7 files changed, 150 insertions, 0 deletions
diff --git a/node_modules/browserify-aes/modes/cbc.js b/node_modules/browserify-aes/modes/cbc.js
new file mode 100644
index 000000000..b133e4069
--- /dev/null
+++ b/node_modules/browserify-aes/modes/cbc.js
@@ -0,0 +1,17 @@
+var xor = require('buffer-xor')
+
+exports.encrypt = function (self, block) {
+  var data = xor(block, self._prev)
+
+  self._prev = self._cipher.encryptBlock(data)
+  return self._prev
+}
+
+exports.decrypt = function (self, block) {
+  var pad = self._prev
+
+  self._prev = block
+  var out = self._cipher.decryptBlock(block)
+
+  return xor(out, pad)
+}
diff --git a/node_modules/browserify-aes/modes/cfb.js b/node_modules/browserify-aes/modes/cfb.js
new file mode 100644
index 000000000..0bfe4fab8
--- /dev/null
+++ b/node_modules/browserify-aes/modes/cfb.js
@@ -0,0 +1,31 @@
+var xor = require('buffer-xor')
+
+exports.encrypt = function (self, data, decrypt) {
+  var out = new Buffer('')
+  var len
+
+  while (data.length) {
+    if (self._cache.length === 0) {
+      self._cache = self._cipher.encryptBlock(self._prev)
+      self._prev = new Buffer('')
+    }
+
+    if (self._cache.length <= data.length) {
+      len = self._cache.length
+      out = Buffer.concat([out, encryptStart(self, data.slice(0, len), decrypt)])
+      data = data.slice(len)
+    } else {
+      out = Buffer.concat([out, encryptStart(self, data, decrypt)])
+      break
+    }
+  }
+
+  return out
+}
+function encryptStart (self, data, decrypt) {
+  var len = data.length
+  var out = xor(data, self._cache)
+  self._cache = self._cache.slice(len)
+  self._prev = Buffer.concat([self._prev, decrypt ? data : out])
+  return out
+}
diff --git a/node_modules/browserify-aes/modes/cfb1.js b/node_modules/browserify-aes/modes/cfb1.js
new file mode 100644
index 000000000..335542e20
--- /dev/null
+++ b/node_modules/browserify-aes/modes/cfb1.js
@@ -0,0 +1,34 @@
+function encryptByte (self, byteParam, decrypt) {
+  var pad
+  var i = -1
+  var len = 8
+  var out = 0
+  var bit, value
+  while (++i < len) {
+    pad = self._cipher.encryptBlock(self._prev)
+    bit = (byteParam & (1 << (7 - i))) ? 0x80 : 0
+    value = pad[0] ^ bit
+    out += ((value & 0x80) >> (i % 8))
+    self._prev = shiftIn(self._prev, decrypt ? bit : value)
+  }
+  return out
+}
+exports.encrypt = function (self, chunk, decrypt) {
+  var len = chunk.length
+  var out = new Buffer(len)
+  var i = -1
+  while (++i < len) {
+    out[i] = encryptByte(self, chunk[i], decrypt)
+  }
+  return out
+}
+function shiftIn (buffer, value) {
+  var len = buffer.length
+  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)
+  }
+  return out
+}
diff --git a/node_modules/browserify-aes/modes/cfb8.js b/node_modules/browserify-aes/modes/cfb8.js
new file mode 100644
index 000000000..c967a959f
--- /dev/null
+++ b/node_modules/browserify-aes/modes/cfb8.js
@@ -0,0 +1,15 @@
+function encryptByte (self, byteParam, decrypt) {
+  var pad = self._cipher.encryptBlock(self._prev)
+  var out = pad[0] ^ byteParam
+  self._prev = Buffer.concat([self._prev.slice(1), new Buffer([decrypt ? byteParam : out])])
+  return out
+}
+exports.encrypt = function (self, chunk, decrypt) {
+  var len = chunk.length
+  var out = new Buffer(len)
+  var i = -1
+  while (++i < len) {
+    out[i] = encryptByte(self, chunk[i], decrypt)
+  }
+  return out
+}
diff --git a/node_modules/browserify-aes/modes/ctr.js b/node_modules/browserify-aes/modes/ctr.js
new file mode 100644
index 000000000..0ef2278bf
--- /dev/null
+++ b/node_modules/browserify-aes/modes/ctr.js
@@ -0,0 +1,31 @@
+var xor = require('buffer-xor')
+
+function incr32 (iv) {
+  var len = iv.length
+  var item
+  while (len--) {
+    item = iv.readUInt8(len)
+    if (item === 255) {
+      iv.writeUInt8(0, len)
+    } else {
+      item++
+      iv.writeUInt8(item, len)
+      break
+    }
+  }
+}
+
+function getBlock (self) {
+  var out = self._cipher.encryptBlock(self._prev)
+  incr32(self._prev)
+  return out
+}
+
+exports.encrypt = function (self, chunk) {
+  while (self._cache.length < chunk.length) {
+    self._cache = Buffer.concat([self._cache, getBlock(self)])
+  }
+  var pad = self._cache.slice(0, chunk.length)
+  self._cache = self._cache.slice(chunk.length)
+  return xor(chunk, pad)
+}
diff --git a/node_modules/browserify-aes/modes/ecb.js b/node_modules/browserify-aes/modes/ecb.js
new file mode 100644
index 000000000..4dd97e7df
--- /dev/null
+++ b/node_modules/browserify-aes/modes/ecb.js
@@ -0,0 +1,6 @@
+exports.encrypt = function (self, block) {
+  return self._cipher.encryptBlock(block)
+}
+exports.decrypt = function (self, block) {
+  return self._cipher.decryptBlock(block)
+}
diff --git a/node_modules/browserify-aes/modes/ofb.js b/node_modules/browserify-aes/modes/ofb.js
new file mode 100644
index 000000000..bd875589f
--- /dev/null
+++ b/node_modules/browserify-aes/modes/ofb.js
@@ -0,0 +1,16 @@
+var xor = require('buffer-xor')
+
+function getBlock (self) {
+  self._prev = self._cipher.encryptBlock(self._prev)
+  return self._prev
+}
+
+exports.encrypt = function (self, chunk) {
+  while (self._cache.length < chunk.length) {
+    self._cache = Buffer.concat([self._cache, getBlock(self)])
+  }
+
+  var pad = self._cache.slice(0, chunk.length)
+  self._cache = self._cache.slice(chunk.length)
+  return xor(chunk, pad)
+}