"use strict"; Object.defineProperty(exports, "__esModule", { value: true }); exports.default = DES; /* * Ported from Flashlight VNC ActionScript implementation: * http://www.wizhelp.com/flashlight-vnc/ * * Full attribution follows: * * ------------------------------------------------------------------------- * * This DES class has been extracted from package Acme.Crypto for use in VNC. * The unnecessary odd parity code has been removed. * * These changes are: * Copyright (C) 1999 AT&T Laboratories Cambridge. All Rights Reserved. * * This software is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. * * DesCipher - the DES encryption method * * The meat of this code is by Dave Zimmerman , and is: * * Copyright (c) 1996 Widget Workshop, Inc. All Rights Reserved. * * Permission to use, copy, modify, and distribute this software * and its documentation for NON-COMMERCIAL or COMMERCIAL purposes and * without fee is hereby granted, provided that this copyright notice is kept * intact. * * WIDGET WORKSHOP MAKES NO REPRESENTATIONS OR WARRANTIES ABOUT THE SUITABILITY * OF THE SOFTWARE, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED * TO THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A * PARTICULAR PURPOSE, OR NON-INFRINGEMENT. WIDGET WORKSHOP SHALL NOT BE LIABLE * FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. * * THIS SOFTWARE IS NOT DESIGNED OR INTENDED FOR USE OR RESALE AS ON-LINE * CONTROL EQUIPMENT IN HAZARDOUS ENVIRONMENTS REQUIRING FAIL-SAFE * PERFORMANCE, SUCH AS IN THE OPERATION OF NUCLEAR FACILITIES, AIRCRAFT * NAVIGATION OR COMMUNICATION SYSTEMS, AIR TRAFFIC CONTROL, DIRECT LIFE * SUPPORT MACHINES, OR WEAPONS SYSTEMS, IN WHICH THE FAILURE OF THE * SOFTWARE COULD LEAD DIRECTLY TO DEATH, PERSONAL INJURY, OR SEVERE * PHYSICAL OR ENVIRONMENTAL DAMAGE ("HIGH RISK ACTIVITIES"). WIDGET WORKSHOP * SPECIFICALLY DISCLAIMS ANY EXPRESS OR IMPLIED WARRANTY OF FITNESS FOR * HIGH RISK ACTIVITIES. * * * The rest is: * * Copyright (C) 1996 by Jef Poskanzer . All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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. * * Visit the ACME Labs Java page for up-to-date versions of this and other * fine Java utilities: http://www.acme.com/java/ */ function DES(passwd) { "use strict"; // Tables, permutations, S-boxes, etc. var PC2 = [13, 16, 10, 23, 0, 4, 2, 27, 14, 5, 20, 9, 22, 18, 11, 3, 25, 7, 15, 6, 26, 19, 12, 1, 40, 51, 30, 36, 46, 54, 29, 39, 50, 44, 32, 47, 43, 48, 38, 55, 33, 52, 45, 41, 49, 35, 28, 31], totrot = [1, 2, 4, 6, 8, 10, 12, 14, 15, 17, 19, 21, 23, 25, 27, 28], z = 0x0, a, b, c, d, e, f, SP1, SP2, SP3, SP4, SP5, SP6, SP7, SP8, keys = []; a = 1 << 16;b = 1 << 24;c = a | b;d = 1 << 2;e = 1 << 10;f = d | e; SP1 = [c | e, z | z, a | z, c | f, c | d, a | f, z | d, a | z, z | e, c | e, c | f, z | e, b | f, c | d, b | z, z | d, z | f, b | e, b | e, a | e, a | e, c | z, c | z, b | f, a | d, b | d, b | d, a | d, z | z, z | f, a | f, b | z, a | z, c | f, z | d, c | z, c | e, b | z, b | z, z | e, c | d, a | z, a | e, b | d, z | e, z | d, b | f, a | f, c | f, a | d, c | z, b | f, b | d, z | f, a | f, c | e, z | f, b | e, b | e, z | z, a | d, a | e, z | z, c | d]; a = 1 << 20;b = 1 << 31;c = a | b;d = 1 << 5;e = 1 << 15;f = d | e; SP2 = [c | f, b | e, z | e, a | f, a | z, z | d, c | d, b | f, b | d, c | f, c | e, b | z, b | e, a | z, z | d, c | d, a | e, a | d, b | f, z | z, b | z, z | e, a | f, c | z, a | d, b | d, z | z, a | e, z | f, c | e, c | z, z | f, z | z, a | f, c | d, a | z, b | f, c | z, c | e, z | e, c | z, b | e, z | d, c | f, a | f, z | d, z | e, b | z, z | f, c | e, a | z, b | d, a | d, b | f, b | d, a | d, a | e, z | z, b | e, z | f, b | z, c | d, c | f, a | e]; a = 1 << 17;b = 1 << 27;c = a | b;d = 1 << 3;e = 1 << 9;f = d | e; SP3 = [z | f, c | e, z | z, c | d, b | e, z | z, a | f, b | e, a | d, b | d, b | d, a | z, c | f, a | d, c | z, z | f, b | z, z | d, c | e, z | e, a | e, c | z, c | d, a | f, b | f, a | e, a | z, b | f, z | d, c | f, z | e, b | z, c | e, b | z, a | d, z | f, a | z, c | e, b | e, z | z, z | e, a | d, c | f, b | e, b | d, z | e, z | z, c | d, b | f, a | z, b | z, c | f, z | d, a | f, a | e, b | d, c | z, b | f, z | f, c | z, a | f, z | d, c | d, a | e]; a = 1 << 13;b = 1 << 23;c = a | b;d = 1 << 0;e = 1 << 7;f = d | e; SP4 = [c | d, a | f, a | f, z | e, c | e, b | f, b | d, a | d, z | z, c | z, c | z, c | f, z | f, z | z, b | e, b | d, z | d, a | z, b | z, c | d, z | e, b | z, a | d, a | e, b | f, z | d, a | e, b | e, a | z, c | e, c | f, z | f, b | e, b | d, c | z, c | f, z | f, z | z, z | z, c | z, a | e, b | e, b | f, z | d, c | d, a | f, a | f, z | e, c | f, z | f, z | d, a | z, b | d, a | d, c | e, b | f, a | d, a | e, b | z, c | d, z | e, b | z, a | z, c | e]; a = 1 << 25;b = 1 << 30;c = a | b;d = 1 << 8;e = 1 << 19;f = d | e; SP5 = [z | d, a | f, a | e, c | d, z | e, z | d, b | z, a | e, b | f, z | e, a | d, b | f, c | d, c | e, z | f, b | z, a | z, b | e, b | e, z | z, b | d, c | f, c | f, a | d, c | e, b | d, z | z, c | z, a | f, a | z, c | z, z | f, z | e, c | d, z | d, a | z, b | z, a | e, c | d, b | f, a | d, b | z, c | e, a | f, b | f, z | d, a | z, c | e, c | f, z | f, c | z, c | f, a | e, z | z, b | e, c | z, z | f, a | d, b | d, z | e, z | z, b | e, a | f, b | d]; a = 1 << 22;b = 1 << 29;c = a | b;d = 1 << 4;e = 1 << 14;f = d | e; SP6 = [b | d, c | z, z | e, c | f, c | z, z | d, c | f, a | z, b | e, a | f, a | z, b | d, a | d, b | e, b | z, z | f, z | z, a | d, b | f, z | e, a | e, b | f, z | d, c | d, c | d, z | z, a | f, c | e, z | f, a | e, c | e, b | z, b | e, z | d, c | d, a | e, c | f, a | z, z | f, b | d, a | z, b | e, b | z, z | f, b | d, c | f, a | e, c | z, a | f, c | e, z | z, c | d, z | d, z | e, c | z, a | f, z | e, a | d, b | f, z | z, c | e, b | z, a | d, b | f]; a = 1 << 21;b = 1 << 26;c = a | b;d = 1 << 1;e = 1 << 11;f = d | e; SP7 = [a | z, c | d, b | f, z | z, z | e, b | f, a | f, c | e, c | f, a | z, z | z, b | d, z | d, b | z, c | d, z | f, b | e, a | f, a | d, b | e, b | d, c | z, c | e, a | d, c | z, z | e, z | f, c | f, a | e, z | d, b | z, a | e, b | z, a | e, a | z, b | f, b | f, c | d, c | d, z | d, a | d, b | z, b | e, a | z, c | e, z | f, a | f, c | e, z | f, b | d, c | f, c | z, a | e, z | z, z | d, c | f, z | z, a | f, c | z, z | e, b | d, b | e, z | e, a | d]; a = 1 << 18;b = 1 << 28;c = a | b;d = 1 << 6;e = 1 << 12;f = d | e; SP8 = [b | f, z | e, a | z, c | f, b | z, b | f, z | d, b | z, a | d, c | z, c | f, a | e, c | e, a | f, z | e, z | d, c | z, b | d, b | e, z | f, a | e, a | d, c | d, c | e, z | f, z | z, z | z, c | d, b | d, b | e, a | f, a | z, a | f, a | z, c | e, z | e, z | d, c | d, z | e, a | f, b | e, z | d, b | d, c | z, c | d, b | z, a | z, b | f, z | z, c | f, a | d, b | d, c | z, b | e, b | f, z | z, c | f, a | e, a | e, z | f, z | f, a | d, b | z, c | e]; // Set the key. function setKeys(keyBlock) { var i, j, l, m, n, o, pc1m = [], pcr = [], kn = [], raw0, raw1, rawi, KnLi; for (j = 0, l = 56; j < 56; ++j, l -= 8) { l += l < -5 ? 65 : l < -3 ? 31 : l < -1 ? 63 : l === 27 ? 35 : 0; // PC1 m = l & 0x7; pc1m[j] = (keyBlock[l >>> 3] & 1 << m) !== 0 ? 1 : 0; } for (i = 0; i < 16; ++i) { m = i << 1; n = m + 1; kn[m] = kn[n] = 0; for (o = 28; o < 59; o += 28) { for (j = o - 28; j < o; ++j) { l = j + totrot[i]; if (l < o) { pcr[j] = pc1m[l]; } else { pcr[j] = pc1m[l - 28]; } } } for (j = 0; j < 24; ++j) { if (pcr[PC2[j]] !== 0) { kn[m] |= 1 << 23 - j; } if (pcr[PC2[j + 24]] !== 0) { kn[n] |= 1 << 23 - j; } } } // cookey for (i = 0, rawi = 0, KnLi = 0; i < 16; ++i) { raw0 = kn[rawi++]; raw1 = kn[rawi++]; keys[KnLi] = (raw0 & 0x00fc0000) << 6; keys[KnLi] |= (raw0 & 0x00000fc0) << 10; keys[KnLi] |= (raw1 & 0x00fc0000) >>> 10; keys[KnLi] |= (raw1 & 0x00000fc0) >>> 6; ++KnLi; keys[KnLi] = (raw0 & 0x0003f000) << 12; keys[KnLi] |= (raw0 & 0x0000003f) << 16; keys[KnLi] |= (raw1 & 0x0003f000) >>> 4; keys[KnLi] |= raw1 & 0x0000003f; ++KnLi; } } // Encrypt 8 bytes of text function enc8(text) { var i = 0, b = text.slice(), fval, keysi = 0, l, r, x; // left, right, accumulator // Squash 8 bytes to 2 ints l = b[i++] << 24 | b[i++] << 16 | b[i++] << 8 | b[i++]; r = b[i++] << 24 | b[i++] << 16 | b[i++] << 8 | b[i++]; x = (l >>> 4 ^ r) & 0x0f0f0f0f; r ^= x; l ^= x << 4; x = (l >>> 16 ^ r) & 0x0000ffff; r ^= x; l ^= x << 16; x = (r >>> 2 ^ l) & 0x33333333; l ^= x; r ^= x << 2; x = (r >>> 8 ^ l) & 0x00ff00ff; l ^= x; r ^= x << 8; r = r << 1 | r >>> 31 & 1; x = (l ^ r) & 0xaaaaaaaa; l ^= x; r ^= x; l = l << 1 | l >>> 31 & 1; for (i = 0; i < 8; ++i) { x = r << 28 | r >>> 4; x ^= keys[keysi++]; fval = SP7[x & 0x3f]; fval |= SP5[x >>> 8 & 0x3f]; fval |= SP3[x >>> 16 & 0x3f]; fval |= SP1[x >>> 24 & 0x3f]; x = r ^ keys[keysi++]; fval |= SP8[x & 0x3f]; fval |= SP6[x >>> 8 & 0x3f]; fval |= SP4[x >>> 16 & 0x3f]; fval |= SP2[x >>> 24 & 0x3f]; l ^= fval; x = l << 28 | l >>> 4; x ^= keys[keysi++]; fval = SP7[x & 0x3f]; fval |= SP5[x >>> 8 & 0x3f]; fval |= SP3[x >>> 16 & 0x3f]; fval |= SP1[x >>> 24 & 0x3f]; x = l ^ keys[keysi++]; fval |= SP8[x & 0x0000003f]; fval |= SP6[x >>> 8 & 0x3f]; fval |= SP4[x >>> 16 & 0x3f]; fval |= SP2[x >>> 24 & 0x3f]; r ^= fval; } r = r << 31 | r >>> 1; x = (l ^ r) & 0xaaaaaaaa; l ^= x; r ^= x; l = l << 31 | l >>> 1; x = (l >>> 8 ^ r) & 0x00ff00ff; r ^= x; l ^= x << 8; x = (l >>> 2 ^ r) & 0x33333333; r ^= x; l ^= x << 2; x = (r >>> 16 ^ l) & 0x0000ffff; l ^= x; r ^= x << 16; x = (r >>> 4 ^ l) & 0x0f0f0f0f; l ^= x; r ^= x << 4; // Spread ints to bytes x = [r, l]; for (i = 0; i < 8; i++) { b[i] = (x[i >>> 2] >>> 8 * (3 - i % 4)) % 256; if (b[i] < 0) { b[i] += 256; } // unsigned } return b; } // Encrypt 16 bytes of text using passwd as key function encrypt(t) { return enc8(t.slice(0, 8)).concat(enc8(t.slice(8, 16))); } setKeys(passwd); // Setup keys return { 'encrypt': encrypt }; // Public interface }; // function DES