Adds compatibility with Node 4.0.0 up to 4.4.7. Buffer.from is available since 4.5

Author: luislobo

lib/encrypted-attr.js

@@ -4,6 +4,7 @@ const alg = 'aes-256-gcm'
 const crypto = require('crypto')
 const get = require('lodash').get
 const set = require('lodash').set
+const Buffer = require('safe-buffer').Buffer
 
 function EncryptedAttributes (attributes, options) {
   options = options || {}

package.json

@@ -15,7 +15,8 @@
     "orm"
   ],
   "dependencies": {
-    "lodash": "^4.17.4"
+    "lodash": "^4.17.4",
+    "safe-buffer": "^5.1.1"
   },
   "devDependencies": {
     "mocha": "^3.5.0",