major security update

server/node_modules/node-cryptojs-aes/lib/jsonformatter.js

@@ -0,0 +1,46 @@
+var CryptoJS = require('./core').CryptoJS;
+
+// create custom json serialization format
+var JsonFormatter = {
+	stringify: function (cipherParams) {
+		// create json object with ciphertext
+		var jsonObj = {
+			ct: cipherParams.ciphertext.toString(CryptoJS.enc.Base64)
+		};
+		
+		// optionally add iv and salt
+		if (cipherParams.iv) {
+			jsonObj.iv = cipherParams.iv.toString();
+		}
+		
+		if (cipherParams.salt) {
+			jsonObj.s = cipherParams.salt.toString();
+		}
+
+		// stringify json object
+		return JSON.stringify(jsonObj)
+	},
+
+	parse: function (jsonStr) {
+		// parse json string
+		var jsonObj = JSON.parse(jsonStr);
+		
+		// extract ciphertext from json object, and create cipher params object
+		var cipherParams = CryptoJS.lib.CipherParams.create({
+			ciphertext: CryptoJS.enc.Base64.parse(jsonObj.ct)
+		});
+		
+		// optionally extract iv and salt
+		if (jsonObj.iv) {
+			cipherParams.iv = CryptoJS.enc.Hex.parse(jsonObj.iv);
+		}
+            
+		if (jsonObj.s) {
+			cipherParams.salt = CryptoJS.enc.Hex.parse(jsonObj.s);
+		}
+		
+		return cipherParams;
+	}
+};
+
+exports.JsonFormatter = JsonFormatter;