mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2025-03-13 23:22:54 +00:00
gst/librfb/: VNC Authentication should be working now temperaly with fake password 'testtest'
Original commit message from CVS: * gst/librfb/Makefile.am: * gst/librfb/d3des.c: * gst/librfb/d3des.h: * gst/librfb/rfbdecoder.c: * gst/librfb/vncauth.c: * gst/librfb/vncauth.h: VNC Authentication should be working now temperaly with fake password 'testtest'
This commit is contained in:
Thijs Vermeir
parent
f9d615c250
commit
8b83a2812f
7 changed files with 787 additions and 5 deletions
11
ChangeLog
11
ChangeLog
|
|
@ -1,3 +1,14 @@
|
|||
2007-09-19 Thijs Vermeir <thijsvermeir@gmail.com>
|
||||
|
||||
* gst/librfb/Makefile.am:
|
||||
* gst/librfb/d3des.c:
|
||||
* gst/librfb/d3des.h:
|
||||
* gst/librfb/rfbdecoder.c:
|
||||
* gst/librfb/vncauth.c:
|
||||
* gst/librfb/vncauth.h:
|
||||
VNC Authentication should be working now
|
||||
temperaly with fake password 'testtest'
|
||||
|
||||
2007-09-18 Thijs Vermeir <thijsvermeir@gmail.com>
|
||||
|
||||
* gst/librfb/rfbdecoder.c:
|
||||
|
|
|
|||
|
|
@ -11,7 +11,9 @@ libgstrfbsrc_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
|
|||
librfb_la_SOURCES = \
|
||||
rfbbuffer.c \
|
||||
rfbdecoder.c \
|
||||
rfbbytestream.c
|
||||
rfbbytestream.c \
|
||||
d3des.c \
|
||||
vncauth.c
|
||||
librfb_la_CFLAGS = $(GST_CFLAGS) -I$(srcdir)/..
|
||||
librfb_la_LIBADD = $(GLIB_LIBS)
|
||||
|
||||
|
|
@ -22,4 +24,6 @@ noinst_HEADERS = \
|
|||
rfbbytestream.h \
|
||||
rfbcontext.h \
|
||||
rfbutil.h \
|
||||
gstrfbsrc.h
|
||||
gstrfbsrc.h \
|
||||
d3des.h \
|
||||
vncauth.h
|
||||
|
|
|
|||
477
gst/librfb/d3des.c
Normal file
477
gst/librfb/d3des.c
Normal file
|
|
@ -0,0 +1,477 @@
|
|||
/*
|
||||
* This is D3DES (V5.09) by Richard Outerbridge with the double and
|
||||
* triple-length support removed for use in VNC. Also the bytebit[] array
|
||||
* has been reversed so that the most significant bit in each byte of the
|
||||
* key is ignored, not the least significant.
|
||||
*
|
||||
* 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.
|
||||
*/
|
||||
|
||||
/* D3DES (V5.09) -
|
||||
*
|
||||
* A portable, public domain, version of the Data Encryption Standard.
|
||||
*
|
||||
* Written with Symantec's THINK (Lightspeed) C by Richard Outerbridge.
|
||||
* Thanks to: Dan Hoey for his excellent Initial and Inverse permutation
|
||||
* code; Jim Gillogly & Phil Karn for the DES key schedule code; Dennis
|
||||
* Ferguson, Eric Young and Dana How for comparing notes; and Ray Lau,
|
||||
* for humouring me on.
|
||||
*
|
||||
* Copyright (c) 1988,1989,1990,1991,1992 by Richard Outerbridge.
|
||||
* (GEnie : OUTER; CIS : [71755,204]) Graven Imagery, 1992.
|
||||
*/
|
||||
|
||||
#include "config.h"
|
||||
#include "stdint.h"
|
||||
|
||||
#include "d3des.h"
|
||||
|
||||
static void scrunch (unsigned char *, unsigned long *);
|
||||
static void unscrun (unsigned long *, unsigned char *);
|
||||
static void desfunc (unsigned long *, unsigned long *);
|
||||
static void cookey (unsigned long *);
|
||||
|
||||
static unsigned long KnL[32] = { 0L };
|
||||
|
||||
//static unsigned long KnR[32] = { 0L };
|
||||
//static unsigned long Kn3[32] = { 0L };
|
||||
/*
|
||||
* static unsigned char Df_Key[24] = {
|
||||
* 0x01,0x23,0x45,0x67,0x89,0xab,0xcd,0xef,
|
||||
* 0xfe,0xdc,0xba,0x98,0x76,0x54,0x32,0x10,
|
||||
* 0x89,0xab,0xcd,0xef,0x01,0x23,0x45,0x67 };
|
||||
*/
|
||||
|
||||
static uint16_t bytebit[8] = {
|
||||
01, 02, 04, 010, 020, 040, 0100, 0200
|
||||
};
|
||||
|
||||
static unsigned long bigbyte[24] = {
|
||||
0x800000L, 0x400000L, 0x200000L, 0x100000L,
|
||||
0x80000L, 0x40000L, 0x20000L, 0x10000L,
|
||||
0x8000L, 0x4000L, 0x2000L, 0x1000L,
|
||||
0x800L, 0x400L, 0x200L, 0x100L,
|
||||
0x80L, 0x40L, 0x20L, 0x10L,
|
||||
0x8L, 0x4L, 0x2L, 0x1L
|
||||
};
|
||||
|
||||
/* Use the key schedule specified in the Standard (ANSI X3.92-1981). */
|
||||
|
||||
static unsigned char pc1[56] = {
|
||||
56, 48, 40, 32, 24, 16, 8, 0, 57, 49, 41, 33, 25, 17,
|
||||
9, 1, 58, 50, 42, 34, 26, 18, 10, 2, 59, 51, 43, 35,
|
||||
62, 54, 46, 38, 30, 22, 14, 6, 61, 53, 45, 37, 29, 21,
|
||||
13, 5, 60, 52, 44, 36, 28, 20, 12, 4, 27, 19, 11, 3
|
||||
};
|
||||
|
||||
static unsigned char totrot[16] = {
|
||||
1, 2, 4, 6, 8, 10, 12, 14, 15, 17, 19, 21, 23, 25, 27, 28
|
||||
};
|
||||
|
||||
static unsigned char pc2[48] = {
|
||||
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
|
||||
};
|
||||
|
||||
void
|
||||
deskey (key, edf) /* Thanks to James Gillogly & Phil Karn! */
|
||||
unsigned char *key;
|
||||
int32_t edf;
|
||||
{
|
||||
register int32_t i, j, l, m, n;
|
||||
unsigned char pc1m[56], pcr[56];
|
||||
unsigned long kn[32];
|
||||
|
||||
for (j = 0; j < 56; j++) {
|
||||
l = pc1[j];
|
||||
m = l & 07;
|
||||
pc1m[j] = (key[l >> 3] & bytebit[m]) ? 1 : 0;
|
||||
}
|
||||
for (i = 0; i < 16; i++) {
|
||||
if (edf == DE1)
|
||||
m = (15 - i) << 1;
|
||||
else
|
||||
m = i << 1;
|
||||
n = m + 1;
|
||||
kn[m] = kn[n] = 0L;
|
||||
for (j = 0; j < 28; j++) {
|
||||
l = j + totrot[i];
|
||||
if (l < 28)
|
||||
pcr[j] = pc1m[l];
|
||||
else
|
||||
pcr[j] = pc1m[l - 28];
|
||||
}
|
||||
for (j = 28; j < 56; j++) {
|
||||
l = j + totrot[i];
|
||||
if (l < 56)
|
||||
pcr[j] = pc1m[l];
|
||||
else
|
||||
pcr[j] = pc1m[l - 28];
|
||||
}
|
||||
for (j = 0; j < 24; j++) {
|
||||
if (pcr[pc2[j]])
|
||||
kn[m] |= bigbyte[j];
|
||||
if (pcr[pc2[j + 24]])
|
||||
kn[n] |= bigbyte[j];
|
||||
}
|
||||
}
|
||||
cookey (kn);
|
||||
return;
|
||||
}
|
||||
|
||||
static void
|
||||
cookey (raw1)
|
||||
register unsigned long *raw1;
|
||||
{
|
||||
register unsigned long *cook, *raw0;
|
||||
unsigned long dough[32];
|
||||
register int32_t i;
|
||||
|
||||
cook = dough;
|
||||
for (i = 0; i < 16; i++, raw1++) {
|
||||
raw0 = raw1++;
|
||||
*cook = (*raw0 & 0x00fc0000L) << 6;
|
||||
*cook |= (*raw0 & 0x00000fc0L) << 10;
|
||||
*cook |= (*raw1 & 0x00fc0000L) >> 10;
|
||||
*cook++ |= (*raw1 & 0x00000fc0L) >> 6;
|
||||
*cook = (*raw0 & 0x0003f000L) << 12;
|
||||
*cook |= (*raw0 & 0x0000003fL) << 16;
|
||||
*cook |= (*raw1 & 0x0003f000L) >> 4;
|
||||
*cook++ |= (*raw1 & 0x0000003fL);
|
||||
}
|
||||
usekey (dough);
|
||||
return;
|
||||
}
|
||||
|
||||
void
|
||||
cpkey (into)
|
||||
register unsigned long *into;
|
||||
{
|
||||
register unsigned long *from, *endp;
|
||||
|
||||
from = KnL, endp = &KnL[32];
|
||||
while (from < endp)
|
||||
*into++ = *from++;
|
||||
return;
|
||||
}
|
||||
|
||||
void
|
||||
usekey (from)
|
||||
register unsigned long *from;
|
||||
{
|
||||
register unsigned long *to, *endp;
|
||||
|
||||
to = KnL, endp = &KnL[32];
|
||||
while (to < endp)
|
||||
*to++ = *from++;
|
||||
return;
|
||||
}
|
||||
|
||||
void
|
||||
des (inblock, outblock)
|
||||
unsigned char *inblock, *outblock;
|
||||
{
|
||||
unsigned long work[2];
|
||||
|
||||
scrunch (inblock, work);
|
||||
desfunc (work, KnL);
|
||||
unscrun (work, outblock);
|
||||
return;
|
||||
}
|
||||
|
||||
static void
|
||||
scrunch (outof, into)
|
||||
register unsigned char *outof;
|
||||
register unsigned long *into;
|
||||
{
|
||||
*into = (*outof++ & 0xffL) << 24;
|
||||
*into |= (*outof++ & 0xffL) << 16;
|
||||
*into |= (*outof++ & 0xffL) << 8;
|
||||
*into++ |= (*outof++ & 0xffL);
|
||||
*into = (*outof++ & 0xffL) << 24;
|
||||
*into |= (*outof++ & 0xffL) << 16;
|
||||
*into |= (*outof++ & 0xffL) << 8;
|
||||
*into |= (*outof & 0xffL);
|
||||
return;
|
||||
}
|
||||
|
||||
static void
|
||||
unscrun (outof, into)
|
||||
register unsigned long *outof;
|
||||
register unsigned char *into;
|
||||
{
|
||||
*into++ = (*outof >> 24) & 0xffL;
|
||||
*into++ = (*outof >> 16) & 0xffL;
|
||||
*into++ = (*outof >> 8) & 0xffL;
|
||||
*into++ = *outof++ & 0xffL;
|
||||
*into++ = (*outof >> 24) & 0xffL;
|
||||
*into++ = (*outof >> 16) & 0xffL;
|
||||
*into++ = (*outof >> 8) & 0xffL;
|
||||
*into = *outof & 0xffL;
|
||||
return;
|
||||
}
|
||||
|
||||
static unsigned long SP1[64] = {
|
||||
0x01010400L, 0x00000000L, 0x00010000L, 0x01010404L,
|
||||
0x01010004L, 0x00010404L, 0x00000004L, 0x00010000L,
|
||||
0x00000400L, 0x01010400L, 0x01010404L, 0x00000400L,
|
||||
0x01000404L, 0x01010004L, 0x01000000L, 0x00000004L,
|
||||
0x00000404L, 0x01000400L, 0x01000400L, 0x00010400L,
|
||||
0x00010400L, 0x01010000L, 0x01010000L, 0x01000404L,
|
||||
0x00010004L, 0x01000004L, 0x01000004L, 0x00010004L,
|
||||
0x00000000L, 0x00000404L, 0x00010404L, 0x01000000L,
|
||||
0x00010000L, 0x01010404L, 0x00000004L, 0x01010000L,
|
||||
0x01010400L, 0x01000000L, 0x01000000L, 0x00000400L,
|
||||
0x01010004L, 0x00010000L, 0x00010400L, 0x01000004L,
|
||||
0x00000400L, 0x00000004L, 0x01000404L, 0x00010404L,
|
||||
0x01010404L, 0x00010004L, 0x01010000L, 0x01000404L,
|
||||
0x01000004L, 0x00000404L, 0x00010404L, 0x01010400L,
|
||||
0x00000404L, 0x01000400L, 0x01000400L, 0x00000000L,
|
||||
0x00010004L, 0x00010400L, 0x00000000L, 0x01010004L
|
||||
};
|
||||
|
||||
static unsigned long SP2[64] = {
|
||||
0x80108020L, 0x80008000L, 0x00008000L, 0x00108020L,
|
||||
0x00100000L, 0x00000020L, 0x80100020L, 0x80008020L,
|
||||
0x80000020L, 0x80108020L, 0x80108000L, 0x80000000L,
|
||||
0x80008000L, 0x00100000L, 0x00000020L, 0x80100020L,
|
||||
0x00108000L, 0x00100020L, 0x80008020L, 0x00000000L,
|
||||
0x80000000L, 0x00008000L, 0x00108020L, 0x80100000L,
|
||||
0x00100020L, 0x80000020L, 0x00000000L, 0x00108000L,
|
||||
0x00008020L, 0x80108000L, 0x80100000L, 0x00008020L,
|
||||
0x00000000L, 0x00108020L, 0x80100020L, 0x00100000L,
|
||||
0x80008020L, 0x80100000L, 0x80108000L, 0x00008000L,
|
||||
0x80100000L, 0x80008000L, 0x00000020L, 0x80108020L,
|
||||
0x00108020L, 0x00000020L, 0x00008000L, 0x80000000L,
|
||||
0x00008020L, 0x80108000L, 0x00100000L, 0x80000020L,
|
||||
0x00100020L, 0x80008020L, 0x80000020L, 0x00100020L,
|
||||
0x00108000L, 0x00000000L, 0x80008000L, 0x00008020L,
|
||||
0x80000000L, 0x80100020L, 0x80108020L, 0x00108000L
|
||||
};
|
||||
|
||||
static unsigned long SP3[64] = {
|
||||
0x00000208L, 0x08020200L, 0x00000000L, 0x08020008L,
|
||||
0x08000200L, 0x00000000L, 0x00020208L, 0x08000200L,
|
||||
0x00020008L, 0x08000008L, 0x08000008L, 0x00020000L,
|
||||
0x08020208L, 0x00020008L, 0x08020000L, 0x00000208L,
|
||||
0x08000000L, 0x00000008L, 0x08020200L, 0x00000200L,
|
||||
0x00020200L, 0x08020000L, 0x08020008L, 0x00020208L,
|
||||
0x08000208L, 0x00020200L, 0x00020000L, 0x08000208L,
|
||||
0x00000008L, 0x08020208L, 0x00000200L, 0x08000000L,
|
||||
0x08020200L, 0x08000000L, 0x00020008L, 0x00000208L,
|
||||
0x00020000L, 0x08020200L, 0x08000200L, 0x00000000L,
|
||||
0x00000200L, 0x00020008L, 0x08020208L, 0x08000200L,
|
||||
0x08000008L, 0x00000200L, 0x00000000L, 0x08020008L,
|
||||
0x08000208L, 0x00020000L, 0x08000000L, 0x08020208L,
|
||||
0x00000008L, 0x00020208L, 0x00020200L, 0x08000008L,
|
||||
0x08020000L, 0x08000208L, 0x00000208L, 0x08020000L,
|
||||
0x00020208L, 0x00000008L, 0x08020008L, 0x00020200L
|
||||
};
|
||||
|
||||
static unsigned long SP4[64] = {
|
||||
0x00802001L, 0x00002081L, 0x00002081L, 0x00000080L,
|
||||
0x00802080L, 0x00800081L, 0x00800001L, 0x00002001L,
|
||||
0x00000000L, 0x00802000L, 0x00802000L, 0x00802081L,
|
||||
0x00000081L, 0x00000000L, 0x00800080L, 0x00800001L,
|
||||
0x00000001L, 0x00002000L, 0x00800000L, 0x00802001L,
|
||||
0x00000080L, 0x00800000L, 0x00002001L, 0x00002080L,
|
||||
0x00800081L, 0x00000001L, 0x00002080L, 0x00800080L,
|
||||
0x00002000L, 0x00802080L, 0x00802081L, 0x00000081L,
|
||||
0x00800080L, 0x00800001L, 0x00802000L, 0x00802081L,
|
||||
0x00000081L, 0x00000000L, 0x00000000L, 0x00802000L,
|
||||
0x00002080L, 0x00800080L, 0x00800081L, 0x00000001L,
|
||||
0x00802001L, 0x00002081L, 0x00002081L, 0x00000080L,
|
||||
0x00802081L, 0x00000081L, 0x00000001L, 0x00002000L,
|
||||
0x00800001L, 0x00002001L, 0x00802080L, 0x00800081L,
|
||||
0x00002001L, 0x00002080L, 0x00800000L, 0x00802001L,
|
||||
0x00000080L, 0x00800000L, 0x00002000L, 0x00802080L
|
||||
};
|
||||
|
||||
static unsigned long SP5[64] = {
|
||||
0x00000100L, 0x02080100L, 0x02080000L, 0x42000100L,
|
||||
0x00080000L, 0x00000100L, 0x40000000L, 0x02080000L,
|
||||
0x40080100L, 0x00080000L, 0x02000100L, 0x40080100L,
|
||||
0x42000100L, 0x42080000L, 0x00080100L, 0x40000000L,
|
||||
0x02000000L, 0x40080000L, 0x40080000L, 0x00000000L,
|
||||
0x40000100L, 0x42080100L, 0x42080100L, 0x02000100L,
|
||||
0x42080000L, 0x40000100L, 0x00000000L, 0x42000000L,
|
||||
0x02080100L, 0x02000000L, 0x42000000L, 0x00080100L,
|
||||
0x00080000L, 0x42000100L, 0x00000100L, 0x02000000L,
|
||||
0x40000000L, 0x02080000L, 0x42000100L, 0x40080100L,
|
||||
0x02000100L, 0x40000000L, 0x42080000L, 0x02080100L,
|
||||
0x40080100L, 0x00000100L, 0x02000000L, 0x42080000L,
|
||||
0x42080100L, 0x00080100L, 0x42000000L, 0x42080100L,
|
||||
0x02080000L, 0x00000000L, 0x40080000L, 0x42000000L,
|
||||
0x00080100L, 0x02000100L, 0x40000100L, 0x00080000L,
|
||||
0x00000000L, 0x40080000L, 0x02080100L, 0x40000100L
|
||||
};
|
||||
|
||||
static unsigned long SP6[64] = {
|
||||
0x20000010L, 0x20400000L, 0x00004000L, 0x20404010L,
|
||||
0x20400000L, 0x00000010L, 0x20404010L, 0x00400000L,
|
||||
0x20004000L, 0x00404010L, 0x00400000L, 0x20000010L,
|
||||
0x00400010L, 0x20004000L, 0x20000000L, 0x00004010L,
|
||||
0x00000000L, 0x00400010L, 0x20004010L, 0x00004000L,
|
||||
0x00404000L, 0x20004010L, 0x00000010L, 0x20400010L,
|
||||
0x20400010L, 0x00000000L, 0x00404010L, 0x20404000L,
|
||||
0x00004010L, 0x00404000L, 0x20404000L, 0x20000000L,
|
||||
0x20004000L, 0x00000010L, 0x20400010L, 0x00404000L,
|
||||
0x20404010L, 0x00400000L, 0x00004010L, 0x20000010L,
|
||||
0x00400000L, 0x20004000L, 0x20000000L, 0x00004010L,
|
||||
0x20000010L, 0x20404010L, 0x00404000L, 0x20400000L,
|
||||
0x00404010L, 0x20404000L, 0x00000000L, 0x20400010L,
|
||||
0x00000010L, 0x00004000L, 0x20400000L, 0x00404010L,
|
||||
0x00004000L, 0x00400010L, 0x20004010L, 0x00000000L,
|
||||
0x20404000L, 0x20000000L, 0x00400010L, 0x20004010L
|
||||
};
|
||||
|
||||
static unsigned long SP7[64] = {
|
||||
0x00200000L, 0x04200002L, 0x04000802L, 0x00000000L,
|
||||
0x00000800L, 0x04000802L, 0x00200802L, 0x04200800L,
|
||||
0x04200802L, 0x00200000L, 0x00000000L, 0x04000002L,
|
||||
0x00000002L, 0x04000000L, 0x04200002L, 0x00000802L,
|
||||
0x04000800L, 0x00200802L, 0x00200002L, 0x04000800L,
|
||||
0x04000002L, 0x04200000L, 0x04200800L, 0x00200002L,
|
||||
0x04200000L, 0x00000800L, 0x00000802L, 0x04200802L,
|
||||
0x00200800L, 0x00000002L, 0x04000000L, 0x00200800L,
|
||||
0x04000000L, 0x00200800L, 0x00200000L, 0x04000802L,
|
||||
0x04000802L, 0x04200002L, 0x04200002L, 0x00000002L,
|
||||
0x00200002L, 0x04000000L, 0x04000800L, 0x00200000L,
|
||||
0x04200800L, 0x00000802L, 0x00200802L, 0x04200800L,
|
||||
0x00000802L, 0x04000002L, 0x04200802L, 0x04200000L,
|
||||
0x00200800L, 0x00000000L, 0x00000002L, 0x04200802L,
|
||||
0x00000000L, 0x00200802L, 0x04200000L, 0x00000800L,
|
||||
0x04000002L, 0x04000800L, 0x00000800L, 0x00200002L
|
||||
};
|
||||
|
||||
static unsigned long SP8[64] = {
|
||||
0x10001040L, 0x00001000L, 0x00040000L, 0x10041040L,
|
||||
0x10000000L, 0x10001040L, 0x00000040L, 0x10000000L,
|
||||
0x00040040L, 0x10040000L, 0x10041040L, 0x00041000L,
|
||||
0x10041000L, 0x00041040L, 0x00001000L, 0x00000040L,
|
||||
0x10040000L, 0x10000040L, 0x10001000L, 0x00001040L,
|
||||
0x00041000L, 0x00040040L, 0x10040040L, 0x10041000L,
|
||||
0x00001040L, 0x00000000L, 0x00000000L, 0x10040040L,
|
||||
0x10000040L, 0x10001000L, 0x00041040L, 0x00040000L,
|
||||
0x00041040L, 0x00040000L, 0x10041000L, 0x00001000L,
|
||||
0x00000040L, 0x10040040L, 0x00001000L, 0x00041040L,
|
||||
0x10001000L, 0x00000040L, 0x10000040L, 0x10040000L,
|
||||
0x10040040L, 0x10000000L, 0x00040000L, 0x10001040L,
|
||||
0x00000000L, 0x10041040L, 0x00040040L, 0x10000040L,
|
||||
0x10040000L, 0x10001000L, 0x10001040L, 0x00000000L,
|
||||
0x10041040L, 0x00041000L, 0x00041000L, 0x00001040L,
|
||||
0x00001040L, 0x00040040L, 0x10000000L, 0x10041000L
|
||||
};
|
||||
|
||||
static void
|
||||
desfunc (block, keys)
|
||||
register unsigned long *block, *keys;
|
||||
{
|
||||
register unsigned long fval, work, right, leftt;
|
||||
register int32_t round;
|
||||
|
||||
leftt = block[0];
|
||||
right = block[1];
|
||||
work = ((leftt >> 4) ^ right) & 0x0f0f0f0fL;
|
||||
right ^= work;
|
||||
leftt ^= (work << 4);
|
||||
work = ((leftt >> 16) ^ right) & 0x0000ffffL;
|
||||
right ^= work;
|
||||
leftt ^= (work << 16);
|
||||
work = ((right >> 2) ^ leftt) & 0x33333333L;
|
||||
leftt ^= work;
|
||||
right ^= (work << 2);
|
||||
work = ((right >> 8) ^ leftt) & 0x00ff00ffL;
|
||||
leftt ^= work;
|
||||
right ^= (work << 8);
|
||||
right = ((right << 1) | ((right >> 31) & 1L)) & 0xffffffffL;
|
||||
work = (leftt ^ right) & 0xaaaaaaaaL;
|
||||
leftt ^= work;
|
||||
right ^= work;
|
||||
leftt = ((leftt << 1) | ((leftt >> 31) & 1L)) & 0xffffffffL;
|
||||
|
||||
for (round = 0; round < 8; round++) {
|
||||
work = (right << 28) | (right >> 4);
|
||||
work ^= *keys++;
|
||||
fval = SP7[work & 0x3fL];
|
||||
fval |= SP5[(work >> 8) & 0x3fL];
|
||||
fval |= SP3[(work >> 16) & 0x3fL];
|
||||
fval |= SP1[(work >> 24) & 0x3fL];
|
||||
work = right ^ *keys++;
|
||||
fval |= SP8[work & 0x3fL];
|
||||
fval |= SP6[(work >> 8) & 0x3fL];
|
||||
fval |= SP4[(work >> 16) & 0x3fL];
|
||||
fval |= SP2[(work >> 24) & 0x3fL];
|
||||
leftt ^= fval;
|
||||
work = (leftt << 28) | (leftt >> 4);
|
||||
work ^= *keys++;
|
||||
fval = SP7[work & 0x3fL];
|
||||
fval |= SP5[(work >> 8) & 0x3fL];
|
||||
fval |= SP3[(work >> 16) & 0x3fL];
|
||||
fval |= SP1[(work >> 24) & 0x3fL];
|
||||
work = leftt ^ *keys++;
|
||||
fval |= SP8[work & 0x3fL];
|
||||
fval |= SP6[(work >> 8) & 0x3fL];
|
||||
fval |= SP4[(work >> 16) & 0x3fL];
|
||||
fval |= SP2[(work >> 24) & 0x3fL];
|
||||
right ^= fval;
|
||||
}
|
||||
|
||||
right = (right << 31) | (right >> 1);
|
||||
work = (leftt ^ right) & 0xaaaaaaaaL;
|
||||
leftt ^= work;
|
||||
right ^= work;
|
||||
leftt = (leftt << 31) | (leftt >> 1);
|
||||
work = ((leftt >> 8) ^ right) & 0x00ff00ffL;
|
||||
right ^= work;
|
||||
leftt ^= (work << 8);
|
||||
work = ((leftt >> 2) ^ right) & 0x33333333L;
|
||||
right ^= work;
|
||||
leftt ^= (work << 2);
|
||||
work = ((right >> 16) ^ leftt) & 0x0000ffffL;
|
||||
leftt ^= work;
|
||||
right ^= (work << 16);
|
||||
work = ((right >> 4) ^ leftt) & 0x0f0f0f0fL;
|
||||
leftt ^= work;
|
||||
right ^= (work << 4);
|
||||
*block++ = right;
|
||||
*block = leftt;
|
||||
return;
|
||||
}
|
||||
|
||||
/* Validation sets:
|
||||
*
|
||||
* Single-length key, single-length plaintext -
|
||||
* Key : 0123 4567 89ab cdef
|
||||
* Plain : 0123 4567 89ab cde7
|
||||
* Cipher : c957 4425 6a5e d31d
|
||||
*
|
||||
* Double-length key, single-length plaintext -
|
||||
* Key : 0123 4567 89ab cdef fedc ba98 7654 3210
|
||||
* Plain : 0123 4567 89ab cde7
|
||||
* Cipher : 7f1d 0a77 826b 8aff
|
||||
*
|
||||
* Double-length key, double-length plaintext -
|
||||
* Key : 0123 4567 89ab cdef fedc ba98 7654 3210
|
||||
* Plain : 0123 4567 89ab cdef 0123 4567 89ab cdff
|
||||
* Cipher : 27a0 8440 406a df60 278f 47cf 42d6 15d7
|
||||
*
|
||||
* Triple-length key, single-length plaintext -
|
||||
* Key : 0123 4567 89ab cdef fedc ba98 7654 3210 89ab cdef 0123 4567
|
||||
* Plain : 0123 4567 89ab cde7
|
||||
* Cipher : de0b 7c06 ae5e 0ed5
|
||||
*
|
||||
* Triple-length key, double-length plaintext -
|
||||
* Key : 0123 4567 89ab cdef fedc ba98 7654 3210 89ab cdef 0123 4567
|
||||
* Plain : 0123 4567 89ab cdef 0123 4567 89ab cdff
|
||||
* Cipher : ad0d 1b30 ac17 cf07 0ed1 1c63 81e4 4de5
|
||||
*
|
||||
* d3des V5.0a rwo 9208.07 18:44 Graven Imagery
|
||||
**********************************************************************/
|
||||
52
gst/librfb/d3des.h
Normal file
52
gst/librfb/d3des.h
Normal file
|
|
@ -0,0 +1,52 @@
|
|||
/*
|
||||
* This is D3DES (V5.09) by Richard Outerbridge with the double and
|
||||
* triple-length support removed for use in VNC.
|
||||
*
|
||||
* 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.
|
||||
*/
|
||||
|
||||
/* d3des.h -
|
||||
*
|
||||
* Headers and defines for d3des.c
|
||||
* Graven Imagery, 1992.
|
||||
*
|
||||
* Copyright (c) 1988,1989,1990,1991,1992 by Richard Outerbridge
|
||||
* (GEnie : OUTER; CIS : [71755,204])
|
||||
*/
|
||||
|
||||
#define EN0 0 /* MODE == encrypt */
|
||||
#define DE1 1 /* MODE == decrypt */
|
||||
|
||||
extern void deskey(unsigned char *, int);
|
||||
/* hexkey[8] MODE
|
||||
* Sets the internal key register according to the hexadecimal
|
||||
* key contained in the 8 bytes of hexkey, according to the DES,
|
||||
* for encryption or decryption according to MODE.
|
||||
*/
|
||||
|
||||
extern void usekey(unsigned long *);
|
||||
/* cookedkey[32]
|
||||
* Loads the internal key register with the data in cookedkey.
|
||||
*/
|
||||
|
||||
extern void cpkey(unsigned long *);
|
||||
/* cookedkey[32]
|
||||
* Copies the contents of the internal key register into the storage
|
||||
* located at &cookedkey[0].
|
||||
*/
|
||||
|
||||
extern void des(unsigned char *, unsigned char *);
|
||||
/* from[8] to[8]
|
||||
* Encrypts/Decrypts (according to the key currently loaded in the
|
||||
* internal key register) one block of eight bytes at address 'from'
|
||||
* into the block at address 'to'. They can be the same.
|
||||
*/
|
||||
|
||||
/* d3des.h V5.09 rwo 9208.04 15:06 Graven Imagery
|
||||
********************************************************************/
|
||||
|
||||
|
|
@ -13,6 +13,8 @@
|
|||
#include <arpa/inet.h>
|
||||
#include <errno.h>
|
||||
|
||||
#include "vncauth.h"
|
||||
|
||||
#define RFB_GET_UINT32(ptr) GUINT32_FROM_BE (*(guint32 *)(ptr))
|
||||
#define RFB_GET_UINT16(ptr) GUINT16_FROM_BE (*(guint16 *)(ptr))
|
||||
#define RFB_GET_UINT8(ptr) (*(guint8 *)(ptr))
|
||||
|
|
@ -39,6 +41,7 @@ static gboolean rfb_decoder_state_send_client_initialisation (RfbDecoder *
|
|||
decoder);
|
||||
static gboolean rfb_decoder_state_wait_for_server_initialisation (RfbDecoder *
|
||||
decoder);
|
||||
static gboolean rfb_decoder_state_security_result (RfbDecoder * decoder);
|
||||
static gboolean rfb_decoder_state_normal (RfbDecoder * decoder);
|
||||
static gboolean rfb_decoder_state_framebuffer_update (RfbDecoder * decoder);
|
||||
static gboolean rfb_decoder_state_framebuffer_update_rectangle (RfbDecoder *
|
||||
|
|
@ -279,8 +282,7 @@ rfb_decoder_state_wait_for_security (RfbDecoder * decoder)
|
|||
*/
|
||||
if (decoder->protocol_major == 3 && decoder->protocol_minor == 3) {
|
||||
ret = rfb_bytestream_read (decoder->bytestream, &buffer, 4);
|
||||
if (ret < 4)
|
||||
return FALSE;
|
||||
g_return_val_if_fail (ret == 4, FALSE);
|
||||
|
||||
decoder->security_type = RFB_GET_UINT32 (buffer->data);
|
||||
GST_DEBUG ("security = %d", decoder->security_type);
|
||||
|
|
@ -294,15 +296,54 @@ rfb_decoder_state_wait_for_security (RfbDecoder * decoder)
|
|||
switch (decoder->security_type) {
|
||||
case SECURITY_NONE:
|
||||
GST_DEBUG ("Security type is None");
|
||||
/* \TODO version 3.8 goes to the security result */
|
||||
decoder->state = rfb_decoder_state_send_client_initialisation;
|
||||
break;
|
||||
case SECURITY_VNC:
|
||||
/**
|
||||
* VNC authentication is to be used and protocol data is to be sent unencrypted. The
|
||||
* server sends a random 16-byte challenge
|
||||
*/
|
||||
GST_DEBUG ("Security type is VNC Authentication");
|
||||
/* \TODO Check if for the correct password */
|
||||
|
||||
ret = rfb_bytestream_read (decoder->bytestream, &buffer, 16);
|
||||
g_return_val_if_fail (ret == 16, FALSE);
|
||||
vncEncryptBytes ((unsigned char *) buffer->data, "testtest");
|
||||
rfb_decoder_send (decoder, buffer->data, 16);
|
||||
|
||||
GST_DEBUG ("Encrypted challenge send to server");
|
||||
|
||||
decoder->state = rfb_decoder_state_security_result;
|
||||
break;
|
||||
default:
|
||||
GST_INFO ("Security type is not known");
|
||||
return FALSE;
|
||||
break;
|
||||
}
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
/**
|
||||
* The server sends a word to inform the client whether the security handshaking was
|
||||
* successful.
|
||||
*/
|
||||
static gboolean
|
||||
rfb_decoder_state_security_result (RfbDecoder * decoder)
|
||||
{
|
||||
RfbBuffer *buffer;
|
||||
gint ret;
|
||||
|
||||
ret = rfb_bytestream_read (decoder->bytestream, &buffer, 4);
|
||||
g_return_val_if_fail (ret == 4, FALSE);
|
||||
if (RFB_GET_UINT32 (buffer->data) != 0) {
|
||||
GST_INFO ("Security handshaking failed");
|
||||
/* \TODO version 3.8 gives a reason why it failed */
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
GST_DEBUG ("Security handshaking succesfull");
|
||||
decoder->state = rfb_decoder_state_send_client_initialisation;
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
|
|
|
|||
166
gst/librfb/vncauth.c
Normal file
166
gst/librfb/vncauth.c
Normal file
|
|
@ -0,0 +1,166 @@
|
|||
/*
|
||||
* Copyright (C) 1999 AT&T Laboratories Cambridge. All Rights Reserved.
|
||||
*
|
||||
* This is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* 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. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
|
||||
* USA.
|
||||
*/
|
||||
|
||||
/*
|
||||
* vncauth.c - Functions for VNC password management and authentication.
|
||||
*/
|
||||
|
||||
#include "config.h"
|
||||
#include "stdint.h"
|
||||
#include "stdio.h"
|
||||
#include "stdlib.h"
|
||||
#include "string.h"
|
||||
#include "time.h"
|
||||
#include "vncauth.h"
|
||||
#include "d3des.h"
|
||||
|
||||
#include "sys/stat.h"
|
||||
|
||||
|
||||
/*
|
||||
* We use a fixed key to store passwords, since we assume that our local
|
||||
* file system is secure but nonetheless don't want to store passwords
|
||||
* as plaintext.
|
||||
*/
|
||||
|
||||
unsigned char fixedkey[8] = { 23, 82, 107, 6, 35, 78, 88, 7 };
|
||||
|
||||
|
||||
/*
|
||||
* Encrypt a password and store it in a file. Returns 0 if successful,
|
||||
* 1 if the file could not be written.
|
||||
*/
|
||||
|
||||
int32_t
|
||||
vncEncryptAndStorePasswd (char *passwd, char *fname)
|
||||
{
|
||||
FILE *fp;
|
||||
uint32_t i;
|
||||
unsigned char encryptedPasswd[8];
|
||||
|
||||
if ((fp = fopen (fname, "w")) == NULL)
|
||||
return 1;
|
||||
|
||||
chmod (fname, S_IRUSR | S_IWUSR);
|
||||
|
||||
/* pad password with nulls */
|
||||
|
||||
for (i = 0; i < 8; i++) {
|
||||
if (i < strlen (passwd)) {
|
||||
encryptedPasswd[i] = passwd[i];
|
||||
} else {
|
||||
encryptedPasswd[i] = 0;
|
||||
}
|
||||
}
|
||||
|
||||
/* Do encryption in-place - this way we overwrite our copy of the plaintext
|
||||
password */
|
||||
|
||||
deskey (fixedkey, EN0);
|
||||
des (encryptedPasswd, encryptedPasswd);
|
||||
|
||||
for (i = 0; i < 8; i++) {
|
||||
putc (encryptedPasswd[i], fp);
|
||||
}
|
||||
|
||||
fclose (fp);
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* Decrypt a password from a file. Returns a pointer to a newly allocated
|
||||
* string containing the password or a null pointer if the password could
|
||||
* not be retrieved for some reason.
|
||||
*/
|
||||
|
||||
char *
|
||||
vncDecryptPasswdFromFile (char *fname)
|
||||
{
|
||||
FILE *fp;
|
||||
int32_t i, ch;
|
||||
unsigned char *passwd = (unsigned char *) malloc (9);
|
||||
|
||||
if ((fp = fopen (fname, "r")) == NULL)
|
||||
return NULL;
|
||||
|
||||
for (i = 0; i < 8; i++) {
|
||||
ch = getc (fp);
|
||||
if (ch == EOF) {
|
||||
fclose (fp);
|
||||
return NULL;
|
||||
}
|
||||
passwd[i] = ch;
|
||||
}
|
||||
|
||||
fclose (fp);
|
||||
|
||||
deskey (fixedkey, DE1);
|
||||
des (passwd, passwd);
|
||||
|
||||
passwd[8] = 0;
|
||||
|
||||
return (char *) passwd;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* Generate CHALLENGESIZE random bytes for use in challenge-response
|
||||
* authentication.
|
||||
*/
|
||||
|
||||
void
|
||||
vncRandomBytes (unsigned char *bytes)
|
||||
{
|
||||
int32_t i;
|
||||
uint32_t seed = (uint32_t) time (0);
|
||||
|
||||
srandom (seed);
|
||||
for (i = 0; i < CHALLENGESIZE; i++) {
|
||||
bytes[i] = (unsigned char) (random () & 255);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* Encrypt CHALLENGESIZE bytes in memory using a password.
|
||||
*/
|
||||
|
||||
void
|
||||
vncEncryptBytes (unsigned char *bytes, char *passwd)
|
||||
{
|
||||
unsigned char key[8];
|
||||
uint32_t i;
|
||||
|
||||
/* key is simply password padded with nulls */
|
||||
|
||||
for (i = 0; i < 8; i++) {
|
||||
if (i < strlen (passwd)) {
|
||||
key[i] = passwd[i];
|
||||
} else {
|
||||
key[i] = 0;
|
||||
}
|
||||
}
|
||||
|
||||
deskey (key, EN0);
|
||||
|
||||
for (i = 0; i < CHALLENGESIZE; i += 8) {
|
||||
des (bytes + i, bytes + i);
|
||||
}
|
||||
}
|
||||
31
gst/librfb/vncauth.h
Normal file
31
gst/librfb/vncauth.h
Normal file
|
|
@ -0,0 +1,31 @@
|
|||
/*
|
||||
* Copyright (C) 1999 AT&T Laboratories Cambridge. All Rights Reserved.
|
||||
*
|
||||
* This is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* 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. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this software; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
|
||||
* USA.
|
||||
*/
|
||||
|
||||
/*
|
||||
* vncauth.h - describes the functions provided by the vncauth library.
|
||||
*/
|
||||
|
||||
#define MAXPWLEN 8
|
||||
#define CHALLENGESIZE 16
|
||||
|
||||
extern int vncEncryptAndStorePasswd(char *passwd, char *fname);
|
||||
extern char *vncDecryptPasswdFromFile(char *fname);
|
||||
extern void vncRandomBytes(unsigned char *bytes);
|
||||
extern void vncEncryptBytes(unsigned char *bytes, char *passwd);
|
||||
|
||||
Loading…
Reference in a new issue