FM / lib

/var/www/greso.tech/server/nsm/node_modules/node-forge/lib/

/var/www/greso.tech/server/nsm/node_modules/node-forge/lib

Name	Size	Mode	Actions
aes.js	39025	0644	edit dl rm
aesCipherSuites.js	9112	0644	edit dl rm
asn1-validator.js	2295	0644	edit dl rm
asn1.js	42831	0644	edit dl rm
baseN.js	5068	0644	edit dl rm
cipher.js	6668	0644	edit dl rm
cipherModes.js	28917	0644	edit dl rm
des.js	20445	0644	edit dl rm
ed25519.js	24941	0644	edit dl rm
forge.js	200	0644	edit dl rm
form.js	3880	0644	edit dl rm
hmac.js	3833	0644	edit dl rm
http.js	39070	0644	edit dl rm
index.all.js	366	0644	edit dl rm
index.js	640	0644	edit dl rm
jsbn.js	35188	0644	edit dl rm
kem.js	5217	0644	edit dl rm
log.js	9264	0644	edit dl rm
md.all.js	251	0644	edit dl rm
md.js	253	0644	edit dl rm
md5.js	7983	0644	edit dl rm
mgf.js	274	0644	edit dl rm
mgf1.js	1645	0644	edit dl rm
oids.js	6844	0644	edit dl rm
pbe.js	30999	0644	edit dl rm
pbkdf2.js	5809	0644	edit dl rm
pem.js	6693	0644	edit dl rm
pkcs1.js	8375	0644	edit dl rm
pkcs7.js	39869	0644	edit dl rm
pkcs7asn1.js	11484	0644	edit dl rm
pkcs12.js	33347	0644	edit dl rm
pki.js	2651	0644	edit dl rm
prime.js	8776	0644	edit dl rm
prime.worker.js	4804	0644	edit dl rm
prng.js	12326	0644	edit dl rm
pss.js	7854	0644	edit dl rm
random.js	5438	0644	edit dl rm
rc2.js	11949	0644	edit dl rm
rsa.js	60058	0644	edit dl rm
sha1.js	9089	0644	edit dl rm
sha256.js	9574	0644	edit dl rm
sha512.js	17133	0644	edit dl rm
socket.js	8329	0644	edit dl rm
ssh.js	7163	0644	edit dl rm
tls.js	132973	0644	edit dl rm
tlssocket.js	6967	0644	edit dl rm
util.js	69858	0644	edit dl rm
x509.js	101796	0644	edit dl rm
xhr.js	22116	0644	edit dl rm

Edit: /var/www/greso.tech/server/nsm/node_modules/node-forge/lib/des.js (20445B)

/**
 * DES (Data Encryption Standard) implementation.
 *
 * This implementation supports DES as well as 3DES-EDE in ECB and CBC mode.
 * It is based on the BSD-licensed implementation by Paul Tero:
 *
 * Paul Tero, July 2001
 * http://www.tero.co.uk/des/
 *
 * Optimised for performance with large blocks by
 * Michael Hayworth, November 2001
 * http://www.netdealing.com
 *
 * THIS SOFTWARE IS PROVIDED "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * @author Stefan Siegl
 * @author Dave Longley
 *
 * Copyright (c) 2012 Stefan Siegl <stesie@brokenpipe.de>
 * Copyright (c) 2012-2014 Digital Bazaar, Inc.
 */
var forge = require('./forge');
require('./cipher');
require('./cipherModes');
require('./util');

/* DES API */
module.exports = forge.des = forge.des || {};

/**
 * Deprecated. Instead, use:
 *
 * var cipher = forge.cipher.createCipher('DES-<mode>', key);
 * cipher.start({iv: iv});
 *
 * Creates an DES cipher object to encrypt data using the given symmetric key.
 * The output will be stored in the 'output' member of the returned cipher.
 *
 * The key and iv may be given as binary-encoded strings of bytes or
 * byte buffers.
 *
 * @param key the symmetric key to use (64 or 192 bits).
 * @param iv the initialization vector to use.
 * @param output the buffer to write to, null to create one.
 * @param mode the cipher mode to use (default: 'CBC' if IV is
 *          given, 'ECB' if null).
 *
 * @return the cipher.
 */
forge.des.startEncrypting = function(key, iv, output, mode) {
  var cipher = _createCipher({
    key: key,
    output: output,
    decrypt: false,
    mode: mode || (iv === null ? 'ECB' : 'CBC')
  });
  cipher.start(iv);
  return cipher;
};

/**
 * Deprecated. Instead, use:
 *
 * var cipher = forge.cipher.createCipher('DES-<mode>', key);
 *
 * Creates an DES cipher object to encrypt data using the given symmetric key.
 *
 * The key may be given as a binary-encoded string of bytes or a byte buffer.
 *
 * @param key the symmetric key to use (64 or 192 bits).
 * @param mode the cipher mode to use (default: 'CBC').
 *
 * @return the cipher.
 */
forge.des.createEncryptionCipher = function(key, mode) {
  return _createCipher({
    key: key,
    output: null,
    decrypt: false,
    mode: mode
  });
};

/**
 * Deprecated. Instead, use:
 *
 * var decipher = forge.cipher.createDecipher('DES-<mode>', key);
 * decipher.start({iv: iv});
 *
 * Creates an DES cipher object to decrypt data using the given symmetric key.
 * The output will be stored in the 'output' member of the returned cipher.
 *
 * The key and iv may be given as binary-encoded strings of bytes or
 * byte buffers.
 *
 * @param key the symmetric key to use (64 or 192 bits).
 * @param iv the initialization vector to use.
 * @param output the buffer to write to, null to create one.
 * @param mode the cipher mode to use (default: 'CBC' if IV is
 *          given, 'ECB' if null).
 *
 * @return the cipher.
 */
forge.des.startDecrypting = function(key, iv, output, mode) {
  var cipher = _createCipher({
    key: key,
    output: output,
    decrypt: true,
    mode: mode || (iv === null ? 'ECB' : 'CBC')
  });
  cipher.start(iv);
  return cipher;
};

/**
 * Deprecated. Instead, use:
 *
 * var decipher = forge.cipher.createDecipher('DES-<mode>', key);
 *
 * Creates an DES cipher object to decrypt data using the given symmetric key.
 *
 * The key may be given as a binary-encoded string of bytes or a byte buffer.
 *
 * @param key the symmetric key to use (64 or 192 bits).
 * @param mode the cipher mode to use (default: 'CBC').
 *
 * @return the cipher.
 */
forge.des.createDecryptionCipher = function(key, mode) {
  return _createCipher({
    key: key,
    output: null,
    decrypt: true,
    mode: mode
  });
};

/**
 * Creates a new DES cipher algorithm object.
 *
 * @param name the name of the algorithm.
 * @param mode the mode factory function.
 *
 * @return the DES algorithm object.
 */
forge.des.Algorithm = function(name, mode) {
  var self = this;
  self.name = name;
  self.mode = new mode({
    blockSize: 8,
    cipher: {
      encrypt: function(inBlock, outBlock) {
        return _updateBlock(self._keys, inBlock, outBlock, false);
      },
      decrypt: function(inBlock, outBlock) {
        return _updateBlock(self._keys, inBlock, outBlock, true);
      }
    }
  });
  self._init = false;
};

/**
 * Initializes this DES algorithm by expanding its key.
 *
 * @param options the options to use.
 *          key the key to use with this algorithm.
 *          decrypt true if the algorithm should be initialized for decryption,
 *            false for encryption.
 */
forge.des.Algorithm.prototype.initialize = function(options) {
  if(this._init) {
    return;
  }

var key = forge.util.createBuffer(options.key);
  if(this.name.indexOf('3DES') === 0) {
    if(key.length() !== 24) {
      throw new Error('Invalid Triple-DES key size: ' + key.length() * 8);
    }
  }

// do key expansion to 16 or 48 subkeys (single or triple DES)
  this._keys = _createKeys(key);
  this._init = true;
};

/** Register DES algorithms **/

registerAlgorithm('DES-ECB', forge.cipher.modes.ecb);
registerAlgorithm('DES-CBC', forge.cipher.modes.cbc);
registerAlgorithm('DES-CFB', forge.cipher.modes.cfb);
registerAlgorithm('DES-OFB', forge.cipher.modes.ofb);
registerAlgorithm('DES-CTR', forge.cipher.modes.ctr);

registerAlgorithm('3DES-ECB', forge.cipher.modes.ecb);
registerAlgorithm('3DES-CBC', forge.cipher.modes.cbc);
registerAlgorithm('3DES-CFB', forge.cipher.modes.cfb);
registerAlgorithm('3DES-OFB', forge.cipher.modes.ofb);
registerAlgorithm('3DES-CTR', forge.cipher.modes.ctr);

function registerAlgorithm(name, mode) {
  var factory = function() {
    return new forge.des.Algorithm(name, mode);
  };
  forge.cipher.registerAlgorithm(name, factory);
}

/** DES implementation **/

var spfunction1 = [0x1010400,0,0x10000,0x1010404,0x1010004,0x10404,0x4,0x10000,0x400,0x1010400,0x1010404,0x400,0x1000404,0x1010004,0x1000000,0x4,0x404,0x1000400,0x1000400,0x10400,0x10400,0x1010000,0x1010000,0x1000404,0x10004,0x1000004,0x1000004,0x10004,0,0x404,0x10404,0x1000000,0x10000,0x1010404,0x4,0x1010000,0x1010400,0x1000000,0x1000000,0x400,0x1010004,0x10000,0x10400,0x1000004,0x400,0x4,0x1000404,0x10404,0x1010404,0x10004,0x1010000,0x1000404,0x1000004,0x404,0x10404,0x1010400,0x404,0x1000400,0x1000400,0,0x10004,0x10400,0,0x1010004];
var spfunction2 = [-0x7fef7fe0,-0x7fff8000,0x8000,0x108020,0x100000,0x20,-0x7fefffe0,-0x7fff7fe0,-0x7fffffe0,-0x7fef7fe0,-0x7fef8000,-0x80000000,-0x7fff8000,0x100000,0x20,-0x7fefffe0,0x108000,0x100020,-0x7fff7fe0,0,-0x80000000,0x8000,0x108020,-0x7ff00000,0x100020,-0x7fffffe0,0,0x108000,0x8020,-0x7fef8000,-0x7ff00000,0x8020,0,0x108020,-0x7fefffe0,0x100000,-0x7fff7fe0,-0x7ff00000,-0x7fef8000,0x8000,-0x7ff00000,-0x7fff8000,0x20,-0x7fef7fe0,0x108020,0x20,0x8000,-0x80000000,0x8020,-0x7fef8000,0x100000,-0x7fffffe0,0x100020,-0x7fff7fe0,-0x7fffffe0,0x100020,0x108000,0,-0x7fff8000,0x8020,-0x80000000,-0x7fefffe0,-0x7fef7fe0,0x108000];
var spfunction3 = [0x208,0x8020200,0,0x8020008,0x8000200,0,0x20208,0x8000200,0x20008,0x8000008,0x8000008,0x20000,0x8020208,0x20008,0x8020000,0x208,0x8000000,0x8,0x8020200,0x200,0x20200,0x8020000,0x8020008,0x20208,0x8000208,0x20200,0x20000,0x8000208,0x8,0x8020208,0x200,0x8000000,0x8020200,0x8000000,0x20008,0x208,0x20000,0x8020200,0x8000200,0,0x200,0x20008,0x8020208,0x8000200,0x8000008,0x200,0,0x8020008,0x8000208,0x20000,0x8000000,0x8020208,0x8,0x20208,0x20200,0x8000008,0x8020000,0x8000208,0x208,0x8020000,0x20208,0x8,0x8020008,0x20200];
var spfunction4 = [0x802001,0x2081,0x2081,0x80,0x802080,0x800081,0x800001,0x2001,0,0x802000,0x802000,0x802081,0x81,0,0x800080,0x800001,0x1,0x2000,0x800000,0x802001,0x80,0x800000,0x2001,0x2080,0x800081,0x1,0x2080,0x800080,0x2000,0x802080,0x802081,0x81,0x800080,0x800001,0x802000,0x802081,0x81,0,0,0x802000,0x2080,0x800080,0x800081,0x1,0x802001,0x2081,0x2081,0x80,0x802081,0x81,0x1,0x2000,0x800001,0x2001,0x802080,0x800081,0x2001,0x2080,0x800000,0x802001,0x80,0x800000,0x2000,0x802080];
var spfunction5 = [0x100,0x2080100,0x2080000,0x42000100,0x80000,0x100,0x40000000,0x2080000,0x40080100,0x80000,0x2000100,0x40080100,0x42000100,0x42080000,0x80100,0x40000000,0x2000000,0x40080000,0x40080000,0,0x40000100,0x42080100,0x42080100,0x2000100,0x42080000,0x40000100,0,0x42000000,0x2080100,0x2000000,0x42000000,0x80100,0x80000,0x42000100,0x100,0x2000000,0x40000000,0x2080000,0x42000100,0x40080100,0x2000100,0x40000000,0x42080000,0x2080100,0x40080100,0x100,0x2000000,0x42080000,0x42080100,0x80100,0x42000000,0x42080100,0x2080000,0,0x40080000,0x42000000,0x80100,0x2000100,0x40000100,0x80000,0,0x40080000,0x2080100,0x40000100];
var spfunction6 = [0x20000010,0x20400000,0x4000,0x20404010,0x20400000,0x10,0x20404010,0x400000,0x20004000,0x404010,0x400000,0x20000010,0x400010,0x20004000,0x20000000,0x4010,0,0x400010,0x20004010,0x4000,0x404000,0x20004010,0x10,0x20400010,0x20400010,0,0x404010,0x20404000,0x4010,0x404000,0x20404000,0x20000000,0x20004000,0x10,0x20400010,0x404000,0x20404010,0x400000,0x4010,0x20000010,0x400000,0x20004000,0x20000000,0x4010,0x20000010,0x20404010,0x404000,0x20400000,0x404010,0x20404000,0,0x20400010,0x10,0x4000,0x20400000,0x404010,0x4000,0x400010,0x20004010,0,0x20404000,0x20000000,0x400010,0x20004010];
var spfunction7 = [0x200000,0x4200002,0x4000802,0,0x800,0x4000802,0x200802,0x4200800,0x4200802,0x200000,0,0x4000002,0x2,0x4000000,0x4200002,0x802,0x4000800,0x200802,0x200002,0x4000800,0x4000002,0x4200000,0x4200800,0x200002,0x4200000,0x800,0x802,0x4200802,0x200800,0x2,0x4000000,0x200800,0x4000000,0x200800,0x200000,0x4000802,0x4000802,0x4200002,0x4200002,0x2,0x200002,0x4000000,0x4000800,0x200000,0x4200800,0x802,0x200802,0x4200800,0x802,0x4000002,0x4200802,0x4200000,0x200800,0,0x2,0x4200802,0,0x200802,0x4200000,0x800,0x4000002,0x4000800,0x800,0x200002];
var spfunction8 = [0x10001040,0x1000,0x40000,0x10041040,0x10000000,0x10001040,0x40,0x10000000,0x40040,0x10040000,0x10041040,0x41000,0x10041000,0x41040,0x1000,0x40,0x10040000,0x10000040,0x10001000,0x1040,0x41000,0x40040,0x10040040,0x10041000,0x1040,0,0,0x10040040,0x10000040,0x10001000,0x41040,0x40000,0x41040,0x40000,0x10041000,0x1000,0x40,0x10040040,0x1000,0x41040,0x10001000,0x40,0x10000040,0x10040000,0x10040040,0x10000000,0x40000,0x10001040,0,0x10041040,0x40040,0x10000040,0x10040000,0x10001000,0x10001040,0,0x10041040,0x41000,0x41000,0x1040,0x1040,0x40040,0x10000000,0x10041000];

/**
 * Create necessary sub keys.
 *
 * @param key the 64-bit or 192-bit key.
 *
 * @return the expanded keys.
 */
function _createKeys(key) {
  var pc2bytes0  = [0,0x4,0x20000000,0x20000004,0x10000,0x10004,0x20010000,0x20010004,0x200,0x204,0x20000200,0x20000204,0x10200,0x10204,0x20010200,0x20010204],
      pc2bytes1  = [0,0x1,0x100000,0x100001,0x4000000,0x4000001,0x4100000,0x4100001,0x100,0x101,0x100100,0x100101,0x4000100,0x4000101,0x4100100,0x4100101],
      pc2bytes2  = [0,0x8,0x800,0x808,0x1000000,0x1000008,0x1000800,0x1000808,0,0x8,0x800,0x808,0x1000000,0x1000008,0x1000800,0x1000808],
      pc2bytes3  = [0,0x200000,0x8000000,0x8200000,0x2000,0x202000,0x8002000,0x8202000,0x20000,0x220000,0x8020000,0x8220000,0x22000,0x222000,0x8022000,0x8222000],
      pc2bytes4  = [0,0x40000,0x10,0x40010,0,0x40000,0x10,0x40010,0x1000,0x41000,0x1010,0x41010,0x1000,0x41000,0x1010,0x41010],
      pc2bytes5  = [0,0x400,0x20,0x420,0,0x400,0x20,0x420,0x2000000,0x2000400,0x2000020,0x2000420,0x2000000,0x2000400,0x2000020,0x2000420],
      pc2bytes6  = [0,0x10000000,0x80000,0x10080000,0x2,0x10000002,0x80002,0x10080002,0,0x10000000,0x80000,0x10080000,0x2,0x10000002,0x80002,0x10080002],
      pc2bytes7  = [0,0x10000,0x800,0x10800,0x20000000,0x20010000,0x20000800,0x20010800,0x20000,0x30000,0x20800,0x30800,0x20020000,0x20030000,0x20020800,0x20030800],
      pc2bytes8  = [0,0x40000,0,0x40000,0x2,0x40002,0x2,0x40002,0x2000000,0x2040000,0x2000000,0x2040000,0x2000002,0x2040002,0x2000002,0x2040002],
      pc2bytes9  = [0,0x10000000,0x8,0x10000008,0,0x10000000,0x8,0x10000008,0x400,0x10000400,0x408,0x10000408,0x400,0x10000400,0x408,0x10000408],
      pc2bytes10 = [0,0x20,0,0x20,0x100000,0x100020,0x100000,0x100020,0x2000,0x2020,0x2000,0x2020,0x102000,0x102020,0x102000,0x102020],
      pc2bytes11 = [0,0x1000000,0x200,0x1000200,0x200000,0x1200000,0x200200,0x1200200,0x4000000,0x5000000,0x4000200,0x5000200,0x4200000,0x5200000,0x4200200,0x5200200],
      pc2bytes12 = [0,0x1000,0x8000000,0x8001000,0x80000,0x81000,0x8080000,0x8081000,0x10,0x1010,0x8000010,0x8001010,0x80010,0x81010,0x8080010,0x8081010],
      pc2bytes13 = [0,0x4,0x100,0x104,0,0x4,0x100,0x104,0x1,0x5,0x101,0x105,0x1,0x5,0x101,0x105];

// how many iterations (1 for des, 3 for triple des)
  // changed by Paul 16/6/2007 to use Triple DES for 9+ byte keys
  var iterations = key.length() > 8 ? 3 : 1;

// stores the return keys
  var keys = [];

// now define the left shifts which need to be done
  var shifts = [0, 0, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0];

var n = 0, tmp;
  for(var j = 0; j < iterations; j++) {
    var left = key.getInt32();
    var right = key.getInt32();

tmp = ((left >>> 4) ^ right) & 0x0f0f0f0f;
    right ^= tmp;
    left ^= (tmp << 4);

tmp = ((right >>> -16) ^ left) & 0x0000ffff;
    left ^= tmp;
    right ^= (tmp << -16);

tmp = ((left >>> 2) ^ right) & 0x33333333;
    right ^= tmp;
    left ^= (tmp << 2);

tmp = ((right >>> -16) ^ left) & 0x0000ffff;
    left ^= tmp;
    right ^= (tmp << -16);

tmp = ((left >>> 1) ^ right) & 0x55555555;
    right ^= tmp;
    left ^= (tmp << 1);

tmp = ((right >>> 8) ^ left) & 0x00ff00ff;
    left ^= tmp;
    right ^= (tmp << 8);

tmp = ((left >>> 1) ^ right) & 0x55555555;
    right ^= tmp;
    left ^= (tmp << 1);

// right needs to be shifted and OR'd with last four bits of left
    tmp = (left << 8) | ((right >>> 20) & 0x000000f0);

// left needs to be put upside down
    left = ((right << 24) | ((right << 8) & 0xff0000) |
      ((right >>> 8) & 0xff00) | ((right >>> 24) & 0xf0));
    right = tmp;

// now go through and perform these shifts on the left and right keys
    for(var i = 0; i < shifts.length; ++i) {
      //shift the keys either one or two bits to the left
      if(shifts[i]) {
        left = (left << 2) | (left >>> 26);
        right = (right << 2) | (right >>> 26);
      } else {
        left = (left << 1) | (left >>> 27);
        right = (right << 1) | (right >>> 27);
      }
      left &= -0xf;
      right &= -0xf;

// now apply PC-2, in such a way that E is easier when encrypting or
      // decrypting this conversion will look like PC-2 except only the last 6
      // bits of each byte are used rather than 48 consecutive bits and the
      // order of lines will be according to how the S selection functions will
      // be applied: S2, S4, S6, S8, S1, S3, S5, S7
      var lefttmp = (
        pc2bytes0[left >>> 28] | pc2bytes1[(left >>> 24) & 0xf] |
        pc2bytes2[(left >>> 20) & 0xf] | pc2bytes3[(left >>> 16) & 0xf] |
        pc2bytes4[(left >>> 12) & 0xf] | pc2bytes5[(left >>> 8) & 0xf] |
        pc2bytes6[(left >>> 4) & 0xf]);
      var righttmp = (
        pc2bytes7[right >>> 28] | pc2bytes8[(right >>> 24) & 0xf] |
        pc2bytes9[(right >>> 20) & 0xf] | pc2bytes10[(right >>> 16) & 0xf] |
        pc2bytes11[(right >>> 12) & 0xf] | pc2bytes12[(right >>> 8) & 0xf] |
        pc2bytes13[(right >>> 4) & 0xf]);
      tmp = ((righttmp >>> 16) ^ lefttmp) & 0x0000ffff;
      keys[n++] = lefttmp ^ tmp;
      keys[n++] = righttmp ^ (tmp << 16);
    }
  }

return keys;
}

/**
 * Updates a single block (1 byte) using DES. The update will either
 * encrypt or decrypt the block.
 *
 * @param keys the expanded keys.
 * @param input the input block (an array of 32-bit words).
 * @param output the updated output block.
 * @param decrypt true to decrypt the block, false to encrypt it.
 */
function _updateBlock(keys, input, output, decrypt) {
  // set up loops for single or triple DES
  var iterations = keys.length === 32 ? 3 : 9;
  var looping;
  if(iterations === 3) {
    looping = decrypt ? [30, -2, -2] : [0, 32, 2];
  } else {
    looping = (decrypt ?
      [94, 62, -2, 32, 64, 2, 30, -2, -2] :
      [0, 32, 2, 62, 30, -2, 64, 96, 2]);
  }

var tmp;

var left = input[0];
  var right = input[1];

// first each 64 bit chunk of the message must be permuted according to IP
  tmp = ((left >>> 4) ^ right) & 0x0f0f0f0f;
  right ^= tmp;
  left ^= (tmp << 4);

tmp = ((left >>> 16) ^ right) & 0x0000ffff;
  right ^= tmp;
  left ^= (tmp << 16);

tmp = ((right >>> 2) ^ left) & 0x33333333;
  left ^= tmp;
  right ^= (tmp << 2);

tmp = ((right >>> 8) ^ left) & 0x00ff00ff;
  left ^= tmp;
  right ^= (tmp << 8);

tmp = ((left >>> 1) ^ right) & 0x55555555;
  right ^= tmp;
  left ^= (tmp << 1);

// rotate left 1 bit
  left = ((left << 1) | (left >>> 31));
  right = ((right << 1) | (right >>> 31));

for(var j = 0; j < iterations; j += 3) {
    var endloop = looping[j + 1];
    var loopinc = looping[j + 2];

// now go through and perform the encryption or decryption
    for(var i = looping[j]; i != endloop; i += loopinc) {
      var right1 = right ^ keys[i];
      var right2 = ((right >>> 4) | (right << 28)) ^ keys[i + 1];

// passing these bytes through the S selection functions
      tmp = left;
      left = right;
      right = tmp ^ (
        spfunction2[(right1 >>> 24) & 0x3f] |
        spfunction4[(right1 >>> 16) & 0x3f] |
        spfunction6[(right1 >>>  8) & 0x3f] |
        spfunction8[right1 & 0x3f] |
        spfunction1[(right2 >>> 24) & 0x3f] |
        spfunction3[(right2 >>> 16) & 0x3f] |
        spfunction5[(right2 >>>  8) & 0x3f] |
        spfunction7[right2 & 0x3f]);
    }
    // unreverse left and right
    tmp = left;
    left = right;
    right = tmp;
  }

// rotate right 1 bit
  left = ((left >>> 1) | (left << 31));
  right = ((right >>> 1) | (right << 31));

// now perform IP-1, which is IP in the opposite direction
  tmp = ((left >>> 1) ^ right) & 0x55555555;
  right ^= tmp;
  left ^= (tmp << 1);

tmp = ((right >>> 8) ^ left) & 0x00ff00ff;
  left ^= tmp;
  right ^= (tmp << 8);

tmp = ((right >>> 2) ^ left) & 0x33333333;
  left ^= tmp;
  right ^= (tmp << 2);

tmp = ((left >>> 16) ^ right) & 0x0000ffff;
  right ^= tmp;
  left ^= (tmp << 16);

tmp = ((left >>> 4) ^ right) & 0x0f0f0f0f;
  right ^= tmp;
  left ^= (tmp << 4);

output[0] = left;
  output[1] = right;
}

/**
 * Deprecated. Instead, use:
 *
 * forge.cipher.createCipher('DES-<mode>', key);
 * forge.cipher.createDecipher('DES-<mode>', key);
 *
 * Creates a deprecated DES cipher object. This object's mode will default to
 * CBC (cipher-block-chaining).
 *
 * The key may be given as a binary-encoded string of bytes or a byte buffer.
 *
 * @param options the options to use.
 *          key the symmetric key to use (64 or 192 bits).
 *          output the buffer to write to.
 *          decrypt true for decryption, false for encryption.
 *          mode the cipher mode to use (default: 'CBC').
 *
 * @return the cipher.
 */
function _createCipher(options) {
  options = options || {};
  var mode = (options.mode || 'CBC').toUpperCase();
  var algorithm = 'DES-' + mode;

var cipher;
  if(options.decrypt) {
    cipher = forge.cipher.createDecipher(algorithm, options.key);
  } else {
    cipher = forge.cipher.createCipher(algorithm, options.key);
  }

// backwards compatible start API
  var start = cipher.start;
  cipher.start = function(iv, options) {
    // backwards compatibility: support second arg as output buffer
    var output = null;
    if(options instanceof forge.util.ByteBuffer) {
      output = options;
      options = {};
    }
    options = options || {};
    options.output = output;
    options.iv = iv;
    start.call(cipher, options);
  };

return cipher;
}

cmd: