From d819a1006794103058dc07353cccf8c495e14cff Mon Sep 17 00:00:00 2001
From: bip32jp <matsuringo.667@gmail.com>
Date: Wed, 31 Dec 2014 22:33:22 +0900
Subject: [PATCH] Capture mouse movements for entropy

---
 index.html    |  1 +
 js/coin.js    |  5 +++--
 js/coinbin.js | 26 ++++++++++++++++++++++++++
 3 files changed, 30 insertions(+), 2 deletions(-)

diff --git a/index.html b/index.html
index 61aa67a..c4f58bf 100644
--- a/index.html
+++ b/index.html
@@ -643,5 +643,6 @@
 	</div>
 	<!-- qrcode modal -->
 
+	<div class="hidden" id="entropybucket"></div>
 	</body>
 </html>
diff --git a/js/coin.js b/js/coin.js
index 2782227..fb58998 100644
--- a/js/coin.js
+++ b/js/coin.js
@@ -43,7 +43,7 @@
 		var x = window.location;
 		x += (window.screen.height * window.screen.width * window.screen.colorDepth);
 		x += coinjs.random(64);
-               	x += (window.screen.availHeight * window.screen.availWidth * window.screen.pixelDepth);
+		x += (window.screen.availHeight * window.screen.availWidth * window.screen.pixelDepth);
 		x += navigator.language;
 		x += window.history.length;
 		x += coinjs.random(64);
@@ -54,9 +54,10 @@
 		var dateObj = new Date();
 		x += dateObj.getTimezoneOffset();
 		x += coinjs.random(64);
+		x += $("#entropybucket").html();
 		x += x+''+x;
 		var r = x;
-		for(i=0;i<(x).length/16;i++){
+		for(i=0;i<(x).length/25;i++){
 			r = Crypto.SHA256(r.concat(x));
 		}
 		return r;
diff --git a/js/coinbin.js b/js/coinbin.js
index fa4718e..f39389e 100644
--- a/js/coinbin.js
+++ b/js/coinbin.js
@@ -813,4 +813,30 @@ $(document).ready(function() {
 	$("#newKeysBtn").click();
 
 	validateOutputAmount();
+
+	/* capture mouse movement to add entropy */
+	var IE = document.all?true:false // Boolean, is browser IE?
+	if (!IE) document.captureEvents(Event.MOUSEMOVE)
+	document.onmousemove = getMouseXY;
+	function getMouseXY(e) {
+		var tempX = 0;
+		var tempY = 0;
+		if (IE) { // If browser is IE
+		  tempX = event.clientX + document.body.scrollLeft;
+		  tempY = event.clientY + document.body.scrollTop;
+		} else {
+		  tempX = e.pageX;
+		  tempY = e.pageY;
+		};
+		if (tempX < 0){tempX = 0};
+		if (tempY < 0){tempY = 0};
+		var xEnt = Crypto.util.bytesToHex([tempX]);
+		var yEnt = Crypto.util.bytesToHex([tempY]);
+		var addEnt = xEnt.concat(yEnt);
+		if ($("#entropybucket").html().indexOf(xEnt) == -1 && $("#entropybucket").html().indexOf(yEnt) == -1) {
+			$("#entropybucket").html(addEnt + $("#entropybucket").html());
+		};
+		if ($("#entropybucket").html().length > 128) {$("#entropybucket").html($("#entropybucket").html().slice(0, 128))};
+		return true;
+	};
 });