1 files changed, 37 insertions, 0 deletions
diff --git a/public/js/seeder.js b/public/js/seeder.js
new file mode 100644
index 00000000..fa0bdfdd
--- /dev/null
+++ b/public/js/seeder.js
@@ -0,0 +1,37 @@
+seeder = {
+	// number of mouse movements to wait for
+	seedLimit: (function () {
+		var num = Crypto.util.randomBytes(12)[11];
+		return 200 + Math.floor(num);
+	})(),
+
+	seedCount: 0, // counter
+	lastInputTime: new Date().getTime(),
+	seedPoints: [],
+
+	// seed function exists to wait for mouse movement to add more entropy before generating an address
+	seed: function (evt) {
+		if (!evt) var evt = window.event;
+		var timeStamp = new Date().getTime();
+		// seeding is over now we generate and display the address
+		if (seeder.seedCount == seeder.seedLimit) {
+			seeder.seedCount++;
+			seeder.removePoints();
+      $('body').trigger('seeded')
+		}
+		// seed mouse position X and Y when mouse movements are greater than 40ms apart.
+		else if ((seeder.seedCount < seeder.seedLimit) && evt && (timeStamp - seeder.lastInputTime) > 10) {
+			SecureRandom.seedTime();
+			SecureRandom.seedInt16((evt.clientX * evt.clientY));
+			seeder.seedCount++;
+			seeder.lastInputTime = new Date().getTime();
+		}
+	},
+
+	removePoints: function () {
+		for (var i = 0; i < seeder.seedPoints.length; i++) {
+			document.body.removeChild(seeder.seedPoints[i]);
+		}
+		seeder.seedPoints = [];
+	}
+};