1#ifdef HAVE_CONFIG_H 2#include "config.h" 3 4/* 5 if (we have termios.h) 6 define TERMIOS 7 else if (we have termio.h) 8 define TERMIO 9*/ 10#ifdef HAVE_TERMIOS_H 11 12#define TERMIOS 13 14#else /* !HAVE_TERMIOS_H */ 15 16#ifdef HAVE_TERMIO_H 17#define TERMIO 18#endif 19 20#endif /* !HAVE_TERMIOS_H */ 21 22#endif /* HAVE_CONFIG_H */ 23 24/* crypto/des/des_locl.h */ 25/* Copyright (C) 1995-1997 Eric Young (eay@mincom.oz.au) 26 * All rights reserved. 27 * 28 * This package is an SSL implementation written 29 * by Eric Young (eay@mincom.oz.au). 30 * The implementation was written so as to conform with Netscapes SSL. 31 * 32 * This library is free for commercial and non-commercial use as long as 33 * the following conditions are aheared to. The following conditions 34 * apply to all code found in this distribution, be it the RC4, RSA, 35 * lhash, DES, etc., code; not just the SSL code. The SSL documentation 36 * included with this distribution is covered by the same copyright terms 37 * except that the holder is Tim Hudson (tjh@mincom.oz.au). 38 * 39 * Copyright remains Eric Young's, and as such any Copyright notices in 40 * the code are not to be removed. 41 * If this package is used in a product, Eric Young should be given attribution 42 * as the author of the parts of the library used. 43 * This can be in the form of a textual message at program startup or 44 * in documentation (online or textual) provided with the package. 45 * 46 * Redistribution and use in source and binary forms, with or without 47 * modification, are permitted provided that the following conditions 48 * are met: 49 * 1. Redistributions of source code must retain the copyright 50 * notice, this list of conditions and the following disclaimer. 51 * 2. Redistributions in binary form must reproduce the above copyright 52 * notice, this list of conditions and the following disclaimer in the 53 * documentation and/or other materials provided with the distribution. 54 * 3. All advertising materials mentioning features or use of this software 55 * must display the following acknowledgement: 56 * "This product includes cryptographic software written by 57 * Eric Young (eay@mincom.oz.au)" 58 * The word 'cryptographic' can be left out if the rouines from the library 59 * being used are not cryptographic related :-). 60 * 4. If you include any Windows specific code (or a derivative thereof) from 61 * the apps directory (application code) you must include an acknowledgement: 62 * "This product includes software written by Tim Hudson (tjh@mincom.oz.au)" 63 * 64 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 65 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 66 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 67 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 68 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 69 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 70 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 71 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 72 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 73 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 74 * SUCH DAMAGE. 75 * 76 * The licence and distribution terms for any publically available version or 77 * derivative of this code cannot be changed. i.e. this code cannot simply be 78 * copied and put under another distribution licence 79 * [including the GNU Public Licence.] 80 */ 81 82/* WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING 83 * 84 * Always modify des_locl.org since des_locl.h is automatically generated from 85 * it during SSLeay configuration. 86 * 87 * WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING 88 */ 89 90#ifndef HEADER_DES_LOCL_H 91#define HEADER_DES_LOCL_H 92 93#if defined(WIN32) || defined(WIN16) 94#ifndef MSDOS 95#define MSDOS 96#endif 97#endif 98 99#include <stdio.h> 100#include <stdlib.h> 101#ifdef HAVE_UNISTD_H 102#include <unistd.h> 103#endif 104#ifdef HAVE_IO_H 105#include <io.h> 106#endif 107#include "des.h" 108 109#ifndef DES_DEFAULT_OPTIONS 110/* the following is tweaked from a config script, that is why it is a 111 * protected undef/define */ 112#ifndef DES_PTR 113#undef DES_PTR 114#endif 115 116/* This helps C compiler generate the correct code for multiple functional 117 * units. It reduces register dependancies at the expense of 2 more 118 * registers */ 119#ifndef DES_RISC1 120#undef DES_RISC1 121#endif 122 123#ifndef DES_RISC2 124#undef DES_RISC2 125#endif 126 127#if defined(DES_RISC1) && defined(DES_RISC2) 128YOU SHOULD NOT HAVE BOTH DES_RISC1 AND DES_RISC2 DEFINED!!!!! 129#endif 130 131/* Unroll the inner loop, this sometimes helps, sometimes hinders. 132 * Very mucy CPU dependant */ 133#ifndef DES_UNROLL 134#undef DES_UNROLL 135#endif 136 137/* These default values were supplied by 138 * Peter Gutman <pgut001@cs.auckland.ac.nz> 139 * They are only used if nothing else has been defined */ 140#if !defined(DES_PTR) && !defined(DES_RISC1) && !defined(DES_RISC2) && !defined(DES_UNROLL) 141/* Special defines which change the way the code is built depending on the 142 CPU and OS. For SGI machines you can use _MIPS_SZLONG (32 or 64) to find 143 even newer MIPS CPU's, but at the moment one size fits all for 144 optimization options. Older Sparc's work better with only UNROLL, but 145 there's no way to tell at compile time what it is you're running on */ 146 147#if defined( sun ) /* Newer Sparc's */ 148 #define DES_PTR 149 #define DES_RISC1 150 #define DES_UNROLL 151#elif defined( __ultrix ) /* Older MIPS */ 152 #define DES_PTR 153 #define DES_RISC2 154 #define DES_UNROLL 155#elif defined( __osf1__ ) /* Alpha */ 156 #define DES_PTR 157 #define DES_RISC2 158#elif defined ( _AIX ) /* RS6000 */ 159 /* Unknown */ 160#elif defined( __hpux ) /* HP-PA */ 161 #define DES_UNROLL 162#elif defined( __aux ) /* 68K */ 163 /* Unknown */ 164#elif defined( __dgux ) /* 88K (but P6 in latest boxes) */ 165 #define DES_UNROLL 166#elif defined( __sgi ) /* Newer MIPS */ 167 #define DES_PTR 168 #define DES_RISC2 169 #define DES_UNROLL 170#elif defined( i386 ) /* x86 boxes, should be gcc */ 171 #define DES_PTR 172 #define DES_RISC1 173 #define DES_UNROLL 174#endif /* Systems-specific speed defines */ 175#endif 176 177#endif /* DES_DEFAULT_OPTIONS */ 178 179#ifdef MSDOS /* Visual C++ 2.1 (Windows NT/95) */ 180#include <stdlib.h> 181#include <errno.h> 182#include <time.h> 183#include <io.h> 184#ifndef RAND 185#define RAND 186#endif 187#undef NOPROTO 188#endif 189 190#if defined(__STDC__) || defined(VMS) || defined(M_XENIX) || defined(MSDOS) || defined(WIN32) 191#include <string.h> 192#endif 193 194#ifndef RAND 195#define RAND 196#endif 197 198#ifdef linux 199#undef RAND 200#endif 201 202#ifdef MSDOS 203#define getpid() 2 204#define RAND 205#undef NOPROTO 206#endif 207 208#if defined(NOCONST) 209#define const 210#endif 211 212#ifdef __STDC__ 213#undef NOPROTO 214#endif 215 216#ifdef RAND 217#define srandom(s) srand(s) 218#define random rand 219#endif 220 221#define ITERATIONS 16 222#define HALF_ITERATIONS 8 223 224/* used in des_read and des_write */ 225#define MAXWRITE (1024*16) 226#define BSIZE (MAXWRITE+4) 227 228#define c2l(c,l) (l =((DES_LONG)(*((c)++))) , \ 229 l|=((DES_LONG)(*((c)++)))<< 8L, \ 230 l|=((DES_LONG)(*((c)++)))<<16L, \ 231 l|=((DES_LONG)(*((c)++)))<<24L) 232 233/* NOTE - c is not incremented as per c2l */ 234#define c2ln(c,l1,l2,n) { \ 235 c+=n; \ 236 l1=l2=0; \ 237 switch (n) { \ 238 case 8: l2 =((DES_LONG)(*(--(c))))<<24L; \ 239 case 7: l2|=((DES_LONG)(*(--(c))))<<16L; \ 240 case 6: l2|=((DES_LONG)(*(--(c))))<< 8L; \ 241 case 5: l2|=((DES_LONG)(*(--(c)))); \ 242 case 4: l1 =((DES_LONG)(*(--(c))))<<24L; \ 243 case 3: l1|=((DES_LONG)(*(--(c))))<<16L; \ 244 case 2: l1|=((DES_LONG)(*(--(c))))<< 8L; \ 245 case 1: l1|=((DES_LONG)(*(--(c)))); \ 246 } \ 247 } 248 249#define l2c(l,c) (*((c)++)=(unsigned char)(((l) )&0xff), \ 250 *((c)++)=(unsigned char)(((l)>> 8L)&0xff), \ 251 *((c)++)=(unsigned char)(((l)>>16L)&0xff), \ 252 *((c)++)=(unsigned char)(((l)>>24L)&0xff)) 253 254/* replacements for htonl and ntohl since I have no idea what to do 255 * when faced with machines with 8 byte longs. */ 256#define HDRSIZE 4 257 258#define n2l(c,l) (l =((DES_LONG)(*((c)++)))<<24L, \ 259 l|=((DES_LONG)(*((c)++)))<<16L, \ 260 l|=((DES_LONG)(*((c)++)))<< 8L, \ 261 l|=((DES_LONG)(*((c)++)))) 262 263#define l2n(l,c) (*((c)++)=(unsigned char)(((l)>>24L)&0xff), \ 264 *((c)++)=(unsigned char)(((l)>>16L)&0xff), \ 265 *((c)++)=(unsigned char)(((l)>> 8L)&0xff), \ 266 *((c)++)=(unsigned char)(((l) )&0xff)) 267 268/* NOTE - c is not incremented as per l2c */ 269#define l2cn(l1,l2,c,n) { \ 270 c+=n; \ 271 switch (n) { \ 272 case 8: *(--(c))=(unsigned char)(((l2)>>24L)&0xff); \ 273 case 7: *(--(c))=(unsigned char)(((l2)>>16L)&0xff); \ 274 case 6: *(--(c))=(unsigned char)(((l2)>> 8L)&0xff); \ 275 case 5: *(--(c))=(unsigned char)(((l2) )&0xff); \ 276 case 4: *(--(c))=(unsigned char)(((l1)>>24L)&0xff); \ 277 case 3: *(--(c))=(unsigned char)(((l1)>>16L)&0xff); \ 278 case 2: *(--(c))=(unsigned char)(((l1)>> 8L)&0xff); \ 279 case 1: *(--(c))=(unsigned char)(((l1) )&0xff); \ 280 } \ 281 } 282 283#if defined(WIN32) 284#define ROTATE(a,n) (_lrotr(a,n)) 285#else 286#define ROTATE(a,n) (((a)>>(n))+((a)<<(32-(n)))) 287#endif 288 289/* Don't worry about the LOAD_DATA() stuff, that is used by 290 * fcrypt() to add it's little bit to the front */ 291 292#ifdef DES_FCRYPT 293 294#define LOAD_DATA_tmp(R,S,u,t,E0,E1) \ 295 { DES_LONG tmp; LOAD_DATA(R,S,u,t,E0,E1,tmp); } 296 297#define LOAD_DATA(R,S,u,t,E0,E1,tmp) \ 298 t=R^(R>>16L); \ 299 u=t&E0; t&=E1; \ 300 tmp=(u<<16); u^=R^s[S ]; u^=tmp; \ 301 tmp=(t<<16); t^=R^s[S+1]; t^=tmp 302#else 303#define LOAD_DATA_tmp(a,b,c,d,e,f) LOAD_DATA(a,b,c,d,e,f,g) 304#define LOAD_DATA(R,S,u,t,E0,E1,tmp) \ 305 u=R^s[S ]; \ 306 t=R^s[S+1] 307#endif 308 309/* The changes to this macro may help or hinder, depending on the 310 * compiler and the achitecture. gcc2 always seems to do well :-). 311 * Inspired by Dana How <how@isl.stanford.edu> 312 * DO NOT use the alternative version on machines with 8 byte longs. 313 * It does not seem to work on the Alpha, even when DES_LONG is 4 314 * bytes, probably an issue of accessing non-word aligned objects :-( */ 315#ifdef DES_PTR 316 317/* It recently occured to me that 0^0^0^0^0^0^0 == 0, so there 318 * is no reason to not xor all the sub items together. This potentially 319 * saves a register since things can be xored directly into L */ 320 321#if defined(DES_RISC1) || defined(DES_RISC2) 322#ifdef DES_RISC1 323#define D_ENCRYPT(LL,R,S) { \ 324 unsigned int u1,u2,u3; \ 325 LOAD_DATA(R,S,u,t,E0,E1,u1); \ 326 u2=(int)u>>8L; \ 327 u1=(int)u&0xfc; \ 328 u2&=0xfc; \ 329 t=ROTATE(t,4); \ 330 u>>=16L; \ 331 LL^= *(DES_LONG *)((unsigned char *)des_SP +u1); \ 332 LL^= *(DES_LONG *)((unsigned char *)des_SP+0x200+u2); \ 333 u3=(int)(u>>8L); \ 334 u1=(int)u&0xfc; \ 335 u3&=0xfc; \ 336 LL^= *(DES_LONG *)((unsigned char *)des_SP+0x400+u1); \ 337 LL^= *(DES_LONG *)((unsigned char *)des_SP+0x600+u3); \ 338 u2=(int)t>>8L; \ 339 u1=(int)t&0xfc; \ 340 u2&=0xfc; \ 341 t>>=16L; \ 342 LL^= *(DES_LONG *)((unsigned char *)des_SP+0x100+u1); \ 343 LL^= *(DES_LONG *)((unsigned char *)des_SP+0x300+u2); \ 344 u3=(int)t>>8L; \ 345 u1=(int)t&0xfc; \ 346 u3&=0xfc; \ 347 LL^= *(DES_LONG *)((unsigned char *)des_SP+0x500+u1); \ 348 LL^= *(DES_LONG *)((unsigned char *)des_SP+0x700+u3); } 349#endif 350#ifdef DES_RISC2 351#define D_ENCRYPT(LL,R,S) { \ 352 unsigned int u1,u2,s1,s2; \ 353 LOAD_DATA(R,S,u,t,E0,E1,u1); \ 354 u2=(int)u>>8L; \ 355 u1=(int)u&0xfc; \ 356 u2&=0xfc; \ 357 t=ROTATE(t,4); \ 358 LL^= *(DES_LONG *)((unsigned char *)des_SP +u1); \ 359 LL^= *(DES_LONG *)((unsigned char *)des_SP+0x200+u2); \ 360 s1=(int)(u>>16L); \ 361 s2=(int)(u>>24L); \ 362 s1&=0xfc; \ 363 s2&=0xfc; \ 364 LL^= *(DES_LONG *)((unsigned char *)des_SP+0x400+s1); \ 365 LL^= *(DES_LONG *)((unsigned char *)des_SP+0x600+s2); \ 366 u2=(int)t>>8L; \ 367 u1=(int)t&0xfc; \ 368 u2&=0xfc; \ 369 LL^= *(DES_LONG *)((unsigned char *)des_SP+0x100+u1); \ 370 LL^= *(DES_LONG *)((unsigned char *)des_SP+0x300+u2); \ 371 s1=(int)(t>>16L); \ 372 s2=(int)(t>>24L); \ 373 s1&=0xfc; \ 374 s2&=0xfc; \ 375 LL^= *(DES_LONG *)((unsigned char *)des_SP+0x500+s1); \ 376 LL^= *(DES_LONG *)((unsigned char *)des_SP+0x700+s2); } 377#endif 378#else 379#define D_ENCRYPT(LL,R,S) { \ 380 LOAD_DATA_tmp(R,S,u,t,E0,E1); \ 381 t=ROTATE(t,4); \ 382 LL^= \ 383 *(DES_LONG *)((unsigned char *)des_SP +((u )&0xfc))^ \ 384 *(DES_LONG *)((unsigned char *)des_SP+0x200+((u>> 8L)&0xfc))^ \ 385 *(DES_LONG *)((unsigned char *)des_SP+0x400+((u>>16L)&0xfc))^ \ 386 *(DES_LONG *)((unsigned char *)des_SP+0x600+((u>>24L)&0xfc))^ \ 387 *(DES_LONG *)((unsigned char *)des_SP+0x100+((t )&0xfc))^ \ 388 *(DES_LONG *)((unsigned char *)des_SP+0x300+((t>> 8L)&0xfc))^ \ 389 *(DES_LONG *)((unsigned char *)des_SP+0x500+((t>>16L)&0xfc))^ \ 390 *(DES_LONG *)((unsigned char *)des_SP+0x700+((t>>24L)&0xfc)); } 391#endif 392 393#else /* original version */ 394 395#if defined(DES_RISC1) || defined(DES_RISC2) 396#ifdef DES_RISC1 397#define D_ENCRYPT(LL,R,S) {\ 398 unsigned int u1,u2,u3; \ 399 LOAD_DATA(R,S,u,t,E0,E1,u1); \ 400 u>>=2L; \ 401 t=ROTATE(t,6); \ 402 u2=(int)u>>8L; \ 403 u1=(int)u&0x3f; \ 404 u2&=0x3f; \ 405 u>>=16L; \ 406 LL^=des_SPtrans[0][u1]; \ 407 LL^=des_SPtrans[2][u2]; \ 408 u3=(int)u>>8L; \ 409 u1=(int)u&0x3f; \ 410 u3&=0x3f; \ 411 LL^=des_SPtrans[4][u1]; \ 412 LL^=des_SPtrans[6][u3]; \ 413 u2=(int)t>>8L; \ 414 u1=(int)t&0x3f; \ 415 u2&=0x3f; \ 416 t>>=16L; \ 417 LL^=des_SPtrans[1][u1]; \ 418 LL^=des_SPtrans[3][u2]; \ 419 u3=(int)t>>8L; \ 420 u1=(int)t&0x3f; \ 421 u3&=0x3f; \ 422 LL^=des_SPtrans[5][u1]; \ 423 LL^=des_SPtrans[7][u3]; } 424#endif 425#ifdef DES_RISC2 426#define D_ENCRYPT(LL,R,S) {\ 427 unsigned int u1,u2,s1,s2; \ 428 LOAD_DATA(R,S,u,t,E0,E1,u1); \ 429 u>>=2L; \ 430 t=ROTATE(t,6); \ 431 u2=(int)u>>8L; \ 432 u1=(int)u&0x3f; \ 433 u2&=0x3f; \ 434 LL^=des_SPtrans[0][u1]; \ 435 LL^=des_SPtrans[2][u2]; \ 436 s1=(int)u>>16L; \ 437 s2=(int)u>>24L; \ 438 s1&=0x3f; \ 439 s2&=0x3f; \ 440 LL^=des_SPtrans[4][s1]; \ 441 LL^=des_SPtrans[6][s2]; \ 442 u2=(int)t>>8L; \ 443 u1=(int)t&0x3f; \ 444 u2&=0x3f; \ 445 LL^=des_SPtrans[1][u1]; \ 446 LL^=des_SPtrans[3][u2]; \ 447 s1=(int)t>>16; \ 448 s2=(int)t>>24L; \ 449 s1&=0x3f; \ 450 s2&=0x3f; \ 451 LL^=des_SPtrans[5][s1]; \ 452 LL^=des_SPtrans[7][s2]; } 453#endif 454 455#else 456 457#define D_ENCRYPT(LL,R,S) {\ 458 LOAD_DATA_tmp(R,S,u,t,E0,E1); \ 459 t=ROTATE(t,4); \ 460 LL^=\ 461 des_SPtrans[0][(u>> 2L)&0x3f]^ \ 462 des_SPtrans[2][(u>>10L)&0x3f]^ \ 463 des_SPtrans[4][(u>>18L)&0x3f]^ \ 464 des_SPtrans[6][(u>>26L)&0x3f]^ \ 465 des_SPtrans[1][(t>> 2L)&0x3f]^ \ 466 des_SPtrans[3][(t>>10L)&0x3f]^ \ 467 des_SPtrans[5][(t>>18L)&0x3f]^ \ 468 des_SPtrans[7][(t>>26L)&0x3f]; } 469#endif 470#endif 471 472 /* IP and FP 473 * The problem is more of a geometric problem that random bit fiddling. 474 0 1 2 3 4 5 6 7 62 54 46 38 30 22 14 6 475 8 9 10 11 12 13 14 15 60 52 44 36 28 20 12 4 476 16 17 18 19 20 21 22 23 58 50 42 34 26 18 10 2 477 24 25 26 27 28 29 30 31 to 56 48 40 32 24 16 8 0 478 479 32 33 34 35 36 37 38 39 63 55 47 39 31 23 15 7 480 40 41 42 43 44 45 46 47 61 53 45 37 29 21 13 5 481 48 49 50 51 52 53 54 55 59 51 43 35 27 19 11 3 482 56 57 58 59 60 61 62 63 57 49 41 33 25 17 9 1 483 484 The output has been subject to swaps of the form 485 0 1 -> 3 1 but the odd and even bits have been put into 486 2 3 2 0 487 different words. The main trick is to remember that 488 t=((l>>size)^r)&(mask); 489 r^=t; 490 l^=(t<<size); 491 can be used to swap and move bits between words. 492 493 So l = 0 1 2 3 r = 16 17 18 19 494 4 5 6 7 20 21 22 23 495 8 9 10 11 24 25 26 27 496 12 13 14 15 28 29 30 31 497 becomes (for size == 2 and mask == 0x3333) 498 t = 2^16 3^17 -- -- l = 0 1 16 17 r = 2 3 18 19 499 6^20 7^21 -- -- 4 5 20 21 6 7 22 23 500 10^24 11^25 -- -- 8 9 24 25 10 11 24 25 501 14^28 15^29 -- -- 12 13 28 29 14 15 28 29 502 503 Thanks for hints from Richard Outerbridge - he told me IP&FP 504 could be done in 15 xor, 10 shifts and 5 ands. 505 When I finally started to think of the problem in 2D 506 I first got ~42 operations without xors. When I remembered 507 how to use xors :-) I got it to its final state. 508 */ 509#define PERM_OP(a,b,t,n,m) ((t)=((((a)>>(n))^(b))&(m)),\ 510 (b)^=(t),\ 511 (a)^=((t)<<(n))) 512 513#define IP(l,r) \ 514 { \ 515 register DES_LONG tt; \ 516 PERM_OP(r,l,tt, 4,0x0f0f0f0fL); \ 517 PERM_OP(l,r,tt,16,0x0000ffffL); \ 518 PERM_OP(r,l,tt, 2,0x33333333L); \ 519 PERM_OP(l,r,tt, 8,0x00ff00ffL); \ 520 PERM_OP(r,l,tt, 1,0x55555555L); \ 521 } 522 523#define FP(l,r) \ 524 { \ 525 register DES_LONG tt; \ 526 PERM_OP(l,r,tt, 1,0x55555555L); \ 527 PERM_OP(r,l,tt, 8,0x00ff00ffL); \ 528 PERM_OP(l,r,tt, 2,0x33333333L); \ 529 PERM_OP(r,l,tt,16,0x0000ffffL); \ 530 PERM_OP(l,r,tt, 4,0x0f0f0f0fL); \ 531 } 532 533extern const DES_LONG des_SPtrans[8][64]; 534 535#endif 536