10 files changed, 190 insertions, 0 deletions
diff --git a/node_modules/buffer-xor/.npmignore b/node_modules/buffer-xor/.npmignore
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--- /dev/null
+++ b/node_modules/buffer-xor/.npmignore
@@ -0,0 +1 @@
+node_modules
diff --git a/node_modules/buffer-xor/.travis.yml b/node_modules/buffer-xor/.travis.yml
new file mode 100644
index 000000000..d9f695b75
--- /dev/null
+++ b/node_modules/buffer-xor/.travis.yml
@@ -0,0 +1,9 @@
+language: node_js
+before_install:
+  - "npm install npm -g"
+node_js:
+  - "0.12"
+env:
+  - TEST_SUITE=standard
+  - TEST_SUITE=unit
+script: "npm run-script $TEST_SUITE"
diff --git a/node_modules/buffer-xor/LICENSE b/node_modules/buffer-xor/LICENSE
new file mode 100644
index 000000000..bba52181d
--- /dev/null
+++ b/node_modules/buffer-xor/LICENSE
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2015 Daniel Cousens
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/node_modules/buffer-xor/README.md b/node_modules/buffer-xor/README.md
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index 000000000..007f05828
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+++ b/node_modules/buffer-xor/README.md
@@ -0,0 +1,41 @@
+# buffer-xor
+
+[![TRAVIS](https://secure.travis-ci.org/crypto-browserify/buffer-xor.png)](http://travis-ci.org/crypto-browserify/buffer-xor)
+[![NPM](http://img.shields.io/npm/v/buffer-xor.svg)](https://www.npmjs.org/package/buffer-xor)
+
+[![js-standard-style](https://cdn.rawgit.com/feross/standard/master/badge.svg)](https://github.com/feross/standard)
+
+A simple module for bitwise-xor on buffers.
+
+
+## Examples
+
+``` javascript
+var xor = require("buffer-xor")
+var a = new Buffer('00ff0f', 'hex')
+var b = new Buffer('f0f0', 'hex')
+
+console.log(xor(a, b))
+// => <Buffer f0 0f>
+```
+
+
+Or for those seeking those few extra cycles, perform the operation in place:
+
+``` javascript
+var xorInplace = require("buffer-xor/inplace")
+var a = new Buffer('00ff0f', 'hex')
+var b = new Buffer('f0f0', 'hex')
+
+console.log(xorInplace(a, b))
+// => <Buffer f0 0f>
+// NOTE: xorInplace will return the shorter slice of its parameters
+
+// See that a has been mutated
+console.log(a)
+// => <Buffer f0 0f 0f>
+```
+
+
+## License [MIT](LICENSE)
+
diff --git a/node_modules/buffer-xor/index.js b/node_modules/buffer-xor/index.js
new file mode 100644
index 000000000..85ee6f631
--- /dev/null
+++ b/node_modules/buffer-xor/index.js
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+module.exports = function xor (a, b) {
+  var length = Math.min(a.length, b.length)
+  var buffer = new Buffer(length)
+
+  for (var i = 0; i < length; ++i) {
+    buffer[i] = a[i] ^ b[i]
+  }
+
+  return buffer
+}
diff --git a/node_modules/buffer-xor/inline.js b/node_modules/buffer-xor/inline.js
new file mode 100644
index 000000000..87975703d
--- /dev/null
+++ b/node_modules/buffer-xor/inline.js
@@ -0,0 +1 @@
+module.exports = require('./inplace')
diff --git a/node_modules/buffer-xor/inplace.js b/node_modules/buffer-xor/inplace.js
new file mode 100644
index 000000000..d71c172ce
--- /dev/null
+++ b/node_modules/buffer-xor/inplace.js
@@ -0,0 +1,9 @@
+module.exports = function xorInplace (a, b) {
+  var length = Math.min(a.length, b.length)
+
+  for (var i = 0; i < length; ++i) {
+    a[i] = a[i] ^ b[i]
+  }
+
+  return a.slice(0, length)
+}
diff --git a/node_modules/buffer-xor/package.json b/node_modules/buffer-xor/package.json
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index 000000000..5074b0221
--- /dev/null
+++ b/node_modules/buffer-xor/package.json
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+{
+  "name": "buffer-xor",
+  "version": "1.0.3",
+  "description": "A simple module for bitwise-xor on buffers",
+  "main": "index.js",
+  "scripts": {
+    "standard": "standard",
+    "test": "npm run-script unit",
+    "unit": "mocha"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/crypto-browserify/buffer-xor.git"
+  },
+  "bugs": {
+    "url": "https://github.com/crypto-browserify/buffer-xor/issues"
+  },
+  "homepage": "https://github.com/crypto-browserify/buffer-xor",
+  "keywords": [
+    "bits",
+    "bitwise",
+    "buffer",
+    "buffer-xor",
+    "crypto",
+    "inline",
+    "math",
+    "memory",
+    "performance",
+    "xor"
+  ],
+  "author": "Daniel Cousens",
+  "license": "MIT",
+  "devDependencies": {
+    "mocha": "*",
+    "standard": "*"
+  }
+}
diff --git a/node_modules/buffer-xor/test/fixtures.json b/node_modules/buffer-xor/test/fixtures.json
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index 000000000..6f3431efc
--- /dev/null
+++ b/node_modules/buffer-xor/test/fixtures.json
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+[
+  {
+    "a": "000f",
+    "b": "f0ff",
+    "expected": "f0f0"
+  },
+  {
+    "a": "000f0f",
+    "b": "f0ff",
+    "mutated": "f0f00f",
+    "expected": "f0f0"
+  },
+  {
+    "a": "000f",
+    "b": "f0ffff",
+    "expected": "f0f0"
+  },
+  {
+    "a": "000000",
+    "b": "000000",
+    "expected": "000000"
+  }
+]
diff --git a/node_modules/buffer-xor/test/index.js b/node_modules/buffer-xor/test/index.js
new file mode 100644
index 000000000..06eacab4f
--- /dev/null
+++ b/node_modules/buffer-xor/test/index.js
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+/* global describe, it */
+
+var assert = require('assert')
+var xor = require('../')
+var xorInplace = require('../inplace')
+var fixtures = require('./fixtures')
+
+describe('xor', function () {
+  fixtures.forEach(function (f) {
+    it('returns ' + f.expected + ' for ' + f.a + '/' + f.b, function () {
+      var a = new Buffer(f.a, 'hex')
+      var b = new Buffer(f.b, 'hex')
+      var actual = xor(a, b)
+
+      assert.equal(actual.toString('hex'), f.expected)
+
+      // a/b unchanged
+      assert.equal(a.toString('hex'), f.a)
+      assert.equal(b.toString('hex'), f.b)
+    })
+  })
+})
+
+describe('xor/inplace', function () {
+  fixtures.forEach(function (f) {
+    it('returns ' + f.expected + ' for ' + f.a + '/' + f.b, function () {
+      var a = new Buffer(f.a, 'hex')
+      var b = new Buffer(f.b, 'hex')
+      var actual = xorInplace(a, b)
+
+      assert.equal(actual.toString('hex'), f.expected)
+
+      // a mutated, b unchanged
+      assert.equal(a.toString('hex'), f.mutated || f.expected)
+      assert.equal(b.toString('hex'), f.b)
+    })
+  })
+})