1/* 2 * Copyright (c) 2000-2001,2011-2012,2014 Apple Inc. All Rights Reserved. 3 * 4 * The contents of this file constitute Original Code as defined in and are 5 * subject to the Apple Public Source License Version 1.2 (the 'License'). 6 * You may not use this file except in compliance with the License. Please obtain 7 * a copy of the License at http://www.apple.com/publicsource and read it before 8 * using this file. 9 * 10 * This Original Code and all software distributed under the License are 11 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS 12 * OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, INCLUDING WITHOUT 13 * LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR 14 * PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. Please see the License for the 15 * specific language governing rights and limitations under the License. 16 */ 17 18 19/* crypto/rc5/rc5_locl.h */ 20/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 21 * All rights reserved. 22 * 23 * This package is an SSL implementation written 24 * by Eric Young (eay@cryptsoft.com). 25 * The implementation was written so as to conform with Netscapes SSL. 26 * 27 * This library is free for commercial and non-commercial use as long as 28 * the following conditions are aheared to. The following conditions 29 * apply to all code found in this distribution, be it the RC4, RSA, 30 * lhash, DES, etc., code; not just the SSL code. The SSL documentation 31 * included with this distribution is covered by the same copyright terms 32 * except that the holder is Tim Hudson (tjh@cryptsoft.com). 33 * 34 * Copyright remains Eric Young's, and as such any Copyright notices in 35 * the code are not to be removed. 36 * If this package is used in a product, Eric Young should be given attribution 37 * as the author of the parts of the library used. 38 * This can be in the form of a textual message at program startup or 39 * in documentation (online or textual) provided with the package. 40 * 41 * Redistribution and use in source and binary forms, with or without 42 * modification, are permitted provided that the following conditions 43 * are met: 44 * 1. Redistributions of source code must retain the copyright 45 * notice, this list of conditions and the following disclaimer. 46 * 2. Redistributions in binary form must reproduce the above copyright 47 * notice, this list of conditions and the following disclaimer in the 48 * documentation and/or other materials provided with the distribution. 49 * 3. All advertising materials mentioning features or use of this software 50 * must display the following acknowledgement: 51 * "This product includes cryptographic software written by 52 * Eric Young (eay@cryptsoft.com)" 53 * The word 'cryptographic' can be left out if the rouines from the library 54 * being used are not cryptographic related :-). 55 * 4. If you include any Windows specific code (or a derivative thereof) from 56 * the apps directory (application code) you must include an acknowledgement: 57 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 58 * 59 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 60 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 61 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 62 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 63 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 64 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 65 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 66 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 67 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 68 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 69 * SUCH DAMAGE. 70 * 71 * The licence and distribution terms for any publically available version or 72 * derivative of this code cannot be changed. i.e. this code cannot simply be 73 * copied and put under another distribution licence 74 * [including the GNU Public Licence.] 75 */ 76 77#include <stdlib.h> 78 79#undef c2l 80#define c2l(c,l) (l =((RC5_32_INT)(*((c)++))) , \ 81 l|=((RC5_32_INT)(*((c)++)))<< 8L, \ 82 l|=((RC5_32_INT)(*((c)++)))<<16L, \ 83 l|=((RC5_32_INT)(*((c)++)))<<24L) 84 85/* NOTE - c is not incremented as per c2l */ 86#undef c2ln 87#define c2ln(c,l1,l2,n) { \ 88 c+=n; \ 89 l1=l2=0; \ 90 switch (n) { \ 91 case 8: l2 =((RC5_32_INT)(*(--(c))))<<24L; \ 92 case 7: l2|=((RC5_32_INT)(*(--(c))))<<16L; \ 93 case 6: l2|=((RC5_32_INT)(*(--(c))))<< 8L; \ 94 case 5: l2|=((RC5_32_INT)(*(--(c)))); \ 95 case 4: l1 =((RC5_32_INT)(*(--(c))))<<24L; \ 96 case 3: l1|=((RC5_32_INT)(*(--(c))))<<16L; \ 97 case 2: l1|=((RC5_32_INT)(*(--(c))))<< 8L; \ 98 case 1: l1|=((RC5_32_INT)(*(--(c)))); \ 99 } \ 100 } 101 102#undef l2c 103#define l2c(l,c) (*((c)++)=(unsigned char)(((l) )&0xff), \ 104 *((c)++)=(unsigned char)(((l)>> 8L)&0xff), \ 105 *((c)++)=(unsigned char)(((l)>>16L)&0xff), \ 106 *((c)++)=(unsigned char)(((l)>>24L)&0xff)) 107 108/* NOTE - c is not incremented as per l2c */ 109#undef l2cn 110#define l2cn(l1,l2,c,n) { \ 111 c+=n; \ 112 switch (n) { \ 113 case 8: *(--(c))=(unsigned char)(((l2)>>24L)&0xff); \ 114 case 7: *(--(c))=(unsigned char)(((l2)>>16L)&0xff); \ 115 case 6: *(--(c))=(unsigned char)(((l2)>> 8L)&0xff); \ 116 case 5: *(--(c))=(unsigned char)(((l2) )&0xff); \ 117 case 4: *(--(c))=(unsigned char)(((l1)>>24L)&0xff); \ 118 case 3: *(--(c))=(unsigned char)(((l1)>>16L)&0xff); \ 119 case 2: *(--(c))=(unsigned char)(((l1)>> 8L)&0xff); \ 120 case 1: *(--(c))=(unsigned char)(((l1) )&0xff); \ 121 } \ 122 } 123 124/* NOTE - c is not incremented as per n2l */ 125#define n2ln(c,l1,l2,n) { \ 126 c+=n; \ 127 l1=l2=0; \ 128 switch (n) { \ 129 case 8: l2 =((RC5_32_INT)(*(--(c)))) ; \ 130 case 7: l2|=((RC5_32_INT)(*(--(c))))<< 8; \ 131 case 6: l2|=((RC5_32_INT)(*(--(c))))<<16; \ 132 case 5: l2|=((RC5_32_INT)(*(--(c))))<<24; \ 133 case 4: l1 =((RC5_32_INT)(*(--(c)))) ; \ 134 case 3: l1|=((RC5_32_INT)(*(--(c))))<< 8; \ 135 case 2: l1|=((RC5_32_INT)(*(--(c))))<<16; \ 136 case 1: l1|=((RC5_32_INT)(*(--(c))))<<24; \ 137 } \ 138 } 139 140/* NOTE - c is not incremented as per l2n */ 141#define l2nn(l1,l2,c,n) { \ 142 c+=n; \ 143 switch (n) { \ 144 case 8: *(--(c))=(unsigned char)(((l2) )&0xff); \ 145 case 7: *(--(c))=(unsigned char)(((l2)>> 8)&0xff); \ 146 case 6: *(--(c))=(unsigned char)(((l2)>>16)&0xff); \ 147 case 5: *(--(c))=(unsigned char)(((l2)>>24)&0xff); \ 148 case 4: *(--(c))=(unsigned char)(((l1) )&0xff); \ 149 case 3: *(--(c))=(unsigned char)(((l1)>> 8)&0xff); \ 150 case 2: *(--(c))=(unsigned char)(((l1)>>16)&0xff); \ 151 case 1: *(--(c))=(unsigned char)(((l1)>>24)&0xff); \ 152 } \ 153 } 154 155#undef n2l 156#define n2l(c,l) (l =((RC5_32_INT)(*((c)++)))<<24L, \ 157 l|=((RC5_32_INT)(*((c)++)))<<16L, \ 158 l|=((RC5_32_INT)(*((c)++)))<< 8L, \ 159 l|=((RC5_32_INT)(*((c)++)))) 160 161#undef l2n 162#define l2n(l,c) (*((c)++)=(unsigned char)(((l)>>24L)&0xff), \ 163 *((c)++)=(unsigned char)(((l)>>16L)&0xff), \ 164 *((c)++)=(unsigned char)(((l)>> 8L)&0xff), \ 165 *((c)++)=(unsigned char)(((l) )&0xff)) 166 167#if defined(WIN32) && defined(_MSC_VER) 168#define ROTATE_l32(a,n) _lrotl(a,n) 169#define ROTATE_r32(a,n) _lrotr(a,n) 170#else 171#define ROTATE_l32(a,n) (((a)<<(n&0x1f))|(((a)&0xffffffff)>>(32-(n&0x1f)))) 172#define ROTATE_r32(a,n) (((a)<<(32-(n&0x1f)))|(((a)&0xffffffff)>>(n&0x1f))) 173#endif 174 175#define RC5_32_MASK 0xffffffffL 176 177#define RC5_16_P 0xB7E1 178#define RC5_16_Q 0x9E37 179#define RC5_32_P 0xB7E15163L 180#define RC5_32_Q 0x9E3779B9L 181#define RC5_64_P 0xB7E151628AED2A6BLL 182#define RC5_64_Q 0x9E3779B97F4A7C15LL 183 184#define E_RC5_32(a,b,s,n) \ 185 a^=b; \ 186 a=ROTATE_l32(a,b); \ 187 a+=s[n]; \ 188 a&=RC5_32_MASK; \ 189 b^=a; \ 190 b=ROTATE_l32(b,a); \ 191 b+=s[n+1]; \ 192 b&=RC5_32_MASK; 193 194#define D_RC5_32(a,b,s,n) \ 195 b-=s[n+1]; \ 196 b&=RC5_32_MASK; \ 197 b=ROTATE_r32(b,a); \ 198 b^=a; \ 199 a-=s[n]; \ 200 a&=RC5_32_MASK; \ 201 a=ROTATE_r32(a,b); \ 202 a^=b; 203 204 205 206