10a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang/* $NetBSD: sha2.c,v 1.4 2006/09/09 16:22:36 manu Exp $ */ 20a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 30a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang/* Id: sha2.c,v 1.6 2004/09/21 14:35:25 ludvigm Exp */ 40a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 50a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang/* 60a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * sha2.c 70a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * 80a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * Version 1.0.0beta1 90a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * 100a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * Written by Aaron D. Gifford <me@aarongifford.com> 110a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * 120a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * Copyright 2000 Aaron D. Gifford. All rights reserved. 130a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * 140a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * Redistribution and use in source and binary forms, with or without 150a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * modification, are permitted provided that the following conditions 160a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * are met: 170a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * 1. Redistributions of source code must retain the above copyright 180a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * notice, this list of conditions and the following disclaimer. 190a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * 2. Redistributions in binary form must reproduce the above copyright 200a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * notice, this list of conditions and the following disclaimer in the 210a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * documentation and/or other materials provided with the distribution. 220a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * 3. Neither the name of the copyright holder nor the names of contributors 230a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * may be used to endorse or promote products derived from this software 240a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * without specific prior written permission. 250a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * 260a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) AND CONTRIBUTOR(S) ``AS IS'' AND 270a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 280a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 290a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR(S) OR CONTRIBUTOR(S) BE LIABLE 300a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 310a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 320a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 330a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 340a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 350a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 360a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * SUCH DAMAGE. 370a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * 380a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang */ 390a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 400a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#include "config.h" 410a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 420a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#include <sys/types.h> 430a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#include <sys/time.h> 440a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#ifndef __linux__ 450a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#include <machine/endian.h> 460a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#endif 470a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#include <crypto/sha2/sha2.h> 480a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#include <openssl/evp.h> 490a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 500a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang/* get openssl/ssleay version number */ 510a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#include <openssl/opensslv.h> 520a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 530a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#include <err.h> 540a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#include <string.h> 550a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#define bcopy(a, b, c) memcpy((b), (a), (c)) 560a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#define bzero(a, b) memset((a), 0, (b)) 570a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#define panic(a) err(1, (a)) 580a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 590a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#if OPENSSL_VERSION_NUMBER >= 0x00907000L 600a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#define HAVE_EVP_097 610a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#endif 620a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 630a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang/* 640a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * ASSERT NOTE: 650a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * Some sanity checking code is included using assert(). On my FreeBSD 660a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * system, this additional code can be removed by compiling with NDEBUG 670a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * defined. Check your own systems manpage on assert() to see how to 680a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * compile WITHOUT the sanity checking code on your system. 690a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * 700a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * UNROLLED TRANSFORM LOOP NOTE: 710a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * You can define SHA2_UNROLL_TRANSFORM to use the unrolled transform 720a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * loop version for the hash transform rounds (defined using macros 730a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * later in this file). Either define on the command line, for example: 740a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * 750a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * cc -DSHA2_UNROLL_TRANSFORM -o sha2 sha2.c sha2prog.c 760a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * 770a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * or define below: 780a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * 790a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * #define SHA2_UNROLL_TRANSFORM 800a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * 810a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang */ 820a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 830a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#define assert(x) 840a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 850a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 860a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang/*** SHA-256/384/512 Machine Architecture Definitions *****************/ 870a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang/* 880a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * BYTE_ORDER NOTE: 890a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * 900a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * Please make sure that your system defines BYTE_ORDER. If your 910a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * architecture is little-endian, make sure it also defines 920a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * LITTLE_ENDIAN and that the two (BYTE_ORDER and LITTLE_ENDIAN) are 930a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * equivilent. 940a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * 950a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * If your system does not define the above, then you can do so by 960a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * hand like this: 970a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * 980a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * #define LITTLE_ENDIAN 1234 990a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * #define BIG_ENDIAN 4321 1000a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * 1010a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * And for little-endian machines, add: 1020a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * 1030a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * #define BYTE_ORDER LITTLE_ENDIAN 1040a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * 1050a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * Or for big-endian machines: 1060a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * 1070a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * #define BYTE_ORDER BIG_ENDIAN 1080a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * 1090a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * The FreeBSD machine this was written on defines BYTE_ORDER 1100a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * appropriately by including <sys/types.h> (which in turn includes 1110a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * <machine/endian.h> where the appropriate definitions are actually 1120a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * made). 1130a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang */ 1140a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#if !defined(BYTE_ORDER) || (BYTE_ORDER != LITTLE_ENDIAN && BYTE_ORDER != BIG_ENDIAN) 1150a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#error Define BYTE_ORDER to be equal to either LITTLE_ENDIAN or BIG_ENDIAN 1160a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#endif 1170a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 1180a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang/* 1190a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * Define the followingsha2_* types to types of the correct length on 1200a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * the native archtecture. Most BSD systems and Linux define u_intXX_t 1210a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * types. Machines with very recent ANSI C headers, can use the 1220a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * uintXX_t definintions from inttypes.h by defining SHA2_USE_INTTYPES_H 1230a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * during compile or in the sha.h header file. 1240a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * 1250a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * Machines that support neither u_intXX_t nor inttypes.h's uintXX_t 1260a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * will need to define these three typedefs below (and the appropriate 1270a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * ones in sha.h too) by hand according to their system architecture. 1280a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * 1290a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * Thank you, Jun-ichiro itojun Hagino, for suggesting using u_intXX_t 1300a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * types and pointing out recent ANSI C support for uintXX_t in inttypes.h. 1310a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang */ 1320a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#if 0 /*def SHA2_USE_INTTYPES_H*/ 1330a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 1340a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangtypedef uint8_t sha2_byte; /* Exactly 1 byte */ 1350a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangtypedef uint32_t sha2_word32; /* Exactly 4 bytes */ 1360a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangtypedef uint64_t sha2_word64; /* Exactly 8 bytes */ 1370a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 1380a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#else /* SHA2_USE_INTTYPES_H */ 1390a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 1400a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangtypedef u_int8_t sha2_byte; /* Exactly 1 byte */ 1410a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangtypedef u_int32_t sha2_word32; /* Exactly 4 bytes */ 1420a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangtypedef u_int64_t sha2_word64; /* Exactly 8 bytes */ 1430a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 1440a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#endif /* SHA2_USE_INTTYPES_H */ 1450a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 1460a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 1470a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang/*** SHA-256/384/512 Various Length Definitions ***********************/ 1480a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang/* NOTE: Most of these are in sha2.h */ 1490a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#define SHA256_SHORT_BLOCK_LENGTH (SHA256_BLOCK_LENGTH - 8) 1500a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#define SHA384_SHORT_BLOCK_LENGTH (SHA384_BLOCK_LENGTH - 16) 1510a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#define SHA512_SHORT_BLOCK_LENGTH (SHA512_BLOCK_LENGTH - 16) 1520a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 1530a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 1540a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang/*** ENDIAN REVERSAL MACROS *******************************************/ 1550a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#if BYTE_ORDER == LITTLE_ENDIAN 1560a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#define REVERSE32(w,x) { \ 1570a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang sha2_word32 tmp = (w); \ 1580a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang tmp = (tmp >> 16) | (tmp << 16); \ 1590a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang (x) = ((tmp & 0xff00ff00UL) >> 8) | ((tmp & 0x00ff00ffUL) << 8); \ 1600a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang} 1610a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#define REVERSE64(w,x) { \ 1620a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang sha2_word64 tmp = (w); \ 1630a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang tmp = (tmp >> 32) | (tmp << 32); \ 1640a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang tmp = ((tmp & 0xff00ff00ff00ff00ULL) >> 8) | \ 1650a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang ((tmp & 0x00ff00ff00ff00ffULL) << 8); \ 1660a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang (x) = ((tmp & 0xffff0000ffff0000ULL) >> 16) | \ 1670a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang ((tmp & 0x0000ffff0000ffffULL) << 16); \ 1680a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang} 1690a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#endif /* BYTE_ORDER == LITTLE_ENDIAN */ 1700a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 1710a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang/* 1720a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * Macro for incrementally adding the unsigned 64-bit integer n to the 1730a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * unsigned 128-bit integer (represented using a two-element array of 1740a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * 64-bit words): 1750a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang */ 1760a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#define ADDINC128(w,n) { \ 1770a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang (w)[0] += (sha2_word64)(n); \ 1780a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if ((w)[0] < (n)) { \ 1790a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang (w)[1]++; \ 1800a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } \ 1810a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang} 1820a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 1830a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang/*** THE SIX LOGICAL FUNCTIONS ****************************************/ 1840a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang/* 1850a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * Bit shifting and rotation (used by the six SHA-XYZ logical functions: 1860a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * 1870a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * NOTE: The naming of R and S appears backwards here (R is a SHIFT and 1880a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * S is a ROTATION) because the SHA-256/384/512 description document 1890a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * (see http://csrc.nist.gov/cryptval/shs/sha256-384-512.pdf) uses this 1900a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * same "backwards" definition. 1910a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang */ 1920a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang/* Shift-right (used in SHA-256, SHA-384, and SHA-512): */ 1930a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#define R(b,x) ((x) >> (b)) 1940a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang/* 32-bit Rotate-right (used in SHA-256): */ 1950a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#define S32(b,x) (((x) >> (b)) | ((x) << (32 - (b)))) 1960a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang/* 64-bit Rotate-right (used in SHA-384 and SHA-512): */ 1970a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#define S64(b,x) (((x) >> (b)) | ((x) << (64 - (b)))) 1980a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 1990a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang/* Two of six logical functions used in SHA-256, SHA-384, and SHA-512: */ 2000a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#define Ch(x,y,z) (((x) & (y)) ^ ((~(x)) & (z))) 2010a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#define Maj(x,y,z) (((x) & (y)) ^ ((x) & (z)) ^ ((y) & (z))) 2020a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 2030a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang/* Four of six logical functions used in SHA-256: */ 2040a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#define Sigma0_256(x) (S32(2, (x)) ^ S32(13, (x)) ^ S32(22, (x))) 2050a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#define Sigma1_256(x) (S32(6, (x)) ^ S32(11, (x)) ^ S32(25, (x))) 2060a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#define sigma0_256(x) (S32(7, (x)) ^ S32(18, (x)) ^ R(3 , (x))) 2070a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#define sigma1_256(x) (S32(17, (x)) ^ S32(19, (x)) ^ R(10, (x))) 2080a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 2090a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang/* Four of six logical functions used in SHA-384 and SHA-512: */ 2100a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#define Sigma0_512(x) (S64(28, (x)) ^ S64(34, (x)) ^ S64(39, (x))) 2110a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#define Sigma1_512(x) (S64(14, (x)) ^ S64(18, (x)) ^ S64(41, (x))) 2120a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#define sigma0_512(x) (S64( 1, (x)) ^ S64( 8, (x)) ^ R( 7, (x))) 2130a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#define sigma1_512(x) (S64(19, (x)) ^ S64(61, (x)) ^ R( 6, (x))) 2140a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 2150a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang/*** INTERNAL FUNCTION PROTOTYPES *************************************/ 2160a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang/* NOTE: These should not be accessed directly from outside this 2170a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * library -- they are intended for private internal visibility/use 2180a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * only. 2190a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang */ 2200a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangvoid SHA512_Last(SHA512_CTX*); 2210a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangvoid SHA256_Transform(SHA256_CTX*, const sha2_word32*); 2220a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangvoid SHA512_Transform(SHA512_CTX*, const sha2_word64*); 2230a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 2240a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 2250a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang/*** SHA-XYZ INITIAL HASH VALUES AND CONSTANTS ************************/ 2260a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang/* Hash constant words K for SHA-256: */ 2270a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangconst static sha2_word32 K256[64] = { 2280a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0x428a2f98UL, 0x71374491UL, 0xb5c0fbcfUL, 0xe9b5dba5UL, 2290a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0x3956c25bUL, 0x59f111f1UL, 0x923f82a4UL, 0xab1c5ed5UL, 2300a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0xd807aa98UL, 0x12835b01UL, 0x243185beUL, 0x550c7dc3UL, 2310a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0x72be5d74UL, 0x80deb1feUL, 0x9bdc06a7UL, 0xc19bf174UL, 2320a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0xe49b69c1UL, 0xefbe4786UL, 0x0fc19dc6UL, 0x240ca1ccUL, 2330a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0x2de92c6fUL, 0x4a7484aaUL, 0x5cb0a9dcUL, 0x76f988daUL, 2340a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0x983e5152UL, 0xa831c66dUL, 0xb00327c8UL, 0xbf597fc7UL, 2350a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0xc6e00bf3UL, 0xd5a79147UL, 0x06ca6351UL, 0x14292967UL, 2360a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0x27b70a85UL, 0x2e1b2138UL, 0x4d2c6dfcUL, 0x53380d13UL, 2370a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0x650a7354UL, 0x766a0abbUL, 0x81c2c92eUL, 0x92722c85UL, 2380a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0xa2bfe8a1UL, 0xa81a664bUL, 0xc24b8b70UL, 0xc76c51a3UL, 2390a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0xd192e819UL, 0xd6990624UL, 0xf40e3585UL, 0x106aa070UL, 2400a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0x19a4c116UL, 0x1e376c08UL, 0x2748774cUL, 0x34b0bcb5UL, 2410a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0x391c0cb3UL, 0x4ed8aa4aUL, 0x5b9cca4fUL, 0x682e6ff3UL, 2420a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0x748f82eeUL, 0x78a5636fUL, 0x84c87814UL, 0x8cc70208UL, 2430a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0x90befffaUL, 0xa4506cebUL, 0xbef9a3f7UL, 0xc67178f2UL 2440a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang}; 2450a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 2460a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang/* Initial hash value H for SHA-256: */ 2470a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangconst static sha2_word32 sha256_initial_hash_value[8] = { 2480a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0x6a09e667UL, 2490a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0xbb67ae85UL, 2500a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0x3c6ef372UL, 2510a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0xa54ff53aUL, 2520a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0x510e527fUL, 2530a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0x9b05688cUL, 2540a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0x1f83d9abUL, 2550a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0x5be0cd19UL 2560a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang}; 2570a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 2580a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang/* Hash constant words K for SHA-384 and SHA-512: */ 2590a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangconst static sha2_word64 K512[80] = { 2600a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0x428a2f98d728ae22ULL, 0x7137449123ef65cdULL, 2610a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0xb5c0fbcfec4d3b2fULL, 0xe9b5dba58189dbbcULL, 2620a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0x3956c25bf348b538ULL, 0x59f111f1b605d019ULL, 2630a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0x923f82a4af194f9bULL, 0xab1c5ed5da6d8118ULL, 2640a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0xd807aa98a3030242ULL, 0x12835b0145706fbeULL, 2650a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0x243185be4ee4b28cULL, 0x550c7dc3d5ffb4e2ULL, 2660a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0x72be5d74f27b896fULL, 0x80deb1fe3b1696b1ULL, 2670a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0x9bdc06a725c71235ULL, 0xc19bf174cf692694ULL, 2680a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0xe49b69c19ef14ad2ULL, 0xefbe4786384f25e3ULL, 2690a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0x0fc19dc68b8cd5b5ULL, 0x240ca1cc77ac9c65ULL, 2700a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0x2de92c6f592b0275ULL, 0x4a7484aa6ea6e483ULL, 2710a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0x5cb0a9dcbd41fbd4ULL, 0x76f988da831153b5ULL, 2720a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0x983e5152ee66dfabULL, 0xa831c66d2db43210ULL, 2730a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0xb00327c898fb213fULL, 0xbf597fc7beef0ee4ULL, 2740a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0xc6e00bf33da88fc2ULL, 0xd5a79147930aa725ULL, 2750a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0x06ca6351e003826fULL, 0x142929670a0e6e70ULL, 2760a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0x27b70a8546d22ffcULL, 0x2e1b21385c26c926ULL, 2770a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0x4d2c6dfc5ac42aedULL, 0x53380d139d95b3dfULL, 2780a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0x650a73548baf63deULL, 0x766a0abb3c77b2a8ULL, 2790a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0x81c2c92e47edaee6ULL, 0x92722c851482353bULL, 2800a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0xa2bfe8a14cf10364ULL, 0xa81a664bbc423001ULL, 2810a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0xc24b8b70d0f89791ULL, 0xc76c51a30654be30ULL, 2820a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0xd192e819d6ef5218ULL, 0xd69906245565a910ULL, 2830a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0xf40e35855771202aULL, 0x106aa07032bbd1b8ULL, 2840a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0x19a4c116b8d2d0c8ULL, 0x1e376c085141ab53ULL, 2850a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0x2748774cdf8eeb99ULL, 0x34b0bcb5e19b48a8ULL, 2860a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0x391c0cb3c5c95a63ULL, 0x4ed8aa4ae3418acbULL, 2870a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0x5b9cca4f7763e373ULL, 0x682e6ff3d6b2b8a3ULL, 2880a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0x748f82ee5defb2fcULL, 0x78a5636f43172f60ULL, 2890a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0x84c87814a1f0ab72ULL, 0x8cc702081a6439ecULL, 2900a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0x90befffa23631e28ULL, 0xa4506cebde82bde9ULL, 2910a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0xbef9a3f7b2c67915ULL, 0xc67178f2e372532bULL, 2920a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0xca273eceea26619cULL, 0xd186b8c721c0c207ULL, 2930a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0xeada7dd6cde0eb1eULL, 0xf57d4f7fee6ed178ULL, 2940a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0x06f067aa72176fbaULL, 0x0a637dc5a2c898a6ULL, 2950a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0x113f9804bef90daeULL, 0x1b710b35131c471bULL, 2960a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0x28db77f523047d84ULL, 0x32caab7b40c72493ULL, 2970a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0x3c9ebe0a15c9bebcULL, 0x431d67c49c100d4cULL, 2980a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0x4cc5d4becb3e42b6ULL, 0x597f299cfc657e2aULL, 2990a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0x5fcb6fab3ad6faecULL, 0x6c44198c4a475817ULL 3000a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang}; 3010a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 3020a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang/* Initial hash value H for SHA-384 */ 3030a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangconst static sha2_word64 sha384_initial_hash_value[8] = { 3040a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0xcbbb9d5dc1059ed8ULL, 3050a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0x629a292a367cd507ULL, 3060a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0x9159015a3070dd17ULL, 3070a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0x152fecd8f70e5939ULL, 3080a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0x67332667ffc00b31ULL, 3090a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0x8eb44a8768581511ULL, 3100a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0xdb0c2e0d64f98fa7ULL, 3110a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0x47b5481dbefa4fa4ULL 3120a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang}; 3130a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 3140a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang/* Initial hash value H for SHA-512 */ 3150a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangconst static sha2_word64 sha512_initial_hash_value[8] = { 3160a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0x6a09e667f3bcc908ULL, 3170a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0xbb67ae8584caa73bULL, 3180a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0x3c6ef372fe94f82bULL, 3190a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0xa54ff53a5f1d36f1ULL, 3200a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0x510e527fade682d1ULL, 3210a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0x9b05688c2b3e6c1fULL, 3220a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0x1f83d9abfb41bd6bULL, 3230a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0x5be0cd19137e2179ULL 3240a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang}; 3250a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 3260a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang/* 3270a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * Constant used by SHA256/384/512_End() functions for converting the 3280a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * digest to a readable hexadecimal character string: 3290a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang */ 3300a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangstatic const char *sha2_hex_digits = "0123456789abcdef"; 3310a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 3320a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 3330a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang/*** SHA-256: *********************************************************/ 3340a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangvoid SHA256_Init(SHA256_CTX* context) { 3350a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (context == (SHA256_CTX*)0) { 3360a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return; 3370a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 3380a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang bcopy(sha256_initial_hash_value, context->state, SHA256_DIGEST_LENGTH); 3390a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang bzero(context->buffer, SHA256_BLOCK_LENGTH); 3400a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang context->bitcount = 0; 3410a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang} 3420a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 3430a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#ifdef SHA2_UNROLL_TRANSFORM 3440a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 3450a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang/* Unrolled SHA-256 round macros: */ 3460a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 3470a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#if BYTE_ORDER == LITTLE_ENDIAN 3480a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 3490a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#define ROUND256_0_TO_15(a,b,c,d,e,f,g,h) \ 3500a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang REVERSE32(*data++, W256[j]); \ 3510a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang T1 = (h) + Sigma1_256(e) + Ch((e), (f), (g)) + \ 3520a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang K256[j] + W256[j]; \ 3530a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang (d) += T1; \ 3540a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang (h) = T1 + Sigma0_256(a) + Maj((a), (b), (c)); \ 3550a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang j++ 3560a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 3570a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 3580a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#else /* BYTE_ORDER == LITTLE_ENDIAN */ 3590a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 3600a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#define ROUND256_0_TO_15(a,b,c,d,e,f,g,h) \ 3610a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang T1 = (h) + Sigma1_256(e) + Ch((e), (f), (g)) + \ 3620a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang K256[j] + (W256[j] = *data++); \ 3630a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang (d) += T1; \ 3640a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang (h) = T1 + Sigma0_256(a) + Maj((a), (b), (c)); \ 3650a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang j++ 3660a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 3670a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#endif /* BYTE_ORDER == LITTLE_ENDIAN */ 3680a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 3690a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#define ROUND256(a,b,c,d,e,f,g,h) \ 3700a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang s0 = W256[(j+1)&0x0f]; \ 3710a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang s0 = sigma0_256(s0); \ 3720a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang s1 = W256[(j+14)&0x0f]; \ 3730a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang s1 = sigma1_256(s1); \ 3740a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang T1 = (h) + Sigma1_256(e) + Ch((e), (f), (g)) + K256[j] + \ 3750a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang (W256[j&0x0f] += s1 + W256[(j+9)&0x0f] + s0); \ 3760a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang (d) += T1; \ 3770a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang (h) = T1 + Sigma0_256(a) + Maj((a), (b), (c)); \ 3780a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang j++ 3790a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 3800a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangvoid SHA256_Transform(SHA256_CTX* context, const sha2_word32* data) { 3810a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang sha2_word32 a, b, c, d, e, f, g, h, s0, s1; 3820a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang sha2_word32 T1, *W256; 3830a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang int j; 3840a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 3850a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang W256 = (sha2_word32*)context->buffer; 3860a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 3870a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Initialize registers with the prev. intermediate value */ 3880a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang a = context->state[0]; 3890a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang b = context->state[1]; 3900a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang c = context->state[2]; 3910a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang d = context->state[3]; 3920a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang e = context->state[4]; 3930a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang f = context->state[5]; 3940a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang g = context->state[6]; 3950a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang h = context->state[7]; 3960a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 3970a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang j = 0; 3980a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang do { 3990a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Rounds 0 to 15 (unrolled): */ 4000a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang ROUND256_0_TO_15(a,b,c,d,e,f,g,h); 4010a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang ROUND256_0_TO_15(h,a,b,c,d,e,f,g); 4020a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang ROUND256_0_TO_15(g,h,a,b,c,d,e,f); 4030a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang ROUND256_0_TO_15(f,g,h,a,b,c,d,e); 4040a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang ROUND256_0_TO_15(e,f,g,h,a,b,c,d); 4050a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang ROUND256_0_TO_15(d,e,f,g,h,a,b,c); 4060a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang ROUND256_0_TO_15(c,d,e,f,g,h,a,b); 4070a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang ROUND256_0_TO_15(b,c,d,e,f,g,h,a); 4080a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } while (j < 16); 4090a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 4100a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Now for the remaining rounds to 64: */ 4110a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang do { 4120a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang ROUND256(a,b,c,d,e,f,g,h); 4130a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang ROUND256(h,a,b,c,d,e,f,g); 4140a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang ROUND256(g,h,a,b,c,d,e,f); 4150a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang ROUND256(f,g,h,a,b,c,d,e); 4160a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang ROUND256(e,f,g,h,a,b,c,d); 4170a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang ROUND256(d,e,f,g,h,a,b,c); 4180a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang ROUND256(c,d,e,f,g,h,a,b); 4190a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang ROUND256(b,c,d,e,f,g,h,a); 4200a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } while (j < 64); 4210a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 4220a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Compute the current intermediate hash value */ 4230a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang context->state[0] += a; 4240a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang context->state[1] += b; 4250a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang context->state[2] += c; 4260a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang context->state[3] += d; 4270a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang context->state[4] += e; 4280a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang context->state[5] += f; 4290a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang context->state[6] += g; 4300a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang context->state[7] += h; 4310a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 4320a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Clean up */ 4330a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang a = b = c = d = e = f = g = h = T1 = 0; 4340a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang} 4350a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 4360a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#else /* SHA2_UNROLL_TRANSFORM */ 4370a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 4380a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangvoid SHA256_Transform(SHA256_CTX* context, const sha2_word32* data) { 4390a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang sha2_word32 a, b, c, d, e, f, g, h, s0, s1; 4400a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang sha2_word32 T1, T2, *W256; 4410a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang int j; 4420a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 4430a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang W256 = (sha2_word32*)context->buffer; 4440a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 4450a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Initialize registers with the prev. intermediate value */ 4460a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang a = context->state[0]; 4470a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang b = context->state[1]; 4480a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang c = context->state[2]; 4490a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang d = context->state[3]; 4500a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang e = context->state[4]; 4510a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang f = context->state[5]; 4520a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang g = context->state[6]; 4530a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang h = context->state[7]; 4540a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 4550a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang j = 0; 4560a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang do { 4570a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#if BYTE_ORDER == LITTLE_ENDIAN 4580a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Copy data while converting to host byte order */ 4590a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang REVERSE32(*data++,W256[j]); 4600a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Apply the SHA-256 compression function to update a..h */ 4610a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang T1 = h + Sigma1_256(e) + Ch(e, f, g) + K256[j] + W256[j]; 4620a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#else /* BYTE_ORDER == LITTLE_ENDIAN */ 4630a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Apply the SHA-256 compression function to update a..h with copy */ 4640a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang T1 = h + Sigma1_256(e) + Ch(e, f, g) + K256[j] + (W256[j] = *data++); 4650a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#endif /* BYTE_ORDER == LITTLE_ENDIAN */ 4660a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang T2 = Sigma0_256(a) + Maj(a, b, c); 4670a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang h = g; 4680a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang g = f; 4690a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang f = e; 4700a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang e = d + T1; 4710a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang d = c; 4720a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang c = b; 4730a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang b = a; 4740a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang a = T1 + T2; 4750a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 4760a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang j++; 4770a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } while (j < 16); 4780a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 4790a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang do { 4800a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Part of the message block expansion: */ 4810a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang s0 = W256[(j+1)&0x0f]; 4820a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang s0 = sigma0_256(s0); 4830a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang s1 = W256[(j+14)&0x0f]; 4840a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang s1 = sigma1_256(s1); 4850a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 4860a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Apply the SHA-256 compression function to update a..h */ 4870a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang T1 = h + Sigma1_256(e) + Ch(e, f, g) + K256[j] + 4880a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang (W256[j&0x0f] += s1 + W256[(j+9)&0x0f] + s0); 4890a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang T2 = Sigma0_256(a) + Maj(a, b, c); 4900a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang h = g; 4910a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang g = f; 4920a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang f = e; 4930a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang e = d + T1; 4940a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang d = c; 4950a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang c = b; 4960a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang b = a; 4970a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang a = T1 + T2; 4980a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 4990a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang j++; 5000a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } while (j < 64); 5010a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 5020a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Compute the current intermediate hash value */ 5030a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang context->state[0] += a; 5040a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang context->state[1] += b; 5050a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang context->state[2] += c; 5060a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang context->state[3] += d; 5070a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang context->state[4] += e; 5080a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang context->state[5] += f; 5090a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang context->state[6] += g; 5100a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang context->state[7] += h; 5110a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 5120a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Clean up */ 5130a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang a = b = c = d = e = f = g = h = T1 = T2 = 0; 5140a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang} 5150a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 5160a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#endif /* SHA2_UNROLL_TRANSFORM */ 5170a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 5180a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangvoid SHA256_Update(SHA256_CTX* context, const sha2_byte *data, size_t len) { 5190a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang unsigned int freespace, usedspace; 5200a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 5210a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (len == 0) { 5220a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Calling with no data is valid - we do nothing */ 5230a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return; 5240a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 5250a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 5260a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Sanity check: */ 5270a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang assert(context != (SHA256_CTX*)0 && data != (sha2_byte*)0); 5280a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 5290a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang usedspace = (context->bitcount >> 3) % SHA256_BLOCK_LENGTH; 5300a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (usedspace > 0) { 5310a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Calculate how much free space is available in the buffer */ 5320a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang freespace = SHA256_BLOCK_LENGTH - usedspace; 5330a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 5340a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (len >= freespace) { 5350a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Fill the buffer completely and process it */ 5360a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang bcopy(data, &context->buffer[usedspace], freespace); 5370a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang context->bitcount += freespace << 3; 5380a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang len -= freespace; 5390a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang data += freespace; 5400a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang SHA256_Transform(context, (sha2_word32*)context->buffer); 5410a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } else { 5420a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* The buffer is not yet full */ 5430a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang bcopy(data, &context->buffer[usedspace], len); 5440a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang context->bitcount += len << 3; 5450a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Clean up: */ 5460a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang usedspace = freespace = 0; 5470a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return; 5480a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 5490a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 5500a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang while (len >= SHA256_BLOCK_LENGTH) { 5510a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Process as many complete blocks as we can */ 5520a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang SHA256_Transform(context, (const sha2_word32*)data); 5530a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang context->bitcount += SHA256_BLOCK_LENGTH << 3; 5540a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang len -= SHA256_BLOCK_LENGTH; 5550a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang data += SHA256_BLOCK_LENGTH; 5560a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 5570a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (len > 0) { 5580a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* There's left-overs, so save 'em */ 5590a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang bcopy(data, context->buffer, len); 5600a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang context->bitcount += len << 3; 5610a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 5620a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Clean up: */ 5630a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang usedspace = freespace = 0; 5640a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang} 5650a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 5660a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangvoid SHA256_Final(sha2_byte digest[], SHA256_CTX* context) { 5670a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang sha2_word32 *d = (sha2_word32*)digest; 5680a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang unsigned int usedspace; 5690a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 5700a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Sanity check: */ 5710a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang assert(context != (SHA256_CTX*)0); 5720a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 5730a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* If no digest buffer is passed, we don't bother doing this: */ 5740a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (digest != (sha2_byte*)0) { 5750a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang usedspace = (context->bitcount >> 3) % SHA256_BLOCK_LENGTH; 5760a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#if BYTE_ORDER == LITTLE_ENDIAN 5770a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Convert FROM host byte order */ 5780a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang REVERSE64(context->bitcount,context->bitcount); 5790a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#endif 5800a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (usedspace > 0) { 5810a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Begin padding with a 1 bit: */ 5820a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang context->buffer[usedspace++] = 0x80; 5830a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 5840a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (usedspace <= SHA256_SHORT_BLOCK_LENGTH) { 5850a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Set-up for the last transform: */ 5860a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang bzero(&context->buffer[usedspace], SHA256_SHORT_BLOCK_LENGTH - usedspace); 5870a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } else { 5880a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (usedspace < SHA256_BLOCK_LENGTH) { 5890a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang bzero(&context->buffer[usedspace], SHA256_BLOCK_LENGTH - usedspace); 5900a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 5910a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Do second-to-last transform: */ 5920a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang SHA256_Transform(context, (sha2_word32*)context->buffer); 5930a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 5940a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* And set-up for the last transform: */ 5950a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang bzero(context->buffer, SHA256_SHORT_BLOCK_LENGTH); 5960a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 5970a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } else { 5980a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Set-up for the last transform: */ 5990a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang bzero(context->buffer, SHA256_SHORT_BLOCK_LENGTH); 6000a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 6010a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Begin padding with a 1 bit: */ 6020a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang *context->buffer = 0x80; 6030a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 6040a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Set the bit count: */ 6050a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang *(sha2_word64*)&context->buffer[SHA256_SHORT_BLOCK_LENGTH] = context->bitcount; 6060a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 6070a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Final transform: */ 6080a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang SHA256_Transform(context, (sha2_word32*)context->buffer); 6090a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 6100a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#if BYTE_ORDER == LITTLE_ENDIAN 6110a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang { 6120a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Convert TO host byte order */ 6130a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang int j; 6140a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang for (j = 0; j < 8; j++) { 6150a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang REVERSE32(context->state[j],context->state[j]); 6160a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang *d++ = context->state[j]; 6170a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 6180a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 6190a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#else 6200a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang bcopy(context->state, d, SHA256_DIGEST_LENGTH); 6210a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#endif 6220a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 6230a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 6240a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Clean up state data: */ 6250a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang bzero(context, sizeof(*context)); 6260a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang usedspace = 0; 6270a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang} 6280a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 6290a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangchar *SHA256_End(SHA256_CTX* context, char buffer[]) { 6300a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang sha2_byte digest[SHA256_DIGEST_LENGTH], *d = digest; 6310a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang int i; 6320a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 6330a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Sanity check: */ 6340a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang assert(context != (SHA256_CTX*)0); 6350a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 6360a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (buffer != (char*)0) { 6370a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang SHA256_Final(digest, context); 6380a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 6390a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang for (i = 0; i < SHA256_DIGEST_LENGTH; i++) { 6400a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang *buffer++ = sha2_hex_digits[(*d & 0xf0) >> 4]; 6410a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang *buffer++ = sha2_hex_digits[*d & 0x0f]; 6420a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang d++; 6430a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 6440a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang *buffer = (char)0; 6450a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } else { 6460a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang bzero(context, sizeof(*context)); 6470a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 6480a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang bzero(digest, SHA256_DIGEST_LENGTH); 6490a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return buffer; 6500a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang} 6510a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 6520a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangchar* SHA256_Data(const sha2_byte* data, size_t len, char digest[SHA256_DIGEST_STRING_LENGTH]) { 6530a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang SHA256_CTX context; 6540a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 6550a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang SHA256_Init(&context); 6560a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang SHA256_Update(&context, data, len); 6570a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return SHA256_End(&context, digest); 6580a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang} 6590a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 6600a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 6610a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang/*** SHA-512: *********************************************************/ 6620a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangvoid SHA512_Init(SHA512_CTX* context) { 6630a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (context == (SHA512_CTX*)0) { 6640a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return; 6650a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 6660a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang bcopy(sha512_initial_hash_value, context->state, SHA512_DIGEST_LENGTH); 6670a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang bzero(context->buffer, SHA512_BLOCK_LENGTH); 6680a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang context->bitcount[0] = context->bitcount[1] = 0; 6690a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang} 6700a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 6710a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#ifdef SHA2_UNROLL_TRANSFORM 6720a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 6730a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang/* Unrolled SHA-512 round macros: */ 6740a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#if BYTE_ORDER == LITTLE_ENDIAN 6750a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 6760a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#define ROUND512_0_TO_15(a,b,c,d,e,f,g,h) \ 6770a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang REVERSE64(*data++, W512[j]); \ 6780a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang T1 = (h) + Sigma1_512(e) + Ch((e), (f), (g)) + \ 6790a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang K512[j] + W512[j]; \ 6800a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang (d) += T1, \ 6810a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang (h) = T1 + Sigma0_512(a) + Maj((a), (b), (c)), \ 6820a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang j++ 6830a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 6840a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 6850a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#else /* BYTE_ORDER == LITTLE_ENDIAN */ 6860a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 6870a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#define ROUND512_0_TO_15(a,b,c,d,e,f,g,h) \ 6880a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang T1 = (h) + Sigma1_512(e) + Ch((e), (f), (g)) + \ 6890a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang K512[j] + (W512[j] = *data++); \ 6900a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang (d) += T1; \ 6910a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang (h) = T1 + Sigma0_512(a) + Maj((a), (b), (c)); \ 6920a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang j++ 6930a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 6940a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#endif /* BYTE_ORDER == LITTLE_ENDIAN */ 6950a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 6960a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#define ROUND512(a,b,c,d,e,f,g,h) \ 6970a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang s0 = W512[(j+1)&0x0f]; \ 6980a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang s0 = sigma0_512(s0); \ 6990a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang s1 = W512[(j+14)&0x0f]; \ 7000a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang s1 = sigma1_512(s1); \ 7010a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang T1 = (h) + Sigma1_512(e) + Ch((e), (f), (g)) + K512[j] + \ 7020a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang (W512[j&0x0f] += s1 + W512[(j+9)&0x0f] + s0); \ 7030a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang (d) += T1; \ 7040a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang (h) = T1 + Sigma0_512(a) + Maj((a), (b), (c)); \ 7050a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang j++ 7060a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 7070a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangvoid SHA512_Transform(SHA512_CTX* context, const sha2_word64* data) { 7080a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang sha2_word64 a, b, c, d, e, f, g, h, s0, s1; 7090a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang sha2_word64 T1, *W512 = (sha2_word64*)context->buffer; 7100a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang int j; 7110a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 7120a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Initialize registers with the prev. intermediate value */ 7130a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang a = context->state[0]; 7140a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang b = context->state[1]; 7150a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang c = context->state[2]; 7160a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang d = context->state[3]; 7170a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang e = context->state[4]; 7180a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang f = context->state[5]; 7190a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang g = context->state[6]; 7200a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang h = context->state[7]; 7210a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 7220a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang j = 0; 7230a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang do { 7240a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang ROUND512_0_TO_15(a,b,c,d,e,f,g,h); 7250a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang ROUND512_0_TO_15(h,a,b,c,d,e,f,g); 7260a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang ROUND512_0_TO_15(g,h,a,b,c,d,e,f); 7270a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang ROUND512_0_TO_15(f,g,h,a,b,c,d,e); 7280a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang ROUND512_0_TO_15(e,f,g,h,a,b,c,d); 7290a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang ROUND512_0_TO_15(d,e,f,g,h,a,b,c); 7300a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang ROUND512_0_TO_15(c,d,e,f,g,h,a,b); 7310a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang ROUND512_0_TO_15(b,c,d,e,f,g,h,a); 7320a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } while (j < 16); 7330a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 7340a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Now for the remaining rounds up to 79: */ 7350a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang do { 7360a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang ROUND512(a,b,c,d,e,f,g,h); 7370a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang ROUND512(h,a,b,c,d,e,f,g); 7380a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang ROUND512(g,h,a,b,c,d,e,f); 7390a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang ROUND512(f,g,h,a,b,c,d,e); 7400a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang ROUND512(e,f,g,h,a,b,c,d); 7410a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang ROUND512(d,e,f,g,h,a,b,c); 7420a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang ROUND512(c,d,e,f,g,h,a,b); 7430a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang ROUND512(b,c,d,e,f,g,h,a); 7440a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } while (j < 80); 7450a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 7460a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Compute the current intermediate hash value */ 7470a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang context->state[0] += a; 7480a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang context->state[1] += b; 7490a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang context->state[2] += c; 7500a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang context->state[3] += d; 7510a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang context->state[4] += e; 7520a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang context->state[5] += f; 7530a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang context->state[6] += g; 7540a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang context->state[7] += h; 7550a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 7560a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Clean up */ 7570a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang a = b = c = d = e = f = g = h = T1 = 0; 7580a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang} 7590a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 7600a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#else /* SHA2_UNROLL_TRANSFORM */ 7610a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 7620a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangvoid SHA512_Transform(SHA512_CTX* context, const sha2_word64* data) { 7630a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang sha2_word64 a, b, c, d, e, f, g, h, s0, s1; 7640a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang sha2_word64 T1, T2, *W512 = (sha2_word64*)context->buffer; 7650a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang int j; 7660a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 7670a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Initialize registers with the prev. intermediate value */ 7680a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang a = context->state[0]; 7690a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang b = context->state[1]; 7700a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang c = context->state[2]; 7710a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang d = context->state[3]; 7720a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang e = context->state[4]; 7730a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang f = context->state[5]; 7740a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang g = context->state[6]; 7750a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang h = context->state[7]; 7760a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 7770a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang j = 0; 7780a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang do { 7790a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#if BYTE_ORDER == LITTLE_ENDIAN 7800a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Convert TO host byte order */ 7810a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang REVERSE64(*data++, W512[j]); 7820a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Apply the SHA-512 compression function to update a..h */ 7830a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang T1 = h + Sigma1_512(e) + Ch(e, f, g) + K512[j] + W512[j]; 7840a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#else /* BYTE_ORDER == LITTLE_ENDIAN */ 7850a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Apply the SHA-512 compression function to update a..h with copy */ 7860a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang T1 = h + Sigma1_512(e) + Ch(e, f, g) + K512[j] + (W512[j] = *data++); 7870a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#endif /* BYTE_ORDER == LITTLE_ENDIAN */ 7880a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang T2 = Sigma0_512(a) + Maj(a, b, c); 7890a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang h = g; 7900a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang g = f; 7910a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang f = e; 7920a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang e = d + T1; 7930a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang d = c; 7940a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang c = b; 7950a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang b = a; 7960a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang a = T1 + T2; 7970a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 7980a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang j++; 7990a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } while (j < 16); 8000a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 8010a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang do { 8020a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Part of the message block expansion: */ 8030a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang s0 = W512[(j+1)&0x0f]; 8040a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang s0 = sigma0_512(s0); 8050a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang s1 = W512[(j+14)&0x0f]; 8060a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang s1 = sigma1_512(s1); 8070a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 8080a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Apply the SHA-512 compression function to update a..h */ 8090a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang T1 = h + Sigma1_512(e) + Ch(e, f, g) + K512[j] + 8100a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang (W512[j&0x0f] += s1 + W512[(j+9)&0x0f] + s0); 8110a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang T2 = Sigma0_512(a) + Maj(a, b, c); 8120a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang h = g; 8130a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang g = f; 8140a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang f = e; 8150a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang e = d + T1; 8160a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang d = c; 8170a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang c = b; 8180a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang b = a; 8190a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang a = T1 + T2; 8200a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 8210a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang j++; 8220a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } while (j < 80); 8230a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 8240a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Compute the current intermediate hash value */ 8250a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang context->state[0] += a; 8260a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang context->state[1] += b; 8270a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang context->state[2] += c; 8280a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang context->state[3] += d; 8290a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang context->state[4] += e; 8300a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang context->state[5] += f; 8310a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang context->state[6] += g; 8320a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang context->state[7] += h; 8330a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 8340a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Clean up */ 8350a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang a = b = c = d = e = f = g = h = T1 = T2 = 0; 8360a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang} 8370a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 8380a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#endif /* SHA2_UNROLL_TRANSFORM */ 8390a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 8400a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangvoid SHA512_Update(SHA512_CTX* context, const sha2_byte *data, size_t len) { 8410a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang unsigned int freespace, usedspace; 8420a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 8430a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (len == 0) { 8440a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Calling with no data is valid - we do nothing */ 8450a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return; 8460a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 8470a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 8480a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Sanity check: */ 8490a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang assert(context != (SHA512_CTX*)0 && data != (sha2_byte*)0); 8500a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 8510a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang usedspace = (context->bitcount[0] >> 3) % SHA512_BLOCK_LENGTH; 8520a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (usedspace > 0) { 8530a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Calculate how much free space is available in the buffer */ 8540a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang freespace = SHA512_BLOCK_LENGTH - usedspace; 8550a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 8560a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (len >= freespace) { 8570a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Fill the buffer completely and process it */ 8580a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang bcopy(data, &context->buffer[usedspace], freespace); 8590a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang ADDINC128(context->bitcount, freespace << 3); 8600a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang len -= freespace; 8610a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang data += freespace; 8620a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang SHA512_Transform(context, (sha2_word64*)context->buffer); 8630a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } else { 8640a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* The buffer is not yet full */ 8650a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang bcopy(data, &context->buffer[usedspace], len); 8660a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang ADDINC128(context->bitcount, len << 3); 8670a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Clean up: */ 8680a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang usedspace = freespace = 0; 8690a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return; 8700a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 8710a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 8720a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang while (len >= SHA512_BLOCK_LENGTH) { 8730a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Process as many complete blocks as we can */ 8740a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang SHA512_Transform(context, (const sha2_word64*)data); 8750a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang ADDINC128(context->bitcount, SHA512_BLOCK_LENGTH << 3); 8760a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang len -= SHA512_BLOCK_LENGTH; 8770a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang data += SHA512_BLOCK_LENGTH; 8780a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 8790a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (len > 0) { 8800a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* There's left-overs, so save 'em */ 8810a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang bcopy(data, context->buffer, len); 8820a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang ADDINC128(context->bitcount, len << 3); 8830a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 8840a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Clean up: */ 8850a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang usedspace = freespace = 0; 8860a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang} 8870a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 8880a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangvoid SHA512_Last(SHA512_CTX* context) { 8890a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang unsigned int usedspace; 8900a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 8910a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang usedspace = (context->bitcount[0] >> 3) % SHA512_BLOCK_LENGTH; 8920a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#if BYTE_ORDER == LITTLE_ENDIAN 8930a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Convert FROM host byte order */ 8940a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang REVERSE64(context->bitcount[0],context->bitcount[0]); 8950a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang REVERSE64(context->bitcount[1],context->bitcount[1]); 8960a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#endif 8970a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (usedspace > 0) { 8980a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Begin padding with a 1 bit: */ 8990a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang context->buffer[usedspace++] = 0x80; 9000a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 9010a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (usedspace <= SHA512_SHORT_BLOCK_LENGTH) { 9020a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Set-up for the last transform: */ 9030a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang bzero(&context->buffer[usedspace], SHA512_SHORT_BLOCK_LENGTH - usedspace); 9040a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } else { 9050a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (usedspace < SHA512_BLOCK_LENGTH) { 9060a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang bzero(&context->buffer[usedspace], SHA512_BLOCK_LENGTH - usedspace); 9070a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 9080a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Do second-to-last transform: */ 9090a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang SHA512_Transform(context, (sha2_word64*)context->buffer); 9100a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 9110a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* And set-up for the last transform: */ 9120a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang bzero(context->buffer, SHA512_BLOCK_LENGTH - 2); 9130a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 9140a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } else { 9150a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Prepare for final transform: */ 9160a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang bzero(context->buffer, SHA512_SHORT_BLOCK_LENGTH); 9170a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 9180a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Begin padding with a 1 bit: */ 9190a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang *context->buffer = 0x80; 9200a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 9210a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Store the length of input data (in bits): */ 9220a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang *(sha2_word64*)&context->buffer[SHA512_SHORT_BLOCK_LENGTH] = context->bitcount[1]; 9230a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang *(sha2_word64*)&context->buffer[SHA512_SHORT_BLOCK_LENGTH+8] = context->bitcount[0]; 9240a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 9250a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Final transform: */ 9260a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang SHA512_Transform(context, (sha2_word64*)context->buffer); 9270a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang} 9280a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 9290a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangvoid SHA512_Final(sha2_byte digest[], SHA512_CTX* context) { 9300a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang sha2_word64 *d = (sha2_word64*)digest; 9310a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 9320a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Sanity check: */ 9330a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang assert(context != (SHA512_CTX*)0); 9340a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 9350a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* If no digest buffer is passed, we don't bother doing this: */ 9360a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (digest != (sha2_byte*)0) { 9370a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang SHA512_Last(context); 9380a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 9390a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Save the hash data for output: */ 9400a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#if BYTE_ORDER == LITTLE_ENDIAN 9410a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang { 9420a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Convert TO host byte order */ 9430a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang int j; 9440a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang for (j = 0; j < 8; j++) { 9450a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang REVERSE64(context->state[j],context->state[j]); 9460a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang *d++ = context->state[j]; 9470a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 9480a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 9490a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#else 9500a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang bcopy(context->state, d, SHA512_DIGEST_LENGTH); 9510a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#endif 9520a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 9530a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 9540a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Zero out state data */ 9550a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang bzero(context, sizeof(*context)); 9560a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang} 9570a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 9580a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangchar *SHA512_End(SHA512_CTX* context, char buffer[]) { 9590a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang sha2_byte digest[SHA512_DIGEST_LENGTH], *d = digest; 9600a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang int i; 9610a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 9620a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Sanity check: */ 9630a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang assert(context != (SHA512_CTX*)0); 9640a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 9650a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (buffer != (char*)0) { 9660a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang SHA512_Final(digest, context); 9670a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 9680a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang for (i = 0; i < SHA512_DIGEST_LENGTH; i++) { 9690a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang *buffer++ = sha2_hex_digits[(*d & 0xf0) >> 4]; 9700a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang *buffer++ = sha2_hex_digits[*d & 0x0f]; 9710a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang d++; 9720a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 9730a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang *buffer = (char)0; 9740a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } else { 9750a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang bzero(context, sizeof(*context)); 9760a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 9770a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang bzero(digest, SHA512_DIGEST_LENGTH); 9780a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return buffer; 9790a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang} 9800a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 9810a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangchar* SHA512_Data(const sha2_byte* data, size_t len, char digest[SHA512_DIGEST_STRING_LENGTH]) { 9820a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang SHA512_CTX context; 9830a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 9840a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang SHA512_Init(&context); 9850a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang SHA512_Update(&context, data, len); 9860a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return SHA512_End(&context, digest); 9870a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang} 9880a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 9890a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 9900a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang/*** SHA-384: *********************************************************/ 9910a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangvoid SHA384_Init(SHA384_CTX* context) { 9920a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (context == (SHA384_CTX*)0) { 9930a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return; 9940a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 9950a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang bcopy(sha384_initial_hash_value, context->state, SHA512_DIGEST_LENGTH); 9960a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang bzero(context->buffer, SHA384_BLOCK_LENGTH); 9970a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang context->bitcount[0] = context->bitcount[1] = 0; 9980a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang} 9990a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 10000a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangvoid SHA384_Update(SHA384_CTX* context, const sha2_byte* data, size_t len) { 10010a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang SHA512_Update((SHA512_CTX*)context, data, len); 10020a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang} 10030a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 10040a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangvoid SHA384_Final(sha2_byte digest[], SHA384_CTX* context) { 10050a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang sha2_word64 *d = (sha2_word64*)digest; 10060a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 10070a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Sanity check: */ 10080a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang assert(context != (SHA384_CTX*)0); 10090a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 10100a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* If no digest buffer is passed, we don't bother doing this: */ 10110a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (digest != (sha2_byte*)0) { 10120a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang SHA512_Last((SHA512_CTX*)context); 10130a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 10140a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Save the hash data for output: */ 10150a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#if BYTE_ORDER == LITTLE_ENDIAN 10160a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang { 10170a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Convert TO host byte order */ 10180a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang int j; 10190a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang for (j = 0; j < 6; j++) { 10200a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang REVERSE64(context->state[j],context->state[j]); 10210a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang *d++ = context->state[j]; 10220a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 10230a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 10240a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#else 10250a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang bcopy(context->state, d, SHA384_DIGEST_LENGTH); 10260a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#endif 10270a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 10280a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 10290a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Zero out state data */ 10300a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang bzero(context, sizeof(*context)); 10310a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang} 10320a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 10330a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangchar *SHA384_End(SHA384_CTX* context, char buffer[]) { 10340a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang sha2_byte digest[SHA384_DIGEST_LENGTH], *d = digest; 10350a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang int i; 10360a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 10370a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Sanity check: */ 10380a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang assert(context != (SHA384_CTX*)0); 10390a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 10400a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (buffer != (char*)0) { 10410a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang SHA384_Final(digest, context); 10420a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 10430a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang for (i = 0; i < SHA384_DIGEST_LENGTH; i++) { 10440a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang *buffer++ = sha2_hex_digits[(*d & 0xf0) >> 4]; 10450a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang *buffer++ = sha2_hex_digits[*d & 0x0f]; 10460a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang d++; 10470a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 10480a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang *buffer = (char)0; 10490a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } else { 10500a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang bzero(context, sizeof(*context)); 10510a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 10520a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang bzero(digest, SHA384_DIGEST_LENGTH); 10530a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return buffer; 10540a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang} 10550a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 10560a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangchar* SHA384_Data(const sha2_byte* data, size_t len, char digest[SHA384_DIGEST_STRING_LENGTH]) { 10570a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang SHA384_CTX context; 10580a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 10590a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang SHA384_Init(&context); 10600a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang SHA384_Update(&context, data, len); 10610a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return SHA384_End(&context, digest); 10620a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang} 10630a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 10640a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang/*glue*/ 10650a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#ifdef HAVE_EVP_097 10660a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 10670a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang/* SHA256 */ 10680a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#define data(ctx) ((SHA256_CTX *)(ctx)->md_data) 10690a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangstatic int sha256_init(EVP_MD_CTX *ctx) 10700a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang{ 10710a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang SHA256_Init(data(ctx)); 10720a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return 1; 10730a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang} 10740a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangstatic int sha256_update(EVP_MD_CTX *ctx, const void *data, unsigned long count) 10750a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang{ 10760a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang SHA256_Update(data(ctx), data, count); 10770a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return 1; 10780a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang} 10790a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangstatic int sha256_final(EVP_MD_CTX *ctx, unsigned char *md) 10800a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang{ 10810a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang SHA256_Final(md, data(ctx)); 10820a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return 1; 10830a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang} 10840a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#undef data 10850a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 10860a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang/* SHA384 */ 10870a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#define data(ctx) ((SHA384_CTX *)(ctx)->md_data) 10880a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangstatic int sha384_init(EVP_MD_CTX *ctx) 10890a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang{ 10900a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang SHA384_Init(data(ctx)); 10910a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return 1; 10920a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang} 10930a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangstatic int sha384_update(EVP_MD_CTX *ctx, const void *data, unsigned long count) 10940a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang{ 10950a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang SHA384_Update(data(ctx), data, count); 10960a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return 1; 10970a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang} 10980a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangstatic int sha384_final(EVP_MD_CTX *ctx, unsigned char *md) 10990a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang{ 11000a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang SHA384_Final(md, data(ctx)); 11010a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return 1; 11020a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang} 11030a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#undef data 11040a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 11050a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang/* SHA512 */ 11060a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#define data(ctx) ((SHA512_CTX *)(ctx)->md_data) 11070a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangstatic int sha512_init(EVP_MD_CTX *ctx) 11080a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang{ 11090a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang SHA512_Init(data(ctx)); 11100a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return 1; 11110a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang} 11120a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangstatic int sha512_update(EVP_MD_CTX *ctx, const void *data, unsigned long count) 11130a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang{ 11140a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang SHA512_Update(data(ctx), data, count); 11150a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return 1; 11160a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang} 11170a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangstatic int sha512_final(EVP_MD_CTX *ctx, unsigned char *md) 11180a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang{ 11190a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang SHA512_Final(md, data(ctx)); 11200a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return 1; 11210a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang} 11220a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#undef data 11230a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#endif 11240a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 11250a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangstatic struct env_md_st sha2_256_md = { 11260a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0, /*NID_sha1*/ 11270a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0, /*NID_sha1WithRSAEncryption*/ 11280a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang SHA256_DIGEST_LENGTH, 11290a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#ifdef HAVE_EVP_097 11300a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0, /* flags */ 11310a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang sha256_init, 11320a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang sha256_update, 11330a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang sha256_final, 11340a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang NULL, /* copy */ 11350a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang NULL, /* cleanup */ 11360a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#else 11370a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang SHA256_Init, 11380a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang SHA256_Update, 11390a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang SHA256_Final, 11400a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#endif 11410a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang NULL, NULL, {0, 0, 0, 0}, 11420a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang SHA256_BLOCK_LENGTH, 11430a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang sizeof(struct env_md_st *) + sizeof(SHA256_CTX), 11440a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang}; 11450a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 11460a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangstruct env_md_st *EVP_sha2_256(void) 11470a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang{ 11480a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return(&sha2_256_md); 11490a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang} 11500a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 11510a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangstatic struct env_md_st sha2_384_md = { 11520a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0, /*NID_sha1*/ 11530a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0, /*NID_sha1WithRSAEncryption*/ 11540a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang SHA384_DIGEST_LENGTH, 11550a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#ifdef HAVE_EVP_097 11560a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0, /* flags */ 11570a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang sha384_init, 11580a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang sha384_update, 11590a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang sha384_final, 11600a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang NULL, /* copy */ 11610a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang NULL, /* cleanup */ 11620a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#else 11630a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang SHA384_Init, 11640a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang SHA384_Update, 11650a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang SHA384_Final, 11660a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#endif 11670a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang NULL, NULL, {0, 0, 0, 0}, 11680a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang SHA384_BLOCK_LENGTH, 11690a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang sizeof(struct env_md_st *) + sizeof(SHA384_CTX), 11700a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang}; 11710a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 11720a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangstruct env_md_st *EVP_sha2_384(void) 11730a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang{ 11740a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return(&sha2_384_md); 11750a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang} 11760a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 11770a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangstatic struct env_md_st sha2_512_md = { 11780a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0, /*NID_sha1*/ 11790a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0, /*NID_sha1WithRSAEncryption*/ 11800a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang SHA512_DIGEST_LENGTH, 11810a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#ifdef HAVE_EVP_097 11820a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 0, /* flags */ 11830a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang sha512_init, 11840a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang sha512_update, 11850a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang sha512_final, 11860a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang NULL, /* copy */ 11870a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang NULL, /* cleanup */ 11880a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#else 11890a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang SHA512_Init, 11900a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang SHA512_Update, 11910a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang SHA512_Final, 11920a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#endif 11930a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang NULL, NULL, {0, 0, 0, 0}, /*EVP_PKEY_RSA_method*/ 11940a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang SHA512_BLOCK_LENGTH, 11950a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang sizeof(struct env_md_st *) + sizeof(SHA512_CTX), 11960a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang}; 11970a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 11980a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangstruct env_md_st *EVP_sha2_512(void) 11990a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang{ 12000a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return(&sha2_512_md); 12010a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang} 1202