4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
22 * Copyright 2009 Sun Microsystems, Inc. All rights reserved.
23 * Use is subject to license terms.
26 * Copyright 2013 Saso Kiselkov. All rights reserved.
28 #include <sys/zfs_context.h>
31 #include <crypto/sha2/sha256.h>
32 #include <crypto/sha2/sha512t.h>
40 zio_checksum_SHA256(const void *buf, uint64_t size,
41 const void *ctx_template, zio_cksum_t *zcp)
47 SHA256_Update(&ctx, buf, size);
48 SHA256_Final((unsigned char *)&tmp, &ctx);
51 * A prior implementation of this function had a
52 * private SHA256 implementation always wrote things out in
53 * Big Endian and there wasn't a byteswap variant of it.
54 * To preseve on disk compatibility we need to force that
57 zcp->zc_word[0] = BE_64(tmp.zc_word[0]);
58 zcp->zc_word[1] = BE_64(tmp.zc_word[1]);
59 zcp->zc_word[2] = BE_64(tmp.zc_word[2]);
60 zcp->zc_word[3] = BE_64(tmp.zc_word[3]);
65 zio_checksum_SHA512_native(const void *buf, uint64_t size,
66 const void *ctx_template, zio_cksum_t *zcp)
70 SHA512_256_Init(&ctx);
71 SHA512_256_Update(&ctx, buf, size);
72 SHA512_256_Final((unsigned char *)zcp, &ctx);
77 zio_checksum_SHA512_byteswap(const void *buf, uint64_t size,
78 const void *ctx_template, zio_cksum_t *zcp)
82 zio_checksum_SHA512_native(buf, size, ctx_template, &tmp);
83 zcp->zc_word[0] = BSWAP_64(tmp.zc_word[0]);
84 zcp->zc_word[1] = BSWAP_64(tmp.zc_word[1]);
85 zcp->zc_word[2] = BSWAP_64(tmp.zc_word[2]);
86 zcp->zc_word[3] = BSWAP_64(tmp.zc_word[3]);