first commit

build/node_modules/buffer-xor/index.js

@@ -0,0 +1,10 @@
+module.exports = function xor (a, b) {
+  var length = Math.min(a.length, b.length)
+  var buffer = new Buffer(length)
+
+  for (var i = 0; i < length; ++i) {
+    buffer[i] = a[i] ^ b[i]
+  }
+
+  return buffer
+}