首次放到 git

utils/base64.js

@@ -0,0 +1,13 @@
+'use strict';
+
+var convert = require('./convert');
+
+module.exports = {
+    decode: function(textData) {
+        return convert.arrayify(new Buffer(textData, 'base64'));
+    },
+
+    encode: function(data) {
+        return (new Buffer(convert.arrayify(data))).toString('base64');
+    }
+};