sha2.c revision 162852
1162852Sdes/* $OpenBSD: sha2.c,v 1.11 2005/08/08 08:05:35 espie Exp $ */ 2162852Sdes 3162852Sdes/* 4162852Sdes * FILE: sha2.c 5162852Sdes * AUTHOR: Aaron D. Gifford <me@aarongifford.com> 6162852Sdes * 7162852Sdes * Copyright (c) 2000-2001, Aaron D. Gifford 8162852Sdes * All rights reserved. 9162852Sdes * 10162852Sdes * Redistribution and use in source and binary forms, with or without 11162852Sdes * modification, are permitted provided that the following conditions 12162852Sdes * are met: 13162852Sdes * 1. Redistributions of source code must retain the above copyright 14162852Sdes * notice, this list of conditions and the following disclaimer. 15162852Sdes * 2. Redistributions in binary form must reproduce the above copyright 16162852Sdes * notice, this list of conditions and the following disclaimer in the 17162852Sdes * documentation and/or other materials provided with the distribution. 18162852Sdes * 3. Neither the name of the copyright holder nor the names of contributors 19162852Sdes * may be used to endorse or promote products derived from this software 20162852Sdes * without specific prior written permission. 21162852Sdes * 22162852Sdes * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTOR(S) ``AS IS'' AND 23162852Sdes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24162852Sdes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25162852Sdes * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTOR(S) BE LIABLE 26162852Sdes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27162852Sdes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28162852Sdes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29162852Sdes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30162852Sdes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31162852Sdes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32162852Sdes * SUCH DAMAGE. 33162852Sdes * 34162852Sdes * $From: sha2.c,v 1.1 2001/11/08 00:01:51 adg Exp adg $ 35162852Sdes */ 36162852Sdes 37162852Sdes/* OPENBSD ORIGINAL: lib/libc/hash/sha2.c */ 38162852Sdes 39162852Sdes#include "includes.h" 40162852Sdes 41162852Sdes#include <openssl/opensslv.h> 42162852Sdes 43162852Sdes#if !defined(HAVE_EVP_SHA256) && !defined(HAVE_SHA256_UPDATE) && \ 44162852Sdes (OPENSSL_VERSION_NUMBER >= 0x00907000L) 45162852Sdes#include <sys/types.h> 46162852Sdes#include <string.h> 47162852Sdes#include "sha2.h" 48162852Sdes 49162852Sdes/* 50162852Sdes * UNROLLED TRANSFORM LOOP NOTE: 51162852Sdes * You can define SHA2_UNROLL_TRANSFORM to use the unrolled transform 52162852Sdes * loop version for the hash transform rounds (defined using macros 53162852Sdes * later in this file). Either define on the command line, for example: 54162852Sdes * 55162852Sdes * cc -DSHA2_UNROLL_TRANSFORM -o sha2 sha2.c sha2prog.c 56162852Sdes * 57162852Sdes * or define below: 58162852Sdes * 59162852Sdes * #define SHA2_UNROLL_TRANSFORM 60162852Sdes * 61162852Sdes */ 62162852Sdes 63162852Sdes/*** SHA-256/384/512 Machine Architecture Definitions *****************/ 64162852Sdes/* 65162852Sdes * BYTE_ORDER NOTE: 66162852Sdes * 67162852Sdes * Please make sure that your system defines BYTE_ORDER. If your 68162852Sdes * architecture is little-endian, make sure it also defines 69162852Sdes * LITTLE_ENDIAN and that the two (BYTE_ORDER and LITTLE_ENDIAN) are 70162852Sdes * equivilent. 71162852Sdes * 72162852Sdes * If your system does not define the above, then you can do so by 73162852Sdes * hand like this: 74162852Sdes * 75162852Sdes * #define LITTLE_ENDIAN 1234 76162852Sdes * #define BIG_ENDIAN 4321 77162852Sdes * 78162852Sdes * And for little-endian machines, add: 79162852Sdes * 80162852Sdes * #define BYTE_ORDER LITTLE_ENDIAN 81162852Sdes * 82162852Sdes * Or for big-endian machines: 83162852Sdes * 84162852Sdes * #define BYTE_ORDER BIG_ENDIAN 85162852Sdes * 86162852Sdes * The FreeBSD machine this was written on defines BYTE_ORDER 87162852Sdes * appropriately by including <sys/types.h> (which in turn includes 88162852Sdes * <machine/endian.h> where the appropriate definitions are actually 89162852Sdes * made). 90162852Sdes */ 91162852Sdes#if !defined(BYTE_ORDER) || (BYTE_ORDER != LITTLE_ENDIAN && BYTE_ORDER != BIG_ENDIAN) 92162852Sdes#error Define BYTE_ORDER to be equal to either LITTLE_ENDIAN or BIG_ENDIAN 93162852Sdes#endif 94162852Sdes 95162852Sdes 96162852Sdes/*** SHA-256/384/512 Various Length Definitions ***********************/ 97162852Sdes/* NOTE: Most of these are in sha2.h */ 98162852Sdes#define SHA256_SHORT_BLOCK_LENGTH (SHA256_BLOCK_LENGTH - 8) 99162852Sdes#define SHA384_SHORT_BLOCK_LENGTH (SHA384_BLOCK_LENGTH - 16) 100162852Sdes#define SHA512_SHORT_BLOCK_LENGTH (SHA512_BLOCK_LENGTH - 16) 101162852Sdes 102162852Sdes/*** ENDIAN SPECIFIC COPY MACROS **************************************/ 103162852Sdes#define BE_8_TO_32(dst, cp) do { \ 104162852Sdes (dst) = (u_int32_t)(cp)[3] | ((u_int32_t)(cp)[2] << 8) | \ 105162852Sdes ((u_int32_t)(cp)[1] << 16) | ((u_int32_t)(cp)[0] << 24); \ 106162852Sdes} while(0) 107162852Sdes 108162852Sdes#define BE_8_TO_64(dst, cp) do { \ 109162852Sdes (dst) = (u_int64_t)(cp)[7] | ((u_int64_t)(cp)[6] << 8) | \ 110162852Sdes ((u_int64_t)(cp)[5] << 16) | ((u_int64_t)(cp)[4] << 24) | \ 111162852Sdes ((u_int64_t)(cp)[3] << 32) | ((u_int64_t)(cp)[2] << 40) | \ 112162852Sdes ((u_int64_t)(cp)[1] << 48) | ((u_int64_t)(cp)[0] << 56); \ 113162852Sdes} while (0) 114162852Sdes 115162852Sdes#define BE_64_TO_8(cp, src) do { \ 116162852Sdes (cp)[0] = (src) >> 56; \ 117162852Sdes (cp)[1] = (src) >> 48; \ 118162852Sdes (cp)[2] = (src) >> 40; \ 119162852Sdes (cp)[3] = (src) >> 32; \ 120162852Sdes (cp)[4] = (src) >> 24; \ 121162852Sdes (cp)[5] = (src) >> 16; \ 122162852Sdes (cp)[6] = (src) >> 8; \ 123162852Sdes (cp)[7] = (src); \ 124162852Sdes} while (0) 125162852Sdes 126162852Sdes#define BE_32_TO_8(cp, src) do { \ 127162852Sdes (cp)[0] = (src) >> 24; \ 128162852Sdes (cp)[1] = (src) >> 16; \ 129162852Sdes (cp)[2] = (src) >> 8; \ 130162852Sdes (cp)[3] = (src); \ 131162852Sdes} while (0) 132162852Sdes 133162852Sdes/* 134162852Sdes * Macro for incrementally adding the unsigned 64-bit integer n to the 135162852Sdes * unsigned 128-bit integer (represented using a two-element array of 136162852Sdes * 64-bit words): 137162852Sdes */ 138162852Sdes#define ADDINC128(w,n) do { \ 139162852Sdes (w)[0] += (u_int64_t)(n); \ 140162852Sdes if ((w)[0] < (n)) { \ 141162852Sdes (w)[1]++; \ 142162852Sdes } \ 143162852Sdes} while (0) 144162852Sdes 145162852Sdes/*** THE SIX LOGICAL FUNCTIONS ****************************************/ 146162852Sdes/* 147162852Sdes * Bit shifting and rotation (used by the six SHA-XYZ logical functions: 148162852Sdes * 149162852Sdes * NOTE: The naming of R and S appears backwards here (R is a SHIFT and 150162852Sdes * S is a ROTATION) because the SHA-256/384/512 description document 151162852Sdes * (see http://csrc.nist.gov/cryptval/shs/sha256-384-512.pdf) uses this 152162852Sdes * same "backwards" definition. 153162852Sdes */ 154162852Sdes/* Shift-right (used in SHA-256, SHA-384, and SHA-512): */ 155162852Sdes#define R(b,x) ((x) >> (b)) 156162852Sdes/* 32-bit Rotate-right (used in SHA-256): */ 157162852Sdes#define S32(b,x) (((x) >> (b)) | ((x) << (32 - (b)))) 158162852Sdes/* 64-bit Rotate-right (used in SHA-384 and SHA-512): */ 159162852Sdes#define S64(b,x) (((x) >> (b)) | ((x) << (64 - (b)))) 160162852Sdes 161162852Sdes/* Two of six logical functions used in SHA-256, SHA-384, and SHA-512: */ 162162852Sdes#define Ch(x,y,z) (((x) & (y)) ^ ((~(x)) & (z))) 163162852Sdes#define Maj(x,y,z) (((x) & (y)) ^ ((x) & (z)) ^ ((y) & (z))) 164162852Sdes 165162852Sdes/* Four of six logical functions used in SHA-256: */ 166162852Sdes#define Sigma0_256(x) (S32(2, (x)) ^ S32(13, (x)) ^ S32(22, (x))) 167162852Sdes#define Sigma1_256(x) (S32(6, (x)) ^ S32(11, (x)) ^ S32(25, (x))) 168162852Sdes#define sigma0_256(x) (S32(7, (x)) ^ S32(18, (x)) ^ R(3 , (x))) 169162852Sdes#define sigma1_256(x) (S32(17, (x)) ^ S32(19, (x)) ^ R(10, (x))) 170162852Sdes 171162852Sdes/* Four of six logical functions used in SHA-384 and SHA-512: */ 172162852Sdes#define Sigma0_512(x) (S64(28, (x)) ^ S64(34, (x)) ^ S64(39, (x))) 173162852Sdes#define Sigma1_512(x) (S64(14, (x)) ^ S64(18, (x)) ^ S64(41, (x))) 174162852Sdes#define sigma0_512(x) (S64( 1, (x)) ^ S64( 8, (x)) ^ R( 7, (x))) 175162852Sdes#define sigma1_512(x) (S64(19, (x)) ^ S64(61, (x)) ^ R( 6, (x))) 176162852Sdes 177162852Sdes 178162852Sdes/*** SHA-XYZ INITIAL HASH VALUES AND CONSTANTS ************************/ 179162852Sdes/* Hash constant words K for SHA-256: */ 180162852Sdesconst static u_int32_t K256[64] = { 181162852Sdes 0x428a2f98UL, 0x71374491UL, 0xb5c0fbcfUL, 0xe9b5dba5UL, 182162852Sdes 0x3956c25bUL, 0x59f111f1UL, 0x923f82a4UL, 0xab1c5ed5UL, 183162852Sdes 0xd807aa98UL, 0x12835b01UL, 0x243185beUL, 0x550c7dc3UL, 184162852Sdes 0x72be5d74UL, 0x80deb1feUL, 0x9bdc06a7UL, 0xc19bf174UL, 185162852Sdes 0xe49b69c1UL, 0xefbe4786UL, 0x0fc19dc6UL, 0x240ca1ccUL, 186162852Sdes 0x2de92c6fUL, 0x4a7484aaUL, 0x5cb0a9dcUL, 0x76f988daUL, 187162852Sdes 0x983e5152UL, 0xa831c66dUL, 0xb00327c8UL, 0xbf597fc7UL, 188162852Sdes 0xc6e00bf3UL, 0xd5a79147UL, 0x06ca6351UL, 0x14292967UL, 189162852Sdes 0x27b70a85UL, 0x2e1b2138UL, 0x4d2c6dfcUL, 0x53380d13UL, 190162852Sdes 0x650a7354UL, 0x766a0abbUL, 0x81c2c92eUL, 0x92722c85UL, 191162852Sdes 0xa2bfe8a1UL, 0xa81a664bUL, 0xc24b8b70UL, 0xc76c51a3UL, 192162852Sdes 0xd192e819UL, 0xd6990624UL, 0xf40e3585UL, 0x106aa070UL, 193162852Sdes 0x19a4c116UL, 0x1e376c08UL, 0x2748774cUL, 0x34b0bcb5UL, 194162852Sdes 0x391c0cb3UL, 0x4ed8aa4aUL, 0x5b9cca4fUL, 0x682e6ff3UL, 195162852Sdes 0x748f82eeUL, 0x78a5636fUL, 0x84c87814UL, 0x8cc70208UL, 196162852Sdes 0x90befffaUL, 0xa4506cebUL, 0xbef9a3f7UL, 0xc67178f2UL 197162852Sdes}; 198162852Sdes 199162852Sdes/* Initial hash value H for SHA-256: */ 200162852Sdesconst static u_int32_t sha256_initial_hash_value[8] = { 201162852Sdes 0x6a09e667UL, 202162852Sdes 0xbb67ae85UL, 203162852Sdes 0x3c6ef372UL, 204162852Sdes 0xa54ff53aUL, 205162852Sdes 0x510e527fUL, 206162852Sdes 0x9b05688cUL, 207162852Sdes 0x1f83d9abUL, 208162852Sdes 0x5be0cd19UL 209162852Sdes}; 210162852Sdes 211162852Sdes/* Hash constant words K for SHA-384 and SHA-512: */ 212162852Sdesconst static u_int64_t K512[80] = { 213162852Sdes 0x428a2f98d728ae22ULL, 0x7137449123ef65cdULL, 214162852Sdes 0xb5c0fbcfec4d3b2fULL, 0xe9b5dba58189dbbcULL, 215162852Sdes 0x3956c25bf348b538ULL, 0x59f111f1b605d019ULL, 216162852Sdes 0x923f82a4af194f9bULL, 0xab1c5ed5da6d8118ULL, 217162852Sdes 0xd807aa98a3030242ULL, 0x12835b0145706fbeULL, 218162852Sdes 0x243185be4ee4b28cULL, 0x550c7dc3d5ffb4e2ULL, 219162852Sdes 0x72be5d74f27b896fULL, 0x80deb1fe3b1696b1ULL, 220162852Sdes 0x9bdc06a725c71235ULL, 0xc19bf174cf692694ULL, 221162852Sdes 0xe49b69c19ef14ad2ULL, 0xefbe4786384f25e3ULL, 222162852Sdes 0x0fc19dc68b8cd5b5ULL, 0x240ca1cc77ac9c65ULL, 223162852Sdes 0x2de92c6f592b0275ULL, 0x4a7484aa6ea6e483ULL, 224162852Sdes 0x5cb0a9dcbd41fbd4ULL, 0x76f988da831153b5ULL, 225162852Sdes 0x983e5152ee66dfabULL, 0xa831c66d2db43210ULL, 226162852Sdes 0xb00327c898fb213fULL, 0xbf597fc7beef0ee4ULL, 227162852Sdes 0xc6e00bf33da88fc2ULL, 0xd5a79147930aa725ULL, 228162852Sdes 0x06ca6351e003826fULL, 0x142929670a0e6e70ULL, 229162852Sdes 0x27b70a8546d22ffcULL, 0x2e1b21385c26c926ULL, 230162852Sdes 0x4d2c6dfc5ac42aedULL, 0x53380d139d95b3dfULL, 231162852Sdes 0x650a73548baf63deULL, 0x766a0abb3c77b2a8ULL, 232162852Sdes 0x81c2c92e47edaee6ULL, 0x92722c851482353bULL, 233162852Sdes 0xa2bfe8a14cf10364ULL, 0xa81a664bbc423001ULL, 234162852Sdes 0xc24b8b70d0f89791ULL, 0xc76c51a30654be30ULL, 235162852Sdes 0xd192e819d6ef5218ULL, 0xd69906245565a910ULL, 236162852Sdes 0xf40e35855771202aULL, 0x106aa07032bbd1b8ULL, 237162852Sdes 0x19a4c116b8d2d0c8ULL, 0x1e376c085141ab53ULL, 238162852Sdes 0x2748774cdf8eeb99ULL, 0x34b0bcb5e19b48a8ULL, 239162852Sdes 0x391c0cb3c5c95a63ULL, 0x4ed8aa4ae3418acbULL, 240162852Sdes 0x5b9cca4f7763e373ULL, 0x682e6ff3d6b2b8a3ULL, 241162852Sdes 0x748f82ee5defb2fcULL, 0x78a5636f43172f60ULL, 242162852Sdes 0x84c87814a1f0ab72ULL, 0x8cc702081a6439ecULL, 243162852Sdes 0x90befffa23631e28ULL, 0xa4506cebde82bde9ULL, 244162852Sdes 0xbef9a3f7b2c67915ULL, 0xc67178f2e372532bULL, 245162852Sdes 0xca273eceea26619cULL, 0xd186b8c721c0c207ULL, 246162852Sdes 0xeada7dd6cde0eb1eULL, 0xf57d4f7fee6ed178ULL, 247162852Sdes 0x06f067aa72176fbaULL, 0x0a637dc5a2c898a6ULL, 248162852Sdes 0x113f9804bef90daeULL, 0x1b710b35131c471bULL, 249162852Sdes 0x28db77f523047d84ULL, 0x32caab7b40c72493ULL, 250162852Sdes 0x3c9ebe0a15c9bebcULL, 0x431d67c49c100d4cULL, 251162852Sdes 0x4cc5d4becb3e42b6ULL, 0x597f299cfc657e2aULL, 252162852Sdes 0x5fcb6fab3ad6faecULL, 0x6c44198c4a475817ULL 253162852Sdes}; 254162852Sdes 255162852Sdes/* Initial hash value H for SHA-384 */ 256162852Sdesconst static u_int64_t sha384_initial_hash_value[8] = { 257162852Sdes 0xcbbb9d5dc1059ed8ULL, 258162852Sdes 0x629a292a367cd507ULL, 259162852Sdes 0x9159015a3070dd17ULL, 260162852Sdes 0x152fecd8f70e5939ULL, 261162852Sdes 0x67332667ffc00b31ULL, 262162852Sdes 0x8eb44a8768581511ULL, 263162852Sdes 0xdb0c2e0d64f98fa7ULL, 264162852Sdes 0x47b5481dbefa4fa4ULL 265162852Sdes}; 266162852Sdes 267162852Sdes/* Initial hash value H for SHA-512 */ 268162852Sdesconst static u_int64_t sha512_initial_hash_value[8] = { 269162852Sdes 0x6a09e667f3bcc908ULL, 270162852Sdes 0xbb67ae8584caa73bULL, 271162852Sdes 0x3c6ef372fe94f82bULL, 272162852Sdes 0xa54ff53a5f1d36f1ULL, 273162852Sdes 0x510e527fade682d1ULL, 274162852Sdes 0x9b05688c2b3e6c1fULL, 275162852Sdes 0x1f83d9abfb41bd6bULL, 276162852Sdes 0x5be0cd19137e2179ULL 277162852Sdes}; 278162852Sdes 279162852Sdes 280162852Sdes/*** SHA-256: *********************************************************/ 281162852Sdesvoid 282162852SdesSHA256_Init(SHA256_CTX *context) 283162852Sdes{ 284162852Sdes if (context == NULL) 285162852Sdes return; 286162852Sdes memcpy(context->state, sha256_initial_hash_value, 287162852Sdes sizeof(sha256_initial_hash_value)); 288162852Sdes memset(context->buffer, 0, sizeof(context->buffer)); 289162852Sdes context->bitcount = 0; 290162852Sdes} 291162852Sdes 292162852Sdes#ifdef SHA2_UNROLL_TRANSFORM 293162852Sdes 294162852Sdes/* Unrolled SHA-256 round macros: */ 295162852Sdes 296162852Sdes#define ROUND256_0_TO_15(a,b,c,d,e,f,g,h) do { \ 297162852Sdes BE_8_TO_32(W256[j], data); \ 298162852Sdes data += 4; \ 299162852Sdes T1 = (h) + Sigma1_256((e)) + Ch((e), (f), (g)) + K256[j] + W256[j]; \ 300162852Sdes (d) += T1; \ 301162852Sdes (h) = T1 + Sigma0_256((a)) + Maj((a), (b), (c)); \ 302162852Sdes j++; \ 303162852Sdes} while(0) 304162852Sdes 305162852Sdes#define ROUND256(a,b,c,d,e,f,g,h) do { \ 306162852Sdes s0 = W256[(j+1)&0x0f]; \ 307162852Sdes s0 = sigma0_256(s0); \ 308162852Sdes s1 = W256[(j+14)&0x0f]; \ 309162852Sdes s1 = sigma1_256(s1); \ 310162852Sdes T1 = (h) + Sigma1_256((e)) + Ch((e), (f), (g)) + K256[j] + \ 311162852Sdes (W256[j&0x0f] += s1 + W256[(j+9)&0x0f] + s0); \ 312162852Sdes (d) += T1; \ 313162852Sdes (h) = T1 + Sigma0_256((a)) + Maj((a), (b), (c)); \ 314162852Sdes j++; \ 315162852Sdes} while(0) 316162852Sdes 317162852Sdesvoid 318162852SdesSHA256_Transform(u_int32_t state[8], const u_int8_t data[SHA256_BLOCK_LENGTH]) 319162852Sdes{ 320162852Sdes u_int32_t a, b, c, d, e, f, g, h, s0, s1; 321162852Sdes u_int32_t T1, W256[16]; 322162852Sdes int j; 323162852Sdes 324162852Sdes /* Initialize registers with the prev. intermediate value */ 325162852Sdes a = state[0]; 326162852Sdes b = state[1]; 327162852Sdes c = state[2]; 328162852Sdes d = state[3]; 329162852Sdes e = state[4]; 330162852Sdes f = state[5]; 331162852Sdes g = state[6]; 332162852Sdes h = state[7]; 333162852Sdes 334162852Sdes j = 0; 335162852Sdes do { 336162852Sdes /* Rounds 0 to 15 (unrolled): */ 337162852Sdes ROUND256_0_TO_15(a,b,c,d,e,f,g,h); 338162852Sdes ROUND256_0_TO_15(h,a,b,c,d,e,f,g); 339162852Sdes ROUND256_0_TO_15(g,h,a,b,c,d,e,f); 340162852Sdes ROUND256_0_TO_15(f,g,h,a,b,c,d,e); 341162852Sdes ROUND256_0_TO_15(e,f,g,h,a,b,c,d); 342162852Sdes ROUND256_0_TO_15(d,e,f,g,h,a,b,c); 343162852Sdes ROUND256_0_TO_15(c,d,e,f,g,h,a,b); 344162852Sdes ROUND256_0_TO_15(b,c,d,e,f,g,h,a); 345162852Sdes } while (j < 16); 346162852Sdes 347162852Sdes /* Now for the remaining rounds up to 63: */ 348162852Sdes do { 349162852Sdes ROUND256(a,b,c,d,e,f,g,h); 350162852Sdes ROUND256(h,a,b,c,d,e,f,g); 351162852Sdes ROUND256(g,h,a,b,c,d,e,f); 352162852Sdes ROUND256(f,g,h,a,b,c,d,e); 353162852Sdes ROUND256(e,f,g,h,a,b,c,d); 354162852Sdes ROUND256(d,e,f,g,h,a,b,c); 355162852Sdes ROUND256(c,d,e,f,g,h,a,b); 356162852Sdes ROUND256(b,c,d,e,f,g,h,a); 357162852Sdes } while (j < 64); 358162852Sdes 359162852Sdes /* Compute the current intermediate hash value */ 360162852Sdes state[0] += a; 361162852Sdes state[1] += b; 362162852Sdes state[2] += c; 363162852Sdes state[3] += d; 364162852Sdes state[4] += e; 365162852Sdes state[5] += f; 366162852Sdes state[6] += g; 367162852Sdes state[7] += h; 368162852Sdes 369162852Sdes /* Clean up */ 370162852Sdes a = b = c = d = e = f = g = h = T1 = 0; 371162852Sdes} 372162852Sdes 373162852Sdes#else /* SHA2_UNROLL_TRANSFORM */ 374162852Sdes 375162852Sdesvoid 376162852SdesSHA256_Transform(u_int32_t state[8], const u_int8_t data[SHA256_BLOCK_LENGTH]) 377162852Sdes{ 378162852Sdes u_int32_t a, b, c, d, e, f, g, h, s0, s1; 379162852Sdes u_int32_t T1, T2, W256[16]; 380162852Sdes int j; 381162852Sdes 382162852Sdes /* Initialize registers with the prev. intermediate value */ 383162852Sdes a = state[0]; 384162852Sdes b = state[1]; 385162852Sdes c = state[2]; 386162852Sdes d = state[3]; 387162852Sdes e = state[4]; 388162852Sdes f = state[5]; 389162852Sdes g = state[6]; 390162852Sdes h = state[7]; 391162852Sdes 392162852Sdes j = 0; 393162852Sdes do { 394162852Sdes BE_8_TO_32(W256[j], data); 395162852Sdes data += 4; 396162852Sdes /* Apply the SHA-256 compression function to update a..h */ 397162852Sdes T1 = h + Sigma1_256(e) + Ch(e, f, g) + K256[j] + W256[j]; 398162852Sdes T2 = Sigma0_256(a) + Maj(a, b, c); 399162852Sdes h = g; 400162852Sdes g = f; 401162852Sdes f = e; 402162852Sdes e = d + T1; 403162852Sdes d = c; 404162852Sdes c = b; 405162852Sdes b = a; 406162852Sdes a = T1 + T2; 407162852Sdes 408162852Sdes j++; 409162852Sdes } while (j < 16); 410162852Sdes 411162852Sdes do { 412162852Sdes /* Part of the message block expansion: */ 413162852Sdes s0 = W256[(j+1)&0x0f]; 414162852Sdes s0 = sigma0_256(s0); 415162852Sdes s1 = W256[(j+14)&0x0f]; 416162852Sdes s1 = sigma1_256(s1); 417162852Sdes 418162852Sdes /* Apply the SHA-256 compression function to update a..h */ 419162852Sdes T1 = h + Sigma1_256(e) + Ch(e, f, g) + K256[j] + 420162852Sdes (W256[j&0x0f] += s1 + W256[(j+9)&0x0f] + s0); 421162852Sdes T2 = Sigma0_256(a) + Maj(a, b, c); 422162852Sdes h = g; 423162852Sdes g = f; 424162852Sdes f = e; 425162852Sdes e = d + T1; 426162852Sdes d = c; 427162852Sdes c = b; 428162852Sdes b = a; 429162852Sdes a = T1 + T2; 430162852Sdes 431162852Sdes j++; 432162852Sdes } while (j < 64); 433162852Sdes 434162852Sdes /* Compute the current intermediate hash value */ 435162852Sdes state[0] += a; 436162852Sdes state[1] += b; 437162852Sdes state[2] += c; 438162852Sdes state[3] += d; 439162852Sdes state[4] += e; 440162852Sdes state[5] += f; 441162852Sdes state[6] += g; 442162852Sdes state[7] += h; 443162852Sdes 444162852Sdes /* Clean up */ 445162852Sdes a = b = c = d = e = f = g = h = T1 = T2 = 0; 446162852Sdes} 447162852Sdes 448162852Sdes#endif /* SHA2_UNROLL_TRANSFORM */ 449162852Sdes 450162852Sdesvoid 451162852SdesSHA256_Update(SHA256_CTX *context, const u_int8_t *data, size_t len) 452162852Sdes{ 453162852Sdes size_t freespace, usedspace; 454162852Sdes 455162852Sdes /* Calling with no data is valid (we do nothing) */ 456162852Sdes if (len == 0) 457162852Sdes return; 458162852Sdes 459162852Sdes usedspace = (context->bitcount >> 3) % SHA256_BLOCK_LENGTH; 460162852Sdes if (usedspace > 0) { 461162852Sdes /* Calculate how much free space is available in the buffer */ 462162852Sdes freespace = SHA256_BLOCK_LENGTH - usedspace; 463162852Sdes 464162852Sdes if (len >= freespace) { 465162852Sdes /* Fill the buffer completely and process it */ 466162852Sdes memcpy(&context->buffer[usedspace], data, freespace); 467162852Sdes context->bitcount += freespace << 3; 468162852Sdes len -= freespace; 469162852Sdes data += freespace; 470162852Sdes SHA256_Transform(context->state, context->buffer); 471162852Sdes } else { 472162852Sdes /* The buffer is not yet full */ 473162852Sdes memcpy(&context->buffer[usedspace], data, len); 474162852Sdes context->bitcount += len << 3; 475162852Sdes /* Clean up: */ 476162852Sdes usedspace = freespace = 0; 477162852Sdes return; 478162852Sdes } 479162852Sdes } 480162852Sdes while (len >= SHA256_BLOCK_LENGTH) { 481162852Sdes /* Process as many complete blocks as we can */ 482162852Sdes SHA256_Transform(context->state, data); 483162852Sdes context->bitcount += SHA256_BLOCK_LENGTH << 3; 484162852Sdes len -= SHA256_BLOCK_LENGTH; 485162852Sdes data += SHA256_BLOCK_LENGTH; 486162852Sdes } 487162852Sdes if (len > 0) { 488162852Sdes /* There's left-overs, so save 'em */ 489162852Sdes memcpy(context->buffer, data, len); 490162852Sdes context->bitcount += len << 3; 491162852Sdes } 492162852Sdes /* Clean up: */ 493162852Sdes usedspace = freespace = 0; 494162852Sdes} 495162852Sdes 496162852Sdesvoid 497162852SdesSHA256_Pad(SHA256_CTX *context) 498162852Sdes{ 499162852Sdes unsigned int usedspace; 500162852Sdes 501162852Sdes usedspace = (context->bitcount >> 3) % SHA256_BLOCK_LENGTH; 502162852Sdes if (usedspace > 0) { 503162852Sdes /* Begin padding with a 1 bit: */ 504162852Sdes context->buffer[usedspace++] = 0x80; 505162852Sdes 506162852Sdes if (usedspace <= SHA256_SHORT_BLOCK_LENGTH) { 507162852Sdes /* Set-up for the last transform: */ 508162852Sdes memset(&context->buffer[usedspace], 0, 509162852Sdes SHA256_SHORT_BLOCK_LENGTH - usedspace); 510162852Sdes } else { 511162852Sdes if (usedspace < SHA256_BLOCK_LENGTH) { 512162852Sdes memset(&context->buffer[usedspace], 0, 513162852Sdes SHA256_BLOCK_LENGTH - usedspace); 514162852Sdes } 515162852Sdes /* Do second-to-last transform: */ 516162852Sdes SHA256_Transform(context->state, context->buffer); 517162852Sdes 518162852Sdes /* Prepare for last transform: */ 519162852Sdes memset(context->buffer, 0, SHA256_SHORT_BLOCK_LENGTH); 520162852Sdes } 521162852Sdes } else { 522162852Sdes /* Set-up for the last transform: */ 523162852Sdes memset(context->buffer, 0, SHA256_SHORT_BLOCK_LENGTH); 524162852Sdes 525162852Sdes /* Begin padding with a 1 bit: */ 526162852Sdes *context->buffer = 0x80; 527162852Sdes } 528162852Sdes /* Store the length of input data (in bits) in big endian format: */ 529162852Sdes BE_64_TO_8(&context->buffer[SHA256_SHORT_BLOCK_LENGTH], 530162852Sdes context->bitcount); 531162852Sdes 532162852Sdes /* Final transform: */ 533162852Sdes SHA256_Transform(context->state, context->buffer); 534162852Sdes 535162852Sdes /* Clean up: */ 536162852Sdes usedspace = 0; 537162852Sdes} 538162852Sdes 539162852Sdesvoid 540162852SdesSHA256_Final(u_int8_t digest[SHA256_DIGEST_LENGTH], SHA256_CTX *context) 541162852Sdes{ 542162852Sdes SHA256_Pad(context); 543162852Sdes 544162852Sdes /* If no digest buffer is passed, we don't bother doing this: */ 545162852Sdes if (digest != NULL) { 546162852Sdes#if BYTE_ORDER == LITTLE_ENDIAN 547162852Sdes int i; 548162852Sdes 549162852Sdes /* Convert TO host byte order */ 550162852Sdes for (i = 0; i < 8; i++) 551162852Sdes BE_32_TO_8(digest + i * 4, context->state[i]); 552162852Sdes#else 553162852Sdes memcpy(digest, context->state, SHA256_DIGEST_LENGTH); 554162852Sdes#endif 555162852Sdes memset(context, 0, sizeof(*context)); 556162852Sdes } 557162852Sdes} 558162852Sdes 559162852Sdes 560162852Sdes/*** SHA-512: *********************************************************/ 561162852Sdesvoid 562162852SdesSHA512_Init(SHA512_CTX *context) 563162852Sdes{ 564162852Sdes if (context == NULL) 565162852Sdes return; 566162852Sdes memcpy(context->state, sha512_initial_hash_value, 567162852Sdes sizeof(sha512_initial_hash_value)); 568162852Sdes memset(context->buffer, 0, sizeof(context->buffer)); 569162852Sdes context->bitcount[0] = context->bitcount[1] = 0; 570162852Sdes} 571162852Sdes 572162852Sdes#ifdef SHA2_UNROLL_TRANSFORM 573162852Sdes 574162852Sdes/* Unrolled SHA-512 round macros: */ 575162852Sdes 576162852Sdes#define ROUND512_0_TO_15(a,b,c,d,e,f,g,h) do { \ 577162852Sdes BE_8_TO_64(W512[j], data); \ 578162852Sdes data += 8; \ 579162852Sdes T1 = (h) + Sigma1_512((e)) + Ch((e), (f), (g)) + K512[j] + W512[j]; \ 580162852Sdes (d) += T1; \ 581162852Sdes (h) = T1 + Sigma0_512((a)) + Maj((a), (b), (c)); \ 582162852Sdes j++; \ 583162852Sdes} while(0) 584162852Sdes 585162852Sdes 586162852Sdes#define ROUND512(a,b,c,d,e,f,g,h) do { \ 587162852Sdes s0 = W512[(j+1)&0x0f]; \ 588162852Sdes s0 = sigma0_512(s0); \ 589162852Sdes s1 = W512[(j+14)&0x0f]; \ 590162852Sdes s1 = sigma1_512(s1); \ 591162852Sdes T1 = (h) + Sigma1_512((e)) + Ch((e), (f), (g)) + K512[j] + \ 592162852Sdes (W512[j&0x0f] += s1 + W512[(j+9)&0x0f] + s0); \ 593162852Sdes (d) += T1; \ 594162852Sdes (h) = T1 + Sigma0_512((a)) + Maj((a), (b), (c)); \ 595162852Sdes j++; \ 596162852Sdes} while(0) 597162852Sdes 598162852Sdesvoid 599162852SdesSHA512_Transform(u_int64_t state[8], const u_int8_t data[SHA512_BLOCK_LENGTH]) 600162852Sdes{ 601162852Sdes u_int64_t a, b, c, d, e, f, g, h, s0, s1; 602162852Sdes u_int64_t T1, W512[16]; 603162852Sdes int j; 604162852Sdes 605162852Sdes /* Initialize registers with the prev. intermediate value */ 606162852Sdes a = state[0]; 607162852Sdes b = state[1]; 608162852Sdes c = state[2]; 609162852Sdes d = state[3]; 610162852Sdes e = state[4]; 611162852Sdes f = state[5]; 612162852Sdes g = state[6]; 613162852Sdes h = state[7]; 614162852Sdes 615162852Sdes j = 0; 616162852Sdes do { 617162852Sdes /* Rounds 0 to 15 (unrolled): */ 618162852Sdes ROUND512_0_TO_15(a,b,c,d,e,f,g,h); 619162852Sdes ROUND512_0_TO_15(h,a,b,c,d,e,f,g); 620162852Sdes ROUND512_0_TO_15(g,h,a,b,c,d,e,f); 621162852Sdes ROUND512_0_TO_15(f,g,h,a,b,c,d,e); 622162852Sdes ROUND512_0_TO_15(e,f,g,h,a,b,c,d); 623162852Sdes ROUND512_0_TO_15(d,e,f,g,h,a,b,c); 624162852Sdes ROUND512_0_TO_15(c,d,e,f,g,h,a,b); 625162852Sdes ROUND512_0_TO_15(b,c,d,e,f,g,h,a); 626162852Sdes } while (j < 16); 627162852Sdes 628162852Sdes /* Now for the remaining rounds up to 79: */ 629162852Sdes do { 630162852Sdes ROUND512(a,b,c,d,e,f,g,h); 631162852Sdes ROUND512(h,a,b,c,d,e,f,g); 632162852Sdes ROUND512(g,h,a,b,c,d,e,f); 633162852Sdes ROUND512(f,g,h,a,b,c,d,e); 634162852Sdes ROUND512(e,f,g,h,a,b,c,d); 635162852Sdes ROUND512(d,e,f,g,h,a,b,c); 636162852Sdes ROUND512(c,d,e,f,g,h,a,b); 637162852Sdes ROUND512(b,c,d,e,f,g,h,a); 638162852Sdes } while (j < 80); 639162852Sdes 640162852Sdes /* Compute the current intermediate hash value */ 641162852Sdes state[0] += a; 642162852Sdes state[1] += b; 643162852Sdes state[2] += c; 644162852Sdes state[3] += d; 645162852Sdes state[4] += e; 646162852Sdes state[5] += f; 647162852Sdes state[6] += g; 648162852Sdes state[7] += h; 649162852Sdes 650162852Sdes /* Clean up */ 651162852Sdes a = b = c = d = e = f = g = h = T1 = 0; 652162852Sdes} 653162852Sdes 654162852Sdes#else /* SHA2_UNROLL_TRANSFORM */ 655162852Sdes 656162852Sdesvoid 657162852SdesSHA512_Transform(u_int64_t state[8], const u_int8_t data[SHA512_BLOCK_LENGTH]) 658162852Sdes{ 659162852Sdes u_int64_t a, b, c, d, e, f, g, h, s0, s1; 660162852Sdes u_int64_t T1, T2, W512[16]; 661162852Sdes int j; 662162852Sdes 663162852Sdes /* Initialize registers with the prev. intermediate value */ 664162852Sdes a = state[0]; 665162852Sdes b = state[1]; 666162852Sdes c = state[2]; 667162852Sdes d = state[3]; 668162852Sdes e = state[4]; 669162852Sdes f = state[5]; 670162852Sdes g = state[6]; 671162852Sdes h = state[7]; 672162852Sdes 673162852Sdes j = 0; 674162852Sdes do { 675162852Sdes BE_8_TO_64(W512[j], data); 676162852Sdes data += 8; 677162852Sdes /* Apply the SHA-512 compression function to update a..h */ 678162852Sdes T1 = h + Sigma1_512(e) + Ch(e, f, g) + K512[j] + W512[j]; 679162852Sdes T2 = Sigma0_512(a) + Maj(a, b, c); 680162852Sdes h = g; 681162852Sdes g = f; 682162852Sdes f = e; 683162852Sdes e = d + T1; 684162852Sdes d = c; 685162852Sdes c = b; 686162852Sdes b = a; 687162852Sdes a = T1 + T2; 688162852Sdes 689162852Sdes j++; 690162852Sdes } while (j < 16); 691162852Sdes 692162852Sdes do { 693162852Sdes /* Part of the message block expansion: */ 694162852Sdes s0 = W512[(j+1)&0x0f]; 695162852Sdes s0 = sigma0_512(s0); 696162852Sdes s1 = W512[(j+14)&0x0f]; 697162852Sdes s1 = sigma1_512(s1); 698162852Sdes 699162852Sdes /* Apply the SHA-512 compression function to update a..h */ 700162852Sdes T1 = h + Sigma1_512(e) + Ch(e, f, g) + K512[j] + 701162852Sdes (W512[j&0x0f] += s1 + W512[(j+9)&0x0f] + s0); 702162852Sdes T2 = Sigma0_512(a) + Maj(a, b, c); 703162852Sdes h = g; 704162852Sdes g = f; 705162852Sdes f = e; 706162852Sdes e = d + T1; 707162852Sdes d = c; 708162852Sdes c = b; 709162852Sdes b = a; 710162852Sdes a = T1 + T2; 711162852Sdes 712162852Sdes j++; 713162852Sdes } while (j < 80); 714162852Sdes 715162852Sdes /* Compute the current intermediate hash value */ 716162852Sdes state[0] += a; 717162852Sdes state[1] += b; 718162852Sdes state[2] += c; 719162852Sdes state[3] += d; 720162852Sdes state[4] += e; 721162852Sdes state[5] += f; 722162852Sdes state[6] += g; 723162852Sdes state[7] += h; 724162852Sdes 725162852Sdes /* Clean up */ 726162852Sdes a = b = c = d = e = f = g = h = T1 = T2 = 0; 727162852Sdes} 728162852Sdes 729162852Sdes#endif /* SHA2_UNROLL_TRANSFORM */ 730162852Sdes 731162852Sdesvoid 732162852SdesSHA512_Update(SHA512_CTX *context, const u_int8_t *data, size_t len) 733162852Sdes{ 734162852Sdes size_t freespace, usedspace; 735162852Sdes 736162852Sdes /* Calling with no data is valid (we do nothing) */ 737162852Sdes if (len == 0) 738162852Sdes return; 739162852Sdes 740162852Sdes usedspace = (context->bitcount[0] >> 3) % SHA512_BLOCK_LENGTH; 741162852Sdes if (usedspace > 0) { 742162852Sdes /* Calculate how much free space is available in the buffer */ 743162852Sdes freespace = SHA512_BLOCK_LENGTH - usedspace; 744162852Sdes 745162852Sdes if (len >= freespace) { 746162852Sdes /* Fill the buffer completely and process it */ 747162852Sdes memcpy(&context->buffer[usedspace], data, freespace); 748162852Sdes ADDINC128(context->bitcount, freespace << 3); 749162852Sdes len -= freespace; 750162852Sdes data += freespace; 751162852Sdes SHA512_Transform(context->state, context->buffer); 752162852Sdes } else { 753162852Sdes /* The buffer is not yet full */ 754162852Sdes memcpy(&context->buffer[usedspace], data, len); 755162852Sdes ADDINC128(context->bitcount, len << 3); 756162852Sdes /* Clean up: */ 757162852Sdes usedspace = freespace = 0; 758162852Sdes return; 759162852Sdes } 760162852Sdes } 761162852Sdes while (len >= SHA512_BLOCK_LENGTH) { 762162852Sdes /* Process as many complete blocks as we can */ 763162852Sdes SHA512_Transform(context->state, data); 764162852Sdes ADDINC128(context->bitcount, SHA512_BLOCK_LENGTH << 3); 765162852Sdes len -= SHA512_BLOCK_LENGTH; 766162852Sdes data += SHA512_BLOCK_LENGTH; 767162852Sdes } 768162852Sdes if (len > 0) { 769162852Sdes /* There's left-overs, so save 'em */ 770162852Sdes memcpy(context->buffer, data, len); 771162852Sdes ADDINC128(context->bitcount, len << 3); 772162852Sdes } 773162852Sdes /* Clean up: */ 774162852Sdes usedspace = freespace = 0; 775162852Sdes} 776162852Sdes 777162852Sdesvoid 778162852SdesSHA512_Pad(SHA512_CTX *context) 779162852Sdes{ 780162852Sdes unsigned int usedspace; 781162852Sdes 782162852Sdes usedspace = (context->bitcount[0] >> 3) % SHA512_BLOCK_LENGTH; 783162852Sdes if (usedspace > 0) { 784162852Sdes /* Begin padding with a 1 bit: */ 785162852Sdes context->buffer[usedspace++] = 0x80; 786162852Sdes 787162852Sdes if (usedspace <= SHA512_SHORT_BLOCK_LENGTH) { 788162852Sdes /* Set-up for the last transform: */ 789162852Sdes memset(&context->buffer[usedspace], 0, SHA512_SHORT_BLOCK_LENGTH - usedspace); 790162852Sdes } else { 791162852Sdes if (usedspace < SHA512_BLOCK_LENGTH) { 792162852Sdes memset(&context->buffer[usedspace], 0, SHA512_BLOCK_LENGTH - usedspace); 793162852Sdes } 794162852Sdes /* Do second-to-last transform: */ 795162852Sdes SHA512_Transform(context->state, context->buffer); 796162852Sdes 797162852Sdes /* And set-up for the last transform: */ 798162852Sdes memset(context->buffer, 0, SHA512_BLOCK_LENGTH - 2); 799162852Sdes } 800162852Sdes } else { 801162852Sdes /* Prepare for final transform: */ 802162852Sdes memset(context->buffer, 0, SHA512_SHORT_BLOCK_LENGTH); 803162852Sdes 804162852Sdes /* Begin padding with a 1 bit: */ 805162852Sdes *context->buffer = 0x80; 806162852Sdes } 807162852Sdes /* Store the length of input data (in bits) in big endian format: */ 808162852Sdes BE_64_TO_8(&context->buffer[SHA512_SHORT_BLOCK_LENGTH], 809162852Sdes context->bitcount[1]); 810162852Sdes BE_64_TO_8(&context->buffer[SHA512_SHORT_BLOCK_LENGTH + 8], 811162852Sdes context->bitcount[0]); 812162852Sdes 813162852Sdes /* Final transform: */ 814162852Sdes SHA512_Transform(context->state, context->buffer); 815162852Sdes 816162852Sdes /* Clean up: */ 817162852Sdes usedspace = 0; 818162852Sdes} 819162852Sdes 820162852Sdesvoid 821162852SdesSHA512_Final(u_int8_t digest[SHA512_DIGEST_LENGTH], SHA512_CTX *context) 822162852Sdes{ 823162852Sdes SHA512_Pad(context); 824162852Sdes 825162852Sdes /* If no digest buffer is passed, we don't bother doing this: */ 826162852Sdes if (digest != NULL) { 827162852Sdes#if BYTE_ORDER == LITTLE_ENDIAN 828162852Sdes int i; 829162852Sdes 830162852Sdes /* Convert TO host byte order */ 831162852Sdes for (i = 0; i < 8; i++) 832162852Sdes BE_64_TO_8(digest + i * 8, context->state[i]); 833162852Sdes#else 834162852Sdes memcpy(digest, context->state, SHA512_DIGEST_LENGTH); 835162852Sdes#endif 836162852Sdes memset(context, 0, sizeof(*context)); 837162852Sdes } 838162852Sdes} 839162852Sdes 840162852Sdes 841162852Sdes#if 0 842162852Sdes/*** SHA-384: *********************************************************/ 843162852Sdesvoid 844162852SdesSHA384_Init(SHA384_CTX *context) 845162852Sdes{ 846162852Sdes if (context == NULL) 847162852Sdes return; 848162852Sdes memcpy(context->state, sha384_initial_hash_value, 849162852Sdes sizeof(sha384_initial_hash_value)); 850162852Sdes memset(context->buffer, 0, sizeof(context->buffer)); 851162852Sdes context->bitcount[0] = context->bitcount[1] = 0; 852162852Sdes} 853162852Sdes 854162852Sdes__weak_alias(SHA384_Transform, SHA512_Transform); 855162852Sdes__weak_alias(SHA384_Update, SHA512_Update); 856162852Sdes__weak_alias(SHA384_Pad, SHA512_Pad); 857162852Sdes 858162852Sdesvoid 859162852SdesSHA384_Final(u_int8_t digest[SHA384_DIGEST_LENGTH], SHA384_CTX *context) 860162852Sdes{ 861162852Sdes SHA384_Pad(context); 862162852Sdes 863162852Sdes /* If no digest buffer is passed, we don't bother doing this: */ 864162852Sdes if (digest != NULL) { 865162852Sdes#if BYTE_ORDER == LITTLE_ENDIAN 866162852Sdes int i; 867162852Sdes 868162852Sdes /* Convert TO host byte order */ 869162852Sdes for (i = 0; i < 6; i++) 870162852Sdes BE_64_TO_8(digest + i * 8, context->state[i]); 871162852Sdes#else 872162852Sdes memcpy(digest, context->state, SHA384_DIGEST_LENGTH); 873162852Sdes#endif 874162852Sdes } 875162852Sdes 876162852Sdes /* Zero out state data */ 877162852Sdes memset(context, 0, sizeof(*context)); 878162852Sdes} 879162852Sdes#endif 880162852Sdes 881162852Sdes#endif /* !defined(HAVE_EVP_SHA256) && !defined(HAVE_SHA256_UPDATE) && \ 882162852Sdes (OPENSSL_VERSION_NUMBER >= 0x00907000L) */ 883