diff options
Diffstat (limited to 'crypto/des/des_locl.h')
| -rw-r--r-- | crypto/des/des_locl.h | 715 |
1 files changed, 362 insertions, 353 deletions
diff --git a/crypto/des/des_locl.h b/crypto/des/des_locl.h index a3b512e9b040..1a8e41dd29c7 100644 --- a/crypto/des/des_locl.h +++ b/crypto/des/des_locl.h @@ -5,21 +5,21 @@ * 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: @@ -34,10 +34,10 @@ * 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 + * 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 @@ -49,7 +49,7 @@ * 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 @@ -57,376 +57,385 @@ */ #ifndef HEADER_DES_LOCL_H -#define HEADER_DES_LOCL_H +# define HEADER_DES_LOCL_H -#include <openssl/e_os2.h> +# include <openssl/e_os2.h> -#if defined(OPENSSL_SYS_WIN32) -#ifndef OPENSSL_SYS_MSDOS -#define OPENSSL_SYS_MSDOS -#endif -#endif - -#include <stdio.h> -#include <stdlib.h> +# if defined(OPENSSL_SYS_WIN32) +# ifndef OPENSSL_SYS_MSDOS +# define OPENSSL_SYS_MSDOS +# endif +# endif -#ifndef OPENSSL_SYS_MSDOS -#if !defined(OPENSSL_SYS_VMS) || defined(__DECC) -#ifdef OPENSSL_UNISTD -# include OPENSSL_UNISTD -#else -# include <unistd.h> -#endif -#include <math.h> -#endif -#endif -#include <openssl/des.h> +# include <stdio.h> +# include <stdlib.h> + +# ifndef OPENSSL_SYS_MSDOS +# if !defined(OPENSSL_SYS_VMS) || defined(__DECC) +# ifdef OPENSSL_UNISTD +# include OPENSSL_UNISTD +# else +# include <unistd.h> +# endif +# include <math.h> +# endif +# endif +# include <openssl/des.h> -#ifdef OPENSSL_SYS_MSDOS /* Visual C++ 2.1 (Windows NT/95) */ -#include <stdlib.h> -#include <errno.h> -#include <time.h> -#include <io.h> -#endif +# ifdef OPENSSL_SYS_MSDOS /* Visual C++ 2.1 (Windows NT/95) */ +# include <stdlib.h> +# include <errno.h> +# include <time.h> +# include <io.h> +# endif -#if defined(__STDC__) || defined(OPENSSL_SYS_VMS) || defined(M_XENIX) || defined(OPENSSL_SYS_MSDOS) -#include <string.h> -#endif +# if defined(__STDC__) || defined(OPENSSL_SYS_VMS) || defined(M_XENIX) || defined(OPENSSL_SYS_MSDOS) +# include <string.h> +# endif -#ifdef OPENSSL_BUILD_SHLIBCRYPTO -# undef OPENSSL_EXTERN -# define OPENSSL_EXTERN OPENSSL_EXPORT -#endif +# ifdef OPENSSL_BUILD_SHLIBCRYPTO +# undef OPENSSL_EXTERN +# define OPENSSL_EXTERN OPENSSL_EXPORT +# endif -#define ITERATIONS 16 -#define HALF_ITERATIONS 8 +# define ITERATIONS 16 +# define HALF_ITERATIONS 8 /* used in des_read and des_write */ -#define MAXWRITE (1024*16) -#define BSIZE (MAXWRITE+4) +# define MAXWRITE (1024*16) +# define BSIZE (MAXWRITE+4) -#define c2l(c,l) (l =((DES_LONG)(*((c)++))) , \ - l|=((DES_LONG)(*((c)++)))<< 8L, \ - l|=((DES_LONG)(*((c)++)))<<16L, \ - l|=((DES_LONG)(*((c)++)))<<24L) +# define c2l(c,l) (l =((DES_LONG)(*((c)++))) , \ + l|=((DES_LONG)(*((c)++)))<< 8L, \ + l|=((DES_LONG)(*((c)++)))<<16L, \ + l|=((DES_LONG)(*((c)++)))<<24L) /* NOTE - c is not incremented as per c2l */ -#define c2ln(c,l1,l2,n) { \ - c+=n; \ - l1=l2=0; \ - switch (n) { \ - case 8: l2 =((DES_LONG)(*(--(c))))<<24L; \ - case 7: l2|=((DES_LONG)(*(--(c))))<<16L; \ - case 6: l2|=((DES_LONG)(*(--(c))))<< 8L; \ - case 5: l2|=((DES_LONG)(*(--(c)))); \ - case 4: l1 =((DES_LONG)(*(--(c))))<<24L; \ - case 3: l1|=((DES_LONG)(*(--(c))))<<16L; \ - case 2: l1|=((DES_LONG)(*(--(c))))<< 8L; \ - case 1: l1|=((DES_LONG)(*(--(c)))); \ - } \ - } - -#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)) - -/* replacements for htonl and ntohl since I have no idea what to do - * when faced with machines with 8 byte longs. */ -#define HDRSIZE 4 - -#define n2l(c,l) (l =((DES_LONG)(*((c)++)))<<24L, \ - l|=((DES_LONG)(*((c)++)))<<16L, \ - l|=((DES_LONG)(*((c)++)))<< 8L, \ - l|=((DES_LONG)(*((c)++)))) - -#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)) +# define c2ln(c,l1,l2,n) { \ + c+=n; \ + l1=l2=0; \ + switch (n) { \ + case 8: l2 =((DES_LONG)(*(--(c))))<<24L; \ + case 7: l2|=((DES_LONG)(*(--(c))))<<16L; \ + case 6: l2|=((DES_LONG)(*(--(c))))<< 8L; \ + case 5: l2|=((DES_LONG)(*(--(c)))); \ + case 4: l1 =((DES_LONG)(*(--(c))))<<24L; \ + case 3: l1|=((DES_LONG)(*(--(c))))<<16L; \ + case 2: l1|=((DES_LONG)(*(--(c))))<< 8L; \ + case 1: l1|=((DES_LONG)(*(--(c)))); \ + } \ + } + +# 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)) + +/* + * replacements for htonl and ntohl since I have no idea what to do when + * faced with machines with 8 byte longs. + */ +# define HDRSIZE 4 -/* NOTE - c is not incremented as per l2c */ -#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); \ - } \ - } - -#if (defined(OPENSSL_SYS_WIN32) && defined(_MSC_VER)) || defined(__ICC) -#define ROTATE(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(a,n) ({ register unsigned int ret; \ - asm ("rorl %1,%0" \ - : "=r"(ret) \ - : "I"(n),"0"(a) \ - : "cc"); \ - ret; \ - }) -# endif -#endif -#ifndef ROTATE -#define ROTATE(a,n) (((a)>>(n))+((a)<<(32-(n)))) -#endif +# define n2l(c,l) (l =((DES_LONG)(*((c)++)))<<24L, \ + l|=((DES_LONG)(*((c)++)))<<16L, \ + l|=((DES_LONG)(*((c)++)))<< 8L, \ + l|=((DES_LONG)(*((c)++)))) -/* Don't worry about the LOAD_DATA() stuff, that is used by - * fcrypt() to add it's little bit to the front */ +# 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)) -#ifdef DES_FCRYPT +/* NOTE - c is not incremented as per l2c */ +# 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); \ + } \ + } + +# if (defined(OPENSSL_SYS_WIN32) && defined(_MSC_VER)) || defined(__ICC) +# define ROTATE(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(a,n) ({ register unsigned int ret; \ + asm ("rorl %1,%0" \ + : "=r"(ret) \ + : "I"(n),"0"(a) \ + : "cc"); \ + ret; \ + }) +# endif +# endif +# ifndef ROTATE +# define ROTATE(a,n) (((a)>>(n))+((a)<<(32-(n)))) +# endif -#define LOAD_DATA_tmp(R,S,u,t,E0,E1) \ - { DES_LONG tmp; LOAD_DATA(R,S,u,t,E0,E1,tmp); } +/* + * Don't worry about the LOAD_DATA() stuff, that is used by fcrypt() to add + * it's little bit to the front + */ -#define LOAD_DATA(R,S,u,t,E0,E1,tmp) \ - t=R^(R>>16L); \ - u=t&E0; t&=E1; \ - tmp=(u<<16); u^=R^s[S ]; u^=tmp; \ - tmp=(t<<16); t^=R^s[S+1]; t^=tmp -#else -#define LOAD_DATA_tmp(a,b,c,d,e,f) LOAD_DATA(a,b,c,d,e,f,g) -#define LOAD_DATA(R,S,u,t,E0,E1,tmp) \ - u=R^s[S ]; \ - t=R^s[S+1] -#endif +# ifdef DES_FCRYPT + +# define LOAD_DATA_tmp(R,S,u,t,E0,E1) \ + { DES_LONG tmp; LOAD_DATA(R,S,u,t,E0,E1,tmp); } + +# define LOAD_DATA(R,S,u,t,E0,E1,tmp) \ + t=R^(R>>16L); \ + u=t&E0; t&=E1; \ + tmp=(u<<16); u^=R^s[S ]; u^=tmp; \ + tmp=(t<<16); t^=R^s[S+1]; t^=tmp +# else +# define LOAD_DATA_tmp(a,b,c,d,e,f) LOAD_DATA(a,b,c,d,e,f,g) +# define LOAD_DATA(R,S,u,t,E0,E1,tmp) \ + u=R^s[S ]; \ + t=R^s[S+1] +# endif -/* The changes to this macro may help or hinder, depending on the - * compiler and the architecture. gcc2 always seems to do well :-). - * Inspired by Dana How <how@isl.stanford.edu> - * DO NOT use the alternative version on machines with 8 byte longs. - * It does not seem to work on the Alpha, even when DES_LONG is 4 - * bytes, probably an issue of accessing non-word aligned objects :-( */ -#ifdef DES_PTR - -/* It recently occurred to me that 0^0^0^0^0^0^0 == 0, so there - * is no reason to not xor all the sub items together. This potentially - * saves a register since things can be xored directly into L */ - -#if defined(DES_RISC1) || defined(DES_RISC2) -#ifdef DES_RISC1 -#define D_ENCRYPT(LL,R,S) { \ - unsigned int u1,u2,u3; \ - LOAD_DATA(R,S,u,t,E0,E1,u1); \ - u2=(int)u>>8L; \ - u1=(int)u&0xfc; \ - u2&=0xfc; \ - t=ROTATE(t,4); \ - u>>=16L; \ - LL^= *(const DES_LONG *)(des_SP +u1); \ - LL^= *(const DES_LONG *)(des_SP+0x200+u2); \ - u3=(int)(u>>8L); \ - u1=(int)u&0xfc; \ - u3&=0xfc; \ - LL^= *(const DES_LONG *)(des_SP+0x400+u1); \ - LL^= *(const DES_LONG *)(des_SP+0x600+u3); \ - u2=(int)t>>8L; \ - u1=(int)t&0xfc; \ - u2&=0xfc; \ - t>>=16L; \ - LL^= *(const DES_LONG *)(des_SP+0x100+u1); \ - LL^= *(const DES_LONG *)(des_SP+0x300+u2); \ - u3=(int)t>>8L; \ - u1=(int)t&0xfc; \ - u3&=0xfc; \ - LL^= *(const DES_LONG *)(des_SP+0x500+u1); \ - LL^= *(const DES_LONG *)(des_SP+0x700+u3); } -#endif -#ifdef DES_RISC2 -#define D_ENCRYPT(LL,R,S) { \ - unsigned int u1,u2,s1,s2; \ - LOAD_DATA(R,S,u,t,E0,E1,u1); \ - u2=(int)u>>8L; \ - u1=(int)u&0xfc; \ - u2&=0xfc; \ - t=ROTATE(t,4); \ - LL^= *(const DES_LONG *)(des_SP +u1); \ - LL^= *(const DES_LONG *)(des_SP+0x200+u2); \ - s1=(int)(u>>16L); \ - s2=(int)(u>>24L); \ - s1&=0xfc; \ - s2&=0xfc; \ - LL^= *(const DES_LONG *)(des_SP+0x400+s1); \ - LL^= *(const DES_LONG *)(des_SP+0x600+s2); \ - u2=(int)t>>8L; \ - u1=(int)t&0xfc; \ - u2&=0xfc; \ - LL^= *(const DES_LONG *)(des_SP+0x100+u1); \ - LL^= *(const DES_LONG *)(des_SP+0x300+u2); \ - s1=(int)(t>>16L); \ - s2=(int)(t>>24L); \ - s1&=0xfc; \ - s2&=0xfc; \ - LL^= *(const DES_LONG *)(des_SP+0x500+s1); \ - LL^= *(const DES_LONG *)(des_SP+0x700+s2); } -#endif -#else -#define D_ENCRYPT(LL,R,S) { \ - LOAD_DATA_tmp(R,S,u,t,E0,E1); \ - t=ROTATE(t,4); \ - LL^= \ - *(const DES_LONG *)(des_SP +((u )&0xfc))^ \ - *(const DES_LONG *)(des_SP+0x200+((u>> 8L)&0xfc))^ \ - *(const DES_LONG *)(des_SP+0x400+((u>>16L)&0xfc))^ \ - *(const DES_LONG *)(des_SP+0x600+((u>>24L)&0xfc))^ \ - *(const DES_LONG *)(des_SP+0x100+((t )&0xfc))^ \ - *(const DES_LONG *)(des_SP+0x300+((t>> 8L)&0xfc))^ \ - *(const DES_LONG *)(des_SP+0x500+((t>>16L)&0xfc))^ \ - *(const DES_LONG *)(des_SP+0x700+((t>>24L)&0xfc)); } -#endif +/* + * The changes to this macro may help or hinder, depending on the compiler + * and the architecture. gcc2 always seems to do well :-). Inspired by Dana + * How <how@isl.stanford.edu> DO NOT use the alternative version on machines + * with 8 byte longs. It does not seem to work on the Alpha, even when + * DES_LONG is 4 bytes, probably an issue of accessing non-word aligned + * objects :-( + */ +# ifdef DES_PTR -#else /* original version */ - -#if defined(DES_RISC1) || defined(DES_RISC2) -#ifdef DES_RISC1 -#define D_ENCRYPT(LL,R,S) {\ - unsigned int u1,u2,u3; \ - LOAD_DATA(R,S,u,t,E0,E1,u1); \ - u>>=2L; \ - t=ROTATE(t,6); \ - u2=(int)u>>8L; \ - u1=(int)u&0x3f; \ - u2&=0x3f; \ - u>>=16L; \ - LL^=DES_SPtrans[0][u1]; \ - LL^=DES_SPtrans[2][u2]; \ - u3=(int)u>>8L; \ - u1=(int)u&0x3f; \ - u3&=0x3f; \ - LL^=DES_SPtrans[4][u1]; \ - LL^=DES_SPtrans[6][u3]; \ - u2=(int)t>>8L; \ - u1=(int)t&0x3f; \ - u2&=0x3f; \ - t>>=16L; \ - LL^=DES_SPtrans[1][u1]; \ - LL^=DES_SPtrans[3][u2]; \ - u3=(int)t>>8L; \ - u1=(int)t&0x3f; \ - u3&=0x3f; \ - LL^=DES_SPtrans[5][u1]; \ - LL^=DES_SPtrans[7][u3]; } -#endif -#ifdef DES_RISC2 -#define D_ENCRYPT(LL,R,S) {\ - unsigned int u1,u2,s1,s2; \ - LOAD_DATA(R,S,u,t,E0,E1,u1); \ - u>>=2L; \ - t=ROTATE(t,6); \ - u2=(int)u>>8L; \ - u1=(int)u&0x3f; \ - u2&=0x3f; \ - LL^=DES_SPtrans[0][u1]; \ - LL^=DES_SPtrans[2][u2]; \ - s1=(int)u>>16L; \ - s2=(int)u>>24L; \ - s1&=0x3f; \ - s2&=0x3f; \ - LL^=DES_SPtrans[4][s1]; \ - LL^=DES_SPtrans[6][s2]; \ - u2=(int)t>>8L; \ - u1=(int)t&0x3f; \ - u2&=0x3f; \ - LL^=DES_SPtrans[1][u1]; \ - LL^=DES_SPtrans[3][u2]; \ - s1=(int)t>>16; \ - s2=(int)t>>24L; \ - s1&=0x3f; \ - s2&=0x3f; \ - LL^=DES_SPtrans[5][s1]; \ - LL^=DES_SPtrans[7][s2]; } -#endif +/* + * It recently occurred to me that 0^0^0^0^0^0^0 == 0, so there is no reason + * to not xor all the sub items together. This potentially saves a register + * since things can be xored directly into L + */ -#else - -#define D_ENCRYPT(LL,R,S) {\ - LOAD_DATA_tmp(R,S,u,t,E0,E1); \ - t=ROTATE(t,4); \ - LL^=\ - DES_SPtrans[0][(u>> 2L)&0x3f]^ \ - DES_SPtrans[2][(u>>10L)&0x3f]^ \ - DES_SPtrans[4][(u>>18L)&0x3f]^ \ - DES_SPtrans[6][(u>>26L)&0x3f]^ \ - DES_SPtrans[1][(t>> 2L)&0x3f]^ \ - DES_SPtrans[3][(t>>10L)&0x3f]^ \ - DES_SPtrans[5][(t>>18L)&0x3f]^ \ - DES_SPtrans[7][(t>>26L)&0x3f]; } -#endif -#endif +# if defined(DES_RISC1) || defined(DES_RISC2) +# ifdef DES_RISC1 +# define D_ENCRYPT(LL,R,S) { \ + unsigned int u1,u2,u3; \ + LOAD_DATA(R,S,u,t,E0,E1,u1); \ + u2=(int)u>>8L; \ + u1=(int)u&0xfc; \ + u2&=0xfc; \ + t=ROTATE(t,4); \ + u>>=16L; \ + LL^= *(const DES_LONG *)(des_SP +u1); \ + LL^= *(const DES_LONG *)(des_SP+0x200+u2); \ + u3=(int)(u>>8L); \ + u1=(int)u&0xfc; \ + u3&=0xfc; \ + LL^= *(const DES_LONG *)(des_SP+0x400+u1); \ + LL^= *(const DES_LONG *)(des_SP+0x600+u3); \ + u2=(int)t>>8L; \ + u1=(int)t&0xfc; \ + u2&=0xfc; \ + t>>=16L; \ + LL^= *(const DES_LONG *)(des_SP+0x100+u1); \ + LL^= *(const DES_LONG *)(des_SP+0x300+u2); \ + u3=(int)t>>8L; \ + u1=(int)t&0xfc; \ + u3&=0xfc; \ + LL^= *(const DES_LONG *)(des_SP+0x500+u1); \ + LL^= *(const DES_LONG *)(des_SP+0x700+u3); } +# endif +# ifdef DES_RISC2 +# define D_ENCRYPT(LL,R,S) { \ + unsigned int u1,u2,s1,s2; \ + LOAD_DATA(R,S,u,t,E0,E1,u1); \ + u2=(int)u>>8L; \ + u1=(int)u&0xfc; \ + u2&=0xfc; \ + t=ROTATE(t,4); \ + LL^= *(const DES_LONG *)(des_SP +u1); \ + LL^= *(const DES_LONG *)(des_SP+0x200+u2); \ + s1=(int)(u>>16L); \ + s2=(int)(u>>24L); \ + s1&=0xfc; \ + s2&=0xfc; \ + LL^= *(const DES_LONG *)(des_SP+0x400+s1); \ + LL^= *(const DES_LONG *)(des_SP+0x600+s2); \ + u2=(int)t>>8L; \ + u1=(int)t&0xfc; \ + u2&=0xfc; \ + LL^= *(const DES_LONG *)(des_SP+0x100+u1); \ + LL^= *(const DES_LONG *)(des_SP+0x300+u2); \ + s1=(int)(t>>16L); \ + s2=(int)(t>>24L); \ + s1&=0xfc; \ + s2&=0xfc; \ + LL^= *(const DES_LONG *)(des_SP+0x500+s1); \ + LL^= *(const DES_LONG *)(des_SP+0x700+s2); } +# endif +# else +# define D_ENCRYPT(LL,R,S) { \ + LOAD_DATA_tmp(R,S,u,t,E0,E1); \ + t=ROTATE(t,4); \ + LL^= \ + *(const DES_LONG *)(des_SP +((u )&0xfc))^ \ + *(const DES_LONG *)(des_SP+0x200+((u>> 8L)&0xfc))^ \ + *(const DES_LONG *)(des_SP+0x400+((u>>16L)&0xfc))^ \ + *(const DES_LONG *)(des_SP+0x600+((u>>24L)&0xfc))^ \ + *(const DES_LONG *)(des_SP+0x100+((t )&0xfc))^ \ + *(const DES_LONG *)(des_SP+0x300+((t>> 8L)&0xfc))^ \ + *(const DES_LONG *)(des_SP+0x500+((t>>16L)&0xfc))^ \ + *(const DES_LONG *)(des_SP+0x700+((t>>24L)&0xfc)); } +# endif + +# else /* original version */ + +# if defined(DES_RISC1) || defined(DES_RISC2) +# ifdef DES_RISC1 +# define D_ENCRYPT(LL,R,S) {\ + unsigned int u1,u2,u3; \ + LOAD_DATA(R,S,u,t,E0,E1,u1); \ + u>>=2L; \ + t=ROTATE(t,6); \ + u2=(int)u>>8L; \ + u1=(int)u&0x3f; \ + u2&=0x3f; \ + u>>=16L; \ + LL^=DES_SPtrans[0][u1]; \ + LL^=DES_SPtrans[2][u2]; \ + u3=(int)u>>8L; \ + u1=(int)u&0x3f; \ + u3&=0x3f; \ + LL^=DES_SPtrans[4][u1]; \ + LL^=DES_SPtrans[6][u3]; \ + u2=(int)t>>8L; \ + u1=(int)t&0x3f; \ + u2&=0x3f; \ + t>>=16L; \ + LL^=DES_SPtrans[1][u1]; \ + LL^=DES_SPtrans[3][u2]; \ + u3=(int)t>>8L; \ + u1=(int)t&0x3f; \ + u3&=0x3f; \ + LL^=DES_SPtrans[5][u1]; \ + LL^=DES_SPtrans[7][u3]; } +# endif +# ifdef DES_RISC2 +# define D_ENCRYPT(LL,R,S) {\ + unsigned int u1,u2,s1,s2; \ + LOAD_DATA(R,S,u,t,E0,E1,u1); \ + u>>=2L; \ + t=ROTATE(t,6); \ + u2=(int)u>>8L; \ + u1=(int)u&0x3f; \ + u2&=0x3f; \ + LL^=DES_SPtrans[0][u1]; \ + LL^=DES_SPtrans[2][u2]; \ + s1=(int)u>>16L; \ + s2=(int)u>>24L; \ + s1&=0x3f; \ + s2&=0x3f; \ + LL^=DES_SPtrans[4][s1]; \ + LL^=DES_SPtrans[6][s2]; \ + u2=(int)t>>8L; \ + u1=(int)t&0x3f; \ + u2&=0x3f; \ + LL^=DES_SPtrans[1][u1]; \ + LL^=DES_SPtrans[3][u2]; \ + s1=(int)t>>16; \ + s2=(int)t>>24L; \ + s1&=0x3f; \ + s2&=0x3f; \ + LL^=DES_SPtrans[5][s1]; \ + LL^=DES_SPtrans[7][s2]; } +# endif + +# else + +# define D_ENCRYPT(LL,R,S) {\ + LOAD_DATA_tmp(R,S,u,t,E0,E1); \ + t=ROTATE(t,4); \ + LL^=\ + DES_SPtrans[0][(u>> 2L)&0x3f]^ \ + DES_SPtrans[2][(u>>10L)&0x3f]^ \ + DES_SPtrans[4][(u>>18L)&0x3f]^ \ + DES_SPtrans[6][(u>>26L)&0x3f]^ \ + DES_SPtrans[1][(t>> 2L)&0x3f]^ \ + DES_SPtrans[3][(t>>10L)&0x3f]^ \ + DES_SPtrans[5][(t>>18L)&0x3f]^ \ + DES_SPtrans[7][(t>>26L)&0x3f]; } +# endif +# endif - /* IP and FP - * The problem is more of a geometric problem that random bit fiddling. - 0 1 2 3 4 5 6 7 62 54 46 38 30 22 14 6 - 8 9 10 11 12 13 14 15 60 52 44 36 28 20 12 4 - 16 17 18 19 20 21 22 23 58 50 42 34 26 18 10 2 - 24 25 26 27 28 29 30 31 to 56 48 40 32 24 16 8 0 - - 32 33 34 35 36 37 38 39 63 55 47 39 31 23 15 7 - 40 41 42 43 44 45 46 47 61 53 45 37 29 21 13 5 - 48 49 50 51 52 53 54 55 59 51 43 35 27 19 11 3 - 56 57 58 59 60 61 62 63 57 49 41 33 25 17 9 1 - - The output has been subject to swaps of the form - 0 1 -> 3 1 but the odd and even bits have been put into - 2 3 2 0 - different words. The main trick is to remember that - t=((l>>size)^r)&(mask); - r^=t; - l^=(t<<size); - can be used to swap and move bits between words. - - So l = 0 1 2 3 r = 16 17 18 19 - 4 5 6 7 20 21 22 23 - 8 9 10 11 24 25 26 27 - 12 13 14 15 28 29 30 31 - becomes (for size == 2 and mask == 0x3333) - t = 2^16 3^17 -- -- l = 0 1 16 17 r = 2 3 18 19 - 6^20 7^21 -- -- 4 5 20 21 6 7 22 23 - 10^24 11^25 -- -- 8 9 24 25 10 11 24 25 - 14^28 15^29 -- -- 12 13 28 29 14 15 28 29 - - Thanks for hints from Richard Outerbridge - he told me IP&FP - could be done in 15 xor, 10 shifts and 5 ands. - When I finally started to think of the problem in 2D - I first got ~42 operations without xors. When I remembered - how to use xors :-) I got it to its final state. - */ -#define PERM_OP(a,b,t,n,m) ((t)=((((a)>>(n))^(b))&(m)),\ - (b)^=(t),\ - (a)^=((t)<<(n))) - -#define IP(l,r) \ - { \ - register DES_LONG tt; \ - PERM_OP(r,l,tt, 4,0x0f0f0f0fL); \ - PERM_OP(l,r,tt,16,0x0000ffffL); \ - PERM_OP(r,l,tt, 2,0x33333333L); \ - PERM_OP(l,r,tt, 8,0x00ff00ffL); \ - PERM_OP(r,l,tt, 1,0x55555555L); \ - } - -#define FP(l,r) \ - { \ - register DES_LONG tt; \ - PERM_OP(l,r,tt, 1,0x55555555L); \ - PERM_OP(r,l,tt, 8,0x00ff00ffL); \ - PERM_OP(l,r,tt, 2,0x33333333L); \ - PERM_OP(r,l,tt,16,0x0000ffffL); \ - PERM_OP(l,r,tt, 4,0x0f0f0f0fL); \ - } + /*- + * IP and FP + * The problem is more of a geometric problem that random bit fiddling. + 0 1 2 3 4 5 6 7 62 54 46 38 30 22 14 6 + 8 9 10 11 12 13 14 15 60 52 44 36 28 20 12 4 + 16 17 18 19 20 21 22 23 58 50 42 34 26 18 10 2 + 24 25 26 27 28 29 30 31 to 56 48 40 32 24 16 8 0 + + 32 33 34 35 36 37 38 39 63 55 47 39 31 23 15 7 + 40 41 42 43 44 45 46 47 61 53 45 37 29 21 13 5 + 48 49 50 51 52 53 54 55 59 51 43 35 27 19 11 3 + 56 57 58 59 60 61 62 63 57 49 41 33 25 17 9 1 + + The output has been subject to swaps of the form + 0 1 -> 3 1 but the odd and even bits have been put into + 2 3 2 0 + different words. The main trick is to remember that + t=((l>>size)^r)&(mask); + r^=t; + l^=(t<<size); + can be used to swap and move bits between words. + + So l = 0 1 2 3 r = 16 17 18 19 + 4 5 6 7 20 21 22 23 + 8 9 10 11 24 25 26 27 + 12 13 14 15 28 29 30 31 + becomes (for size == 2 and mask == 0x3333) + t = 2^16 3^17 -- -- l = 0 1 16 17 r = 2 3 18 19 + 6^20 7^21 -- -- 4 5 20 21 6 7 22 23 + 10^24 11^25 -- -- 8 9 24 25 10 11 24 25 + 14^28 15^29 -- -- 12 13 28 29 14 15 28 29 + + Thanks for hints from Richard Outerbridge - he told me IP&FP + could be done in 15 xor, 10 shifts and 5 ands. + When I finally started to think of the problem in 2D + I first got ~42 operations without xors. When I remembered + how to use xors :-) I got it to its final state. + */ +# define PERM_OP(a,b,t,n,m) ((t)=((((a)>>(n))^(b))&(m)),\ + (b)^=(t),\ + (a)^=((t)<<(n))) + +# define IP(l,r) \ + { \ + register DES_LONG tt; \ + PERM_OP(r,l,tt, 4,0x0f0f0f0fL); \ + PERM_OP(l,r,tt,16,0x0000ffffL); \ + PERM_OP(r,l,tt, 2,0x33333333L); \ + PERM_OP(l,r,tt, 8,0x00ff00ffL); \ + PERM_OP(r,l,tt, 1,0x55555555L); \ + } + +# define FP(l,r) \ + { \ + register DES_LONG tt; \ + PERM_OP(l,r,tt, 1,0x55555555L); \ + PERM_OP(r,l,tt, 8,0x00ff00ffL); \ + PERM_OP(l,r,tt, 2,0x33333333L); \ + PERM_OP(r,l,tt,16,0x0000ffffL); \ + PERM_OP(l,r,tt, 4,0x0f0f0f0fL); \ + } extern const DES_LONG DES_SPtrans[8][64]; -void fcrypt_body(DES_LONG *out,DES_key_schedule *ks, - DES_LONG Eswap0, DES_LONG Eswap1); +void fcrypt_body(DES_LONG *out, DES_key_schedule *ks, + DES_LONG Eswap0, DES_LONG Eswap1); -#ifdef OPENSSL_SMALL_FOOTPRINT -#undef DES_UNROLL -#endif +# ifdef OPENSSL_SMALL_FOOTPRINT +# undef DES_UNROLL +# endif #endif |