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Diffstat (limited to 'crypto/cast/cast_lcl.h')
| -rw-r--r-- | crypto/cast/cast_lcl.h | 227 |
1 files changed, 227 insertions, 0 deletions
diff --git a/crypto/cast/cast_lcl.h b/crypto/cast/cast_lcl.h new file mode 100644 index 000000000000..e756021a33dc --- /dev/null +++ b/crypto/cast/cast_lcl.h @@ -0,0 +1,227 @@ +/* crypto/cast/cast_lcl.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 "e_os.h" + +#ifdef OPENSSL_SYS_WIN32 +#include <stdlib.h> +#endif + + +#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) +#define ROTL(a,n) (_lrotl(a,n)) +#else +#define ROTL(a,n) ((((a)<<(n))&0xffffffffL)|((a)>>(32-(n)))) +#endif + +#define C_M 0x3fc +#define C_0 22L +#define C_1 14L +#define C_2 6L +#define C_3 2L /* left shift */ + +/* The rotate has an extra 16 added to it to help the x86 asm */ +#if defined(CAST_PTR) +#define E_CAST(n,key,L,R,OP1,OP2,OP3) \ + { \ + int i; \ + t=(key[n*2] OP1 R)&0xffffffffL; \ + i=key[n*2+1]; \ + t=ROTL(t,i); \ + L^= (((((*(CAST_LONG *)((unsigned char *) \ + CAST_S_table0+((t>>C_2)&C_M)) OP2 \ + *(CAST_LONG *)((unsigned char *) \ + CAST_S_table1+((t<<C_3)&C_M)))&0xffffffffL) OP3 \ + *(CAST_LONG *)((unsigned char *) \ + CAST_S_table2+((t>>C_0)&C_M)))&0xffffffffL) OP1 \ + *(CAST_LONG *)((unsigned char *) \ + CAST_S_table3+((t>>C_1)&C_M)))&0xffffffffL; \ + } +#elif defined(CAST_PTR2) +#define E_CAST(n,key,L,R,OP1,OP2,OP3) \ + { \ + int i; \ + CAST_LONG u,v,w; \ + w=(key[n*2] OP1 R)&0xffffffffL; \ + i=key[n*2+1]; \ + w=ROTL(w,i); \ + u=w>>C_2; \ + v=w<<C_3; \ + u&=C_M; \ + v&=C_M; \ + t= *(CAST_LONG *)((unsigned char *)CAST_S_table0+u); \ + u=w>>C_0; \ + t=(t OP2 *(CAST_LONG *)((unsigned char *)CAST_S_table1+v))&0xffffffffL;\ + v=w>>C_1; \ + u&=C_M; \ + v&=C_M; \ + t=(t OP3 *(CAST_LONG *)((unsigned char *)CAST_S_table2+u)&0xffffffffL);\ + t=(t OP1 *(CAST_LONG *)((unsigned char *)CAST_S_table3+v)&0xffffffffL);\ + L^=(t&0xffffffff); \ + } +#else +#define E_CAST(n,key,L,R,OP1,OP2,OP3) \ + { \ + CAST_LONG a,b,c,d; \ + t=(key[n*2] OP1 R)&0xffffffff; \ + t=ROTL(t,(key[n*2+1])); \ + a=CAST_S_table0[(t>> 8)&0xff]; \ + b=CAST_S_table1[(t )&0xff]; \ + c=CAST_S_table2[(t>>24)&0xff]; \ + d=CAST_S_table3[(t>>16)&0xff]; \ + L^=(((((a OP2 b)&0xffffffffL) OP3 c)&0xffffffffL) OP1 d)&0xffffffffL; \ + } +#endif + +extern const CAST_LONG CAST_S_table0[256]; +extern const CAST_LONG CAST_S_table1[256]; +extern const CAST_LONG CAST_S_table2[256]; +extern const CAST_LONG CAST_S_table3[256]; +extern const CAST_LONG CAST_S_table4[256]; +extern const CAST_LONG CAST_S_table5[256]; +extern const CAST_LONG CAST_S_table6[256]; +extern const CAST_LONG CAST_S_table7[256]; |