VirtualBox

source: vbox/trunk/src/VBox/Runtime/common/checksum/openssl-sha256.cpp@ 90330

Last change on this file since 90330 was 85121, checked in by vboxsync, 4 years ago

iprt/cdefs.h: Refactored the typedef use of DECLCALLBACK as well as DECLCALLBACKMEMBER to wrap the whole expression, similar to the DECLR?CALLBACKMEMBER macros. This allows adding a throw() at the end when compiling with the VC++ compiler to indicate that the callbacks won't throw anything, so we can stop supressing the C5039 warning about passing functions that can potential throw C++ exceptions to extern C code that can't necessarily cope with such (unwind,++). Introduced a few _EX variations that allows specifying different/no calling convention too, as that's handy when dynamically resolving host APIs. Fixed numerous places missing DECLCALLBACK and such. Left two angry @todos regarding use of CreateThread. bugref:9794

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  • Property svn:keywords set to Author Date Id Revision
File size: 4.2 KB
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1/* $Id: openssl-sha256.cpp 85121 2020-07-08 19:33:26Z vboxsync $ */
2/** @file
3 * IPRT - SHA-256 hash functions.
4 */
5
6/*
7 * Copyright (C) 2009-2020 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 "internal/openssl-pre.h"
34#include <openssl/sha.h>
35#include "internal/openssl-post.h"
36
37#define RT_SHA256_PRIVATE_CONTEXT
38#include <iprt/sha.h>
39
40#include <iprt/assert.h>
41#include <iprt/string.h>
42
43
44AssertCompile(RT_SIZEOFMEMB(RTSHA256CONTEXT, abPadding) >= RT_SIZEOFMEMB(RTSHA256CONTEXT, Private));
45
46
47RTDECL(void) RTSha256(const void *pvBuf, size_t cbBuf, uint8_t pabDigest[RTSHA256_HASH_SIZE])
48{
49 RTSHA256CONTEXT Ctx;
50 RTSha256Init(&Ctx);
51 RTSha256Update(&Ctx, pvBuf, cbBuf);
52 RTSha256Final(&Ctx, pabDigest);
53}
54RT_EXPORT_SYMBOL(RTSha256);
55
56
57RTDECL(bool) RTSha256Check(const void *pvBuf, size_t cbBuf, uint8_t const pabDigest[RTSHA256_HASH_SIZE])
58{
59 RTSHA256CONTEXT Ctx;
60 RTSha256Init(&Ctx);
61 RTSha256Update(&Ctx, pvBuf, cbBuf);
62 uint8_t abActualDigest[RTSHA256_HASH_SIZE];
63 RTSha256Final(&Ctx, abActualDigest);
64 bool fRet = memcmp(pabDigest, abActualDigest, RTSHA256_HASH_SIZE) == 0;
65 RT_ZERO(abActualDigest);
66 return fRet;
67}
68RT_EXPORT_SYMBOL(RTSha256Check);
69
70
71RTDECL(void) RTSha256Init(PRTSHA256CONTEXT pCtx)
72{
73 SHA256_Init(&pCtx->Private);
74}
75RT_EXPORT_SYMBOL(RTSha256Init);
76
77
78RTDECL(void) RTSha256Update(PRTSHA256CONTEXT pCtx, const void *pvBuf, size_t cbBuf)
79{
80 SHA256_Update(&pCtx->Private, pvBuf, cbBuf);
81}
82RT_EXPORT_SYMBOL(RTSha256Update);
83
84
85RTDECL(void) RTSha256Final(PRTSHA256CONTEXT pCtx, uint8_t pabDigest[32])
86{
87 SHA256_Final((unsigned char *)&pabDigest[0], &pCtx->Private);
88}
89RT_EXPORT_SYMBOL(RTSha256Final);
90
91
92/*
93 * We have to expose the same API as alt-sha256.cpp, so the SHA-224
94 * implementation also lives here. (SHA-224 is just a truncated SHA-256 with
95 * different initial values.)
96 */
97RTDECL(void) RTSha224(const void *pvBuf, size_t cbBuf, uint8_t pabDigest[RTSHA224_HASH_SIZE])
98{
99 RTSHA224CONTEXT Ctx;
100 RTSha224Init(&Ctx);
101 RTSha224Update(&Ctx, pvBuf, cbBuf);
102 RTSha224Final(&Ctx, pabDigest);
103}
104RT_EXPORT_SYMBOL(RTSha224);
105
106
107RTDECL(bool) RTSha224Check(const void *pvBuf, size_t cbBuf, uint8_t const pabDigest[RTSHA224_HASH_SIZE])
108{
109 RTSHA224CONTEXT Ctx;
110 RTSha224Init(&Ctx);
111 RTSha224Update(&Ctx, pvBuf, cbBuf);
112 uint8_t abActualDigest[RTSHA224_HASH_SIZE];
113 RTSha224Final(&Ctx, abActualDigest);
114 bool fRet = memcmp(pabDigest, abActualDigest, RTSHA224_HASH_SIZE) == 0;
115 RT_ZERO(abActualDigest);
116 return fRet;
117}
118RT_EXPORT_SYMBOL(RTSha224Check);
119
120
121RTDECL(void) RTSha224Init(PRTSHA224CONTEXT pCtx)
122{
123 SHA224_Init(&pCtx->Private);
124}
125RT_EXPORT_SYMBOL(RTSha224Init);
126
127
128RTDECL(void) RTSha224Update(PRTSHA224CONTEXT pCtx, const void *pvBuf, size_t cbBuf)
129{
130 SHA224_Update(&pCtx->Private, pvBuf, cbBuf);
131}
132RT_EXPORT_SYMBOL(RTSha224Update);
133
134
135RTDECL(void) RTSha224Final(PRTSHA224CONTEXT pCtx, uint8_t pabDigest[32])
136{
137 SHA224_Final((unsigned char *)&pabDigest[0], &pCtx->Private);
138}
139RT_EXPORT_SYMBOL(RTSha224Final);
140
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