1 files changed, 11 insertions, 9 deletions
diff --git a/node_modules/browserify-aes/streamCipher.js b/node_modules/browserify-aes/streamCipher.js
index a55c762d5..1877fa090 100644
--- a/node_modules/browserify-aes/streamCipher.js
+++ b/node_modules/browserify-aes/streamCipher.js
@@ -1,25 +1,27 @@
 var aes = require('./aes')
+var Buffer = require('safe-buffer').Buffer
 var Transform = require('cipher-base')
 var inherits = require('inherits')
 
-inherits(StreamCipher, Transform)
-module.exports = StreamCipher
 function StreamCipher (mode, key, iv, decrypt) {
-  if (!(this instanceof StreamCipher)) {
-    return new StreamCipher(mode, key, iv)
-  }
   Transform.call(this)
+
   this._cipher = new aes.AES(key)
-  this._prev = new Buffer(iv.length)
-  this._cache = new Buffer('')
-  this._secCache = new Buffer('')
+  this._prev = Buffer.from(iv)
+  this._cache = Buffer.allocUnsafe(0)
+  this._secCache = Buffer.allocUnsafe(0)
   this._decrypt = decrypt
-  iv.copy(this._prev)
   this._mode = mode
 }
+
+inherits(StreamCipher, Transform)
+
 StreamCipher.prototype._update = function (chunk) {
   return this._mode.encrypt(this, chunk, this._decrypt)
 }
+
 StreamCipher.prototype._final = function () {
   this._cipher.scrub()
 }
+
+module.exports = StreamCipher