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author | piaip <piaip@63ad8ddf-47c3-0310-b6dd-a9e9d9715204> | 2008-03-20 19:33:49 +0800 |
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committer | piaip <piaip@63ad8ddf-47c3-0310-b6dd-a9e9d9715204> | 2008-03-20 19:33:49 +0800 |
commit | 6c7b18b32d87c2a835f7e5c48faac4a8ad44668b (patch) | |
tree | e88e1b2b1007f4ddcd348a4a1bf1d13c515c4564 /mbbsd/crypt.c | |
parent | f59699c22c130373cda3cc4cb6fab5bae510bd5a (diff) | |
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- (internal/exp) first draft of new layoutpiaip.newlayout
git-svn-id: http://opensvn.csie.org/pttbbs/branches/piaip.newlayout@4013 63ad8ddf-47c3-0310-b6dd-a9e9d9715204
Diffstat (limited to 'mbbsd/crypt.c')
-rw-r--r-- | mbbsd/crypt.c | 647 |
1 files changed, 0 insertions, 647 deletions
diff --git a/mbbsd/crypt.c b/mbbsd/crypt.c deleted file mode 100644 index 7283c8a6..00000000 --- a/mbbsd/crypt.c +++ /dev/null @@ -1,647 +0,0 @@ -/* $Id */ -/* This file is crypt.c taken from ssh 1.2.33, only modified for compile */ -/** - * FreeBSD 及 Linux glibc 附的 crypt() 都會用到大 table 加速多次 crypt(). - * 但 bbs 僅上站檢查密碼時使用一次, 不值得為此花 100kb memory. (non-const memory) - * libdes 的 crypt() 僅需 4kb 的 constant lookup table. - * - * 不過要注意 libdes 4.01 的 license 跟 GPL 不合, 因此此處採用 ssh 1.2.33 裡頭 - * 附的 crypt.c derived from libdes 3.06, 該版的 libdes 是 GPL 的. - */ -#define PROTO -/* This file is fcrypt.c taken from SSLeay-0.4.3a. This file is only compiled - in on those systems that don't have crypt() in the system libraries. - //ylo */ - -/* fcrypt.c */ -/* Copyright (C) 1995 Eric Young (eay@mincom.oz.au). - * All rights reserved. - * Copyright remains Eric Young's, and as such any Copyright notices in - * the code are not to be removed. - * See the COPYRIGHT file in the libdes distribution for more details. - */ - -#include <stdio.h> -#define _LIBC - -/* Eric Young. - * This version of crypt has been developed from my MIT compatable - * DES library. - * The library is available at pub/Crypto/DES at ftp.psy.uq.oz.au - * eay@mincom.oz.au or eay@psych.psy.uq.oz.au - */ - -#if !defined(_LIBC) || defined(NOCONST) -#define const -#endif - -typedef unsigned char des_cblock[8]; - -typedef struct des_ks_struct - { - union { - des_cblock _; - /* make sure things are correct size on machines with - * 8 byte longs */ - unsigned long pad[2]; - } ks; -#define _ ks._ - } des_key_schedule[16]; - -#define DES_KEY_SZ (sizeof(des_cblock)) -#define DES_ENCRYPT 1 -#define DES_DECRYPT 0 - -#define ITERATIONS 16 -#define HALF_ITERATIONS 8 - -#define c2l(c,l) (l =((unsigned long)(*((c)++))) , \ - l|=((unsigned long)(*((c)++)))<< 8, \ - l|=((unsigned long)(*((c)++)))<<16, \ - l|=((unsigned long)(*((c)++)))<<24) - -#define l2c(l,c) (*((c)++)=(unsigned char)(((l) )&0xff), \ - *((c)++)=(unsigned char)(((l)>> 8)&0xff), \ - *((c)++)=(unsigned char)(((l)>>16)&0xff), \ - *((c)++)=(unsigned char)(((l)>>24)&0xff)) - -static const unsigned long SPtrans[8][64]={ -/* nibble 0 */ -{ -0x00820200, 0x00020000, 0x80800000, 0x80820200, -0x00800000, 0x80020200, 0x80020000, 0x80800000, -0x80020200, 0x00820200, 0x00820000, 0x80000200, -0x80800200, 0x00800000, 0x00000000, 0x80020000, -0x00020000, 0x80000000, 0x00800200, 0x00020200, -0x80820200, 0x00820000, 0x80000200, 0x00800200, -0x80000000, 0x00000200, 0x00020200, 0x80820000, -0x00000200, 0x80800200, 0x80820000, 0x00000000, -0x00000000, 0x80820200, 0x00800200, 0x80020000, -0x00820200, 0x00020000, 0x80000200, 0x00800200, -0x80820000, 0x00000200, 0x00020200, 0x80800000, -0x80020200, 0x80000000, 0x80800000, 0x00820000, -0x80820200, 0x00020200, 0x00820000, 0x80800200, -0x00800000, 0x80000200, 0x80020000, 0x00000000, -0x00020000, 0x00800000, 0x80800200, 0x00820200, -0x80000000, 0x80820000, 0x00000200, 0x80020200, -}, -/* nibble 1 */ -{ -0x10042004, 0x00000000, 0x00042000, 0x10040000, -0x10000004, 0x00002004, 0x10002000, 0x00042000, -0x00002000, 0x10040004, 0x00000004, 0x10002000, -0x00040004, 0x10042000, 0x10040000, 0x00000004, -0x00040000, 0x10002004, 0x10040004, 0x00002000, -0x00042004, 0x10000000, 0x00000000, 0x00040004, -0x10002004, 0x00042004, 0x10042000, 0x10000004, -0x10000000, 0x00040000, 0x00002004, 0x10042004, -0x00040004, 0x10042000, 0x10002000, 0x00042004, -0x10042004, 0x00040004, 0x10000004, 0x00000000, -0x10000000, 0x00002004, 0x00040000, 0x10040004, -0x00002000, 0x10000000, 0x00042004, 0x10002004, -0x10042000, 0x00002000, 0x00000000, 0x10000004, -0x00000004, 0x10042004, 0x00042000, 0x10040000, -0x10040004, 0x00040000, 0x00002004, 0x10002000, -0x10002004, 0x00000004, 0x10040000, 0x00042000, -}, -/* nibble 2 */ -{ -0x41000000, 0x01010040, 0x00000040, 0x41000040, -0x40010000, 0x01000000, 0x41000040, 0x00010040, -0x01000040, 0x00010000, 0x01010000, 0x40000000, -0x41010040, 0x40000040, 0x40000000, 0x41010000, -0x00000000, 0x40010000, 0x01010040, 0x00000040, -0x40000040, 0x41010040, 0x00010000, 0x41000000, -0x41010000, 0x01000040, 0x40010040, 0x01010000, -0x00010040, 0x00000000, 0x01000000, 0x40010040, -0x01010040, 0x00000040, 0x40000000, 0x00010000, -0x40000040, 0x40010000, 0x01010000, 0x41000040, -0x00000000, 0x01010040, 0x00010040, 0x41010000, -0x40010000, 0x01000000, 0x41010040, 0x40000000, -0x40010040, 0x41000000, 0x01000000, 0x41010040, -0x00010000, 0x01000040, 0x41000040, 0x00010040, -0x01000040, 0x00000000, 0x41010000, 0x40000040, -0x41000000, 0x40010040, 0x00000040, 0x01010000, -}, -/* nibble 3 */ -{ -0x00100402, 0x04000400, 0x00000002, 0x04100402, -0x00000000, 0x04100000, 0x04000402, 0x00100002, -0x04100400, 0x04000002, 0x04000000, 0x00000402, -0x04000002, 0x00100402, 0x00100000, 0x04000000, -0x04100002, 0x00100400, 0x00000400, 0x00000002, -0x00100400, 0x04000402, 0x04100000, 0x00000400, -0x00000402, 0x00000000, 0x00100002, 0x04100400, -0x04000400, 0x04100002, 0x04100402, 0x00100000, -0x04100002, 0x00000402, 0x00100000, 0x04000002, -0x00100400, 0x04000400, 0x00000002, 0x04100000, -0x04000402, 0x00000000, 0x00000400, 0x00100002, -0x00000000, 0x04100002, 0x04100400, 0x00000400, -0x04000000, 0x04100402, 0x00100402, 0x00100000, -0x04100402, 0x00000002, 0x04000400, 0x00100402, -0x00100002, 0x00100400, 0x04100000, 0x04000402, -0x00000402, 0x04000000, 0x04000002, 0x04100400, -}, -/* nibble 4 */ -{ -0x02000000, 0x00004000, 0x00000100, 0x02004108, -0x02004008, 0x02000100, 0x00004108, 0x02004000, -0x00004000, 0x00000008, 0x02000008, 0x00004100, -0x02000108, 0x02004008, 0x02004100, 0x00000000, -0x00004100, 0x02000000, 0x00004008, 0x00000108, -0x02000100, 0x00004108, 0x00000000, 0x02000008, -0x00000008, 0x02000108, 0x02004108, 0x00004008, -0x02004000, 0x00000100, 0x00000108, 0x02004100, -0x02004100, 0x02000108, 0x00004008, 0x02004000, -0x00004000, 0x00000008, 0x02000008, 0x02000100, -0x02000000, 0x00004100, 0x02004108, 0x00000000, -0x00004108, 0x02000000, 0x00000100, 0x00004008, -0x02000108, 0x00000100, 0x00000000, 0x02004108, -0x02004008, 0x02004100, 0x00000108, 0x00004000, -0x00004100, 0x02004008, 0x02000100, 0x00000108, -0x00000008, 0x00004108, 0x02004000, 0x02000008, -}, -/* nibble 5 */ -{ -0x20000010, 0x00080010, 0x00000000, 0x20080800, -0x00080010, 0x00000800, 0x20000810, 0x00080000, -0x00000810, 0x20080810, 0x00080800, 0x20000000, -0x20000800, 0x20000010, 0x20080000, 0x00080810, -0x00080000, 0x20000810, 0x20080010, 0x00000000, -0x00000800, 0x00000010, 0x20080800, 0x20080010, -0x20080810, 0x20080000, 0x20000000, 0x00000810, -0x00000010, 0x00080800, 0x00080810, 0x20000800, -0x00000810, 0x20000000, 0x20000800, 0x00080810, -0x20080800, 0x00080010, 0x00000000, 0x20000800, -0x20000000, 0x00000800, 0x20080010, 0x00080000, -0x00080010, 0x20080810, 0x00080800, 0x00000010, -0x20080810, 0x00080800, 0x00080000, 0x20000810, -0x20000010, 0x20080000, 0x00080810, 0x00000000, -0x00000800, 0x20000010, 0x20000810, 0x20080800, -0x20080000, 0x00000810, 0x00000010, 0x20080010, -}, -/* nibble 6 */ -{ -0x00001000, 0x00000080, 0x00400080, 0x00400001, -0x00401081, 0x00001001, 0x00001080, 0x00000000, -0x00400000, 0x00400081, 0x00000081, 0x00401000, -0x00000001, 0x00401080, 0x00401000, 0x00000081, -0x00400081, 0x00001000, 0x00001001, 0x00401081, -0x00000000, 0x00400080, 0x00400001, 0x00001080, -0x00401001, 0x00001081, 0x00401080, 0x00000001, -0x00001081, 0x00401001, 0x00000080, 0x00400000, -0x00001081, 0x00401000, 0x00401001, 0x00000081, -0x00001000, 0x00000080, 0x00400000, 0x00401001, -0x00400081, 0x00001081, 0x00001080, 0x00000000, -0x00000080, 0x00400001, 0x00000001, 0x00400080, -0x00000000, 0x00400081, 0x00400080, 0x00001080, -0x00000081, 0x00001000, 0x00401081, 0x00400000, -0x00401080, 0x00000001, 0x00001001, 0x00401081, -0x00400001, 0x00401080, 0x00401000, 0x00001001, -}, -/* nibble 7 */ -{ -0x08200020, 0x08208000, 0x00008020, 0x00000000, -0x08008000, 0x00200020, 0x08200000, 0x08208020, -0x00000020, 0x08000000, 0x00208000, 0x00008020, -0x00208020, 0x08008020, 0x08000020, 0x08200000, -0x00008000, 0x00208020, 0x00200020, 0x08008000, -0x08208020, 0x08000020, 0x00000000, 0x00208000, -0x08000000, 0x00200000, 0x08008020, 0x08200020, -0x00200000, 0x00008000, 0x08208000, 0x00000020, -0x00200000, 0x00008000, 0x08000020, 0x08208020, -0x00008020, 0x08000000, 0x00000000, 0x00208000, -0x08200020, 0x08008020, 0x08008000, 0x00200020, -0x08208000, 0x00000020, 0x00200020, 0x08008000, -0x08208020, 0x00200000, 0x08200000, 0x08000020, -0x00208000, 0x00008020, 0x08008020, 0x08200000, -0x00000020, 0x08208000, 0x00208020, 0x00000000, -0x08000000, 0x08200020, 0x00008000, 0x00208020}}; -static const unsigned long skb[8][64]={ -/* for C bits (numbered as per FIPS 46) 1 2 3 4 5 6 */ -{ -0x00000000,0x00000010,0x20000000,0x20000010, -0x00010000,0x00010010,0x20010000,0x20010010, -0x00000800,0x00000810,0x20000800,0x20000810, -0x00010800,0x00010810,0x20010800,0x20010810, -0x00000020,0x00000030,0x20000020,0x20000030, -0x00010020,0x00010030,0x20010020,0x20010030, -0x00000820,0x00000830,0x20000820,0x20000830, -0x00010820,0x00010830,0x20010820,0x20010830, -0x00080000,0x00080010,0x20080000,0x20080010, -0x00090000,0x00090010,0x20090000,0x20090010, -0x00080800,0x00080810,0x20080800,0x20080810, -0x00090800,0x00090810,0x20090800,0x20090810, -0x00080020,0x00080030,0x20080020,0x20080030, -0x00090020,0x00090030,0x20090020,0x20090030, -0x00080820,0x00080830,0x20080820,0x20080830, -0x00090820,0x00090830,0x20090820,0x20090830, -}, -/* for C bits (numbered as per FIPS 46) 7 8 10 11 12 13 */ -{ -0x00000000,0x02000000,0x00002000,0x02002000, -0x00200000,0x02200000,0x00202000,0x02202000, -0x00000004,0x02000004,0x00002004,0x02002004, -0x00200004,0x02200004,0x00202004,0x02202004, -0x00000400,0x02000400,0x00002400,0x02002400, -0x00200400,0x02200400,0x00202400,0x02202400, -0x00000404,0x02000404,0x00002404,0x02002404, -0x00200404,0x02200404,0x00202404,0x02202404, -0x10000000,0x12000000,0x10002000,0x12002000, -0x10200000,0x12200000,0x10202000,0x12202000, -0x10000004,0x12000004,0x10002004,0x12002004, -0x10200004,0x12200004,0x10202004,0x12202004, -0x10000400,0x12000400,0x10002400,0x12002400, -0x10200400,0x12200400,0x10202400,0x12202400, -0x10000404,0x12000404,0x10002404,0x12002404, -0x10200404,0x12200404,0x10202404,0x12202404, -}, -/* for C bits (numbered as per FIPS 46) 14 15 16 17 19 20 */ -{ -0x00000000,0x00000001,0x00040000,0x00040001, -0x01000000,0x01000001,0x01040000,0x01040001, -0x00000002,0x00000003,0x00040002,0x00040003, -0x01000002,0x01000003,0x01040002,0x01040003, -0x00000200,0x00000201,0x00040200,0x00040201, -0x01000200,0x01000201,0x01040200,0x01040201, -0x00000202,0x00000203,0x00040202,0x00040203, -0x01000202,0x01000203,0x01040202,0x01040203, -0x08000000,0x08000001,0x08040000,0x08040001, -0x09000000,0x09000001,0x09040000,0x09040001, -0x08000002,0x08000003,0x08040002,0x08040003, -0x09000002,0x09000003,0x09040002,0x09040003, -0x08000200,0x08000201,0x08040200,0x08040201, -0x09000200,0x09000201,0x09040200,0x09040201, -0x08000202,0x08000203,0x08040202,0x08040203, -0x09000202,0x09000203,0x09040202,0x09040203, -}, -/* for C bits (numbered as per FIPS 46) 21 23 24 26 27 28 */ -{ -0x00000000,0x00100000,0x00000100,0x00100100, -0x00000008,0x00100008,0x00000108,0x00100108, -0x00001000,0x00101000,0x00001100,0x00101100, -0x00001008,0x00101008,0x00001108,0x00101108, -0x04000000,0x04100000,0x04000100,0x04100100, -0x04000008,0x04100008,0x04000108,0x04100108, -0x04001000,0x04101000,0x04001100,0x04101100, -0x04001008,0x04101008,0x04001108,0x04101108, -0x00020000,0x00120000,0x00020100,0x00120100, -0x00020008,0x00120008,0x00020108,0x00120108, -0x00021000,0x00121000,0x00021100,0x00121100, -0x00021008,0x00121008,0x00021108,0x00121108, -0x04020000,0x04120000,0x04020100,0x04120100, -0x04020008,0x04120008,0x04020108,0x04120108, -0x04021000,0x04121000,0x04021100,0x04121100, -0x04021008,0x04121008,0x04021108,0x04121108, -}, -/* for D bits (numbered as per FIPS 46) 1 2 3 4 5 6 */ -{ -0x00000000,0x10000000,0x00010000,0x10010000, -0x00000004,0x10000004,0x00010004,0x10010004, -0x20000000,0x30000000,0x20010000,0x30010000, -0x20000004,0x30000004,0x20010004,0x30010004, -0x00100000,0x10100000,0x00110000,0x10110000, -0x00100004,0x10100004,0x00110004,0x10110004, -0x20100000,0x30100000,0x20110000,0x30110000, -0x20100004,0x30100004,0x20110004,0x30110004, -0x00001000,0x10001000,0x00011000,0x10011000, -0x00001004,0x10001004,0x00011004,0x10011004, -0x20001000,0x30001000,0x20011000,0x30011000, -0x20001004,0x30001004,0x20011004,0x30011004, -0x00101000,0x10101000,0x00111000,0x10111000, -0x00101004,0x10101004,0x00111004,0x10111004, -0x20101000,0x30101000,0x20111000,0x30111000, -0x20101004,0x30101004,0x20111004,0x30111004, -}, -/* for D bits (numbered as per FIPS 46) 8 9 11 12 13 14 */ -{ -0x00000000,0x08000000,0x00000008,0x08000008, -0x00000400,0x08000400,0x00000408,0x08000408, -0x00020000,0x08020000,0x00020008,0x08020008, -0x00020400,0x08020400,0x00020408,0x08020408, -0x00000001,0x08000001,0x00000009,0x08000009, -0x00000401,0x08000401,0x00000409,0x08000409, -0x00020001,0x08020001,0x00020009,0x08020009, -0x00020401,0x08020401,0x00020409,0x08020409, -0x02000000,0x0A000000,0x02000008,0x0A000008, -0x02000400,0x0A000400,0x02000408,0x0A000408, -0x02020000,0x0A020000,0x02020008,0x0A020008, -0x02020400,0x0A020400,0x02020408,0x0A020408, -0x02000001,0x0A000001,0x02000009,0x0A000009, -0x02000401,0x0A000401,0x02000409,0x0A000409, -0x02020001,0x0A020001,0x02020009,0x0A020009, -0x02020401,0x0A020401,0x02020409,0x0A020409, -}, -/* for D bits (numbered as per FIPS 46) 16 17 18 19 20 21 */ -{ -0x00000000,0x00000100,0x00080000,0x00080100, -0x01000000,0x01000100,0x01080000,0x01080100, -0x00000010,0x00000110,0x00080010,0x00080110, -0x01000010,0x01000110,0x01080010,0x01080110, -0x00200000,0x00200100,0x00280000,0x00280100, -0x01200000,0x01200100,0x01280000,0x01280100, -0x00200010,0x00200110,0x00280010,0x00280110, -0x01200010,0x01200110,0x01280010,0x01280110, -0x00000200,0x00000300,0x00080200,0x00080300, -0x01000200,0x01000300,0x01080200,0x01080300, -0x00000210,0x00000310,0x00080210,0x00080310, -0x01000210,0x01000310,0x01080210,0x01080310, -0x00200200,0x00200300,0x00280200,0x00280300, -0x01200200,0x01200300,0x01280200,0x01280300, -0x00200210,0x00200310,0x00280210,0x00280310, -0x01200210,0x01200310,0x01280210,0x01280310, -}, -/* for D bits (numbered as per FIPS 46) 22 23 24 25 27 28 */ -{ -0x00000000,0x04000000,0x00040000,0x04040000, -0x00000002,0x04000002,0x00040002,0x04040002, -0x00002000,0x04002000,0x00042000,0x04042000, -0x00002002,0x04002002,0x00042002,0x04042002, -0x00000020,0x04000020,0x00040020,0x04040020, -0x00000022,0x04000022,0x00040022,0x04040022, -0x00002020,0x04002020,0x00042020,0x04042020, -0x00002022,0x04002022,0x00042022,0x04042022, -0x00000800,0x04000800,0x00040800,0x04040800, -0x00000802,0x04000802,0x00040802,0x04040802, -0x00002800,0x04002800,0x00042800,0x04042800, -0x00002802,0x04002802,0x00042802,0x04042802, -0x00000820,0x04000820,0x00040820,0x04040820, -0x00000822,0x04000822,0x00040822,0x04040822, -0x00002820,0x04002820,0x00042820,0x04042820, -0x00002822,0x04002822,0x00042822,0x04042822, -} -}; - -/* See ecb_encrypt.c for a pseudo description of these macros. */ -#define PERM_OP(a,b,t,n,m) ((t)=((((a)>>(n))^(b))&(m)),\ - (b)^=(t),\ - (a)^=((t)<<(n))) - -#define HPERM_OP(a,t,n,m) ((t)=((((a)<<(16-(n)))^(a))&(m)),\ - (a)=(a)^(t)^(t>>(16-(n))))\ - -static const char shifts2[16]={0,0,1,1,1,1,1,1,0,1,1,1,1,1,1,0}; - -#ifdef PROTO -static int body(unsigned long *out0, unsigned long *out1, des_key_schedule ks, unsigned long Eswap0, unsigned long Eswap1); -static int des_set_key(des_cblock (*key), struct des_ks_struct *schedule); -#else -static int body(); -static int des_set_key(); -#endif - -static int des_set_key(key, schedule) -des_cblock (*key); -struct des_ks_struct *schedule; - { - register unsigned long c,d,t,s; - register unsigned char *in; - register unsigned long *k; - register int i; - - k=(unsigned long *)schedule; - in=(unsigned char *)key; - - c2l(in,c); - c2l(in,d); - - /* I now do it in 47 simple operations :-) - * Thanks to John Fletcher (john_fletcher@lccmail.ocf.llnl.gov) - * for the inspiration. :-) */ - PERM_OP (d,c,t,4,0x0f0f0f0f); - HPERM_OP(c,t,-2,0xcccc0000); - HPERM_OP(d,t,-2,0xcccc0000); - PERM_OP (d,c,t,1,0x55555555); - PERM_OP (c,d,t,8,0x00ff00ff); - PERM_OP (d,c,t,1,0x55555555); - d= (((d&0x000000ff)<<16)| (d&0x0000ff00) | - ((d&0x00ff0000)>>16)|((c&0xf0000000)>>4)); - c&=0x0fffffff; - - for (i=0; i<ITERATIONS; i++) - { - if (shifts2[i]) - { c=((c>>2)|(c<<26)); d=((d>>2)|(d<<26)); } - else - { c=((c>>1)|(c<<27)); d=((d>>1)|(d<<27)); } - c&=0x0fffffff; - d&=0x0fffffff; - /* could be a few less shifts but I am to lazy at this - * point in time to investigate */ - s= skb[0][ (c )&0x3f ]| - skb[1][((c>> 6)&0x03)|((c>> 7)&0x3c)]| - skb[2][((c>>13)&0x0f)|((c>>14)&0x30)]| - skb[3][((c>>20)&0x01)|((c>>21)&0x06) | - ((c>>22)&0x38)]; - t= skb[4][ (d )&0x3f ]| - skb[5][((d>> 7)&0x03)|((d>> 8)&0x3c)]| - skb[6][ (d>>15)&0x3f ]| - skb[7][((d>>21)&0x0f)|((d>>22)&0x30)]; - - /* table contained 0213 4657 */ - *(k++)=((t<<16)|(s&0x0000ffff))&0xffffffff; - s= ((s>>16)|(t&0xffff0000)); - - s=(s<<4)|(s>>28); - *(k++)=s&0xffffffff; - } - return(0); - } - -/****************************************************************** - * modified stuff for crypt. - ******************************************************************/ - -/* The changes to this macro may help or hinder, depending on the - * compiler and the achitecture. gcc2 always seems to do well :-). - * Inspired by Dana How <how@isl.stanford.edu> - * DO NOT use the alternative version on machines with 8 byte longs. - */ -#ifdef ALT_ECB -#define D_ENCRYPT(L,R,S) \ - t=(R^(R>>16)); \ - u=(t&E0); \ - t=(t&E1); \ - u=((u^(u<<16))^R^s[S ])<<2; \ - t=(t^(t<<16))^R^s[S+1]; \ - t=(t>>2)|(t<<30); \ - L^= \ - *(unsigned long *)(des_SP+0x0100+((t )&0xfc))+ \ - *(unsigned long *)(des_SP+0x0300+((t>> 8)&0xfc))+ \ - *(unsigned long *)(des_SP+0x0500+((t>>16)&0xfc))+ \ - *(unsigned long *)(des_SP+0x0700+((t>>24)&0xfc))+ \ - *(unsigned long *)(des_SP+ ((u )&0xfc))+ \ - *(unsigned long *)(des_SP+0x0200+((u>> 8)&0xfc))+ \ - *(unsigned long *)(des_SP+0x0400+((u>>16)&0xfc))+ \ - *(unsigned long *)(des_SP+0x0600+((u>>24)&0xfc)); -#else /* original version */ -#define D_ENCRYPT(L,R,S) \ - t=(R^(R>>16)); \ - u=(t&E0); \ - t=(t&E1); \ - u=(u^(u<<16))^R^s[S ]; \ - t=(t^(t<<16))^R^s[S+1]; \ - t=(t>>4)|(t<<28); \ - L^= SPtrans[1][(t )&0x3f]| \ - SPtrans[3][(t>> 8)&0x3f]| \ - SPtrans[5][(t>>16)&0x3f]| \ - SPtrans[7][(t>>24)&0x3f]| \ - SPtrans[0][(u )&0x3f]| \ - SPtrans[2][(u>> 8)&0x3f]| \ - SPtrans[4][(u>>16)&0x3f]| \ - SPtrans[6][(u>>24)&0x3f]; -#endif - -static unsigned const char con_salt[128]={ -0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, -0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, -0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, -0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, -0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, -0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01, -0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09, -0x0A,0x0B,0x05,0x06,0x07,0x08,0x09,0x0A, -0x0B,0x0C,0x0D,0x0E,0x0F,0x10,0x11,0x12, -0x13,0x14,0x15,0x16,0x17,0x18,0x19,0x1A, -0x1B,0x1C,0x1D,0x1E,0x1F,0x20,0x21,0x22, -0x23,0x24,0x25,0x20,0x21,0x22,0x23,0x24, -0x25,0x26,0x27,0x28,0x29,0x2A,0x2B,0x2C, -0x2D,0x2E,0x2F,0x30,0x31,0x32,0x33,0x34, -0x35,0x36,0x37,0x38,0x39,0x3A,0x3B,0x3C, -0x3D,0x3E,0x3F,0x00,0x00,0x00,0x00,0x00, -}; - -static unsigned const char cov_2char[64]={ -0x2E,0x2F,0x30,0x31,0x32,0x33,0x34,0x35, -0x36,0x37,0x38,0x39,0x41,0x42,0x43,0x44, -0x45,0x46,0x47,0x48,0x49,0x4A,0x4B,0x4C, -0x4D,0x4E,0x4F,0x50,0x51,0x52,0x53,0x54, -0x55,0x56,0x57,0x58,0x59,0x5A,0x61,0x62, -0x63,0x64,0x65,0x66,0x67,0x68,0x69,0x6A, -0x6B,0x6C,0x6D,0x6E,0x6F,0x70,0x71,0x72, -0x73,0x74,0x75,0x76,0x77,0x78,0x79,0x7A -}; - -#ifdef PERL5 -char *des_crypt(buf,salt) -#else -char *crypt(buf, salt) -char *buf; -char *salt; - - -#endif - - - { - unsigned int i,j,x,y; - unsigned long Eswap0=0,Eswap1=0; - unsigned long out[2],ll; - des_cblock key; - des_key_schedule ks; - static unsigned char buff[20]; - unsigned char bb[9]; - unsigned char *b=bb; - unsigned char c,u; - - /* eay 25/08/92 - * If you call crypt("pwd","*") as often happens when you - * have * as the pwd field in /etc/passwd, the function - * returns *\0XXXXXXXXX - * The \0 makes the string look like * so the pwd "*" would - * crypt to "*". This was found when replacing the crypt in - * our shared libraries. People found that the disbled - * accounts effectivly had no passwd :-(. */ - x=buff[0]=((salt[0] == '\0')?'A':salt[0]); - Eswap0=con_salt[x]; - x=buff[1]=((salt[1] == '\0')?'A':salt[1]); - Eswap1=con_salt[x]<<4; - - for (i=0; i<8; i++) - { - c= *(buf++); - if (!c) break; - key[i]=(c<<1); - } - for (; i<8; i++) - key[i]=0; - - des_set_key((des_cblock *)(key),ks); - body(&(out[0]),&(out[1]),ks,Eswap0,Eswap1); - - ll=out[0]; l2c(ll,b); - ll=out[1]; l2c(ll,b); - y=0; - u=0x80; - bb[8]=0; - for (i=2; i<13; i++) - { - c=0; - for (j=0; j<6; j++) - { - c<<=1; - if (bb[y] & u) c|=1; - u>>=1; - if (!u) - { - y++; - u=0x80; - } - } - buff[i]=cov_2char[c]; - } - buff[13]='\0'; - return((char *)buff); - } - -static int body(out0, out1, ks, Eswap0, Eswap1) -unsigned long *out0; -unsigned long *out1; -des_key_schedule ks; -unsigned long Eswap0; -unsigned long Eswap1; - { - register unsigned long l,r,t,u; -#ifdef ALT_ECB - register unsigned char *des_SP=(unsigned char *)SPtrans; -#endif - register unsigned long *s; - register int i,j; - register unsigned long E0,E1; - - l=0; - r=0; - - s=(unsigned long *)ks; - E0=Eswap0; - E1=Eswap1; - - for (j=0; j<25; j++) - { - for (i=0; i<(ITERATIONS*2); i+=4) - { - D_ENCRYPT(l,r, i); /* 1 */ - D_ENCRYPT(r,l, i+2); /* 2 */ - } - t=l; - l=r; - r=t; - } - t=r; - r=(l>>1)|(l<<31); - l=(t>>1)|(t<<31); - /* clear the top bits on machines with 8byte longs */ - l&=0xffffffff; - r&=0xffffffff; - - PERM_OP(r,l,t, 1,0x55555555); - PERM_OP(l,r,t, 8,0x00ff00ff); - PERM_OP(r,l,t, 2,0x33333333); - PERM_OP(l,r,t,16,0x0000ffff); - PERM_OP(r,l,t, 4,0x0f0f0f0f); - - *out0=l; - *out1=r; - return(0); - } - |