rc5_locl.h revision 296465
1/* crypto/rc5/rc5_locl.h */ 2/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 3 * All rights reserved. 4 * 5 * This package is an SSL implementation written 6 * by Eric Young (eay@cryptsoft.com). 7 * The implementation was written so as to conform with Netscapes SSL. 8 * 9 * This library is free for commercial and non-commercial use as long as 10 * the following conditions are aheared to. The following conditions 11 * apply to all code found in this distribution, be it the RC4, RSA, 12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation 13 * included with this distribution is covered by the same copyright terms 14 * except that the holder is Tim Hudson (tjh@cryptsoft.com). 15 * 16 * Copyright remains Eric Young's, and as such any Copyright notices in 17 * the code are not to be removed. 18 * If this package is used in a product, Eric Young should be given attribution 19 * as the author of the parts of the library used. 20 * This can be in the form of a textual message at program startup or 21 * in documentation (online or textual) provided with the package. 22 * 23 * Redistribution and use in source and binary forms, with or without 24 * modification, are permitted provided that the following conditions 25 * are met: 26 * 1. Redistributions of source code must retain the copyright 27 * notice, this list of conditions and the following disclaimer. 28 * 2. Redistributions in binary form must reproduce the above copyright 29 * notice, this list of conditions and the following disclaimer in the 30 * documentation and/or other materials provided with the distribution. 31 * 3. All advertising materials mentioning features or use of this software 32 * must display the following acknowledgement: 33 * "This product includes cryptographic software written by 34 * Eric Young (eay@cryptsoft.com)" 35 * The word 'cryptographic' can be left out if the rouines from the library 36 * being used are not cryptographic related :-). 37 * 4. If you include any Windows specific code (or a derivative thereof) from 38 * the apps directory (application code) you must include an acknowledgement: 39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 40 * 41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 51 * SUCH DAMAGE. 52 * 53 * The licence and distribution terms for any publically available version or 54 * derivative of this code cannot be changed. i.e. this code cannot simply be 55 * copied and put under another distribution licence 56 * [including the GNU Public Licence.] 57 */ 58 59#include <stdlib.h> 60 61#undef c2l 62#define c2l(c,l) (l =((unsigned long)(*((c)++))) , \ 63 l|=((unsigned long)(*((c)++)))<< 8L, \ 64 l|=((unsigned long)(*((c)++)))<<16L, \ 65 l|=((unsigned long)(*((c)++)))<<24L) 66 67/* NOTE - c is not incremented as per c2l */ 68#undef c2ln 69#define c2ln(c,l1,l2,n) { \ 70 c+=n; \ 71 l1=l2=0; \ 72 switch (n) { \ 73 case 8: l2 =((unsigned long)(*(--(c))))<<24L; \ 74 case 7: l2|=((unsigned long)(*(--(c))))<<16L; \ 75 case 6: l2|=((unsigned long)(*(--(c))))<< 8L; \ 76 case 5: l2|=((unsigned long)(*(--(c)))); \ 77 case 4: l1 =((unsigned long)(*(--(c))))<<24L; \ 78 case 3: l1|=((unsigned long)(*(--(c))))<<16L; \ 79 case 2: l1|=((unsigned long)(*(--(c))))<< 8L; \ 80 case 1: l1|=((unsigned long)(*(--(c)))); \ 81 } \ 82 } 83 84#undef l2c 85#define l2c(l,c) (*((c)++)=(unsigned char)(((l) )&0xff), \ 86 *((c)++)=(unsigned char)(((l)>> 8L)&0xff), \ 87 *((c)++)=(unsigned char)(((l)>>16L)&0xff), \ 88 *((c)++)=(unsigned char)(((l)>>24L)&0xff)) 89 90/* NOTE - c is not incremented as per l2c */ 91#undef l2cn 92#define l2cn(l1,l2,c,n) { \ 93 c+=n; \ 94 switch (n) { \ 95 case 8: *(--(c))=(unsigned char)(((l2)>>24L)&0xff); \ 96 case 7: *(--(c))=(unsigned char)(((l2)>>16L)&0xff); \ 97 case 6: *(--(c))=(unsigned char)(((l2)>> 8L)&0xff); \ 98 case 5: *(--(c))=(unsigned char)(((l2) )&0xff); \ 99 case 4: *(--(c))=(unsigned char)(((l1)>>24L)&0xff); \ 100 case 3: *(--(c))=(unsigned char)(((l1)>>16L)&0xff); \ 101 case 2: *(--(c))=(unsigned char)(((l1)>> 8L)&0xff); \ 102 case 1: *(--(c))=(unsigned char)(((l1) )&0xff); \ 103 } \ 104 } 105 106/* NOTE - c is not incremented as per n2l */ 107#define n2ln(c,l1,l2,n) { \ 108 c+=n; \ 109 l1=l2=0; \ 110 switch (n) { \ 111 case 8: l2 =((unsigned long)(*(--(c)))) ; \ 112 case 7: l2|=((unsigned long)(*(--(c))))<< 8; \ 113 case 6: l2|=((unsigned long)(*(--(c))))<<16; \ 114 case 5: l2|=((unsigned long)(*(--(c))))<<24; \ 115 case 4: l1 =((unsigned long)(*(--(c)))) ; \ 116 case 3: l1|=((unsigned long)(*(--(c))))<< 8; \ 117 case 2: l1|=((unsigned long)(*(--(c))))<<16; \ 118 case 1: l1|=((unsigned long)(*(--(c))))<<24; \ 119 } \ 120 } 121 122/* NOTE - c is not incremented as per l2n */ 123#define l2nn(l1,l2,c,n) { \ 124 c+=n; \ 125 switch (n) { \ 126 case 8: *(--(c))=(unsigned char)(((l2) )&0xff); \ 127 case 7: *(--(c))=(unsigned char)(((l2)>> 8)&0xff); \ 128 case 6: *(--(c))=(unsigned char)(((l2)>>16)&0xff); \ 129 case 5: *(--(c))=(unsigned char)(((l2)>>24)&0xff); \ 130 case 4: *(--(c))=(unsigned char)(((l1) )&0xff); \ 131 case 3: *(--(c))=(unsigned char)(((l1)>> 8)&0xff); \ 132 case 2: *(--(c))=(unsigned char)(((l1)>>16)&0xff); \ 133 case 1: *(--(c))=(unsigned char)(((l1)>>24)&0xff); \ 134 } \ 135 } 136 137#undef n2l 138#define n2l(c,l) (l =((unsigned long)(*((c)++)))<<24L, \ 139 l|=((unsigned long)(*((c)++)))<<16L, \ 140 l|=((unsigned long)(*((c)++)))<< 8L, \ 141 l|=((unsigned long)(*((c)++)))) 142 143#undef l2n 144#define l2n(l,c) (*((c)++)=(unsigned char)(((l)>>24L)&0xff), \ 145 *((c)++)=(unsigned char)(((l)>>16L)&0xff), \ 146 *((c)++)=(unsigned char)(((l)>> 8L)&0xff), \ 147 *((c)++)=(unsigned char)(((l) )&0xff)) 148 149#if (defined(OPENSSL_SYS_WIN32) && defined(_MSC_VER)) || defined(__ICC) 150# define ROTATE_l32(a,n) _lrotl(a,n) 151# define ROTATE_r32(a,n) _lrotr(a,n) 152#elif defined(__GNUC__) && __GNUC__>=2 && !defined(__STRICT_ANSI__) && !defined(OPENSSL_NO_ASM) && !defined(OPENSSL_NO_INLINE_ASM) && !defined(PEDANTIC) 153# if defined(__i386) || defined(__i386__) || defined(__x86_64) || defined(__x86_64__) 154# define ROTATE_l32(a,n) ({ register unsigned int ret; \ 155 asm ("roll %%cl,%0" \ 156 : "=r"(ret) \ 157 : "c"(n),"0"((unsigned int)(a)) \ 158 : "cc"); \ 159 ret; \ 160 }) 161# define ROTATE_r32(a,n) ({ register unsigned int ret; \ 162 asm ("rorl %%cl,%0" \ 163 : "=r"(ret) \ 164 : "c"(n),"0"((unsigned int)(a)) \ 165 : "cc"); \ 166 ret; \ 167 }) 168# endif 169#endif 170#ifndef ROTATE_l32 171# define ROTATE_l32(a,n) (((a)<<(n&0x1f))|(((a)&0xffffffff)>>(32-(n&0x1f)))) 172#endif 173#ifndef ROTATE_r32 174# define ROTATE_r32(a,n) (((a)<<(32-(n&0x1f)))|(((a)&0xffffffff)>>(n&0x1f))) 175#endif 176 177#define RC5_32_MASK 0xffffffffL 178 179#define RC5_16_P 0xB7E1 180#define RC5_16_Q 0x9E37 181#define RC5_32_P 0xB7E15163L 182#define RC5_32_Q 0x9E3779B9L 183#define RC5_64_P 0xB7E151628AED2A6BLL 184#define RC5_64_Q 0x9E3779B97F4A7C15LL 185 186#define E_RC5_32(a,b,s,n) \ 187 a^=b; \ 188 a=ROTATE_l32(a,b); \ 189 a+=s[n]; \ 190 a&=RC5_32_MASK; \ 191 b^=a; \ 192 b=ROTATE_l32(b,a); \ 193 b+=s[n+1]; \ 194 b&=RC5_32_MASK; 195 196#define D_RC5_32(a,b,s,n) \ 197 b-=s[n+1]; \ 198 b&=RC5_32_MASK; \ 199 b=ROTATE_r32(b,a); \ 200 b^=a; \ 201 a-=s[n]; \ 202 a&=RC5_32_MASK; \ 203 a=ROTATE_r32(a,b); \ 204 a^=b; 205