mirror of
https://github.com/retspen/webvirtcloud
synced 2024-11-01 12:04:15 +00:00
283 lines
No EOL
13 KiB
JavaScript
Executable file
283 lines
No EOL
13 KiB
JavaScript
Executable file
"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
|