1450 lines
40 KiB
C
1450 lines
40 KiB
C
/*
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* Copyright (C) 2005-2007, 2009, 2011, 2012 Internet Systems Consortium, Inc. ("ISC")
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
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* REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
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* AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
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* INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
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* LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
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* OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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*/
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/* $Id$ */
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/* $FreeBSD: 258945 2013-12-04 21:33:17Z roberto $ */
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/* $KAME: sha2.c,v 1.8 2001/11/08 01:07:52 itojun Exp $ */
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/*
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* sha2.c
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*
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* Version 1.0.0beta1
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*
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* Written by Aaron D. Gifford <me@aarongifford.com>
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*
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* Copyright 2000 Aaron D. Gifford. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the copyright holder nor the names of contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) AND CONTRIBUTOR(S) ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR(S) OR CONTRIBUTOR(S) BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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#include <config.h>
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#include <isc/assertions.h>
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#include <isc/platform.h>
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#include <isc/sha2.h>
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#include <isc/string.h>
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#include <isc/util.h>
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#ifdef ISC_PLATFORM_OPENSSLHASH
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void
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isc_sha224_init(isc_sha224_t *context) {
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if (context == (isc_sha224_t *)0) {
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return;
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}
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EVP_DigestInit(context, EVP_sha224());
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}
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void
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isc_sha224_invalidate(isc_sha224_t *context) {
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EVP_MD_CTX_cleanup(context);
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}
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void
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isc_sha224_update(isc_sha224_t *context, const isc_uint8_t* data, size_t len) {
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if (len == 0U) {
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/* Calling with no data is valid - we do nothing */
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return;
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}
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/* Sanity check: */
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REQUIRE(context != (isc_sha224_t *)0 && data != (isc_uint8_t*)0);
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EVP_DigestUpdate(context, (const void *) data, len);
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}
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void
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isc_sha224_final(isc_uint8_t digest[], isc_sha224_t *context) {
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/* Sanity check: */
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REQUIRE(context != (isc_sha224_t *)0);
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/* If no digest buffer is passed, we don't bother doing this: */
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if (digest != (isc_uint8_t*)0) {
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EVP_DigestFinal(context, digest, NULL);
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} else {
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EVP_MD_CTX_cleanup(context);
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}
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}
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void
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isc_sha256_init(isc_sha256_t *context) {
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if (context == (isc_sha256_t *)0) {
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return;
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}
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EVP_DigestInit(context, EVP_sha256());
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}
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void
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isc_sha256_invalidate(isc_sha256_t *context) {
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EVP_MD_CTX_cleanup(context);
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}
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void
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isc_sha256_update(isc_sha256_t *context, const isc_uint8_t *data, size_t len) {
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if (len == 0U) {
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/* Calling with no data is valid - we do nothing */
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return;
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}
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/* Sanity check: */
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REQUIRE(context != (isc_sha256_t *)0 && data != (isc_uint8_t*)0);
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EVP_DigestUpdate(context, (const void *) data, len);
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}
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void
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isc_sha256_final(isc_uint8_t digest[], isc_sha256_t *context) {
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/* Sanity check: */
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REQUIRE(context != (isc_sha256_t *)0);
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/* If no digest buffer is passed, we don't bother doing this: */
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if (digest != (isc_uint8_t*)0) {
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EVP_DigestFinal(context, digest, NULL);
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} else {
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EVP_MD_CTX_cleanup(context);
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}
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}
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void
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isc_sha512_init(isc_sha512_t *context) {
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if (context == (isc_sha512_t *)0) {
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return;
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}
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EVP_DigestInit(context, EVP_sha512());
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}
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void
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isc_sha512_invalidate(isc_sha512_t *context) {
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EVP_MD_CTX_cleanup(context);
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}
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void isc_sha512_update(isc_sha512_t *context, const isc_uint8_t *data, size_t len) {
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if (len == 0U) {
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/* Calling with no data is valid - we do nothing */
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return;
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}
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/* Sanity check: */
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REQUIRE(context != (isc_sha512_t *)0 && data != (isc_uint8_t*)0);
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EVP_DigestUpdate(context, (const void *) data, len);
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}
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void isc_sha512_final(isc_uint8_t digest[], isc_sha512_t *context) {
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/* Sanity check: */
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REQUIRE(context != (isc_sha512_t *)0);
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/* If no digest buffer is passed, we don't bother doing this: */
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if (digest != (isc_uint8_t*)0) {
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EVP_DigestFinal(context, digest, NULL);
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} else {
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EVP_MD_CTX_cleanup(context);
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}
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}
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void
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isc_sha384_init(isc_sha384_t *context) {
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if (context == (isc_sha384_t *)0) {
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return;
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}
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EVP_DigestInit(context, EVP_sha384());
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}
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void
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isc_sha384_invalidate(isc_sha384_t *context) {
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EVP_MD_CTX_cleanup(context);
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}
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void
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isc_sha384_update(isc_sha384_t *context, const isc_uint8_t* data, size_t len) {
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if (len == 0U) {
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/* Calling with no data is valid - we do nothing */
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return;
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}
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/* Sanity check: */
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REQUIRE(context != (isc_sha512_t *)0 && data != (isc_uint8_t*)0);
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EVP_DigestUpdate(context, (const void *) data, len);
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}
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void
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isc_sha384_final(isc_uint8_t digest[], isc_sha384_t *context) {
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/* Sanity check: */
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REQUIRE(context != (isc_sha384_t *)0);
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/* If no digest buffer is passed, we don't bother doing this: */
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if (digest != (isc_uint8_t*)0) {
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EVP_DigestFinal(context, digest, NULL);
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} else {
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EVP_MD_CTX_cleanup(context);
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}
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}
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#else
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/*
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* UNROLLED TRANSFORM LOOP NOTE:
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* You can define SHA2_UNROLL_TRANSFORM to use the unrolled transform
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* loop version for the hash transform rounds (defined using macros
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* later in this file). Either define on the command line, for example:
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*
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* cc -DISC_SHA2_UNROLL_TRANSFORM -o sha2 sha2.c sha2prog.c
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*
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* or define below:
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*
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* \#define ISC_SHA2_UNROLL_TRANSFORM
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*
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*/
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/*** SHA-256/384/512 Machine Architecture Definitions *****************/
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/*
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* BYTE_ORDER NOTE:
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*
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* Please make sure that your system defines BYTE_ORDER. If your
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* architecture is little-endian, make sure it also defines
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* LITTLE_ENDIAN and that the two (BYTE_ORDER and LITTLE_ENDIAN) are
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* equivalent.
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*
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* If your system does not define the above, then you can do so by
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* hand like this:
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*
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* \#define LITTLE_ENDIAN 1234
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* \#define BIG_ENDIAN 4321
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*
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* And for little-endian machines, add:
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*
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* \#define BYTE_ORDER LITTLE_ENDIAN
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*
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* Or for big-endian machines:
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*
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* \#define BYTE_ORDER BIG_ENDIAN
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*
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* The FreeBSD machine this was written on defines BYTE_ORDER
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* appropriately by including <sys/types.h> (which in turn includes
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* <machine/endian.h> where the appropriate definitions are actually
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* made).
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*/
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#if !defined(BYTE_ORDER) || (BYTE_ORDER != LITTLE_ENDIAN && BYTE_ORDER != BIG_ENDIAN)
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#ifndef BYTE_ORDER
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#ifndef BIG_ENDIAN
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#define BIG_ENDIAN 4321
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#endif
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#ifndef LITTLE_ENDIAN
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#define LITTLE_ENDIAN 1234
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#endif
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#ifdef WORDS_BIGENDIAN
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#define BYTE_ORDER BIG_ENDIAN
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#else
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#define BYTE_ORDER LITTLE_ENDIAN
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#endif
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#else
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#error Define BYTE_ORDER to be equal to either LITTLE_ENDIAN or BIG_ENDIAN
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#endif
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#endif
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/*** SHA-256/384/512 Various Length Definitions ***********************/
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/* NOTE: Most of these are in sha2.h */
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#define ISC_SHA256_SHORT_BLOCK_LENGTH (ISC_SHA256_BLOCK_LENGTH - 8)
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#define ISC_SHA384_SHORT_BLOCK_LENGTH (ISC_SHA384_BLOCK_LENGTH - 16)
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#define ISC_SHA512_SHORT_BLOCK_LENGTH (ISC_SHA512_BLOCK_LENGTH - 16)
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/*** ENDIAN REVERSAL MACROS *******************************************/
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#if BYTE_ORDER == LITTLE_ENDIAN
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#define REVERSE32(w,x) { \
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isc_uint32_t tmp = (w); \
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tmp = (tmp >> 16) | (tmp << 16); \
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(x) = ((tmp & 0xff00ff00UL) >> 8) | ((tmp & 0x00ff00ffUL) << 8); \
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}
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#ifdef WIN32
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#define REVERSE64(w,x) { \
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isc_uint64_t tmp = (w); \
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tmp = (tmp >> 32) | (tmp << 32); \
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tmp = ((tmp & 0xff00ff00ff00ff00UL) >> 8) | \
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((tmp & 0x00ff00ff00ff00ffUL) << 8); \
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(x) = ((tmp & 0xffff0000ffff0000UL) >> 16) | \
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((tmp & 0x0000ffff0000ffffUL) << 16); \
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}
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#else
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#define REVERSE64(w,x) { \
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isc_uint64_t tmp = (w); \
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tmp = (tmp >> 32) | (tmp << 32); \
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tmp = ((tmp & 0xff00ff00ff00ff00ULL) >> 8) | \
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((tmp & 0x00ff00ff00ff00ffULL) << 8); \
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(x) = ((tmp & 0xffff0000ffff0000ULL) >> 16) | \
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((tmp & 0x0000ffff0000ffffULL) << 16); \
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}
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#endif
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#endif /* BYTE_ORDER == LITTLE_ENDIAN */
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/*
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* Macro for incrementally adding the unsigned 64-bit integer n to the
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* unsigned 128-bit integer (represented using a two-element array of
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* 64-bit words):
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*/
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#define ADDINC128(w,n) { \
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(w)[0] += (isc_uint64_t)(n); \
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if ((w)[0] < (n)) { \
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(w)[1]++; \
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} \
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}
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/*** THE SIX LOGICAL FUNCTIONS ****************************************/
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/*
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* Bit shifting and rotation (used by the six SHA-XYZ logical functions:
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*
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* NOTE: The naming of R and S appears backwards here (R is a SHIFT and
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* S is a ROTATION) because the SHA-256/384/512 description document
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* (see http://csrc.nist.gov/cryptval/shs/sha256-384-512.pdf) uses this
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* same "backwards" definition.
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*/
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/* Shift-right (used in SHA-256, SHA-384, and SHA-512): */
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#define R(b,x) ((x) >> (b))
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/* 32-bit Rotate-right (used in SHA-256): */
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#define S32(b,x) (((x) >> (b)) | ((x) << (32 - (b))))
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/* 64-bit Rotate-right (used in SHA-384 and SHA-512): */
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#define S64(b,x) (((x) >> (b)) | ((x) << (64 - (b))))
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/* Two of six logical functions used in SHA-256, SHA-384, and SHA-512: */
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#define Ch(x,y,z) (((x) & (y)) ^ ((~(x)) & (z)))
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#define Maj(x,y,z) (((x) & (y)) ^ ((x) & (z)) ^ ((y) & (z)))
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/* Four of six logical functions used in SHA-256: */
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#define Sigma0_256(x) (S32(2, (x)) ^ S32(13, (x)) ^ S32(22, (x)))
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#define Sigma1_256(x) (S32(6, (x)) ^ S32(11, (x)) ^ S32(25, (x)))
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#define sigma0_256(x) (S32(7, (x)) ^ S32(18, (x)) ^ R(3 , (x)))
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#define sigma1_256(x) (S32(17, (x)) ^ S32(19, (x)) ^ R(10, (x)))
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/* Four of six logical functions used in SHA-384 and SHA-512: */
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#define Sigma0_512(x) (S64(28, (x)) ^ S64(34, (x)) ^ S64(39, (x)))
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#define Sigma1_512(x) (S64(14, (x)) ^ S64(18, (x)) ^ S64(41, (x)))
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#define sigma0_512(x) (S64( 1, (x)) ^ S64( 8, (x)) ^ R( 7, (x)))
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#define sigma1_512(x) (S64(19, (x)) ^ S64(61, (x)) ^ R( 6, (x)))
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/*** INTERNAL FUNCTION PROTOTYPES *************************************/
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/* NOTE: These should not be accessed directly from outside this
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* library -- they are intended for private internal visibility/use
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* only.
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*/
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void isc_sha512_last(isc_sha512_t *);
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void isc_sha256_transform(isc_sha256_t *, const isc_uint32_t*);
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void isc_sha512_transform(isc_sha512_t *, const isc_uint64_t*);
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/*** SHA-XYZ INITIAL HASH VALUES AND CONSTANTS ************************/
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/* Hash constant words K for SHA-224 and SHA-256: */
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static const isc_uint32_t K256[64] = {
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0x428a2f98UL, 0x71374491UL, 0xb5c0fbcfUL, 0xe9b5dba5UL,
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0x3956c25bUL, 0x59f111f1UL, 0x923f82a4UL, 0xab1c5ed5UL,
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0xd807aa98UL, 0x12835b01UL, 0x243185beUL, 0x550c7dc3UL,
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0x72be5d74UL, 0x80deb1feUL, 0x9bdc06a7UL, 0xc19bf174UL,
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0xe49b69c1UL, 0xefbe4786UL, 0x0fc19dc6UL, 0x240ca1ccUL,
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0x2de92c6fUL, 0x4a7484aaUL, 0x5cb0a9dcUL, 0x76f988daUL,
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0x983e5152UL, 0xa831c66dUL, 0xb00327c8UL, 0xbf597fc7UL,
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0xc6e00bf3UL, 0xd5a79147UL, 0x06ca6351UL, 0x14292967UL,
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0x27b70a85UL, 0x2e1b2138UL, 0x4d2c6dfcUL, 0x53380d13UL,
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0x650a7354UL, 0x766a0abbUL, 0x81c2c92eUL, 0x92722c85UL,
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0xa2bfe8a1UL, 0xa81a664bUL, 0xc24b8b70UL, 0xc76c51a3UL,
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0xd192e819UL, 0xd6990624UL, 0xf40e3585UL, 0x106aa070UL,
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0x19a4c116UL, 0x1e376c08UL, 0x2748774cUL, 0x34b0bcb5UL,
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0x391c0cb3UL, 0x4ed8aa4aUL, 0x5b9cca4fUL, 0x682e6ff3UL,
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0x748f82eeUL, 0x78a5636fUL, 0x84c87814UL, 0x8cc70208UL,
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0x90befffaUL, 0xa4506cebUL, 0xbef9a3f7UL, 0xc67178f2UL
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};
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/* Initial hash value H for SHA-224: */
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static const isc_uint32_t sha224_initial_hash_value[8] = {
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0xc1059ed8UL,
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0x367cd507UL,
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0x3070dd17UL,
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0xf70e5939UL,
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0xffc00b31UL,
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0x68581511UL,
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0x64f98fa7UL,
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0xbefa4fa4UL
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};
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/* Initial hash value H for SHA-256: */
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static const isc_uint32_t sha256_initial_hash_value[8] = {
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0x6a09e667UL,
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0xbb67ae85UL,
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0x3c6ef372UL,
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0xa54ff53aUL,
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0x510e527fUL,
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0x9b05688cUL,
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0x1f83d9abUL,
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0x5be0cd19UL
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};
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#ifdef WIN32
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/* Hash constant words K for SHA-384 and SHA-512: */
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static const isc_uint64_t K512[80] = {
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0x428a2f98d728ae22UL, 0x7137449123ef65cdUL,
|
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0xb5c0fbcfec4d3b2fUL, 0xe9b5dba58189dbbcUL,
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|
0x3956c25bf348b538UL, 0x59f111f1b605d019UL,
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0x923f82a4af194f9bUL, 0xab1c5ed5da6d8118UL,
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0xd807aa98a3030242UL, 0x12835b0145706fbeUL,
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0x243185be4ee4b28cUL, 0x550c7dc3d5ffb4e2UL,
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0x72be5d74f27b896fUL, 0x80deb1fe3b1696b1UL,
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0x9bdc06a725c71235UL, 0xc19bf174cf692694UL,
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0xe49b69c19ef14ad2UL, 0xefbe4786384f25e3UL,
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0x0fc19dc68b8cd5b5UL, 0x240ca1cc77ac9c65UL,
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0x2de92c6f592b0275UL, 0x4a7484aa6ea6e483UL,
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0x5cb0a9dcbd41fbd4UL, 0x76f988da831153b5UL,
|
|
0x983e5152ee66dfabUL, 0xa831c66d2db43210UL,
|
|
0xb00327c898fb213fUL, 0xbf597fc7beef0ee4UL,
|
|
0xc6e00bf33da88fc2UL, 0xd5a79147930aa725UL,
|
|
0x06ca6351e003826fUL, 0x142929670a0e6e70UL,
|
|
0x27b70a8546d22ffcUL, 0x2e1b21385c26c926UL,
|
|
0x4d2c6dfc5ac42aedUL, 0x53380d139d95b3dfUL,
|
|
0x650a73548baf63deUL, 0x766a0abb3c77b2a8UL,
|
|
0x81c2c92e47edaee6UL, 0x92722c851482353bUL,
|
|
0xa2bfe8a14cf10364UL, 0xa81a664bbc423001UL,
|
|
0xc24b8b70d0f89791UL, 0xc76c51a30654be30UL,
|
|
0xd192e819d6ef5218UL, 0xd69906245565a910UL,
|
|
0xf40e35855771202aUL, 0x106aa07032bbd1b8UL,
|
|
0x19a4c116b8d2d0c8UL, 0x1e376c085141ab53UL,
|
|
0x2748774cdf8eeb99UL, 0x34b0bcb5e19b48a8UL,
|
|
0x391c0cb3c5c95a63UL, 0x4ed8aa4ae3418acbUL,
|
|
0x5b9cca4f7763e373UL, 0x682e6ff3d6b2b8a3UL,
|
|
0x748f82ee5defb2fcUL, 0x78a5636f43172f60UL,
|
|
0x84c87814a1f0ab72UL, 0x8cc702081a6439ecUL,
|
|
0x90befffa23631e28UL, 0xa4506cebde82bde9UL,
|
|
0xbef9a3f7b2c67915UL, 0xc67178f2e372532bUL,
|
|
0xca273eceea26619cUL, 0xd186b8c721c0c207UL,
|
|
0xeada7dd6cde0eb1eUL, 0xf57d4f7fee6ed178UL,
|
|
0x06f067aa72176fbaUL, 0x0a637dc5a2c898a6UL,
|
|
0x113f9804bef90daeUL, 0x1b710b35131c471bUL,
|
|
0x28db77f523047d84UL, 0x32caab7b40c72493UL,
|
|
0x3c9ebe0a15c9bebcUL, 0x431d67c49c100d4cUL,
|
|
0x4cc5d4becb3e42b6UL, 0x597f299cfc657e2aUL,
|
|
0x5fcb6fab3ad6faecUL, 0x6c44198c4a475817UL
|
|
};
|
|
|
|
/* Initial hash value H for SHA-384: */
|
|
static const isc_uint64_t sha384_initial_hash_value[8] = {
|
|
0xcbbb9d5dc1059ed8UL,
|
|
0x629a292a367cd507UL,
|
|
0x9159015a3070dd17UL,
|
|
0x152fecd8f70e5939UL,
|
|
0x67332667ffc00b31UL,
|
|
0x8eb44a8768581511UL,
|
|
0xdb0c2e0d64f98fa7UL,
|
|
0x47b5481dbefa4fa4UL
|
|
};
|
|
|
|
/* Initial hash value H for SHA-512: */
|
|
static const isc_uint64_t sha512_initial_hash_value[8] = {
|
|
0x6a09e667f3bcc908U,
|
|
0xbb67ae8584caa73bUL,
|
|
0x3c6ef372fe94f82bUL,
|
|
0xa54ff53a5f1d36f1UL,
|
|
0x510e527fade682d1UL,
|
|
0x9b05688c2b3e6c1fUL,
|
|
0x1f83d9abfb41bd6bUL,
|
|
0x5be0cd19137e2179UL
|
|
};
|
|
#else
|
|
/* Hash constant words K for SHA-384 and SHA-512: */
|
|
static const isc_uint64_t K512[80] = {
|
|
0x428a2f98d728ae22ULL, 0x7137449123ef65cdULL,
|
|
0xb5c0fbcfec4d3b2fULL, 0xe9b5dba58189dbbcULL,
|
|
0x3956c25bf348b538ULL, 0x59f111f1b605d019ULL,
|
|
0x923f82a4af194f9bULL, 0xab1c5ed5da6d8118ULL,
|
|
0xd807aa98a3030242ULL, 0x12835b0145706fbeULL,
|
|
0x243185be4ee4b28cULL, 0x550c7dc3d5ffb4e2ULL,
|
|
0x72be5d74f27b896fULL, 0x80deb1fe3b1696b1ULL,
|
|
0x9bdc06a725c71235ULL, 0xc19bf174cf692694ULL,
|
|
0xe49b69c19ef14ad2ULL, 0xefbe4786384f25e3ULL,
|
|
0x0fc19dc68b8cd5b5ULL, 0x240ca1cc77ac9c65ULL,
|
|
0x2de92c6f592b0275ULL, 0x4a7484aa6ea6e483ULL,
|
|
0x5cb0a9dcbd41fbd4ULL, 0x76f988da831153b5ULL,
|
|
0x983e5152ee66dfabULL, 0xa831c66d2db43210ULL,
|
|
0xb00327c898fb213fULL, 0xbf597fc7beef0ee4ULL,
|
|
0xc6e00bf33da88fc2ULL, 0xd5a79147930aa725ULL,
|
|
0x06ca6351e003826fULL, 0x142929670a0e6e70ULL,
|
|
0x27b70a8546d22ffcULL, 0x2e1b21385c26c926ULL,
|
|
0x4d2c6dfc5ac42aedULL, 0x53380d139d95b3dfULL,
|
|
0x650a73548baf63deULL, 0x766a0abb3c77b2a8ULL,
|
|
0x81c2c92e47edaee6ULL, 0x92722c851482353bULL,
|
|
0xa2bfe8a14cf10364ULL, 0xa81a664bbc423001ULL,
|
|
0xc24b8b70d0f89791ULL, 0xc76c51a30654be30ULL,
|
|
0xd192e819d6ef5218ULL, 0xd69906245565a910ULL,
|
|
0xf40e35855771202aULL, 0x106aa07032bbd1b8ULL,
|
|
0x19a4c116b8d2d0c8ULL, 0x1e376c085141ab53ULL,
|
|
0x2748774cdf8eeb99ULL, 0x34b0bcb5e19b48a8ULL,
|
|
0x391c0cb3c5c95a63ULL, 0x4ed8aa4ae3418acbULL,
|
|
0x5b9cca4f7763e373ULL, 0x682e6ff3d6b2b8a3ULL,
|
|
0x748f82ee5defb2fcULL, 0x78a5636f43172f60ULL,
|
|
0x84c87814a1f0ab72ULL, 0x8cc702081a6439ecULL,
|
|
0x90befffa23631e28ULL, 0xa4506cebde82bde9ULL,
|
|
0xbef9a3f7b2c67915ULL, 0xc67178f2e372532bULL,
|
|
0xca273eceea26619cULL, 0xd186b8c721c0c207ULL,
|
|
0xeada7dd6cde0eb1eULL, 0xf57d4f7fee6ed178ULL,
|
|
0x06f067aa72176fbaULL, 0x0a637dc5a2c898a6ULL,
|
|
0x113f9804bef90daeULL, 0x1b710b35131c471bULL,
|
|
0x28db77f523047d84ULL, 0x32caab7b40c72493ULL,
|
|
0x3c9ebe0a15c9bebcULL, 0x431d67c49c100d4cULL,
|
|
0x4cc5d4becb3e42b6ULL, 0x597f299cfc657e2aULL,
|
|
0x5fcb6fab3ad6faecULL, 0x6c44198c4a475817ULL
|
|
};
|
|
|
|
/* Initial hash value H for SHA-384: */
|
|
static const isc_uint64_t sha384_initial_hash_value[8] = {
|
|
0xcbbb9d5dc1059ed8ULL,
|
|
0x629a292a367cd507ULL,
|
|
0x9159015a3070dd17ULL,
|
|
0x152fecd8f70e5939ULL,
|
|
0x67332667ffc00b31ULL,
|
|
0x8eb44a8768581511ULL,
|
|
0xdb0c2e0d64f98fa7ULL,
|
|
0x47b5481dbefa4fa4ULL
|
|
};
|
|
|
|
/* Initial hash value H for SHA-512: */
|
|
static const isc_uint64_t sha512_initial_hash_value[8] = {
|
|
0x6a09e667f3bcc908ULL,
|
|
0xbb67ae8584caa73bULL,
|
|
0x3c6ef372fe94f82bULL,
|
|
0xa54ff53a5f1d36f1ULL,
|
|
0x510e527fade682d1ULL,
|
|
0x9b05688c2b3e6c1fULL,
|
|
0x1f83d9abfb41bd6bULL,
|
|
0x5be0cd19137e2179ULL
|
|
};
|
|
#endif
|
|
|
|
|
|
/*** SHA-224: *********************************************************/
|
|
void
|
|
isc_sha224_init(isc_sha224_t *context) {
|
|
if (context == (isc_sha256_t *)0) {
|
|
return;
|
|
}
|
|
memcpy(context->state, sha224_initial_hash_value,
|
|
ISC_SHA256_DIGESTLENGTH);
|
|
memset(context->buffer, 0, ISC_SHA256_BLOCK_LENGTH);
|
|
context->bitcount = 0;
|
|
}
|
|
|
|
void
|
|
isc_sha224_invalidate(isc_sha224_t *context) {
|
|
memset(context, 0, sizeof(isc_sha224_t));
|
|
}
|
|
|
|
void
|
|
isc_sha224_update(isc_sha224_t *context, const isc_uint8_t* data, size_t len) {
|
|
isc_sha256_update((isc_sha256_t *)context, data, len);
|
|
}
|
|
|
|
void
|
|
isc_sha224_final(isc_uint8_t digest[], isc_sha224_t *context) {
|
|
isc_uint8_t sha256_digest[ISC_SHA256_DIGESTLENGTH];
|
|
isc_sha256_final(sha256_digest, (isc_sha256_t *)context);
|
|
memcpy(digest, sha256_digest, ISC_SHA224_DIGESTLENGTH);
|
|
memset(sha256_digest, 0, ISC_SHA256_DIGESTLENGTH);
|
|
}
|
|
|
|
/*** SHA-256: *********************************************************/
|
|
void
|
|
isc_sha256_init(isc_sha256_t *context) {
|
|
if (context == (isc_sha256_t *)0) {
|
|
return;
|
|
}
|
|
memcpy(context->state, sha256_initial_hash_value,
|
|
ISC_SHA256_DIGESTLENGTH);
|
|
memset(context->buffer, 0, ISC_SHA256_BLOCK_LENGTH);
|
|
context->bitcount = 0;
|
|
}
|
|
|
|
void
|
|
isc_sha256_invalidate(isc_sha256_t *context) {
|
|
memset(context, 0, sizeof(isc_sha256_t));
|
|
}
|
|
|
|
#ifdef ISC_SHA2_UNROLL_TRANSFORM
|
|
|
|
/* Unrolled SHA-256 round macros: */
|
|
|
|
#if BYTE_ORDER == LITTLE_ENDIAN
|
|
|
|
#define ROUND256_0_TO_15(a,b,c,d,e,f,g,h) \
|
|
REVERSE32(*data++, W256[j]); \
|
|
T1 = (h) + Sigma1_256(e) + Ch((e), (f), (g)) + \
|
|
K256[j] + W256[j]; \
|
|
(d) += T1; \
|
|
(h) = T1 + Sigma0_256(a) + Maj((a), (b), (c)); \
|
|
j++
|
|
|
|
|
|
#else /* BYTE_ORDER == LITTLE_ENDIAN */
|
|
|
|
#define ROUND256_0_TO_15(a,b,c,d,e,f,g,h) \
|
|
T1 = (h) + Sigma1_256(e) + Ch((e), (f), (g)) + \
|
|
K256[j] + (W256[j] = *data++); \
|
|
(d) += T1; \
|
|
(h) = T1 + Sigma0_256(a) + Maj((a), (b), (c)); \
|
|
j++
|
|
|
|
#endif /* BYTE_ORDER == LITTLE_ENDIAN */
|
|
|
|
#define ROUND256(a,b,c,d,e,f,g,h) \
|
|
s0 = W256[(j+1)&0x0f]; \
|
|
s0 = sigma0_256(s0); \
|
|
s1 = W256[(j+14)&0x0f]; \
|
|
s1 = sigma1_256(s1); \
|
|
T1 = (h) + Sigma1_256(e) + Ch((e), (f), (g)) + K256[j] + \
|
|
(W256[j&0x0f] += s1 + W256[(j+9)&0x0f] + s0); \
|
|
(d) += T1; \
|
|
(h) = T1 + Sigma0_256(a) + Maj((a), (b), (c)); \
|
|
j++
|
|
|
|
void isc_sha256_transform(isc_sha256_t *context, const isc_uint32_t* data) {
|
|
isc_uint32_t a, b, c, d, e, f, g, h, s0, s1;
|
|
isc_uint32_t T1, *W256;
|
|
int j;
|
|
|
|
W256 = (isc_uint32_t*)context->buffer;
|
|
|
|
/* Initialize registers with the prev. intermediate value */
|
|
a = context->state[0];
|
|
b = context->state[1];
|
|
c = context->state[2];
|
|
d = context->state[3];
|
|
e = context->state[4];
|
|
f = context->state[5];
|
|
g = context->state[6];
|
|
h = context->state[7];
|
|
|
|
j = 0;
|
|
do {
|
|
/* Rounds 0 to 15 (unrolled): */
|
|
ROUND256_0_TO_15(a,b,c,d,e,f,g,h);
|
|
ROUND256_0_TO_15(h,a,b,c,d,e,f,g);
|
|
ROUND256_0_TO_15(g,h,a,b,c,d,e,f);
|
|
ROUND256_0_TO_15(f,g,h,a,b,c,d,e);
|
|
ROUND256_0_TO_15(e,f,g,h,a,b,c,d);
|
|
ROUND256_0_TO_15(d,e,f,g,h,a,b,c);
|
|
ROUND256_0_TO_15(c,d,e,f,g,h,a,b);
|
|
ROUND256_0_TO_15(b,c,d,e,f,g,h,a);
|
|
} while (j < 16);
|
|
|
|
/* Now for the remaining rounds to 64: */
|
|
do {
|
|
ROUND256(a,b,c,d,e,f,g,h);
|
|
ROUND256(h,a,b,c,d,e,f,g);
|
|
ROUND256(g,h,a,b,c,d,e,f);
|
|
ROUND256(f,g,h,a,b,c,d,e);
|
|
ROUND256(e,f,g,h,a,b,c,d);
|
|
ROUND256(d,e,f,g,h,a,b,c);
|
|
ROUND256(c,d,e,f,g,h,a,b);
|
|
ROUND256(b,c,d,e,f,g,h,a);
|
|
} while (j < 64);
|
|
|
|
/* Compute the current intermediate hash value */
|
|
context->state[0] += a;
|
|
context->state[1] += b;
|
|
context->state[2] += c;
|
|
context->state[3] += d;
|
|
context->state[4] += e;
|
|
context->state[5] += f;
|
|
context->state[6] += g;
|
|
context->state[7] += h;
|
|
|
|
/* Clean up */
|
|
a = b = c = d = e = f = g = h = T1 = 0;
|
|
/* Avoid compiler warnings */
|
|
POST(a); POST(b); POST(c); POST(d); POST(e); POST(f);
|
|
POST(g); POST(h); POST(T1);
|
|
}
|
|
|
|
#else /* ISC_SHA2_UNROLL_TRANSFORM */
|
|
|
|
void
|
|
isc_sha256_transform(isc_sha256_t *context, const isc_uint32_t* data) {
|
|
isc_uint32_t a, b, c, d, e, f, g, h, s0, s1;
|
|
isc_uint32_t T1, T2, *W256;
|
|
int j;
|
|
|
|
W256 = (isc_uint32_t*)context->buffer;
|
|
|
|
/* Initialize registers with the prev. intermediate value */
|
|
a = context->state[0];
|
|
b = context->state[1];
|
|
c = context->state[2];
|
|
d = context->state[3];
|
|
e = context->state[4];
|
|
f = context->state[5];
|
|
g = context->state[6];
|
|
h = context->state[7];
|
|
|
|
j = 0;
|
|
do {
|
|
#if BYTE_ORDER == LITTLE_ENDIAN
|
|
/* Copy data while converting to host byte order */
|
|
REVERSE32(*data++,W256[j]);
|
|
/* Apply the SHA-256 compression function to update a..h */
|
|
T1 = h + Sigma1_256(e) + Ch(e, f, g) + K256[j] + W256[j];
|
|
#else /* BYTE_ORDER == LITTLE_ENDIAN */
|
|
/* Apply the SHA-256 compression function to update a..h with copy */
|
|
T1 = h + Sigma1_256(e) + Ch(e, f, g) + K256[j] + (W256[j] = *data++);
|
|
#endif /* BYTE_ORDER == LITTLE_ENDIAN */
|
|
T2 = Sigma0_256(a) + Maj(a, b, c);
|
|
h = g;
|
|
g = f;
|
|
f = e;
|
|
e = d + T1;
|
|
d = c;
|
|
c = b;
|
|
b = a;
|
|
a = T1 + T2;
|
|
|
|
j++;
|
|
} while (j < 16);
|
|
|
|
do {
|
|
/* Part of the message block expansion: */
|
|
s0 = W256[(j+1)&0x0f];
|
|
s0 = sigma0_256(s0);
|
|
s1 = W256[(j+14)&0x0f];
|
|
s1 = sigma1_256(s1);
|
|
|
|
/* Apply the SHA-256 compression function to update a..h */
|
|
T1 = h + Sigma1_256(e) + Ch(e, f, g) + K256[j] +
|
|
(W256[j&0x0f] += s1 + W256[(j+9)&0x0f] + s0);
|
|
T2 = Sigma0_256(a) + Maj(a, b, c);
|
|
h = g;
|
|
g = f;
|
|
f = e;
|
|
e = d + T1;
|
|
d = c;
|
|
c = b;
|
|
b = a;
|
|
a = T1 + T2;
|
|
|
|
j++;
|
|
} while (j < 64);
|
|
|
|
/* Compute the current intermediate hash value */
|
|
context->state[0] += a;
|
|
context->state[1] += b;
|
|
context->state[2] += c;
|
|
context->state[3] += d;
|
|
context->state[4] += e;
|
|
context->state[5] += f;
|
|
context->state[6] += g;
|
|
context->state[7] += h;
|
|
|
|
/* Clean up */
|
|
a = b = c = d = e = f = g = h = T1 = T2 = 0;
|
|
/* Avoid compiler warnings */
|
|
POST(a); POST(b); POST(c); POST(d); POST(e); POST(f);
|
|
POST(g); POST(h); POST(T1); POST(T2);
|
|
}
|
|
|
|
#endif /* ISC_SHA2_UNROLL_TRANSFORM */
|
|
|
|
void
|
|
isc_sha256_update(isc_sha256_t *context, const isc_uint8_t *data, size_t len) {
|
|
unsigned int freespace, usedspace;
|
|
|
|
if (len == 0U) {
|
|
/* Calling with no data is valid - we do nothing */
|
|
return;
|
|
}
|
|
|
|
/* Sanity check: */
|
|
REQUIRE(context != (isc_sha256_t *)0 && data != (isc_uint8_t*)0);
|
|
|
|
usedspace = (unsigned int)((context->bitcount >> 3) %
|
|
ISC_SHA256_BLOCK_LENGTH);
|
|
if (usedspace > 0) {
|
|
/* Calculate how much free space is available in the buffer */
|
|
freespace = ISC_SHA256_BLOCK_LENGTH - usedspace;
|
|
|
|
if (len >= freespace) {
|
|
/* Fill the buffer completely and process it */
|
|
memcpy(&context->buffer[usedspace], data, freespace);
|
|
context->bitcount += freespace << 3;
|
|
len -= freespace;
|
|
data += freespace;
|
|
isc_sha256_transform(context,
|
|
(isc_uint32_t*)context->buffer);
|
|
} else {
|
|
/* The buffer is not yet full */
|
|
memcpy(&context->buffer[usedspace], data, len);
|
|
context->bitcount += len << 3;
|
|
/* Clean up: */
|
|
usedspace = freespace = 0;
|
|
/* Avoid compiler warnings: */
|
|
POST(usedspace); POST(freespace);
|
|
return;
|
|
}
|
|
}
|
|
while (len >= ISC_SHA256_BLOCK_LENGTH) {
|
|
/* Process as many complete blocks as we can */
|
|
memcpy(context->buffer, data, ISC_SHA256_BLOCK_LENGTH);
|
|
isc_sha256_transform(context, (isc_uint32_t*)context->buffer);
|
|
context->bitcount += ISC_SHA256_BLOCK_LENGTH << 3;
|
|
len -= ISC_SHA256_BLOCK_LENGTH;
|
|
data += ISC_SHA256_BLOCK_LENGTH;
|
|
}
|
|
if (len > 0U) {
|
|
/* There's left-overs, so save 'em */
|
|
memcpy(context->buffer, data, len);
|
|
context->bitcount += len << 3;
|
|
}
|
|
/* Clean up: */
|
|
usedspace = freespace = 0;
|
|
/* Avoid compiler warnings: */
|
|
POST(usedspace); POST(freespace);
|
|
}
|
|
|
|
void
|
|
isc_sha256_final(isc_uint8_t digest[], isc_sha256_t *context) {
|
|
isc_uint32_t *d = (isc_uint32_t*)digest;
|
|
unsigned int usedspace;
|
|
|
|
/* Sanity check: */
|
|
REQUIRE(context != (isc_sha256_t *)0);
|
|
|
|
/* If no digest buffer is passed, we don't bother doing this: */
|
|
if (digest != (isc_uint8_t*)0) {
|
|
usedspace = (unsigned int)((context->bitcount >> 3) %
|
|
ISC_SHA256_BLOCK_LENGTH);
|
|
#if BYTE_ORDER == LITTLE_ENDIAN
|
|
/* Convert FROM host byte order */
|
|
REVERSE64(context->bitcount,context->bitcount);
|
|
#endif
|
|
if (usedspace > 0) {
|
|
/* Begin padding with a 1 bit: */
|
|
context->buffer[usedspace++] = 0x80;
|
|
|
|
if (usedspace <= ISC_SHA256_SHORT_BLOCK_LENGTH) {
|
|
/* Set-up for the last transform: */
|
|
memset(&context->buffer[usedspace], 0,
|
|
ISC_SHA256_SHORT_BLOCK_LENGTH - usedspace);
|
|
} else {
|
|
if (usedspace < ISC_SHA256_BLOCK_LENGTH) {
|
|
memset(&context->buffer[usedspace], 0,
|
|
ISC_SHA256_BLOCK_LENGTH -
|
|
usedspace);
|
|
}
|
|
/* Do second-to-last transform: */
|
|
isc_sha256_transform(context,
|
|
(isc_uint32_t*)context->buffer);
|
|
|
|
/* And set-up for the last transform: */
|
|
memset(context->buffer, 0,
|
|
ISC_SHA256_SHORT_BLOCK_LENGTH);
|
|
}
|
|
} else {
|
|
/* Set-up for the last transform: */
|
|
memset(context->buffer, 0, ISC_SHA256_SHORT_BLOCK_LENGTH);
|
|
|
|
/* Begin padding with a 1 bit: */
|
|
*context->buffer = 0x80;
|
|
}
|
|
/* Set the bit count: */
|
|
*(isc_uint64_t*)&context->buffer[ISC_SHA256_SHORT_BLOCK_LENGTH] = context->bitcount;
|
|
|
|
/* Final transform: */
|
|
isc_sha256_transform(context, (isc_uint32_t*)context->buffer);
|
|
|
|
#if BYTE_ORDER == LITTLE_ENDIAN
|
|
{
|
|
/* Convert TO host byte order */
|
|
int j;
|
|
for (j = 0; j < 8; j++) {
|
|
REVERSE32(context->state[j],context->state[j]);
|
|
*d++ = context->state[j];
|
|
}
|
|
}
|
|
#else
|
|
memcpy(d, context->state, ISC_SHA256_DIGESTLENGTH);
|
|
#endif
|
|
}
|
|
|
|
/* Clean up state data: */
|
|
memset(context, 0, sizeof(*context));
|
|
usedspace = 0;
|
|
POST(usedspace);
|
|
}
|
|
|
|
/*** SHA-512: *********************************************************/
|
|
void
|
|
isc_sha512_init(isc_sha512_t *context) {
|
|
if (context == (isc_sha512_t *)0) {
|
|
return;
|
|
}
|
|
memcpy(context->state, sha512_initial_hash_value,
|
|
ISC_SHA512_DIGESTLENGTH);
|
|
memset(context->buffer, 0, ISC_SHA512_BLOCK_LENGTH);
|
|
context->bitcount[0] = context->bitcount[1] = 0;
|
|
}
|
|
|
|
void
|
|
isc_sha512_invalidate(isc_sha512_t *context) {
|
|
memset(context, 0, sizeof(isc_sha512_t));
|
|
}
|
|
|
|
#ifdef ISC_SHA2_UNROLL_TRANSFORM
|
|
|
|
/* Unrolled SHA-512 round macros: */
|
|
#if BYTE_ORDER == LITTLE_ENDIAN
|
|
|
|
#define ROUND512_0_TO_15(a,b,c,d,e,f,g,h) \
|
|
REVERSE64(*data++, W512[j]); \
|
|
T1 = (h) + Sigma1_512(e) + Ch((e), (f), (g)) + \
|
|
K512[j] + W512[j]; \
|
|
(d) += T1, \
|
|
(h) = T1 + Sigma0_512(a) + Maj((a), (b), (c)), \
|
|
j++
|
|
|
|
|
|
#else /* BYTE_ORDER == LITTLE_ENDIAN */
|
|
|
|
#define ROUND512_0_TO_15(a,b,c,d,e,f,g,h) \
|
|
T1 = (h) + Sigma1_512(e) + Ch((e), (f), (g)) + \
|
|
K512[j] + (W512[j] = *data++); \
|
|
(d) += T1; \
|
|
(h) = T1 + Sigma0_512(a) + Maj((a), (b), (c)); \
|
|
j++
|
|
|
|
#endif /* BYTE_ORDER == LITTLE_ENDIAN */
|
|
|
|
#define ROUND512(a,b,c,d,e,f,g,h) \
|
|
s0 = W512[(j+1)&0x0f]; \
|
|
s0 = sigma0_512(s0); \
|
|
s1 = W512[(j+14)&0x0f]; \
|
|
s1 = sigma1_512(s1); \
|
|
T1 = (h) + Sigma1_512(e) + Ch((e), (f), (g)) + K512[j] + \
|
|
(W512[j&0x0f] += s1 + W512[(j+9)&0x0f] + s0); \
|
|
(d) += T1; \
|
|
(h) = T1 + Sigma0_512(a) + Maj((a), (b), (c)); \
|
|
j++
|
|
|
|
void isc_sha512_transform(isc_sha512_t *context, const isc_uint64_t* data) {
|
|
isc_uint64_t a, b, c, d, e, f, g, h, s0, s1;
|
|
isc_uint64_t T1, *W512 = (isc_uint64_t*)context->buffer;
|
|
int j;
|
|
|
|
/* Initialize registers with the prev. intermediate value */
|
|
a = context->state[0];
|
|
b = context->state[1];
|
|
c = context->state[2];
|
|
d = context->state[3];
|
|
e = context->state[4];
|
|
f = context->state[5];
|
|
g = context->state[6];
|
|
h = context->state[7];
|
|
|
|
j = 0;
|
|
do {
|
|
ROUND512_0_TO_15(a,b,c,d,e,f,g,h);
|
|
ROUND512_0_TO_15(h,a,b,c,d,e,f,g);
|
|
ROUND512_0_TO_15(g,h,a,b,c,d,e,f);
|
|
ROUND512_0_TO_15(f,g,h,a,b,c,d,e);
|
|
ROUND512_0_TO_15(e,f,g,h,a,b,c,d);
|
|
ROUND512_0_TO_15(d,e,f,g,h,a,b,c);
|
|
ROUND512_0_TO_15(c,d,e,f,g,h,a,b);
|
|
ROUND512_0_TO_15(b,c,d,e,f,g,h,a);
|
|
} while (j < 16);
|
|
|
|
/* Now for the remaining rounds up to 79: */
|
|
do {
|
|
ROUND512(a,b,c,d,e,f,g,h);
|
|
ROUND512(h,a,b,c,d,e,f,g);
|
|
ROUND512(g,h,a,b,c,d,e,f);
|
|
ROUND512(f,g,h,a,b,c,d,e);
|
|
ROUND512(e,f,g,h,a,b,c,d);
|
|
ROUND512(d,e,f,g,h,a,b,c);
|
|
ROUND512(c,d,e,f,g,h,a,b);
|
|
ROUND512(b,c,d,e,f,g,h,a);
|
|
} while (j < 80);
|
|
|
|
/* Compute the current intermediate hash value */
|
|
context->state[0] += a;
|
|
context->state[1] += b;
|
|
context->state[2] += c;
|
|
context->state[3] += d;
|
|
context->state[4] += e;
|
|
context->state[5] += f;
|
|
context->state[6] += g;
|
|
context->state[7] += h;
|
|
|
|
/* Clean up */
|
|
a = b = c = d = e = f = g = h = T1 = 0;
|
|
/* Avoid compiler warnings */
|
|
POST(a); POST(b); POST(c); POST(d); POST(e); POST(f);
|
|
POST(g); POST(h); POST(T1);
|
|
}
|
|
|
|
#else /* ISC_SHA2_UNROLL_TRANSFORM */
|
|
|
|
void
|
|
isc_sha512_transform(isc_sha512_t *context, const isc_uint64_t* data) {
|
|
isc_uint64_t a, b, c, d, e, f, g, h, s0, s1;
|
|
isc_uint64_t T1, T2, *W512 = (isc_uint64_t*)context->buffer;
|
|
int j;
|
|
|
|
/* Initialize registers with the prev. intermediate value */
|
|
a = context->state[0];
|
|
b = context->state[1];
|
|
c = context->state[2];
|
|
d = context->state[3];
|
|
e = context->state[4];
|
|
f = context->state[5];
|
|
g = context->state[6];
|
|
h = context->state[7];
|
|
|
|
j = 0;
|
|
do {
|
|
#if BYTE_ORDER == LITTLE_ENDIAN
|
|
/* Convert TO host byte order */
|
|
REVERSE64(*data++, W512[j]);
|
|
/* Apply the SHA-512 compression function to update a..h */
|
|
T1 = h + Sigma1_512(e) + Ch(e, f, g) + K512[j] + W512[j];
|
|
#else /* BYTE_ORDER == LITTLE_ENDIAN */
|
|
/* Apply the SHA-512 compression function to update a..h with copy */
|
|
T1 = h + Sigma1_512(e) + Ch(e, f, g) + K512[j] + (W512[j] = *data++);
|
|
#endif /* BYTE_ORDER == LITTLE_ENDIAN */
|
|
T2 = Sigma0_512(a) + Maj(a, b, c);
|
|
h = g;
|
|
g = f;
|
|
f = e;
|
|
e = d + T1;
|
|
d = c;
|
|
c = b;
|
|
b = a;
|
|
a = T1 + T2;
|
|
|
|
j++;
|
|
} while (j < 16);
|
|
|
|
do {
|
|
/* Part of the message block expansion: */
|
|
s0 = W512[(j+1)&0x0f];
|
|
s0 = sigma0_512(s0);
|
|
s1 = W512[(j+14)&0x0f];
|
|
s1 = sigma1_512(s1);
|
|
|
|
/* Apply the SHA-512 compression function to update a..h */
|
|
T1 = h + Sigma1_512(e) + Ch(e, f, g) + K512[j] +
|
|
(W512[j&0x0f] += s1 + W512[(j+9)&0x0f] + s0);
|
|
T2 = Sigma0_512(a) + Maj(a, b, c);
|
|
h = g;
|
|
g = f;
|
|
f = e;
|
|
e = d + T1;
|
|
d = c;
|
|
c = b;
|
|
b = a;
|
|
a = T1 + T2;
|
|
|
|
j++;
|
|
} while (j < 80);
|
|
|
|
/* Compute the current intermediate hash value */
|
|
context->state[0] += a;
|
|
context->state[1] += b;
|
|
context->state[2] += c;
|
|
context->state[3] += d;
|
|
context->state[4] += e;
|
|
context->state[5] += f;
|
|
context->state[6] += g;
|
|
context->state[7] += h;
|
|
|
|
/* Clean up */
|
|
a = b = c = d = e = f = g = h = T1 = T2 = 0;
|
|
/* Avoid compiler warnings */
|
|
POST(a); POST(b); POST(c); POST(d); POST(e); POST(f);
|
|
POST(g); POST(h); POST(T1); POST(T2);
|
|
}
|
|
|
|
#endif /* ISC_SHA2_UNROLL_TRANSFORM */
|
|
|
|
void isc_sha512_update(isc_sha512_t *context, const isc_uint8_t *data, size_t len) {
|
|
unsigned int freespace, usedspace;
|
|
|
|
if (len == 0U) {
|
|
/* Calling with no data is valid - we do nothing */
|
|
return;
|
|
}
|
|
|
|
/* Sanity check: */
|
|
REQUIRE(context != (isc_sha512_t *)0 && data != (isc_uint8_t*)0);
|
|
|
|
usedspace = (unsigned int)((context->bitcount[0] >> 3) %
|
|
ISC_SHA512_BLOCK_LENGTH);
|
|
if (usedspace > 0) {
|
|
/* Calculate how much free space is available in the buffer */
|
|
freespace = ISC_SHA512_BLOCK_LENGTH - usedspace;
|
|
|
|
if (len >= freespace) {
|
|
/* Fill the buffer completely and process it */
|
|
memcpy(&context->buffer[usedspace], data, freespace);
|
|
ADDINC128(context->bitcount, freespace << 3);
|
|
len -= freespace;
|
|
data += freespace;
|
|
isc_sha512_transform(context,
|
|
(isc_uint64_t*)context->buffer);
|
|
} else {
|
|
/* The buffer is not yet full */
|
|
memcpy(&context->buffer[usedspace], data, len);
|
|
ADDINC128(context->bitcount, len << 3);
|
|
/* Clean up: */
|
|
usedspace = freespace = 0;
|
|
/* Avoid compiler warnings: */
|
|
POST(usedspace); POST(freespace);
|
|
return;
|
|
}
|
|
}
|
|
while (len >= ISC_SHA512_BLOCK_LENGTH) {
|
|
/* Process as many complete blocks as we can */
|
|
memcpy(context->buffer, data, ISC_SHA512_BLOCK_LENGTH);
|
|
isc_sha512_transform(context, (isc_uint64_t*)context->buffer);
|
|
ADDINC128(context->bitcount, ISC_SHA512_BLOCK_LENGTH << 3);
|
|
len -= ISC_SHA512_BLOCK_LENGTH;
|
|
data += ISC_SHA512_BLOCK_LENGTH;
|
|
}
|
|
if (len > 0U) {
|
|
/* There's left-overs, so save 'em */
|
|
memcpy(context->buffer, data, len);
|
|
ADDINC128(context->bitcount, len << 3);
|
|
}
|
|
/* Clean up: */
|
|
usedspace = freespace = 0;
|
|
/* Avoid compiler warnings: */
|
|
POST(usedspace); POST(freespace);
|
|
}
|
|
|
|
void isc_sha512_last(isc_sha512_t *context) {
|
|
unsigned int usedspace;
|
|
|
|
usedspace = (unsigned int)((context->bitcount[0] >> 3) %
|
|
ISC_SHA512_BLOCK_LENGTH);
|
|
#if BYTE_ORDER == LITTLE_ENDIAN
|
|
/* Convert FROM host byte order */
|
|
REVERSE64(context->bitcount[0],context->bitcount[0]);
|
|
REVERSE64(context->bitcount[1],context->bitcount[1]);
|
|
#endif
|
|
if (usedspace > 0) {
|
|
/* Begin padding with a 1 bit: */
|
|
context->buffer[usedspace++] = 0x80;
|
|
|
|
if (usedspace <= ISC_SHA512_SHORT_BLOCK_LENGTH) {
|
|
/* Set-up for the last transform: */
|
|
memset(&context->buffer[usedspace], 0,
|
|
ISC_SHA512_SHORT_BLOCK_LENGTH - usedspace);
|
|
} else {
|
|
if (usedspace < ISC_SHA512_BLOCK_LENGTH) {
|
|
memset(&context->buffer[usedspace], 0,
|
|
ISC_SHA512_BLOCK_LENGTH - usedspace);
|
|
}
|
|
/* Do second-to-last transform: */
|
|
isc_sha512_transform(context,
|
|
(isc_uint64_t*)context->buffer);
|
|
|
|
/* And set-up for the last transform: */
|
|
memset(context->buffer, 0, ISC_SHA512_BLOCK_LENGTH - 2);
|
|
}
|
|
} else {
|
|
/* Prepare for final transform: */
|
|
memset(context->buffer, 0, ISC_SHA512_SHORT_BLOCK_LENGTH);
|
|
|
|
/* Begin padding with a 1 bit: */
|
|
*context->buffer = 0x80;
|
|
}
|
|
/* Store the length of input data (in bits): */
|
|
*(isc_uint64_t*)&context->buffer[ISC_SHA512_SHORT_BLOCK_LENGTH] = context->bitcount[1];
|
|
*(isc_uint64_t*)&context->buffer[ISC_SHA512_SHORT_BLOCK_LENGTH+8] = context->bitcount[0];
|
|
|
|
/* Final transform: */
|
|
isc_sha512_transform(context, (isc_uint64_t*)context->buffer);
|
|
}
|
|
|
|
void isc_sha512_final(isc_uint8_t digest[], isc_sha512_t *context) {
|
|
isc_uint64_t *d = (isc_uint64_t*)digest;
|
|
|
|
/* Sanity check: */
|
|
REQUIRE(context != (isc_sha512_t *)0);
|
|
|
|
/* If no digest buffer is passed, we don't bother doing this: */
|
|
if (digest != (isc_uint8_t*)0) {
|
|
isc_sha512_last(context);
|
|
|
|
/* Save the hash data for output: */
|
|
#if BYTE_ORDER == LITTLE_ENDIAN
|
|
{
|
|
/* Convert TO host byte order */
|
|
int j;
|
|
for (j = 0; j < 8; j++) {
|
|
REVERSE64(context->state[j],context->state[j]);
|
|
*d++ = context->state[j];
|
|
}
|
|
}
|
|
#else
|
|
memcpy(d, context->state, ISC_SHA512_DIGESTLENGTH);
|
|
#endif
|
|
}
|
|
|
|
/* Zero out state data */
|
|
memset(context, 0, sizeof(*context));
|
|
}
|
|
|
|
|
|
/*** SHA-384: *********************************************************/
|
|
void
|
|
isc_sha384_init(isc_sha384_t *context) {
|
|
if (context == (isc_sha384_t *)0) {
|
|
return;
|
|
}
|
|
memcpy(context->state, sha384_initial_hash_value,
|
|
ISC_SHA512_DIGESTLENGTH);
|
|
memset(context->buffer, 0, ISC_SHA384_BLOCK_LENGTH);
|
|
context->bitcount[0] = context->bitcount[1] = 0;
|
|
}
|
|
|
|
void
|
|
isc_sha384_invalidate(isc_sha384_t *context) {
|
|
memset(context, 0, sizeof(isc_sha384_t));
|
|
}
|
|
|
|
void
|
|
isc_sha384_update(isc_sha384_t *context, const isc_uint8_t* data, size_t len) {
|
|
isc_sha512_update((isc_sha512_t *)context, data, len);
|
|
}
|
|
|
|
void
|
|
isc_sha384_final(isc_uint8_t digest[], isc_sha384_t *context) {
|
|
isc_uint64_t *d = (isc_uint64_t*)digest;
|
|
|
|
/* Sanity check: */
|
|
REQUIRE(context != (isc_sha384_t *)0);
|
|
|
|
/* If no digest buffer is passed, we don't bother doing this: */
|
|
if (digest != (isc_uint8_t*)0) {
|
|
isc_sha512_last((isc_sha512_t *)context);
|
|
|
|
/* Save the hash data for output: */
|
|
#if BYTE_ORDER == LITTLE_ENDIAN
|
|
{
|
|
/* Convert TO host byte order */
|
|
int j;
|
|
for (j = 0; j < 6; j++) {
|
|
REVERSE64(context->state[j],context->state[j]);
|
|
*d++ = context->state[j];
|
|
}
|
|
}
|
|
#else
|
|
memcpy(d, context->state, ISC_SHA384_DIGESTLENGTH);
|
|
#endif
|
|
}
|
|
|
|
/* Zero out state data */
|
|
memset(context, 0, sizeof(*context));
|
|
}
|
|
#endif /* !ISC_PLATFORM_OPENSSLHASH */
|
|
|
|
/*
|
|
* Constant used by SHA256/384/512_End() functions for converting the
|
|
* digest to a readable hexadecimal character string:
|
|
*/
|
|
static const char *sha2_hex_digits = "0123456789abcdef";
|
|
|
|
char *
|
|
isc_sha224_end(isc_sha224_t *context, char buffer[]) {
|
|
isc_uint8_t digest[ISC_SHA224_DIGESTLENGTH], *d = digest;
|
|
unsigned int i;
|
|
|
|
/* Sanity check: */
|
|
REQUIRE(context != (isc_sha224_t *)0);
|
|
|
|
if (buffer != (char*)0) {
|
|
isc_sha224_final(digest, context);
|
|
|
|
for (i = 0; i < ISC_SHA224_DIGESTLENGTH; i++) {
|
|
*buffer++ = sha2_hex_digits[(*d & 0xf0) >> 4];
|
|
*buffer++ = sha2_hex_digits[*d & 0x0f];
|
|
d++;
|
|
}
|
|
*buffer = (char)0;
|
|
} else {
|
|
#ifdef ISC_PLATFORM_OPENSSLHASH
|
|
EVP_MD_CTX_cleanup(context);
|
|
#else
|
|
memset(context, 0, sizeof(*context));
|
|
#endif
|
|
}
|
|
memset(digest, 0, ISC_SHA224_DIGESTLENGTH);
|
|
return buffer;
|
|
}
|
|
|
|
char *
|
|
isc_sha224_data(const isc_uint8_t *data, size_t len,
|
|
char digest[ISC_SHA224_DIGESTSTRINGLENGTH])
|
|
{
|
|
isc_sha224_t context;
|
|
|
|
isc_sha224_init(&context);
|
|
isc_sha224_update(&context, data, len);
|
|
return (isc_sha224_end(&context, digest));
|
|
}
|
|
|
|
char *
|
|
isc_sha256_end(isc_sha256_t *context, char buffer[]) {
|
|
isc_uint8_t digest[ISC_SHA256_DIGESTLENGTH], *d = digest;
|
|
unsigned int i;
|
|
|
|
/* Sanity check: */
|
|
REQUIRE(context != (isc_sha256_t *)0);
|
|
|
|
if (buffer != (char*)0) {
|
|
isc_sha256_final(digest, context);
|
|
|
|
for (i = 0; i < ISC_SHA256_DIGESTLENGTH; i++) {
|
|
*buffer++ = sha2_hex_digits[(*d & 0xf0) >> 4];
|
|
*buffer++ = sha2_hex_digits[*d & 0x0f];
|
|
d++;
|
|
}
|
|
*buffer = (char)0;
|
|
} else {
|
|
#ifdef ISC_PLATFORM_OPENSSLHASH
|
|
EVP_MD_CTX_cleanup(context);
|
|
#else
|
|
memset(context, 0, sizeof(*context));
|
|
#endif
|
|
}
|
|
memset(digest, 0, ISC_SHA256_DIGESTLENGTH);
|
|
return buffer;
|
|
}
|
|
|
|
char *
|
|
isc_sha256_data(const isc_uint8_t* data, size_t len,
|
|
char digest[ISC_SHA256_DIGESTSTRINGLENGTH])
|
|
{
|
|
isc_sha256_t context;
|
|
|
|
isc_sha256_init(&context);
|
|
isc_sha256_update(&context, data, len);
|
|
return (isc_sha256_end(&context, digest));
|
|
}
|
|
|
|
char *
|
|
isc_sha512_end(isc_sha512_t *context, char buffer[]) {
|
|
isc_uint8_t digest[ISC_SHA512_DIGESTLENGTH], *d = digest;
|
|
unsigned int i;
|
|
|
|
/* Sanity check: */
|
|
REQUIRE(context != (isc_sha512_t *)0);
|
|
|
|
if (buffer != (char*)0) {
|
|
isc_sha512_final(digest, context);
|
|
|
|
for (i = 0; i < ISC_SHA512_DIGESTLENGTH; i++) {
|
|
*buffer++ = sha2_hex_digits[(*d & 0xf0) >> 4];
|
|
*buffer++ = sha2_hex_digits[*d & 0x0f];
|
|
d++;
|
|
}
|
|
*buffer = (char)0;
|
|
} else {
|
|
#ifdef ISC_PLATFORM_OPENSSLHASH
|
|
EVP_MD_CTX_cleanup(context);
|
|
#else
|
|
memset(context, 0, sizeof(*context));
|
|
#endif
|
|
}
|
|
memset(digest, 0, ISC_SHA512_DIGESTLENGTH);
|
|
return buffer;
|
|
}
|
|
|
|
char *
|
|
isc_sha512_data(const isc_uint8_t *data, size_t len,
|
|
char digest[ISC_SHA512_DIGESTSTRINGLENGTH])
|
|
{
|
|
isc_sha512_t context;
|
|
|
|
isc_sha512_init(&context);
|
|
isc_sha512_update(&context, data, len);
|
|
return (isc_sha512_end(&context, digest));
|
|
}
|
|
|
|
char *
|
|
isc_sha384_end(isc_sha384_t *context, char buffer[]) {
|
|
isc_uint8_t digest[ISC_SHA384_DIGESTLENGTH], *d = digest;
|
|
unsigned int i;
|
|
|
|
/* Sanity check: */
|
|
REQUIRE(context != (isc_sha384_t *)0);
|
|
|
|
if (buffer != (char*)0) {
|
|
isc_sha384_final(digest, context);
|
|
|
|
for (i = 0; i < ISC_SHA384_DIGESTLENGTH; i++) {
|
|
*buffer++ = sha2_hex_digits[(*d & 0xf0) >> 4];
|
|
*buffer++ = sha2_hex_digits[*d & 0x0f];
|
|
d++;
|
|
}
|
|
*buffer = (char)0;
|
|
} else {
|
|
#ifdef ISC_PLATFORM_OPENSSLHASH
|
|
EVP_MD_CTX_cleanup(context);
|
|
#else
|
|
memset(context, 0, sizeof(*context));
|
|
#endif
|
|
}
|
|
memset(digest, 0, ISC_SHA384_DIGESTLENGTH);
|
|
return buffer;
|
|
}
|
|
|
|
char *
|
|
isc_sha384_data(const isc_uint8_t *data, size_t len,
|
|
char digest[ISC_SHA384_DIGESTSTRINGLENGTH])
|
|
{
|
|
isc_sha384_t context;
|
|
|
|
isc_sha384_init(&context);
|
|
isc_sha384_update(&context, data, len);
|
|
return (isc_sha384_end(&context, digest));
|
|
}
|