1 files changed, 73 insertions, 0 deletions
diff --git a/node_modules/browserify-cipher/browser.js b/node_modules/browserify-cipher/browser.js
new file mode 100644
index 000000000..e009f9311
--- /dev/null
+++ b/node_modules/browserify-cipher/browser.js
@@ -0,0 +1,73 @@
+var ebtk = require('evp_bytestokey')
+var aes = require('browserify-aes/browser')
+var DES = require('browserify-des')
+var desModes = require('browserify-des/modes')
+var aesModes = require('browserify-aes/modes')
+function createCipher (suite, password) {
+  var keyLen, ivLen
+  suite = suite.toLowerCase()
+  if (aesModes[suite]) {
+    keyLen = aesModes[suite].key
+    ivLen = aesModes[suite].iv
+  } else if (desModes[suite]) {
+    keyLen = desModes[suite].key * 8
+    ivLen = desModes[suite].iv
+  } else {
+    throw new TypeError('invalid suite type')
+  }
+  var keys = ebtk(password, false, keyLen, ivLen)
+  return createCipheriv(suite, keys.key, keys.iv)
+}
+function createDecipher (suite, password) {
+  var keyLen, ivLen
+  suite = suite.toLowerCase()
+  if (aesModes[suite]) {
+    keyLen = aesModes[suite].key
+    ivLen = aesModes[suite].iv
+  } else if (desModes[suite]) {
+    keyLen = desModes[suite].key * 8
+    ivLen = desModes[suite].iv
+  } else {
+    throw new TypeError('invalid suite type')
+  }
+  var keys = ebtk(password, false, keyLen, ivLen)
+  return createDecipheriv(suite, keys.key, keys.iv)
+}
+
+function createCipheriv (suite, key, iv) {
+  suite = suite.toLowerCase()
+  if (aesModes[suite]) {
+    return aes.createCipheriv(suite, key, iv)
+  } else if (desModes[suite]) {
+    return new DES({
+      key: key,
+      iv: iv,
+      mode: suite
+    })
+  } else {
+    throw new TypeError('invalid suite type')
+  }
+}
+function createDecipheriv (suite, key, iv) {
+  suite = suite.toLowerCase()
+  if (aesModes[suite]) {
+    return aes.createDecipheriv(suite, key, iv)
+  } else if (desModes[suite]) {
+    return new DES({
+      key: key,
+      iv: iv,
+      mode: suite,
+      decrypt: true
+    })
+  } else {
+    throw new TypeError('invalid suite type')
+  }
+}
+exports.createCipher = exports.Cipher = createCipher
+exports.createCipheriv = exports.Cipheriv = createCipheriv
+exports.createDecipher = exports.Decipher = createDecipher
+exports.createDecipheriv = exports.Decipheriv = createDecipheriv
+function getCiphers () {
+  return Object.keys(desModes).concat(aes.getCiphers())
+}
+exports.listCiphers = exports.getCiphers = getCiphers