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204 lines
9.6 KiB
204 lines
9.6 KiB
/* crypto/rc5/rc5_locl.h */ |
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/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) |
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* All rights reserved. |
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* |
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* This package is an SSL implementation written |
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* by Eric Young (eay@cryptsoft.com). |
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* The implementation was written so as to conform with Netscapes SSL. |
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* |
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* This library is free for commercial and non-commercial use as long as |
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* the following conditions are aheared to. The following conditions |
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* apply to all code found in this distribution, be it the RC4, RSA, |
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* lhash, DES, etc., code; not just the SSL code. The SSL documentation |
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* included with this distribution is covered by the same copyright terms |
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* except that the holder is Tim Hudson (tjh@cryptsoft.com). |
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* |
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* Copyright remains Eric Young's, and as such any Copyright notices in |
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* the code are not to be removed. |
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* If this package is used in a product, Eric Young should be given attribution |
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* as the author of the parts of the library used. |
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* This can be in the form of a textual message at program startup or |
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* in documentation (online or textual) provided with the package. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* 1. Redistributions of source code must retain the copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* 3. All advertising materials mentioning features or use of this software |
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* must display the following acknowledgement: |
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* "This product includes cryptographic software written by |
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* Eric Young (eay@cryptsoft.com)" |
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* The word 'cryptographic' can be left out if the rouines from the library |
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* being used are not cryptographic related :-). |
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* 4. If you include any Windows specific code (or a derivative thereof) from |
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* the apps directory (application code) you must include an acknowledgement: |
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* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" |
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* |
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* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND |
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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* SUCH DAMAGE. |
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* |
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* The licence and distribution terms for any publically available version or |
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* derivative of this code cannot be changed. i.e. this code cannot simply be |
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* copied and put under another distribution licence |
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* [including the GNU Public Licence.] |
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*/ |
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#include <stdlib.h> |
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#undef c2l |
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#define c2l(c,l) (l =((unsigned long)(*((c)++))) , \ |
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l|=((unsigned long)(*((c)++)))<< 8L, \ |
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l|=((unsigned long)(*((c)++)))<<16L, \ |
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l|=((unsigned long)(*((c)++)))<<24L) |
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/* NOTE - c is not incremented as per c2l */ |
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#undef c2ln |
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#define c2ln(c,l1,l2,n) { \ |
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c+=n; \ |
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l1=l2=0; \ |
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switch (n) { \ |
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case 8: l2 =((unsigned long)(*(--(c))))<<24L; \ |
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case 7: l2|=((unsigned long)(*(--(c))))<<16L; \ |
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case 6: l2|=((unsigned long)(*(--(c))))<< 8L; \ |
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case 5: l2|=((unsigned long)(*(--(c)))); \ |
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case 4: l1 =((unsigned long)(*(--(c))))<<24L; \ |
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case 3: l1|=((unsigned long)(*(--(c))))<<16L; \ |
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case 2: l1|=((unsigned long)(*(--(c))))<< 8L; \ |
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case 1: l1|=((unsigned long)(*(--(c)))); \ |
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} \ |
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} |
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#undef l2c |
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#define l2c(l,c) (*((c)++)=(unsigned char)(((l) )&0xff), \ |
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*((c)++)=(unsigned char)(((l)>> 8L)&0xff), \ |
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*((c)++)=(unsigned char)(((l)>>16L)&0xff), \ |
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*((c)++)=(unsigned char)(((l)>>24L)&0xff)) |
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/* NOTE - c is not incremented as per l2c */ |
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#undef l2cn |
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#define l2cn(l1,l2,c,n) { \ |
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c+=n; \ |
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switch (n) { \ |
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case 8: *(--(c))=(unsigned char)(((l2)>>24L)&0xff); \ |
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case 7: *(--(c))=(unsigned char)(((l2)>>16L)&0xff); \ |
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case 6: *(--(c))=(unsigned char)(((l2)>> 8L)&0xff); \ |
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case 5: *(--(c))=(unsigned char)(((l2) )&0xff); \ |
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case 4: *(--(c))=(unsigned char)(((l1)>>24L)&0xff); \ |
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case 3: *(--(c))=(unsigned char)(((l1)>>16L)&0xff); \ |
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case 2: *(--(c))=(unsigned char)(((l1)>> 8L)&0xff); \ |
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case 1: *(--(c))=(unsigned char)(((l1) )&0xff); \ |
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} \ |
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} |
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/* NOTE - c is not incremented as per n2l */ |
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#define n2ln(c,l1,l2,n) { \ |
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c+=n; \ |
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l1=l2=0; \ |
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switch (n) { \ |
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case 8: l2 =((unsigned long)(*(--(c)))) ; \ |
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case 7: l2|=((unsigned long)(*(--(c))))<< 8; \ |
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case 6: l2|=((unsigned long)(*(--(c))))<<16; \ |
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case 5: l2|=((unsigned long)(*(--(c))))<<24; \ |
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case 4: l1 =((unsigned long)(*(--(c)))) ; \ |
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case 3: l1|=((unsigned long)(*(--(c))))<< 8; \ |
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case 2: l1|=((unsigned long)(*(--(c))))<<16; \ |
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case 1: l1|=((unsigned long)(*(--(c))))<<24; \ |
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} \ |
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} |
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/* NOTE - c is not incremented as per l2n */ |
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#define l2nn(l1,l2,c,n) { \ |
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c+=n; \ |
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switch (n) { \ |
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case 8: *(--(c))=(unsigned char)(((l2) )&0xff); \ |
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case 7: *(--(c))=(unsigned char)(((l2)>> 8)&0xff); \ |
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case 6: *(--(c))=(unsigned char)(((l2)>>16)&0xff); \ |
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case 5: *(--(c))=(unsigned char)(((l2)>>24)&0xff); \ |
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case 4: *(--(c))=(unsigned char)(((l1) )&0xff); \ |
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case 3: *(--(c))=(unsigned char)(((l1)>> 8)&0xff); \ |
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case 2: *(--(c))=(unsigned char)(((l1)>>16)&0xff); \ |
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case 1: *(--(c))=(unsigned char)(((l1)>>24)&0xff); \ |
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} \ |
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} |
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#undef n2l |
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#define n2l(c,l) (l =((unsigned long)(*((c)++)))<<24L, \ |
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l|=((unsigned long)(*((c)++)))<<16L, \ |
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l|=((unsigned long)(*((c)++)))<< 8L, \ |
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l|=((unsigned long)(*((c)++)))) |
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#undef l2n |
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#define l2n(l,c) (*((c)++)=(unsigned char)(((l)>>24L)&0xff), \ |
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*((c)++)=(unsigned char)(((l)>>16L)&0xff), \ |
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*((c)++)=(unsigned char)(((l)>> 8L)&0xff), \ |
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*((c)++)=(unsigned char)(((l) )&0xff)) |
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#if (defined(OPENSSL_SYS_WIN32) && defined(_MSC_VER)) || defined(__ICC) |
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# define ROTATE_l32(a,n) _lrotl(a,n) |
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# define ROTATE_r32(a,n) _lrotr(a,n) |
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#elif defined(__GNUC__) && __GNUC__>=2 && !defined(__STRICT_ANSI__) && !defined(OPENSSL_NO_ASM) && !defined(OPENSSL_NO_INLINE_ASM) && !defined(PEDANTIC) |
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# if defined(__i386) || defined(__i386__) || defined(__x86_64) || defined(__x86_64__) |
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# define ROTATE_l32(a,n) ({ register unsigned int ret; \ |
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asm ("roll %%cl,%0" \ |
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: "=r"(ret) \ |
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: "c"(n),"0"((unsigned int)(a)) \ |
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: "cc"); \ |
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ret; \ |
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}) |
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# define ROTATE_r32(a,n) ({ register unsigned int ret; \ |
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asm ("rorl %%cl,%0" \ |
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: "=r"(ret) \ |
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: "c"(n),"0"((unsigned int)(a)) \ |
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: "cc"); \ |
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ret; \ |
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}) |
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# endif |
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#endif |
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#ifndef ROTATE_l32 |
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# define ROTATE_l32(a,n) (((a)<<(n&0x1f))|(((a)&0xffffffff)>>(32-(n&0x1f)))) |
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#endif |
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#ifndef ROTATE_r32 |
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# define ROTATE_r32(a,n) (((a)<<(32-(n&0x1f)))|(((a)&0xffffffff)>>(n&0x1f))) |
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#endif |
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#define RC5_32_MASK 0xffffffffL |
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#define RC5_16_P 0xB7E1 |
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#define RC5_16_Q 0x9E37 |
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#define RC5_32_P 0xB7E15163L |
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#define RC5_32_Q 0x9E3779B9L |
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#define RC5_64_P 0xB7E151628AED2A6BLL |
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#define RC5_64_Q 0x9E3779B97F4A7C15LL |
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#define E_RC5_32(a,b,s,n) \ |
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a^=b; \ |
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a=ROTATE_l32(a,b); \ |
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a+=s[n]; \ |
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a&=RC5_32_MASK; \ |
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b^=a; \ |
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b=ROTATE_l32(b,a); \ |
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b+=s[n+1]; \ |
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b&=RC5_32_MASK; |
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#define D_RC5_32(a,b,s,n) \ |
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b-=s[n+1]; \ |
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b&=RC5_32_MASK; \ |
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b=ROTATE_r32(b,a); \ |
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b^=a; \ |
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a-=s[n]; \ |
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a&=RC5_32_MASK; \ |
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a=ROTATE_r32(a,b); \ |
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a^=b;
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