fix: use Buffer.from instead of new Buffer

new Buffer is deprecated in node 10

Author: saintedlama

index.js

@@ -101,7 +101,7 @@ module.exports = function(schema, options) {
       })
       .then(salt => pbkdf2Promisified(password, salt, options))
       .then(hashRaw => {
-        this.set(options.hashField, new Buffer(hashRaw, 'binary').toString(options.encoding));
+        this.set(options.hashField, Buffer.from(hashRaw, 'binary').toString(options.encoding));
       })
       .then(() => this);
 

lib/authenticate.js

@@ -44,7 +44,7 @@ function authenticate(user, password, options, cb) {
       return cb(err);
     }
 
-    if (scmp(hashBuffer, new Buffer(user.get(options.hashField), options.encoding))) {
+    if (scmp(hashBuffer, Buffer.from(user.get(options.hashField), options.encoding))) {
       if (options.limitAttempts) {
         user.set(options.lastLoginField, Date.now());
         user.set(options.attemptsField, 0);