You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
205 lines
9.6 KiB
205 lines
9.6 KiB
4 years ago
|
/* crypto/rc5/rc5_locl.h */
|
||
|
|
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
|
||
|
|
* All rights reserved.
|
||
|
|
*
|
||
|
|
* This package is an SSL implementation written
|
||
|
|
* by Eric Young (eay@cryptsoft.com).
|
||
|
|
* The implementation was written so as to conform with Netscapes SSL.
|
||
|
|
*
|
||
|
|
* This library is free for commercial and non-commercial use as long as
|
||
|
|
* the following conditions are aheared to. The following conditions
|
||
|
|
* apply to all code found in this distribution, be it the RC4, RSA,
|
||
|
|
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
|
||
|
|
* included with this distribution is covered by the same copyright terms
|
||
|
|
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
|
||
|
|
*
|
||
|
|
* Copyright remains Eric Young's, and as such any Copyright notices in
|
||
|
|
* the code are not to be removed.
|
||
|
|
* If this package is used in a product, Eric Young should be given attribution
|
||
|
|
* as the author of the parts of the library used.
|
||
|
|
* This can be in the form of a textual message at program startup or
|
||
|
|
* in documentation (online or textual) provided with the package.
|
||
|
|
*
|
||
|
|
* Redistribution and use in source and binary forms, with or without
|
||
|
|
* modification, are permitted provided that the following conditions
|
||
|
|
* are met:
|
||
|
|
* 1. Redistributions of source code must retain the copyright
|
||
|
|
* notice, this list of conditions and the following disclaimer.
|
||
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
||
|
|
* notice, this list of conditions and the following disclaimer in the
|
||
|
|
* documentation and/or other materials provided with the distribution.
|
||
|
|
* 3. All advertising materials mentioning features or use of this software
|
||
|
|
* must display the following acknowledgement:
|
||
|
|
* "This product includes cryptographic software written by
|
||
|
|
* Eric Young (eay@cryptsoft.com)"
|
||
|
|
* The word 'cryptographic' can be left out if the rouines from the library
|
||
|
|
* being used are not cryptographic related :-).
|
||
|
|
* 4. If you include any Windows specific code (or a derivative thereof) from
|
||
|
|
* the apps directory (application code) you must include an acknowledgement:
|
||
|
|
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
|
||
|
|
*
|
||
|
|
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
|
||
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
||
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||
|
|
* SUCH DAMAGE.
|
||
|
|
*
|
||
|
|
* The licence and distribution terms for any publically available version or
|
||
|
|
* derivative of this code cannot be changed. i.e. this code cannot simply be
|
||
|
|
* copied and put under another distribution licence
|
||
|
|
* [including the GNU Public Licence.]
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <stdlib.h>
|
||
|
|
|
||
|
|
#undef c2l
|
||
|
|
#define c2l(c,l) (l =((unsigned long)(*((c)++))) , \
|
||
|
|
l|=((unsigned long)(*((c)++)))<< 8L, \
|
||
|
|
l|=((unsigned long)(*((c)++)))<<16L, \
|
||
|
|
l|=((unsigned long)(*((c)++)))<<24L)
|
||
|
|
|
||
|
|
/* NOTE - c is not incremented as per c2l */
|
||
|
|
#undef c2ln
|
||
|
|
#define c2ln(c,l1,l2,n) { \
|
||
|
|
c+=n; \
|
||
|
|
l1=l2=0; \
|
||
|
|
switch (n) { \
|
||
|
|
case 8: l2 =((unsigned long)(*(--(c))))<<24L; \
|
||
|
|
case 7: l2|=((unsigned long)(*(--(c))))<<16L; \
|
||
|
|
case 6: l2|=((unsigned long)(*(--(c))))<< 8L; \
|
||
|
|
case 5: l2|=((unsigned long)(*(--(c)))); \
|
||
|
|
case 4: l1 =((unsigned long)(*(--(c))))<<24L; \
|
||
|
|
case 3: l1|=((unsigned long)(*(--(c))))<<16L; \
|
||
|
|
case 2: l1|=((unsigned long)(*(--(c))))<< 8L; \
|
||
|
|
case 1: l1|=((unsigned long)(*(--(c)))); \
|
||
|
|
} \
|
||
|
|
}
|
||
|
|
|
||
|
|
#undef l2c
|
||
|
|
#define l2c(l,c) (*((c)++)=(unsigned char)(((l) )&0xff), \
|
||
|
|
*((c)++)=(unsigned char)(((l)>> 8L)&0xff), \
|
||
|
|
*((c)++)=(unsigned char)(((l)>>16L)&0xff), \
|
||
|
|
*((c)++)=(unsigned char)(((l)>>24L)&0xff))
|
||
|
|
|
||
|
|
/* NOTE - c is not incremented as per l2c */
|
||
|
|
#undef l2cn
|
||
|
|
#define l2cn(l1,l2,c,n) { \
|
||
|
|
c+=n; \
|
||
|
|
switch (n) { \
|
||
|
|
case 8: *(--(c))=(unsigned char)(((l2)>>24L)&0xff); \
|
||
|
|
case 7: *(--(c))=(unsigned char)(((l2)>>16L)&0xff); \
|
||
|
|
case 6: *(--(c))=(unsigned char)(((l2)>> 8L)&0xff); \
|
||
|
|
case 5: *(--(c))=(unsigned char)(((l2) )&0xff); \
|
||
|
|
case 4: *(--(c))=(unsigned char)(((l1)>>24L)&0xff); \
|
||
|
|
case 3: *(--(c))=(unsigned char)(((l1)>>16L)&0xff); \
|
||
|
|
case 2: *(--(c))=(unsigned char)(((l1)>> 8L)&0xff); \
|
||
|
|
case 1: *(--(c))=(unsigned char)(((l1) )&0xff); \
|
||
|
|
} \
|
||
|
|
}
|
||
|
|
|
||
|
|
/* NOTE - c is not incremented as per n2l */
|
||
|
|
#define n2ln(c,l1,l2,n) { \
|
||
|
|
c+=n; \
|
||
|
|
l1=l2=0; \
|
||
|
|
switch (n) { \
|
||
|
|
case 8: l2 =((unsigned long)(*(--(c)))) ; \
|
||
|
|
case 7: l2|=((unsigned long)(*(--(c))))<< 8; \
|
||
|
|
case 6: l2|=((unsigned long)(*(--(c))))<<16; \
|
||
|
|
case 5: l2|=((unsigned long)(*(--(c))))<<24; \
|
||
|
|
case 4: l1 =((unsigned long)(*(--(c)))) ; \
|
||
|
|
case 3: l1|=((unsigned long)(*(--(c))))<< 8; \
|
||
|
|
case 2: l1|=((unsigned long)(*(--(c))))<<16; \
|
||
|
|
case 1: l1|=((unsigned long)(*(--(c))))<<24; \
|
||
|
|
} \
|
||
|
|
}
|
||
|
|
|
||
|
|
/* NOTE - c is not incremented as per l2n */
|
||
|
|
#define l2nn(l1,l2,c,n) { \
|
||
|
|
c+=n; \
|
||
|
|
switch (n) { \
|
||
|
|
case 8: *(--(c))=(unsigned char)(((l2) )&0xff); \
|
||
|
|
case 7: *(--(c))=(unsigned char)(((l2)>> 8)&0xff); \
|
||
|
|
case 6: *(--(c))=(unsigned char)(((l2)>>16)&0xff); \
|
||
|
|
case 5: *(--(c))=(unsigned char)(((l2)>>24)&0xff); \
|
||
|
|
case 4: *(--(c))=(unsigned char)(((l1) )&0xff); \
|
||
|
|
case 3: *(--(c))=(unsigned char)(((l1)>> 8)&0xff); \
|
||
|
|
case 2: *(--(c))=(unsigned char)(((l1)>>16)&0xff); \
|
||
|
|
case 1: *(--(c))=(unsigned char)(((l1)>>24)&0xff); \
|
||
|
|
} \
|
||
|
|
}
|
||
|
|
|
||
|
|
#undef n2l
|
||
|
|
#define n2l(c,l) (l =((unsigned long)(*((c)++)))<<24L, \
|
||
|
|
l|=((unsigned long)(*((c)++)))<<16L, \
|
||
|
|
l|=((unsigned long)(*((c)++)))<< 8L, \
|
||
|
|
l|=((unsigned long)(*((c)++))))
|
||
|
|
|
||
|
|
#undef l2n
|
||
|
|
#define l2n(l,c) (*((c)++)=(unsigned char)(((l)>>24L)&0xff), \
|
||
|
|
*((c)++)=(unsigned char)(((l)>>16L)&0xff), \
|
||
|
|
*((c)++)=(unsigned char)(((l)>> 8L)&0xff), \
|
||
|
|
*((c)++)=(unsigned char)(((l) )&0xff))
|
||
|
|
|
||
|
|
#if (defined(OPENSSL_SYS_WIN32) && defined(_MSC_VER)) || defined(__ICC)
|
||
|
|
# define ROTATE_l32(a,n) _lrotl(a,n)
|
||
|
|
# define ROTATE_r32(a,n) _lrotr(a,n)
|
||
|
|
#elif defined(__GNUC__) && __GNUC__>=2 && !defined(__STRICT_ANSI__) && !defined(OPENSSL_NO_ASM) && !defined(OPENSSL_NO_INLINE_ASM) && !defined(PEDANTIC)
|
||
|
|
# if defined(__i386) || defined(__i386__) || defined(__x86_64) || defined(__x86_64__)
|
||
|
|
# define ROTATE_l32(a,n) ({ register unsigned int ret; \
|
||
|
|
asm ("roll %%cl,%0" \
|
||
|
|
: "=r"(ret) \
|
||
|
|
: "c"(n),"0"((unsigned int)(a)) \
|
||
|
|
: "cc"); \
|
||
|
|
ret; \
|
||
|
|
})
|
||
|
|
# define ROTATE_r32(a,n) ({ register unsigned int ret; \
|
||
|
|
asm ("rorl %%cl,%0" \
|
||
|
|
: "=r"(ret) \
|
||
|
|
: "c"(n),"0"((unsigned int)(a)) \
|
||
|
|
: "cc"); \
|
||
|
|
ret; \
|
||
|
|
})
|
||
|
|
# endif
|
||
|
|
#endif
|
||
|
|
#ifndef ROTATE_l32
|
||
|
|
# define ROTATE_l32(a,n) (((a)<<(n&0x1f))|(((a)&0xffffffff)>>(32-(n&0x1f))))
|
||
|
|
#endif
|
||
|
|
#ifndef ROTATE_r32
|
||
|
|
# define ROTATE_r32(a,n) (((a)<<(32-(n&0x1f)))|(((a)&0xffffffff)>>(n&0x1f)))
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#define RC5_32_MASK 0xffffffffL
|
||
|
|
|
||
|
|
#define RC5_16_P 0xB7E1
|
||
|
|
#define RC5_16_Q 0x9E37
|
||
|
|
#define RC5_32_P 0xB7E15163L
|
||
|
|
#define RC5_32_Q 0x9E3779B9L
|
||
|
|
#define RC5_64_P 0xB7E151628AED2A6BLL
|
||
|
|
#define RC5_64_Q 0x9E3779B97F4A7C15LL
|
||
|
|
|
||
|
|
#define E_RC5_32(a,b,s,n) \
|
||
|
|
a^=b; \
|
||
|
|
a=ROTATE_l32(a,b); \
|
||
|
|
a+=s[n]; \
|
||
|
|
a&=RC5_32_MASK; \
|
||
|
|
b^=a; \
|
||
|
|
b=ROTATE_l32(b,a); \
|
||
|
|
b+=s[n+1]; \
|
||
|
|
b&=RC5_32_MASK;
|
||
|
|
|
||
|
|
#define D_RC5_32(a,b,s,n) \
|
||
|
|
b-=s[n+1]; \
|
||
|
|
b&=RC5_32_MASK; \
|
||
|
|
b=ROTATE_r32(b,a); \
|
||
|
|
b^=a; \
|
||
|
|
a-=s[n]; \
|
||
|
|
a&=RC5_32_MASK; \
|
||
|
|
a=ROTATE_r32(a,b); \
|
||
|
|
a^=b;
|