diff options
author | dscho <dscho> | 2001-09-25 12:42:40 +0000 |
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committer | dscho <dscho> | 2001-09-25 12:42:40 +0000 |
commit | 1342b7e17844edf3bc57eba531f59178ece2f365 (patch) | |
tree | 2b50e06bbef1fba59deb4c5f33f88d1665d1ffcc /libvncauth | |
parent | 38cbc4b783f6935e2f2d0b2fa4395d9fe5c007a7 (diff) | |
download | libtdevnc-1342b7e1.tar.gz libtdevnc-1342b7e1.zip |
permanently moved authorization
Diffstat (limited to 'libvncauth')
-rw-r--r-- | libvncauth/Imakefile | 16 | ||||
-rw-r--r-- | libvncauth/Makefile | 9 | ||||
-rw-r--r-- | libvncauth/d3des.c | 440 | ||||
-rw-r--r-- | libvncauth/d3des.h | 51 | ||||
-rw-r--r-- | libvncauth/vncauth.c | 161 | ||||
-rw-r--r-- | libvncauth/vncauth.h | 30 |
6 files changed, 0 insertions, 707 deletions
diff --git a/libvncauth/Imakefile b/libvncauth/Imakefile deleted file mode 100644 index 2e100a6..0000000 --- a/libvncauth/Imakefile +++ /dev/null @@ -1,16 +0,0 @@ - -#ifdef SunArchitecture -CC = gcc -CCOPTIONS = -CDEBUGFLAGS = -O2 -#endif - -SRCS = vncauth.c d3des.c - -OBJS = vncauth.o d3des.o - -INCLUDES = -I. -I../include - -NormalLibraryTarget(vncauth,$(OBJS)) - -DependTarget() diff --git a/libvncauth/Makefile b/libvncauth/Makefile deleted file mode 100644 index 2781222..0000000 --- a/libvncauth/Makefile +++ /dev/null @@ -1,9 +0,0 @@ -OBJS=vncauth.o d3des.o - -CFLAGS=-I. - -all: libvncauth.a - -libvncauth.a: $(OBJS) - $(AR) clq $@ $(OBJS) - diff --git a/libvncauth/d3des.c b/libvncauth/d3des.c deleted file mode 100644 index 8a358ce..0000000 --- a/libvncauth/d3des.c +++ /dev/null @@ -1,440 +0,0 @@ -/* - * 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 "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 unsigned short 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; -int edf; -{ - register int 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 int 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 int 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 - **********************************************************************/ diff --git a/libvncauth/d3des.h b/libvncauth/d3des.h deleted file mode 100644 index ea3da44..0000000 --- a/libvncauth/d3des.h +++ /dev/null @@ -1,51 +0,0 @@ -/* - * 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 - ********************************************************************/ diff --git a/libvncauth/vncauth.c b/libvncauth/vncauth.c deleted file mode 100644 index b5d4283..0000000 --- a/libvncauth/vncauth.c +++ /dev/null @@ -1,161 +0,0 @@ -/* - * 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 <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <sys/types.h> -#include <sys/stat.h> -#include <vncauth.h> -#include <d3des.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. - */ - -int -vncEncryptAndStorePasswd(char *passwd, char *fname) -{ - FILE *fp; - int 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; - int 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) -{ - int i; - unsigned int seed = (unsigned int) 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]; - int 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); - } -} diff --git a/libvncauth/vncauth.h b/libvncauth/vncauth.h deleted file mode 100644 index 86dc455..0000000 --- a/libvncauth/vncauth.h +++ /dev/null @@ -1,30 +0,0 @@ -/* - * 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); |