Buffer: use alloc/allocUnsafe/from instead new

Author: fanatid

hash.js

@@ -2,7 +2,7 @@ var Buffer = require('safe-buffer').Buffer
 
 // prototype class for hash functions
 function Hash (blockSize, finalSize) {
-  this._block = new Buffer(blockSize)
+  this._block = Buffer.alloc(blockSize)
   this._finalSize = finalSize
   this._blockSize = blockSize
   this._len = 0
@@ -11,7 +11,7 @@ function Hash (blockSize, finalSize) {
 Hash.prototype.update = function (data, enc) {
   if (typeof data === 'string') {
     enc = enc || 'utf8'
-    data = new Buffer(data, enc)
+    data = Buffer.from(data, enc)
   }
 
   var block = this._block

sha.js

@@ -80,7 +80,7 @@ Sha.prototype._update = function (M) {
 }
 
 Sha.prototype._hash = function () {
-  var H = new Buffer(20)
+  var H = Buffer.allocUnsafe(20)
 
   H.writeInt32BE(this._a | 0, 0)
   H.writeInt32BE(this._b | 0, 4)

sha1.js

@@ -85,7 +85,7 @@ Sha1.prototype._update = function (M) {
 }
 
 Sha1.prototype._hash = function () {
-  var H = new Buffer(20)
+  var H = Buffer.allocUnsafe(20)
 
   H.writeInt32BE(this._a | 0, 0)
   H.writeInt32BE(this._b | 0, 4)

sha224.js

@@ -37,7 +37,7 @@ Sha224.prototype.init = function () {
 }
 
 Sha224.prototype._hash = function () {
-  var H = new Buffer(28)
+  var H = Buffer.allocUnsafe(28)
 
   H.writeInt32BE(this._a, 0)
   H.writeInt32BE(this._b, 4)

sha256.js

@@ -118,7 +118,7 @@ Sha256.prototype._update = function (M) {
 }
 
 Sha256.prototype._hash = function () {
-  var H = new Buffer(32)
+  var H = Buffer.allocUnsafe(32)
 
   H.writeInt32BE(this._a, 0)
   H.writeInt32BE(this._b, 4)

sha384.js

@@ -37,7 +37,7 @@ Sha384.prototype.init = function () {
 }
 
 Sha384.prototype._hash = function () {
-  var H = new Buffer(48)
+  var H = Buffer.allocUnsafe(48)
 
   function writeInt64BE (h, l, offset) {
     H.writeInt32BE(h, offset)

sha512.js

@@ -238,7 +238,7 @@ Sha512.prototype._update = function (M) {
 }
 
 Sha512.prototype._hash = function () {
-  var H = new Buffer(64)
+  var H = Buffer.allocUnsafe(64)
 
   function writeInt64BE (h, l, offset) {
     H.writeInt32BE(h, offset)