1 files changed, 0 insertions, 102 deletions
diff --git a/node_modules/pbkdf2/lib/async.js b/node_modules/pbkdf2/lib/async.js
deleted file mode 100644
index 9ef67c3..0000000
--- a/node_modules/pbkdf2/lib/async.js
+++ /dev/null
@@ -1,102 +0,0 @@
-var Buffer = require('safe-buffer').Buffer
-
-var checkParameters = require('./precondition')
-var defaultEncoding = require('./default-encoding')
-var sync = require('./sync')
-var toBuffer = require('./to-buffer')
-
-var ZERO_BUF
-var subtle = global.crypto && global.crypto.subtle
-var toBrowser = {
-  sha: 'SHA-1',
-  'sha-1': 'SHA-1',
-  sha1: 'SHA-1',
-  sha256: 'SHA-256',
-  'sha-256': 'SHA-256',
-  sha384: 'SHA-384',
-  'sha-384': 'SHA-384',
-  'sha-512': 'SHA-512',
-  sha512: 'SHA-512'
-}
-var checks = []
-function checkNative (algo) {
-  if (global.process && !global.process.browser) {
-    return Promise.resolve(false)
-  }
-  if (!subtle || !subtle.importKey || !subtle.deriveBits) {
-    return Promise.resolve(false)
-  }
-  if (checks[algo] !== undefined) {
-    return checks[algo]
-  }
-  ZERO_BUF = ZERO_BUF || Buffer.alloc(8)
-  var prom = browserPbkdf2(ZERO_BUF, ZERO_BUF, 10, 128, algo)
-    .then(function () {
-      return true
-    }).catch(function () {
-      return false
-    })
-  checks[algo] = prom
-  return prom
-}
-
-function browserPbkdf2 (password, salt, iterations, length, algo) {
-  return subtle.importKey(
-    'raw', password, { name: 'PBKDF2' }, false, ['deriveBits']
-  ).then(function (key) {
-    return subtle.deriveBits({
-      name: 'PBKDF2',
-      salt: salt,
-      iterations: iterations,
-      hash: {
-        name: algo
-      }
-    }, key, length << 3)
-  }).then(function (res) {
-    return Buffer.from(res)
-  })
-}
-
-function resolvePromise (promise, callback) {
-  promise.then(function (out) {
-    process.nextTick(function () {
-      callback(null, out)
-    })
-  }, function (e) {
-    process.nextTick(function () {
-      callback(e)
-    })
-  })
-}
-module.exports = function (password, salt, iterations, keylen, digest, callback) {
-  if (typeof digest === 'function') {
-    callback = digest
-    digest = undefined
-  }
-
-  digest = digest || 'sha1'
-  var algo = toBrowser[digest.toLowerCase()]
-
-  if (!algo || typeof global.Promise !== 'function') {
-    return process.nextTick(function () {
-      var out
-      try {
-        out = sync(password, salt, iterations, keylen, digest)
-      } catch (e) {
-        return callback(e)
-      }
-      callback(null, out)
-    })
-  }
-
-  checkParameters(iterations, keylen)
-  password = toBuffer(password, defaultEncoding, 'Password')
-  salt = toBuffer(salt, defaultEncoding, 'Salt')
-  if (typeof callback !== 'function') throw new Error('No callback provided to pbkdf2')
-
-  resolvePromise(checkNative(algo).then(function (resp) {
-    if (resp) return browserPbkdf2(password, salt, iterations, keylen, algo)
-
-    return sync(password, salt, iterations, keylen, digest)
-  }), callback)
-}