VirtualBox

source: vbox/trunk/src/VBox/Runtime/common/checksum/openssl-sha256.cpp@ 81106

Last change on this file since 81106 was 76553, checked in by vboxsync, 6 years ago

scm --update-copyright-year

  • Property svn:eol-style set to native
  • Property svn:keywords set to Author Date Id Revision
File size: 4.1 KB
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1/* $Id: openssl-sha256.cpp 76553 2019-01-01 01:45:53Z vboxsync $ */
2/** @file
3 * IPRT - SHA-256 hash functions.
4 */
5
6/*
7 * Copyright (C) 2009-2019 Oracle Corporation
8 *
9 * This file is part of VirtualBox Open Source Edition (OSE), as
10 * available from http://www.virtualbox.org. This file is free software;
11 * you can redistribute it and/or modify it under the terms of the GNU
12 * General Public License (GPL) as published by the Free Software
13 * Foundation, in version 2 as it comes in the "COPYING" file of the
14 * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15 * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16 *
17 * The contents of this file may alternatively be used under the terms
18 * of the Common Development and Distribution License Version 1.0
19 * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
20 * VirtualBox OSE distribution, in which case the provisions of the
21 * CDDL are applicable instead of those of the GPL.
22 *
23 * You may elect to license modified versions of this file under the
24 * terms and conditions of either the GPL or the CDDL or both.
25 */
26
27
28/*********************************************************************************************************************************
29* Header Files *
30*********************************************************************************************************************************/
31#include "internal/iprt.h"
32
33#include <openssl/sha.h>
34
35#define RT_SHA256_PRIVATE_CONTEXT
36#include <iprt/sha.h>
37
38#include <iprt/assert.h>
39#include <iprt/string.h>
40
41
42AssertCompile(RT_SIZEOFMEMB(RTSHA256CONTEXT, abPadding) >= RT_SIZEOFMEMB(RTSHA256CONTEXT, Private));
43
44
45RTDECL(void) RTSha256(const void *pvBuf, size_t cbBuf, uint8_t pabDigest[RTSHA256_HASH_SIZE])
46{
47 RTSHA256CONTEXT Ctx;
48 RTSha256Init(&Ctx);
49 RTSha256Update(&Ctx, pvBuf, cbBuf);
50 RTSha256Final(&Ctx, pabDigest);
51}
52RT_EXPORT_SYMBOL(RTSha256);
53
54
55RTDECL(bool) RTSha256Check(const void *pvBuf, size_t cbBuf, uint8_t const pabDigest[RTSHA256_HASH_SIZE])
56{
57 RTSHA256CONTEXT Ctx;
58 RTSha256Init(&Ctx);
59 RTSha256Update(&Ctx, pvBuf, cbBuf);
60 uint8_t abActualDigest[RTSHA256_HASH_SIZE];
61 RTSha256Final(&Ctx, abActualDigest);
62 bool fRet = memcmp(pabDigest, abActualDigest, RTSHA256_HASH_SIZE) == 0;
63 RT_ZERO(abActualDigest);
64 return fRet;
65}
66RT_EXPORT_SYMBOL(RTSha256Check);
67
68
69RTDECL(void) RTSha256Init(PRTSHA256CONTEXT pCtx)
70{
71 SHA256_Init(&pCtx->Private);
72}
73RT_EXPORT_SYMBOL(RTSha256Init);
74
75
76RTDECL(void) RTSha256Update(PRTSHA256CONTEXT pCtx, const void *pvBuf, size_t cbBuf)
77{
78 SHA256_Update(&pCtx->Private, pvBuf, cbBuf);
79}
80RT_EXPORT_SYMBOL(RTSha256Update);
81
82
83RTDECL(void) RTSha256Final(PRTSHA256CONTEXT pCtx, uint8_t pabDigest[32])
84{
85 SHA256_Final((unsigned char *)&pabDigest[0], &pCtx->Private);
86}
87RT_EXPORT_SYMBOL(RTSha256Final);
88
89
90/*
91 * We have to expose the same API as alt-sha256.cpp, so the SHA-224
92 * implementation also lives here. (SHA-224 is just a truncated SHA-256 with
93 * different initial values.)
94 */
95RTDECL(void) RTSha224(const void *pvBuf, size_t cbBuf, uint8_t pabDigest[RTSHA224_HASH_SIZE])
96{
97 RTSHA224CONTEXT Ctx;
98 RTSha224Init(&Ctx);
99 RTSha224Update(&Ctx, pvBuf, cbBuf);
100 RTSha224Final(&Ctx, pabDigest);
101}
102RT_EXPORT_SYMBOL(RTSha224);
103
104
105RTDECL(bool) RTSha224Check(const void *pvBuf, size_t cbBuf, uint8_t const pabDigest[RTSHA224_HASH_SIZE])
106{
107 RTSHA224CONTEXT Ctx;
108 RTSha224Init(&Ctx);
109 RTSha224Update(&Ctx, pvBuf, cbBuf);
110 uint8_t abActualDigest[RTSHA224_HASH_SIZE];
111 RTSha224Final(&Ctx, abActualDigest);
112 bool fRet = memcmp(pabDigest, abActualDigest, RTSHA224_HASH_SIZE) == 0;
113 RT_ZERO(abActualDigest);
114 return fRet;
115}
116RT_EXPORT_SYMBOL(RTSha224Check);
117
118
119RTDECL(void) RTSha224Init(PRTSHA224CONTEXT pCtx)
120{
121 SHA224_Init(&pCtx->Private);
122}
123RT_EXPORT_SYMBOL(RTSha224Init);
124
125
126RTDECL(void) RTSha224Update(PRTSHA224CONTEXT pCtx, const void *pvBuf, size_t cbBuf)
127{
128 SHA224_Update(&pCtx->Private, pvBuf, cbBuf);
129}
130RT_EXPORT_SYMBOL(RTSha224Update);
131
132
133RTDECL(void) RTSha224Final(PRTSHA224CONTEXT pCtx, uint8_t pabDigest[32])
134{
135 SHA224_Final((unsigned char *)&pabDigest[0], &pCtx->Private);
136}
137RT_EXPORT_SYMBOL(RTSha224Final);
138
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