +1,71 @@
+<html>
+<head>
+	<title>NextGen</title>
+	<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+	<script language="JavaScript" type="text/javascript" src="src/libs/zepto.min.js"></script>
+	<script language="JavaScript" type="text/javascript" src="src/libs/pako.min.js"></script>
+
+	<script language="JavaScript" type="text/javascript" src="src/libs/jquery.identicon5.js"></script>	
+
+	<script language="JavaScript" type="text/javascript" src="src/libs/sjcl.js"></script>
+	<script language="JavaScript" type="text/javascript" src="src/libs/sjcl.ccm_hack.js"></script>
+
+	<script language="JavaScript" type="text/javascript" src="src/libs/elliptic.min.js"></script>
+
+	<script language="JavaScript" type="text/javascript" src="src/libs/utf8array.js"></script>
+
+	<script language="JavaScript" type="text/javascript" src="src/libs/base58.js"></script>
+
+	<script language="JavaScript" type="text/javascript" src="src/helpers.js"></script>
+	<script language="JavaScript" type="text/javascript" src="src/main.js"></script>
+</head>
+<body>
+
+
+<table style="width: 100%; text-align: center;" border=1>
+<tr><td rowspan=2><form id="encode">	
+	<p style="text-align: center;"><textarea id="in_message" rows=30 cols=60></textarea><br/>
+	<input type="submit" value="Encode"/>
+	<br><label>Hide Sender: <input name="hide_sender" type="checkbox" /></label>
+	<br><label>Hide Contacts: <input name="hide_contacts" type="checkbox" /></label>
+	</p>
+</form>
+</td>
+
+
+<td rowspan=2><form id="decode">	
+	<p style="text-align: center;"><textarea id="in_coded" rows=40 cols=65 style="font-size: x-small;"></textarea><br/>
+	<input type="submit" value="Decode"/></p>
+	<p id="contacts_output" style="font-size: x-small;"></p>
+</form>
+
+</td>
+
+
+
+
+<td><form id="login">
+	<p><label>Password: <input name="login_pwd" type="text" style="color: #ddd;"/></label><br/>
+	   <label>Salt: <input name="login_salt" type="text" style="color: #ddd;"/></label></p>
+	<p><input type="submit" value="Log in!"/></p>
+	<p id="login_info" style="font-size: x-small;"></p>
+</form>
+</td>
+</tr>
+
+
+
+<tr><td style="width: 600px;"><form id="contacts">
+	<p><label>Addres: <input name="contact_address" type="text" length=90 /></label><input type="submit" value="Add"/></p>
+	<textarea id="contacts_list" rows=6 cols=90 style="font-size: x-small;"></textarea>
+	<p><input type="button" value="Clear" id="clear_contacts"/></p>
+</form></td></tr>
+</table>
+
+
+
+
+
+
+</body>
+</html>
diff --git a/package.json b/package.json
@@ -0,0 +1,10 @@
+{
+  "name": "desudesutalk",
+  "version": "0.0.1",
+  "devDependencies": {
+    "grunt": "*",
+    "grunt-contrib-concat": "*",
+    "grunt-contrib-watch": "*",
+    "grunt-contrib-jshint": "*"
+  }
+}
diff --git a/src/helpers.js b/src/helpers.js
@@ -0,0 +1,131 @@
+var arrayBufferDataUri = function (raw) {
+    "use strict";
+
+    var base64 = '',
+        encodings = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/',
+        bytes = new Uint8Array(raw),
+        byteLength = bytes.byteLength,
+        byteRemainder = byteLength % 3,
+        mainLength = byteLength - byteRemainder,
+        a, b, c, d,
+        chunk;
+
+    // Main loop deals with bytes in chunks of 3
+    for (var i = 0; i < mainLength; i = i + 3) {
+        // Combine the three bytes into a single integer
+        chunk = (bytes[i] << 16) | (bytes[i + 1] << 8) | bytes[i + 2];
+
+        // Use bitmasks to extract 6-bit segments from the triplet
+        a = (chunk & 16515072) >> 18; // 16515072 = (2^6 - 1) << 18
+        b = (chunk & 258048) >> 12; // 258048   = (2^6 - 1) << 12
+        c = (chunk & 4032) >> 6; // 4032     = (2^6 - 1) << 6
+        d = chunk & 63; // 63       = 2^6 - 1
+        // Convert the raw binary segments to the appropriate ASCII encoding
+        base64 += encodings[a] + encodings[b] + encodings[c] + encodings[d];
+    }
+
+    // Deal with the remaining bytes and padding
+    if (byteRemainder == 1) {
+        chunk = bytes[mainLength];
+
+        a = (chunk & 252) >> 2; // 252 = (2^6 - 1) << 2
+        // Set the 4 least significant bits to zero
+        b = (chunk & 3) << 4; // 3   = 2^2 - 1
+        base64 += encodings[a] + encodings[b] + '==';
+    } else if (byteRemainder == 2) {
+        chunk = (bytes[mainLength] << 8) | bytes[mainLength + 1];
+
+        a = (chunk & 64512) >> 10; // 64512 = (2^6 - 1) << 10
+        b = (chunk & 1008) >> 4; // 1008  = (2^6 - 1) << 4
+        // Set the 2 least significant bits to zero
+        c = (chunk & 15) << 2; // 15    = 2^4 - 1
+        base64 += encodings[a] + encodings[b] + encodings[c] + '=';
+    }
+
+    return base64;
+};
+
+var decodeBase64 = function (s) {
+    var e={},i,b=0,c,x,l=0,a,r=[],w=String.fromCharCode,L=s.length;
+    var A="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
+    for(i=0;i<64;i++){e[A.charAt(i)]=i;}
+    for(x=0;x<L;x++){
+        c=e[s.charAt(x)];b=(b<<6)+c;l+=6;
+        while(l>=8){((a=(b>>>(l-=8))&0xff)||(x<(L-2)))&&(r.push(a));}
+    }
+    return r;
+};
+
+// Convert a hex string to a byte array
+var hexToBytes = function (hex, length) {
+    "use strict";
+
+    var str = hex.length % 2 ? "0" + hex : hex;
+
+    if(length){
+        str = (repeat("00", length) + str);
+        str = str.substr(str.length - length * 2);
+    }
+
+    for (var bytes = [], c = 0; c < str.length; c += 2)
+        bytes.push(parseInt(str.substr(c, 2), 16));
+    return bytes;
+};
+
+var padBytes = function (array, length) {
+    if (length === undefined) {
+        length = fieldSize;
+    }
+
+    for (var i = 0; array.length < length; ++i) {
+        array.unshift(0);
+    }
+
+    return array;
+};
+
+var shuffleArray = function (array) {
+    var counter = array.length, temp, index;
+
+    // While there are elements in the array
+    while (counter > 0) {
+        // Pick a random index
+        index = Math.floor(Math.random() * counter);
+
+        // Decrease counter by 1
+        counter--;
+
+        // And swap the last element with it
+        temp = array[counter];
+        array[counter] = array[index];
+        array[index] = temp;
+    }
+
+    return array;
+};
+
+var getSharedSecret = function (privateKey, publicKey) {
+    var sharedSecret = padBytes(privateKey.derive(ECcrypt.keyPair(publicKey).getPublic()).toArray());
+    return sjcl.codec.bytes.fromBits(sjcl.hash.sha256.hash(sjcl.codec.bytes.toBits(sharedSecret)));
+};
+
+var xorBytes = function (a, b) {
+    if (a.length != b.length) {
+        throw new Error("Длины не сходятся");
+    }
+
+    for (var i in a) {
+        a[i] ^= b[i];
+    }
+
+    return a;
+};
+
+var appendBuffer = function(buffer1, buffer2) {
+    "use strict";
+
+    var tmp = new Uint8Array(buffer1.byteLength + buffer2.byteLength);
+    tmp.set(buffer1, 0);
+    tmp.set(buffer2, buffer1.byteLength);
+    return tmp;
+};