path: root/contrib/libs/openssl/crypto/sha/sha_local.h

/* 
 * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved. 
 * 
 * Licensed under the OpenSSL license (the "License").  You may not use 
 * this file except in compliance with the License.  You can obtain a copy 
 * in the file LICENSE in the source distribution or at 
 * https://www.openssl.org/source/license.html 
 */ 
 
#include <stdlib.h> 
#include <string.h> 
 
#include <openssl/opensslconf.h> 
#include <openssl/sha.h> 
 
#define DATA_ORDER_IS_BIG_ENDIAN 
 
#define HASH_LONG               SHA_LONG 
#define HASH_CTX                SHA_CTX 
#define HASH_CBLOCK             SHA_CBLOCK 
#define HASH_MAKE_STRING(c,s)   do {    \ 
        unsigned long ll;               \ 
        ll=(c)->h0; (void)HOST_l2c(ll,(s));     \ 
        ll=(c)->h1; (void)HOST_l2c(ll,(s));     \ 
        ll=(c)->h2; (void)HOST_l2c(ll,(s));     \ 
        ll=(c)->h3; (void)HOST_l2c(ll,(s));     \ 
        ll=(c)->h4; (void)HOST_l2c(ll,(s));     \ 
        } while (0) 
 
#define HASH_UPDATE                     SHA1_Update 
#define HASH_TRANSFORM                  SHA1_Transform 
#define HASH_FINAL                      SHA1_Final 
#define HASH_INIT                       SHA1_Init 
#define HASH_BLOCK_DATA_ORDER           sha1_block_data_order 
#define Xupdate(a,ix,ia,ib,ic,id)       ( (a)=(ia^ib^ic^id),    \ 
                                          ix=(a)=ROTATE((a),1)  \ 
                                        ) 
 
#ifndef SHA1_ASM 
static void sha1_block_data_order(SHA_CTX *c, const void *p, size_t num); 
#else 
void sha1_block_data_order(SHA_CTX *c, const void *p, size_t num); 
#endif 
 
#include "crypto/md32_common.h" 
 
#define INIT_DATA_h0 0x67452301UL 
#define INIT_DATA_h1 0xefcdab89UL 
#define INIT_DATA_h2 0x98badcfeUL 
#define INIT_DATA_h3 0x10325476UL 
#define INIT_DATA_h4 0xc3d2e1f0UL 
 
int HASH_INIT(SHA_CTX *c) 
{ 
    memset(c, 0, sizeof(*c)); 
    c->h0 = INIT_DATA_h0; 
    c->h1 = INIT_DATA_h1; 
    c->h2 = INIT_DATA_h2; 
    c->h3 = INIT_DATA_h3; 
    c->h4 = INIT_DATA_h4; 
    return 1; 
} 
 
#define K_00_19 0x5a827999UL 
#define K_20_39 0x6ed9eba1UL 
#define K_40_59 0x8f1bbcdcUL 
#define K_60_79 0xca62c1d6UL 
 
/* 
 * As pointed out by Wei Dai, F() below can be simplified to the code in 
 * F_00_19.  Wei attributes these optimizations to Peter Gutmann's SHS code, 
 * and he attributes it to Rich Schroeppel. 
 *      #define F(x,y,z) (((x) & (y)) | ((~(x)) & (z))) 
 * I've just become aware of another tweak to be made, again from Wei Dai, 
 * in F_40_59, (x&a)|(y&a) -> (x|y)&a 
 */ 
#define F_00_19(b,c,d)  ((((c) ^ (d)) & (b)) ^ (d)) 
#define F_20_39(b,c,d)  ((b) ^ (c) ^ (d)) 
#define F_40_59(b,c,d)  (((b) & (c)) | (((b)|(c)) & (d))) 
#define F_60_79(b,c,d)  F_20_39(b,c,d) 
 
#ifndef OPENSSL_SMALL_FOOTPRINT 
 
# define BODY_00_15(i,a,b,c,d,e,f,xi) \ 
        (f)=xi+(e)+K_00_19+ROTATE((a),5)+F_00_19((b),(c),(d)); \ 
        (b)=ROTATE((b),30); 
 
# define BODY_16_19(i,a,b,c,d,e,f,xi,xa,xb,xc,xd) \ 
        Xupdate(f,xi,xa,xb,xc,xd); \ 
        (f)+=(e)+K_00_19+ROTATE((a),5)+F_00_19((b),(c),(d)); \ 
        (b)=ROTATE((b),30); 
 
# define BODY_20_31(i,a,b,c,d,e,f,xi,xa,xb,xc,xd) \ 
        Xupdate(f,xi,xa,xb,xc,xd); \ 
        (f)+=(e)+K_20_39+ROTATE((a),5)+F_20_39((b),(c),(d)); \ 
        (b)=ROTATE((b),30); 
 
# define BODY_32_39(i,a,b,c,d,e,f,xa,xb,xc,xd) \ 
        Xupdate(f,xa,xa,xb,xc,xd); \ 
        (f)+=(e)+K_20_39+ROTATE((a),5)+F_20_39((b),(c),(d)); \ 
        (b)=ROTATE((b),30); 
 
# define BODY_40_59(i,a,b,c,d,e,f,xa,xb,xc,xd) \ 
        Xupdate(f,xa,xa,xb,xc,xd); \ 
        (f)+=(e)+K_40_59+ROTATE((a),5)+F_40_59((b),(c),(d)); \ 
        (b)=ROTATE((b),30); 
 
# define BODY_60_79(i,a,b,c,d,e,f,xa,xb,xc,xd) \ 
        Xupdate(f,xa,xa,xb,xc,xd); \ 
        (f)=xa+(e)+K_60_79+ROTATE((a),5)+F_60_79((b),(c),(d)); \ 
        (b)=ROTATE((b),30); 
 
# ifdef X 
#  undef X 
# endif 
# ifndef MD32_XARRAY 
  /* 
   * Originally X was an array. As it's automatic it's natural 
   * to expect RISC compiler to accommodate at least part of it in 
   * the register bank, isn't it? Unfortunately not all compilers 
   * "find" this expectation reasonable:-( On order to make such 
   * compilers generate better code I replace X[] with a bunch of 
   * X0, X1, etc. See the function body below... 
   */ 
#  define X(i)   XX##i 
# else 
  /* 
   * However! Some compilers (most notably HP C) get overwhelmed by 
   * that many local variables so that we have to have the way to 
   * fall down to the original behavior. 
   */ 
#  define X(i)   XX[i] 
# endif 
 
# if !defined(SHA1_ASM) 
static void HASH_BLOCK_DATA_ORDER(SHA_CTX *c, const void *p, size_t num) 
{ 
    const unsigned char *data = p; 
    register unsigned MD32_REG_T A, B, C, D, E, T, l; 
#  ifndef MD32_XARRAY 
    unsigned MD32_REG_T XX0, XX1, XX2, XX3, XX4, XX5, XX6, XX7, 
        XX8, XX9, XX10, XX11, XX12, XX13, XX14, XX15; 
#  else 
    SHA_LONG XX[16]; 
#  endif 
 
    A = c->h0; 
    B = c->h1; 
    C = c->h2; 
    D = c->h3; 
    E = c->h4; 
 
    for (;;) { 
        const union { 
            long one; 
            char little; 
        } is_endian = { 
            1 
        }; 
 
        if (!is_endian.little && sizeof(SHA_LONG) == 4 
            && ((size_t)p % 4) == 0) { 
            const SHA_LONG *W = (const SHA_LONG *)data; 
 
            X(0) = W[0]; 
            X(1) = W[1]; 
            BODY_00_15(0, A, B, C, D, E, T, X(0)); 
            X(2) = W[2]; 
            BODY_00_15(1, T, A, B, C, D, E, X(1)); 
            X(3) = W[3]; 
            BODY_00_15(2, E, T, A, B, C, D, X(2)); 
            X(4) = W[4]; 
            BODY_00_15(3, D, E, T, A, B, C, X(3)); 
            X(5) = W[5]; 
            BODY_00_15(4, C, D, E, T, A, B, X(4)); 
            X(6) = W[6]; 
            BODY_00_15(5, B, C, D, E, T, A, X(5)); 
            X(7) = W[7]; 
            BODY_00_15(6, A, B, C, D, E, T, X(6)); 
            X(8) = W[8]; 
            BODY_00_15(7, T, A, B, C, D, E, X(7)); 
            X(9) = W[9]; 
            BODY_00_15(8, E, T, A, B, C, D, X(8)); 
            X(10) = W[10]; 
            BODY_00_15(9, D, E, T, A, B, C, X(9)); 
            X(11) = W[11]; 
            BODY_00_15(10, C, D, E, T, A, B, X(10)); 
            X(12) = W[12]; 
            BODY_00_15(11, B, C, D, E, T, A, X(11)); 
            X(13) = W[13]; 
            BODY_00_15(12, A, B, C, D, E, T, X(12)); 
            X(14) = W[14]; 
            BODY_00_15(13, T, A, B, C, D, E, X(13)); 
            X(15) = W[15]; 
            BODY_00_15(14, E, T, A, B, C, D, X(14)); 
            BODY_00_15(15, D, E, T, A, B, C, X(15)); 
 
            data += SHA_CBLOCK; 
        } else { 
            (void)HOST_c2l(data, l); 
            X(0) = l; 
            (void)HOST_c2l(data, l); 
            X(1) = l; 
            BODY_00_15(0, A, B, C, D, E, T, X(0)); 
            (void)HOST_c2l(data, l); 
            X(2) = l; 
            BODY_00_15(1, T, A, B, C, D, E, X(1)); 
            (void)HOST_c2l(data, l); 
            X(3) = l; 
            BODY_00_15(2, E, T, A, B, C, D, X(2)); 
            (void)HOST_c2l(data, l); 
            X(4) = l; 
            BODY_00_15(3, D, E, T, A, B, C, X(3)); 
            (void)HOST_c2l(data, l); 
            X(5) = l; 
            BODY_00_15(4, C, D, E, T, A, B, X(4)); 
            (void)HOST_c2l(data, l); 
            X(6) = l; 
            BODY_00_15(5, B, C, D, E, T, A, X(5)); 
            (void)HOST_c2l(data, l); 
            X(7) = l; 
            BODY_00_15(6, A, B, C, D, E, T, X(6)); 
            (void)HOST_c2l(data, l); 
            X(8) = l; 
            BODY_00_15(7, T, A, B, C, D, E, X(7)); 
            (void)HOST_c2l(data, l); 
            X(9) = l; 
            BODY_00_15(8, E, T, A, B, C, D, X(8)); 
            (void)HOST_c2l(data, l); 
            X(10) = l; 
            BODY_00_15(9, D, E, T, A, B, C, X(9)); 
            (void)HOST_c2l(data, l); 
            X(11) = l; 
            BODY_00_15(10, C, D, E, T, A, B, X(10)); 
            (void)HOST_c2l(data, l); 
            X(12) = l; 
            BODY_00_15(11, B, C, D, E, T, A, X(11)); 
            (void)HOST_c2l(data, l); 
            X(13) = l; 
            BODY_00_15(12, A, B, C, D, E, T, X(12)); 
            (void)HOST_c2l(data, l); 
            X(14) = l; 
            BODY_00_15(13, T, A, B, C, D, E, X(13)); 
            (void)HOST_c2l(data, l); 
            X(15) = l; 
            BODY_00_15(14, E, T, A, B, C, D, X(14)); 
            BODY_00_15(15, D, E, T, A, B, C, X(15)); 
        } 
 
        BODY_16_19(16, C, D, E, T, A, B, X(0), X(0), X(2), X(8), X(13)); 
        BODY_16_19(17, B, C, D, E, T, A, X(1), X(1), X(3), X(9), X(14)); 
        BODY_16_19(18, A, B, C, D, E, T, X(2), X(2), X(4), X(10), X(15)); 
        BODY_16_19(19, T, A, B, C, D, E, X(3), X(3), X(5), X(11), X(0)); 
 
        BODY_20_31(20, E, T, A, B, C, D, X(4), X(4), X(6), X(12), X(1)); 
        BODY_20_31(21, D, E, T, A, B, C, X(5), X(5), X(7), X(13), X(2)); 
        BODY_20_31(22, C, D, E, T, A, B, X(6), X(6), X(8), X(14), X(3)); 
        BODY_20_31(23, B, C, D, E, T, A, X(7), X(7), X(9), X(15), X(4)); 
        BODY_20_31(24, A, B, C, D, E, T, X(8), X(8), X(10), X(0), X(5)); 
        BODY_20_31(25, T, A, B, C, D, E, X(9), X(9), X(11), X(1), X(6)); 
        BODY_20_31(26, E, T, A, B, C, D, X(10), X(10), X(12), X(2), X(7)); 
        BODY_20_31(27, D, E, T, A, B, C, X(11), X(11), X(13), X(3), X(8)); 
        BODY_20_31(28, C, D, E, T, A, B, X(12), X(12), X(14), X(4), X(9)); 
        BODY_20_31(29, B, C, D, E, T, A, X(13), X(13), X(15), X(5), X(10)); 
        BODY_20_31(30, A, B, C, D, E, T, X(14), X(14), X(0), X(6), X(11)); 
        BODY_20_31(31, T, A, B, C, D, E, X(15), X(15), X(1), X(7), X(12)); 
 
        BODY_32_39(32, E, T, A, B, C, D, X(0), X(2), X(8), X(13)); 
        BODY_32_39(33, D, E, T, A, B, C, X(1), X(3), X(9), X(14)); 
        BODY_32_39(34, C, D, E, T, A, B, X(2), X(4), X(10), X(15)); 
        BODY_32_39(35, B, C, D, E, T, A, X(3), X(5), X(11), X(0)); 
        BODY_32_39(36, A, B, C, D, E, T, X(4), X(6), X(12), X(1)); 
        BODY_32_39(37, T, A, B, C, D, E, X(5), X(7), X(13), X(2)); 
        BODY_32_39(38, E, T, A, B, C, D, X(6), X(8), X(14), X(3)); 
        BODY_32_39(39, D, E, T, A, B, C, X(7), X(9), X(15), X(4)); 
 
        BODY_40_59(40, C, D, E, T, A, B, X(8), X(10), X(0), X(5)); 
        BODY_40_59(41, B, C, D, E, T, A, X(9), X(11), X(1), X(6)); 
        BODY_40_59(42, A, B, C, D, E, T, X(10), X(12), X(2), X(7)); 
        BODY_40_59(43, T, A, B, C, D, E, X(11), X(13), X(3), X(8)); 
        BODY_40_59(44, E, T, A, B, C, D, X(12), X(14), X(4), X(9)); 
        BODY_40_59(45, D, E, T, A, B, C, X(13), X(15), X(5), X(10)); 
        BODY_40_59(46, C, D, E, T, A, B, X(14), X(0), X(6), X(11)); 
        BODY_40_59(47, B, C, D, E, T, A, X(15), X(1), X(7), X(12)); 
        BODY_40_59(48, A, B, C, D, E, T, X(0), X(2), X(8), X(13)); 
        BODY_40_59(49, T, A, B, C, D, E, X(1), X(3), X(9), X(14)); 
        BODY_40_59(50, E, T, A, B, C, D, X(2), X(4), X(10), X(15)); 
        BODY_40_59(51, D, E, T, A, B, C, X(3), X(5), X(11), X(0)); 
        BODY_40_59(52, C, D, E, T, A, B, X(4), X(6), X(12), X(1)); 
        BODY_40_59(53, B, C, D, E, T, A, X(5), X(7), X(13), X(2)); 
        BODY_40_59(54, A, B, C, D, E, T, X(6), X(8), X(14), X(3)); 
        BODY_40_59(55, T, A, B, C, D, E, X(7), X(9), X(15), X(4)); 
        BODY_40_59(56, E, T, A, B, C, D, X(8), X(10), X(0), X(5)); 
        BODY_40_59(57, D, E, T, A, B, C, X(9), X(11), X(1), X(6)); 
        BODY_40_59(58, C, D, E, T, A, B, X(10), X(12), X(2), X(7)); 
        BODY_40_59(59, B, C, D, E, T, A, X(11), X(13), X(3), X(8)); 
 
        BODY_60_79(60, A, B, C, D, E, T, X(12), X(14), X(4), X(9)); 
        BODY_60_79(61, T, A, B, C, D, E, X(13), X(15), X(5), X(10)); 
        BODY_60_79(62, E, T, A, B, C, D, X(14), X(0), X(6), X(11)); 
        BODY_60_79(63, D, E, T, A, B, C, X(15), X(1), X(7), X(12)); 
        BODY_60_79(64, C, D, E, T, A, B, X(0), X(2), X(8), X(13)); 
        BODY_60_79(65, B, C, D, E, T, A, X(1), X(3), X(9), X(14)); 
        BODY_60_79(66, A, B, C, D, E, T, X(2), X(4), X(10), X(15)); 
        BODY_60_79(67, T, A, B, C, D, E, X(3), X(5), X(11), X(0)); 
        BODY_60_79(68, E, T, A, B, C, D, X(4), X(6), X(12), X(1)); 
        BODY_60_79(69, D, E, T, A, B, C, X(5), X(7), X(13), X(2)); 
        BODY_60_79(70, C, D, E, T, A, B, X(6), X(8), X(14), X(3)); 
        BODY_60_79(71, B, C, D, E, T, A, X(7), X(9), X(15), X(4)); 
        BODY_60_79(72, A, B, C, D, E, T, X(8), X(10), X(0), X(5)); 
        BODY_60_79(73, T, A, B, C, D, E, X(9), X(11), X(1), X(6)); 
        BODY_60_79(74, E, T, A, B, C, D, X(10), X(12), X(2), X(7)); 
        BODY_60_79(75, D, E, T, A, B, C, X(11), X(13), X(3), X(8)); 
        BODY_60_79(76, C, D, E, T, A, B, X(12), X(14), X(4), X(9)); 
        BODY_60_79(77, B, C, D, E, T, A, X(13), X(15), X(5), X(10)); 
        BODY_60_79(78, A, B, C, D, E, T, X(14), X(0), X(6), X(11)); 
        BODY_60_79(79, T, A, B, C, D, E, X(15), X(1), X(7), X(12)); 
 
        c->h0 = (c->h0 + E) & 0xffffffffL; 
        c->h1 = (c->h1 + T) & 0xffffffffL; 
        c->h2 = (c->h2 + A) & 0xffffffffL; 
        c->h3 = (c->h3 + B) & 0xffffffffL; 
        c->h4 = (c->h4 + C) & 0xffffffffL; 
 
        if (--num == 0) 
            break; 
 
        A = c->h0; 
        B = c->h1; 
        C = c->h2; 
        D = c->h3; 
        E = c->h4; 
 
    } 
} 
# endif 
 
#else                           /* OPENSSL_SMALL_FOOTPRINT */ 
 
# define BODY_00_15(xi)           do {   \ 
        T=E+K_00_19+F_00_19(B,C,D);     \ 
        E=D, D=C, C=ROTATE(B,30), B=A;  \ 
        A=ROTATE(A,5)+T+xi;         } while(0) 
 
# define BODY_16_19(xa,xb,xc,xd)  do {   \ 
        Xupdate(T,xa,xa,xb,xc,xd);      \ 
        T+=E+K_00_19+F_00_19(B,C,D);    \ 
        E=D, D=C, C=ROTATE(B,30), B=A;  \ 
        A=ROTATE(A,5)+T;            } while(0) 
 
# define BODY_20_39(xa,xb,xc,xd)  do {   \ 
        Xupdate(T,xa,xa,xb,xc,xd);      \ 
        T+=E+K_20_39+F_20_39(B,C,D);    \ 
        E=D, D=C, C=ROTATE(B,30), B=A;  \ 
        A=ROTATE(A,5)+T;            } while(0) 
 
# define BODY_40_59(xa,xb,xc,xd)  do {   \ 
        Xupdate(T,xa,xa,xb,xc,xd);      \ 
        T+=E+K_40_59+F_40_59(B,C,D);    \ 
        E=D, D=C, C=ROTATE(B,30), B=A;  \ 
        A=ROTATE(A,5)+T;            } while(0) 
 
# define BODY_60_79(xa,xb,xc,xd)  do {   \ 
        Xupdate(T,xa,xa,xb,xc,xd);      \ 
        T=E+K_60_79+F_60_79(B,C,D);     \ 
        E=D, D=C, C=ROTATE(B,30), B=A;  \ 
        A=ROTATE(A,5)+T+xa;         } while(0) 
 
# if !defined(SHA1_ASM) 
static void HASH_BLOCK_DATA_ORDER(SHA_CTX *c, const void *p, size_t num) 
{ 
    const unsigned char *data = p; 
    register unsigned MD32_REG_T A, B, C, D, E, T, l; 
    int i; 
    SHA_LONG X[16]; 
 
    A = c->h0; 
    B = c->h1; 
    C = c->h2; 
    D = c->h3; 
    E = c->h4; 
 
    for (;;) { 
        for (i = 0; i < 16; i++) { 
            (void)HOST_c2l(data, l); 
            X[i] = l; 
            BODY_00_15(X[i]); 
        } 
        for (i = 0; i < 4; i++) { 
            BODY_16_19(X[i], X[i + 2], X[i + 8], X[(i + 13) & 15]); 
        } 
        for (; i < 24; i++) { 
            BODY_20_39(X[i & 15], X[(i + 2) & 15], X[(i + 8) & 15], 
                       X[(i + 13) & 15]); 
        } 
        for (i = 0; i < 20; i++) { 
            BODY_40_59(X[(i + 8) & 15], X[(i + 10) & 15], X[i & 15], 
                       X[(i + 5) & 15]); 
        } 
        for (i = 4; i < 24; i++) { 
            BODY_60_79(X[(i + 8) & 15], X[(i + 10) & 15], X[i & 15], 
                       X[(i + 5) & 15]); 
        } 
 
        c->h0 = (c->h0 + A) & 0xffffffffL; 
        c->h1 = (c->h1 + B) & 0xffffffffL; 
        c->h2 = (c->h2 + C) & 0xffffffffL; 
        c->h3 = (c->h3 + D) & 0xffffffffL; 
        c->h4 = (c->h4 + E) & 0xffffffffL; 
 
        if (--num == 0) 
            break; 
 
        A = c->h0; 
        B = c->h1; 
        C = c->h2; 
        D = c->h3; 
        E = c->h4; 
 
    } 
} 
# endif 
 
#endif