1. module pbkdf2
   1. function pbkdf2 (password, salt, iterations, keylen, digest, callback)
   2. function pbkdf2.pbkdf2Sync (password, salt, iterations, keylen, digest)
   3. object pbkdf2.browser
2. module pbkdf2.browser
   1. function pbkdf2.browser.pbkdf2 (password, salt, iterations, keylen, digest, callback)
   2. function pbkdf2.browser.pbkdf2Sync (password, salt, iterations, keylen, digest)

module pbkdf2

function pbkdf2 (password, salt, iterations, keylen, digest, callback)

• description and source-code

  pbkdf2 = function (password, salt, iterations, keylen, digest, callback) {
    if (typeof digest === 'function') {
      callback = digest;
      digest = undefined;
      pbkdf2DeprecationWarning();
    }
  
    if (typeof callback !== 'function')
      throw new Error('No callback provided to pbkdf2');
  
    return pbkdf2(password, salt, iterations, keylen, digest, callback);
  }

• example usage

  n/a

function pbkdf2.pbkdf2Sync (password, salt, iterations, keylen, digest)

• description and source-code

  pbkdf2Sync = function (password, salt, iterations, keylen, digest) {
    if (typeof digest === 'undefined') {
      digest = undefined;
      pbkdf2DeprecationWarning();
    }
    return pbkdf2(password, salt, iterations, keylen, digest);
  }

• example usage

  ...
      digest = undefined
    }
  
    checkParameters(iterations, keylen)
    if (typeof callback !== 'function') throw new Error('No callback provided to pbkdf2')
  
    setTimeout(function () {
      callback(null, exports.pbkdf2Sync(password, salt, iterations, keylen, digest))
    })
  }
  
  var defaultEncoding
  if (process.browser) {
    defaultEncoding = 'utf-8'
  } else {
  ...

module pbkdf2.browser

function pbkdf2.browser.pbkdf2 (password, salt, iterations, keylen, digest, callback)

• description and source-code

  pbkdf2 = function (password, salt, iterations, keylen, digest, callback) {
    if (typeof digest === 'function') {
      callback = digest
      digest = undefined
    }
  
    checkParameters(iterations, keylen)
    if (typeof callback !== 'function') throw new Error('No callback provided to pbkdf2')
  
    setTimeout(function () {
      callback(null, exports.pbkdf2Sync(password, salt, iterations, keylen, digest))
    })
  }

• example usage

  n/a

function pbkdf2.browser.pbkdf2Sync (password, salt, iterations, keylen, digest)

• description and source-code

  pbkdf2Sync = function (password, salt, iterations, keylen, digest) {
    if (!Buffer.isBuffer(password)) password = new Buffer(password, defaultEncoding)
    if (!Buffer.isBuffer(salt)) salt = new Buffer(salt, defaultEncoding)
  
    checkParameters(iterations, keylen)
  
    digest = digest || 'sha1'
  
    var hLen
    var l = 1
    var DK = new Buffer(keylen)
    var block1 = new Buffer(salt.length + 4)
    salt.copy(block1, 0, 0, salt.length)
  
    var r
    var T
  
    for (var i = 1; i <= l; i++) {
      block1.writeUInt32BE(i, salt.length)
      var U = createHmac(digest, password).update(block1).digest()
  
      if (!hLen) {
        hLen = U.length
        T = new Buffer(hLen)
        l = Math.ceil(keylen / hLen)
        r = keylen - (l - 1) * hLen
      }
  
      U.copy(T, 0, 0, hLen)
  
      for (var j = 1; j < iterations; j++) {
        U = createHmac(digest, password).update(U).digest()
        for (var k = 0; k < hLen; k++) T[k] ^= U[k]
      }
  
      var destPos = (i - 1) * hLen
      var len = (i === l ? r : hLen)
      T.copy(DK, destPos, 0, len)
    }
  
    return DK
  }

• example usage

  ...
      digest = undefined
    }
  
    checkParameters(iterations, keylen)
    if (typeof callback !== 'function') throw new Error('No callback provided to pbkdf2')
  
    setTimeout(function () {
      callback(null, exports.pbkdf2Sync(password, salt, iterations, keylen, digest))
    })
  }
  
  var defaultEncoding
  if (process.browser) {
    defaultEncoding = 'utf-8'
  } else {
  ...