1 files changed, 17 insertions, 9 deletions
diff --git a/node_modules/browserify-aes/modes/cfb1.js b/node_modules/browserify-aes/modes/cfb1.js
index 335542e20..0ed136637 100644
--- a/node_modules/browserify-aes/modes/cfb1.js
+++ b/node_modules/browserify-aes/modes/cfb1.js
@@ -1,3 +1,5 @@
+var Buffer = require('safe-buffer').Buffer
+
 function encryptByte (self, byteParam, decrypt) {
   var pad
   var i = -1
@@ -13,22 +15,28 @@ function encryptByte (self, byteParam, decrypt) {
   }
   return out
 }
-exports.encrypt = function (self, chunk, decrypt) {
-  var len = chunk.length
-  var out = new Buffer(len)
+
+function shiftIn (buffer, value) {
+  var len = buffer.length
   var i = -1
+  var out = Buffer.allocUnsafe(buffer.length)
+  buffer = Buffer.concat([buffer, Buffer.from([value])])
+
   while (++i < len) {
-    out[i] = encryptByte(self, chunk[i], decrypt)
+    out[i] = buffer[i] << 1 | buffer[i + 1] >> (7)
   }
+
   return out
 }
-function shiftIn (buffer, value) {
-  var len = buffer.length
+
+exports.encrypt = function (self, chunk, decrypt) {
+  var len = chunk.length
+  var out = Buffer.allocUnsafe(len)
   var i = -1
-  var out = new Buffer(buffer.length)
-  buffer = Buffer.concat([buffer, new Buffer([value])])
+
   while (++i < len) {
-    out[i] = buffer[i] << 1 | buffer[i + 1] >> (7)
+    out[i] = encryptByte(self, chunk[i], decrypt)
   }
+
   return out
 }