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webvirtcloud/static/js/novnc/core/des.js

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"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 <dzimm@widget.com>, 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 <jef@acme.com>. 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
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