sl@0: /* crypto/des/des_locl.h */ sl@0: /* Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com) sl@0: * All rights reserved. sl@0: * sl@0: * This package is an SSL implementation written sl@0: * by Eric Young (eay@cryptsoft.com). sl@0: * The implementation was written so as to conform with Netscapes SSL. sl@0: * sl@0: * This library is free for commercial and non-commercial use as long as sl@0: * the following conditions are aheared to. The following conditions sl@0: * apply to all code found in this distribution, be it the RC4, RSA, sl@0: * lhash, DES, etc., code; not just the SSL code. The SSL documentation sl@0: * included with this distribution is covered by the same copyright terms sl@0: * except that the holder is Tim Hudson (tjh@cryptsoft.com). sl@0: * sl@0: * Copyright remains Eric Young's, and as such any Copyright notices in sl@0: * the code are not to be removed. sl@0: * If this package is used in a product, Eric Young should be given attribution sl@0: * as the author of the parts of the library used. sl@0: * This can be in the form of a textual message at program startup or sl@0: * in documentation (online or textual) provided with the package. sl@0: * sl@0: * Redistribution and use in source and binary forms, with or without sl@0: * modification, are permitted provided that the following conditions sl@0: * are met: sl@0: * 1. Redistributions of source code must retain the copyright sl@0: * notice, this list of conditions and the following disclaimer. sl@0: * 2. Redistributions in binary form must reproduce the above copyright sl@0: * notice, this list of conditions and the following disclaimer in the sl@0: * documentation and/or other materials provided with the distribution. sl@0: * 3. All advertising materials mentioning features or use of this software sl@0: * must display the following acknowledgement: sl@0: * "This product includes cryptographic software written by sl@0: * Eric Young (eay@cryptsoft.com)" sl@0: * The word 'cryptographic' can be left out if the rouines from the library sl@0: * being used are not cryptographic related :-). sl@0: * 4. If you include any Windows specific code (or a derivative thereof) from sl@0: * the apps directory (application code) you must include an acknowledgement: sl@0: * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" sl@0: * sl@0: * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND sl@0: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE sl@0: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE sl@0: * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE sl@0: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL sl@0: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS sl@0: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) sl@0: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT sl@0: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY sl@0: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF sl@0: * SUCH DAMAGE. sl@0: * sl@0: * The licence and distribution terms for any publically available version or sl@0: * derivative of this code cannot be changed. i.e. this code cannot simply be sl@0: * copied and put under another distribution licence sl@0: * [including the GNU Public Licence.] sl@0: */ sl@0: sl@0: #ifndef HEADER_DES_LOCL_H sl@0: #define HEADER_DES_LOCL_H sl@0: sl@0: #include sl@0: sl@0: #if defined(OPENSSL_SYS_WIN32) || defined(OPENSSL_SYS_WIN16) sl@0: #ifndef OPENSSL_SYS_MSDOS sl@0: #define OPENSSL_SYS_MSDOS sl@0: #endif sl@0: #endif sl@0: sl@0: #include sl@0: #include sl@0: sl@0: #ifndef OPENSSL_SYS_MSDOS sl@0: #if !defined(OPENSSL_SYS_VMS) || defined(__DECC) sl@0: #ifdef OPENSSL_UNISTD sl@0: # include OPENSSL_UNISTD sl@0: #else sl@0: # include sl@0: #endif sl@0: #include sl@0: #endif sl@0: #endif sl@0: #include sl@0: sl@0: #ifdef OPENSSL_SYS_MSDOS /* Visual C++ 2.1 (Windows NT/95) */ sl@0: #include sl@0: #include sl@0: #include sl@0: #include sl@0: #endif sl@0: sl@0: #if defined(__STDC__) || defined(OPENSSL_SYS_VMS) || defined(M_XENIX) || defined(OPENSSL_SYS_MSDOS) sl@0: #include sl@0: #endif sl@0: sl@0: #ifdef OPENSSL_BUILD_SHLIBCRYPTO sl@0: # undef OPENSSL_EXTERN sl@0: # define OPENSSL_EXTERN OPENSSL_EXPORT sl@0: #endif sl@0: sl@0: #define ITERATIONS 16 sl@0: #define HALF_ITERATIONS 8 sl@0: sl@0: /* used in des_read and des_write */ sl@0: #define MAXWRITE (1024*16) sl@0: #define BSIZE (MAXWRITE+4) sl@0: sl@0: #define c2l(c,l) (l =((DES_LONG)(*((c)++))) , \ sl@0: l|=((DES_LONG)(*((c)++)))<< 8L, \ sl@0: l|=((DES_LONG)(*((c)++)))<<16L, \ sl@0: l|=((DES_LONG)(*((c)++)))<<24L) sl@0: sl@0: /* NOTE - c is not incremented as per c2l */ sl@0: #define c2ln(c,l1,l2,n) { \ sl@0: c+=n; \ sl@0: l1=l2=0; \ sl@0: switch (n) { \ sl@0: case 8: l2 =((DES_LONG)(*(--(c))))<<24L; \ sl@0: case 7: l2|=((DES_LONG)(*(--(c))))<<16L; \ sl@0: case 6: l2|=((DES_LONG)(*(--(c))))<< 8L; \ sl@0: case 5: l2|=((DES_LONG)(*(--(c)))); \ sl@0: case 4: l1 =((DES_LONG)(*(--(c))))<<24L; \ sl@0: case 3: l1|=((DES_LONG)(*(--(c))))<<16L; \ sl@0: case 2: l1|=((DES_LONG)(*(--(c))))<< 8L; \ sl@0: case 1: l1|=((DES_LONG)(*(--(c)))); \ sl@0: } \ sl@0: } sl@0: sl@0: #define l2c(l,c) (*((c)++)=(unsigned char)(((l) )&0xff), \ sl@0: *((c)++)=(unsigned char)(((l)>> 8L)&0xff), \ sl@0: *((c)++)=(unsigned char)(((l)>>16L)&0xff), \ sl@0: *((c)++)=(unsigned char)(((l)>>24L)&0xff)) sl@0: sl@0: /* replacements for htonl and ntohl since I have no idea what to do sl@0: * when faced with machines with 8 byte longs. */ sl@0: #define HDRSIZE 4 sl@0: sl@0: #define n2l(c,l) (l =((DES_LONG)(*((c)++)))<<24L, \ sl@0: l|=((DES_LONG)(*((c)++)))<<16L, \ sl@0: l|=((DES_LONG)(*((c)++)))<< 8L, \ sl@0: l|=((DES_LONG)(*((c)++)))) sl@0: sl@0: #define l2n(l,c) (*((c)++)=(unsigned char)(((l)>>24L)&0xff), \ sl@0: *((c)++)=(unsigned char)(((l)>>16L)&0xff), \ sl@0: *((c)++)=(unsigned char)(((l)>> 8L)&0xff), \ sl@0: *((c)++)=(unsigned char)(((l) )&0xff)) sl@0: sl@0: /* NOTE - c is not incremented as per l2c */ sl@0: #define l2cn(l1,l2,c,n) { \ sl@0: c+=n; \ sl@0: switch (n) { \ sl@0: case 8: *(--(c))=(unsigned char)(((l2)>>24L)&0xff); \ sl@0: case 7: *(--(c))=(unsigned char)(((l2)>>16L)&0xff); \ sl@0: case 6: *(--(c))=(unsigned char)(((l2)>> 8L)&0xff); \ sl@0: case 5: *(--(c))=(unsigned char)(((l2) )&0xff); \ sl@0: case 4: *(--(c))=(unsigned char)(((l1)>>24L)&0xff); \ sl@0: case 3: *(--(c))=(unsigned char)(((l1)>>16L)&0xff); \ sl@0: case 2: *(--(c))=(unsigned char)(((l1)>> 8L)&0xff); \ sl@0: case 1: *(--(c))=(unsigned char)(((l1) )&0xff); \ sl@0: } \ sl@0: } sl@0: sl@0: #if (defined(OPENSSL_SYS_WIN32) && defined(_MSC_VER)) || defined(__ICC) sl@0: #define ROTATE(a,n) (_lrotr(a,n)) sl@0: #elif defined(__GNUC__) && __GNUC__>=2 && !defined(__STRICT_ANSI__) && !defined(OPENSSL_NO_ASM) && !defined(OPENSSL_NO_INLINE_ASM) && !defined(PEDANTIC) sl@0: # if defined(__i386) || defined(__i386__) || defined(__x86_64) || defined(__x86_64__) sl@0: # define ROTATE(a,n) ({ register unsigned int ret; \ sl@0: asm ("rorl %1,%0" \ sl@0: : "=r"(ret) \ sl@0: : "I"(n),"0"(a) \ sl@0: : "cc"); \ sl@0: ret; \ sl@0: }) sl@0: # endif sl@0: #endif sl@0: #ifndef ROTATE sl@0: #define ROTATE(a,n) (((a)>>(n))+((a)<<(32-(n)))) sl@0: #endif sl@0: sl@0: /* Don't worry about the LOAD_DATA() stuff, that is used by sl@0: * fcrypt() to add it's little bit to the front */ sl@0: sl@0: #ifdef DES_FCRYPT sl@0: sl@0: #define LOAD_DATA_tmp(R,S,u,t,E0,E1) \ sl@0: { DES_LONG tmp; LOAD_DATA(R,S,u,t,E0,E1,tmp); } sl@0: sl@0: #define LOAD_DATA(R,S,u,t,E0,E1,tmp) \ sl@0: t=R^(R>>16L); \ sl@0: u=t&E0; t&=E1; \ sl@0: tmp=(u<<16); u^=R^s[S ]; u^=tmp; \ sl@0: tmp=(t<<16); t^=R^s[S+1]; t^=tmp sl@0: #else sl@0: #define LOAD_DATA_tmp(a,b,c,d,e,f) LOAD_DATA(a,b,c,d,e,f,g) sl@0: #define LOAD_DATA(R,S,u,t,E0,E1,tmp) \ sl@0: u=R^s[S ]; \ sl@0: t=R^s[S+1] sl@0: #endif sl@0: sl@0: /* The changes to this macro may help or hinder, depending on the sl@0: * compiler and the architecture. gcc2 always seems to do well :-). sl@0: * Inspired by Dana How sl@0: * DO NOT use the alternative version on machines with 8 byte longs. sl@0: * It does not seem to work on the Alpha, even when DES_LONG is 4 sl@0: * bytes, probably an issue of accessing non-word aligned objects :-( */ sl@0: #ifdef DES_PTR sl@0: sl@0: /* It recently occurred to me that 0^0^0^0^0^0^0 == 0, so there sl@0: * is no reason to not xor all the sub items together. This potentially sl@0: * saves a register since things can be xored directly into L */ sl@0: sl@0: #if defined(DES_RISC1) || defined(DES_RISC2) sl@0: #ifdef DES_RISC1 sl@0: #define D_ENCRYPT(LL,R,S) { \ sl@0: unsigned int u1,u2,u3; \ sl@0: LOAD_DATA(R,S,u,t,E0,E1,u1); \ sl@0: u2=(int)u>>8L; \ sl@0: u1=(int)u&0xfc; \ sl@0: u2&=0xfc; \ sl@0: t=ROTATE(t,4); \ sl@0: u>>=16L; \ sl@0: LL^= *(const DES_LONG *)(des_SP +u1); \ sl@0: LL^= *(const DES_LONG *)(des_SP+0x200+u2); \ sl@0: u3=(int)(u>>8L); \ sl@0: u1=(int)u&0xfc; \ sl@0: u3&=0xfc; \ sl@0: LL^= *(const DES_LONG *)(des_SP+0x400+u1); \ sl@0: LL^= *(const DES_LONG *)(des_SP+0x600+u3); \ sl@0: u2=(int)t>>8L; \ sl@0: u1=(int)t&0xfc; \ sl@0: u2&=0xfc; \ sl@0: t>>=16L; \ sl@0: LL^= *(const DES_LONG *)(des_SP+0x100+u1); \ sl@0: LL^= *(const DES_LONG *)(des_SP+0x300+u2); \ sl@0: u3=(int)t>>8L; \ sl@0: u1=(int)t&0xfc; \ sl@0: u3&=0xfc; \ sl@0: LL^= *(const DES_LONG *)(des_SP+0x500+u1); \ sl@0: LL^= *(const DES_LONG *)(des_SP+0x700+u3); } sl@0: #endif sl@0: #ifdef DES_RISC2 sl@0: #define D_ENCRYPT(LL,R,S) { \ sl@0: unsigned int u1,u2,s1,s2; \ sl@0: LOAD_DATA(R,S,u,t,E0,E1,u1); \ sl@0: u2=(int)u>>8L; \ sl@0: u1=(int)u&0xfc; \ sl@0: u2&=0xfc; \ sl@0: t=ROTATE(t,4); \ sl@0: LL^= *(const DES_LONG *)(des_SP +u1); \ sl@0: LL^= *(const DES_LONG *)(des_SP+0x200+u2); \ sl@0: s1=(int)(u>>16L); \ sl@0: s2=(int)(u>>24L); \ sl@0: s1&=0xfc; \ sl@0: s2&=0xfc; \ sl@0: LL^= *(const DES_LONG *)(des_SP+0x400+s1); \ sl@0: LL^= *(const DES_LONG *)(des_SP+0x600+s2); \ sl@0: u2=(int)t>>8L; \ sl@0: u1=(int)t&0xfc; \ sl@0: u2&=0xfc; \ sl@0: LL^= *(const DES_LONG *)(des_SP+0x100+u1); \ sl@0: LL^= *(const DES_LONG *)(des_SP+0x300+u2); \ sl@0: s1=(int)(t>>16L); \ sl@0: s2=(int)(t>>24L); \ sl@0: s1&=0xfc; \ sl@0: s2&=0xfc; \ sl@0: LL^= *(const DES_LONG *)(des_SP+0x500+s1); \ sl@0: LL^= *(const DES_LONG *)(des_SP+0x700+s2); } sl@0: #endif sl@0: #else sl@0: #define D_ENCRYPT(LL,R,S) { \ sl@0: LOAD_DATA_tmp(R,S,u,t,E0,E1); \ sl@0: t=ROTATE(t,4); \ sl@0: LL^= \ sl@0: *(const DES_LONG *)(des_SP +((u )&0xfc))^ \ sl@0: *(const DES_LONG *)(des_SP+0x200+((u>> 8L)&0xfc))^ \ sl@0: *(const DES_LONG *)(des_SP+0x400+((u>>16L)&0xfc))^ \ sl@0: *(const DES_LONG *)(des_SP+0x600+((u>>24L)&0xfc))^ \ sl@0: *(const DES_LONG *)(des_SP+0x100+((t )&0xfc))^ \ sl@0: *(const DES_LONG *)(des_SP+0x300+((t>> 8L)&0xfc))^ \ sl@0: *(const DES_LONG *)(des_SP+0x500+((t>>16L)&0xfc))^ \ sl@0: *(const DES_LONG *)(des_SP+0x700+((t>>24L)&0xfc)); } sl@0: #endif sl@0: sl@0: #else /* original version */ sl@0: sl@0: #if defined(DES_RISC1) || defined(DES_RISC2) sl@0: #ifdef DES_RISC1 sl@0: #define D_ENCRYPT(LL,R,S) {\ sl@0: unsigned int u1,u2,u3; \ sl@0: LOAD_DATA(R,S,u,t,E0,E1,u1); \ sl@0: u>>=2L; \ sl@0: t=ROTATE(t,6); \ sl@0: u2=(int)u>>8L; \ sl@0: u1=(int)u&0x3f; \ sl@0: u2&=0x3f; \ sl@0: u>>=16L; \ sl@0: LL^=DES_SPtrans[0][u1]; \ sl@0: LL^=DES_SPtrans[2][u2]; \ sl@0: u3=(int)u>>8L; \ sl@0: u1=(int)u&0x3f; \ sl@0: u3&=0x3f; \ sl@0: LL^=DES_SPtrans[4][u1]; \ sl@0: LL^=DES_SPtrans[6][u3]; \ sl@0: u2=(int)t>>8L; \ sl@0: u1=(int)t&0x3f; \ sl@0: u2&=0x3f; \ sl@0: t>>=16L; \ sl@0: LL^=DES_SPtrans[1][u1]; \ sl@0: LL^=DES_SPtrans[3][u2]; \ sl@0: u3=(int)t>>8L; \ sl@0: u1=(int)t&0x3f; \ sl@0: u3&=0x3f; \ sl@0: LL^=DES_SPtrans[5][u1]; \ sl@0: LL^=DES_SPtrans[7][u3]; } sl@0: #endif sl@0: #ifdef DES_RISC2 sl@0: #define D_ENCRYPT(LL,R,S) {\ sl@0: unsigned int u1,u2,s1,s2; \ sl@0: LOAD_DATA(R,S,u,t,E0,E1,u1); \ sl@0: u>>=2L; \ sl@0: t=ROTATE(t,6); \ sl@0: u2=(int)u>>8L; \ sl@0: u1=(int)u&0x3f; \ sl@0: u2&=0x3f; \ sl@0: LL^=DES_SPtrans[0][u1]; \ sl@0: LL^=DES_SPtrans[2][u2]; \ sl@0: s1=(int)u>>16L; \ sl@0: s2=(int)u>>24L; \ sl@0: s1&=0x3f; \ sl@0: s2&=0x3f; \ sl@0: LL^=DES_SPtrans[4][s1]; \ sl@0: LL^=DES_SPtrans[6][s2]; \ sl@0: u2=(int)t>>8L; \ sl@0: u1=(int)t&0x3f; \ sl@0: u2&=0x3f; \ sl@0: LL^=DES_SPtrans[1][u1]; \ sl@0: LL^=DES_SPtrans[3][u2]; \ sl@0: s1=(int)t>>16; \ sl@0: s2=(int)t>>24L; \ sl@0: s1&=0x3f; \ sl@0: s2&=0x3f; \ sl@0: LL^=DES_SPtrans[5][s1]; \ sl@0: LL^=DES_SPtrans[7][s2]; } sl@0: #endif sl@0: sl@0: #else sl@0: sl@0: #define D_ENCRYPT(LL,R,S) {\ sl@0: LOAD_DATA_tmp(R,S,u,t,E0,E1); \ sl@0: t=ROTATE(t,4); \ sl@0: LL^=\ sl@0: DES_SPtrans[0][(u>> 2L)&0x3f]^ \ sl@0: DES_SPtrans[2][(u>>10L)&0x3f]^ \ sl@0: DES_SPtrans[4][(u>>18L)&0x3f]^ \ sl@0: DES_SPtrans[6][(u>>26L)&0x3f]^ \ sl@0: DES_SPtrans[1][(t>> 2L)&0x3f]^ \ sl@0: DES_SPtrans[3][(t>>10L)&0x3f]^ \ sl@0: DES_SPtrans[5][(t>>18L)&0x3f]^ \ sl@0: DES_SPtrans[7][(t>>26L)&0x3f]; } sl@0: #endif sl@0: #endif sl@0: sl@0: /* IP and FP sl@0: * The problem is more of a geometric problem that random bit fiddling. sl@0: 0 1 2 3 4 5 6 7 62 54 46 38 30 22 14 6 sl@0: 8 9 10 11 12 13 14 15 60 52 44 36 28 20 12 4 sl@0: 16 17 18 19 20 21 22 23 58 50 42 34 26 18 10 2 sl@0: 24 25 26 27 28 29 30 31 to 56 48 40 32 24 16 8 0 sl@0: sl@0: 32 33 34 35 36 37 38 39 63 55 47 39 31 23 15 7 sl@0: 40 41 42 43 44 45 46 47 61 53 45 37 29 21 13 5 sl@0: 48 49 50 51 52 53 54 55 59 51 43 35 27 19 11 3 sl@0: 56 57 58 59 60 61 62 63 57 49 41 33 25 17 9 1 sl@0: sl@0: The output has been subject to swaps of the form sl@0: 0 1 -> 3 1 but the odd and even bits have been put into sl@0: 2 3 2 0 sl@0: different words. The main trick is to remember that sl@0: t=((l>>size)^r)&(mask); sl@0: r^=t; sl@0: l^=(t<>(n))^(b))&(m)),\ sl@0: (b)^=(t),\ sl@0: (a)^=((t)<<(n))) sl@0: sl@0: #define IP(l,r) \ sl@0: { \ sl@0: register DES_LONG tt; \ sl@0: PERM_OP(r,l,tt, 4,0x0f0f0f0fL); \ sl@0: PERM_OP(l,r,tt,16,0x0000ffffL); \ sl@0: PERM_OP(r,l,tt, 2,0x33333333L); \ sl@0: PERM_OP(l,r,tt, 8,0x00ff00ffL); \ sl@0: PERM_OP(r,l,tt, 1,0x55555555L); \ sl@0: } sl@0: sl@0: #define FP(l,r) \ sl@0: { \ sl@0: register DES_LONG tt; \ sl@0: PERM_OP(l,r,tt, 1,0x55555555L); \ sl@0: PERM_OP(r,l,tt, 8,0x00ff00ffL); \ sl@0: PERM_OP(l,r,tt, 2,0x33333333L); \ sl@0: PERM_OP(r,l,tt,16,0x0000ffffL); \ sl@0: PERM_OP(l,r,tt, 4,0x0f0f0f0fL); \ sl@0: } sl@0: sl@0: extern const DES_LONG DES_SPtrans[8][64]; sl@0: sl@0: IMPORT_C void fcrypt_body(DES_LONG *out,DES_key_schedule *ks, sl@0: DES_LONG Eswap0, DES_LONG Eswap1); sl@0: #endif