pkix-verify.cpp@ 84379

Last change on this file since 84379 was 84230, checked in by vboxsync, 5 years ago
IPRT,openssl: Adding RTCrPkcs7SimpleSignSignedData as a feeble start at PKCS#7/CMS signing. bugref:9699
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 12.3 KB

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1	/* $Id: pkix-verify.cpp 84230 2020-05-10 00:52:05Z vboxsync $ */
2	/** @file
3	* IPRT - Crypto - Public Key Infrastructure API, Verification.
4	*/
5
6	/*
7	* Copyright (C) 2006-2020 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	#include <iprt/crypto/pkix.h>
33
34	#include <iprt/err.h>
35	#include <iprt/string.h>
36	#include <iprt/crypto/digest.h>
37	#include <iprt/crypto/key.h>
38
39	#ifdef IPRT_WITH_OPENSSL
40	# include "internal/iprt-openssl.h"
41	# include "openssl/evp.h"
42	# ifndef OPENSSL_VERSION_NUMBER
43	# error "Missing OPENSSL_VERSION_NUMBER!"
44	# endif
45	#endif
46
47
48
49	RTDECL(int) RTCrPkixPubKeyVerifySignature(PCRTASN1OBJID pAlgorithm, RTCRKEY hPublicKey, PCRTASN1DYNTYPE pParameters,
50	PCRTASN1BITSTRING pSignatureValue, const void *pvData, size_t cbData,
51	PRTERRINFO pErrInfo)
52	{
53	/*
54	* Valid input.
55	*/
56	AssertPtrReturn(pAlgorithm, VERR_INVALID_POINTER);
57	AssertReturn(RTAsn1ObjId_IsPresent(pAlgorithm), VERR_INVALID_POINTER);
58
59	if (pParameters)
60	{
61	AssertPtrReturn(pParameters, VERR_INVALID_POINTER);
62	if (pParameters->enmType == RTASN1TYPE_NULL)
63	pParameters = NULL;
64	}
65
66	AssertPtrReturn(hPublicKey, VERR_INVALID_POINTER);
67	Assert(RTCrKeyHasPublicPart(hPublicKey));
68
69	AssertPtrReturn(pSignatureValue, VERR_INVALID_POINTER);
70	AssertReturn(RTAsn1BitString_IsPresent(pSignatureValue), VERR_INVALID_POINTER);
71
72	AssertPtrReturn(pvData, VERR_INVALID_POINTER);
73	AssertReturn(cbData > 0, VERR_INVALID_PARAMETER);
74
75	/*
76	* Parameters are not currently supported (openssl code path).
77	*/
78	if (pParameters)
79	return RTErrInfoSet(pErrInfo, VERR_CR_PKIX_CIPHER_ALGO_PARAMS_NOT_IMPL,
80	"Cipher algorithm parameters are not yet supported.");
81
82	/*
83	* Validate using IPRT.
84	*/
85	RTCRPKIXSIGNATURE hSignature;
86	int rcIprt = RTCrPkixSignatureCreateByObjId(&hSignature, pAlgorithm, hPublicKey, pParameters, false /fSigning/);
87	if (RT_FAILURE(rcIprt))
88	return RTErrInfoSetF(pErrInfo, VERR_CR_PKIX_CIPHER_ALGO_NOT_KNOWN,
89	"Unknown public key algorithm [IPRT]: %s", pAlgorithm->szObjId);
90
91	RTCRDIGEST hDigest;
92	rcIprt = RTCrDigestCreateByObjId(&hDigest, pAlgorithm);
93	if (RT_SUCCESS(rcIprt))
94	{
95	/* Calculate the digest. */
96	rcIprt = RTCrDigestUpdate(hDigest, pvData, cbData);
97	if (RT_SUCCESS(rcIprt))
98	{
99	rcIprt = RTCrPkixSignatureVerifyBitString(hSignature, hDigest, pSignatureValue);
100	if (RT_FAILURE(rcIprt))
101	RTErrInfoSet(pErrInfo, rcIprt, "RTCrPkixSignatureVerifyBitString failed");
102	}
103	else
104	RTErrInfoSet(pErrInfo, rcIprt, "RTCrDigestUpdate failed");
105	RTCrDigestRelease(hDigest);
106	}
107	else
108	RTErrInfoSetF(pErrInfo, rcIprt, "Unknown digest algorithm [IPRT]: %s", pAlgorithm->szObjId);
109	RTCrPkixSignatureRelease(hSignature);
110
111	#ifdef IPRT_WITH_OPENSSL
112	/*
113	* Validate using OpenSSL EVP.
114	*/
115	/* Create an EVP public key. */
116	EVP_PKEY *pEvpPublicKey = NULL;
117	const EVP_MD *pEvpMdType = NULL;
118	int rcOssl = rtCrKeyToOpenSslKeyEx(hPublicKey, true /fNeedPublic/, pAlgorithm->szObjId,
119	(void )&pEvpPublicKey, (const void )&pEvpMdType, pErrInfo);
120	if (RT_SUCCESS(rcOssl))
121	{
122	EVP_MD_CTX *pEvpMdCtx = EVP_MD_CTX_create();
123	if (pEvpMdCtx)
124	{
125	if (EVP_VerifyInit_ex(pEvpMdCtx, pEvpMdType, NULL /engine/))
126	{
127	/* Digest the data. */
128	EVP_VerifyUpdate(pEvpMdCtx, pvData, cbData);
129
130	/* Verify the signature. */
131	if (EVP_VerifyFinal(pEvpMdCtx,
132	RTASN1BITSTRING_GET_BIT0_PTR(pSignatureValue),
133	RTASN1BITSTRING_GET_BYTE_SIZE(pSignatureValue),
134	pEvpPublicKey) > 0)
135	rcOssl = VINF_SUCCESS;
136	else
137	rcOssl = RTErrInfoSet(pErrInfo, VERR_CR_PKIX_OSSL_VERIFY_FINAL_FAILED, "EVP_VerifyFinal failed");
138
139	/* Cleanup and return: */
140	}
141	else
142	rcOssl = RTErrInfoSetF(pErrInfo, VERR_CR_PKIX_OSSL_CIPHER_ALOG_INIT_FAILED,
143	"EVP_VerifyInit_ex failed (algorithm type is %s)", pAlgorithm->szObjId);
144	EVP_MD_CTX_destroy(pEvpMdCtx);
145	}
146	else
147	rcOssl = RTErrInfoSetF(pErrInfo, VERR_NO_MEMORY, "EVP_MD_CTX_create failed");
148	EVP_PKEY_free(pEvpPublicKey);
149	}
150
151	/*
152	* Check the result.
153	*/
154	if ( (RT_SUCCESS(rcIprt) && RT_SUCCESS(rcOssl))
155	\|\| (RT_FAILURE_NP(rcIprt) && RT_FAILURE_NP(rcOssl))
156	\|\| (RT_SUCCESS(rcIprt) && rcOssl == VERR_CR_PKIX_OSSL_CIPHER_ALGO_NOT_KNOWN_EVP) )
157	return rcIprt;
158	AssertMsgFailed(("rcIprt=%Rrc rcOssl=%Rrc\n", rcIprt, rcOssl));
159	if (RT_FAILURE_NP(rcOssl))
160	return rcOssl;
161	#endif /* IPRT_WITH_OPENSSL */
162
163	return rcIprt;
164	}
165
166
167	RTDECL(int) RTCrPkixPubKeyVerifySignedDigest(PCRTASN1OBJID pAlgorithm, RTCRKEY hPublicKey, PCRTASN1DYNTYPE pParameters,
168	void const *pvSignedDigest, size_t cbSignedDigest, RTCRDIGEST hDigest,
169	PRTERRINFO pErrInfo)
170	{
171	/*
172	* Valid input.
173	*/
174	AssertPtrReturn(pAlgorithm, VERR_INVALID_POINTER);
175	AssertReturn(RTAsn1ObjId_IsPresent(pAlgorithm), VERR_INVALID_POINTER);
176
177	if (pParameters)
178	{
179	AssertPtrReturn(pParameters, VERR_INVALID_POINTER);
180	if (pParameters->enmType == RTASN1TYPE_NULL)
181	pParameters = NULL;
182	}
183
184	AssertPtrReturn(hPublicKey, VERR_INVALID_POINTER);
185	Assert(RTCrKeyHasPublicPart(hPublicKey));
186
187	AssertPtrReturn(pvSignedDigest, VERR_INVALID_POINTER);
188	AssertReturn(cbSignedDigest, VERR_INVALID_PARAMETER);
189
190	AssertPtrReturn(hDigest, VERR_INVALID_HANDLE);
191
192	/*
193	* Parameters are not currently supported (openssl code path).
194	*/
195	if (pParameters)
196	return RTErrInfoSet(pErrInfo, VERR_CR_PKIX_CIPHER_ALGO_PARAMS_NOT_IMPL,
197	"Cipher algorithm parameters are not yet supported.");
198
199	/*
200	* Validate using IPRT.
201	*/
202	RTCRPKIXSIGNATURE hSignature;
203	int rcIprt = RTCrPkixSignatureCreateByObjId(&hSignature, pAlgorithm, hPublicKey, pParameters, false /fSigning/);
204	if (RT_FAILURE(rcIprt))
205	return RTErrInfoSetF(pErrInfo, VERR_CR_PKIX_CIPHER_ALGO_NOT_KNOWN,
206	"Unknown public key algorithm [IPRT]: %s", pAlgorithm->szObjId);
207
208	rcIprt = RTCrPkixSignatureVerify(hSignature, hDigest, pvSignedDigest, cbSignedDigest);
209	if (RT_FAILURE(rcIprt))
210	RTErrInfoSet(pErrInfo, rcIprt, "RTCrPkixSignatureVerifyBitString failed");
211
212	RTCrPkixSignatureRelease(hSignature);
213
214	#if defined(IPRT_WITH_OPENSSL) \
215	&& (OPENSSL_VERSION_NUMBER > 0x10000000L) /* 0.9.8 doesn't seem to have EVP_PKEY_CTX_set_signature_md. */
216	/*
217	* Validate using OpenSSL EVP.
218	*/
219	/* Combine encryption and digest if the algorithm doesn't specify the digest type. */
220	const char *pszAlgObjId = pAlgorithm->szObjId;
221	if (!strcmp(pszAlgObjId, RTCRX509ALGORITHMIDENTIFIERID_RSA))
222	{
223	pszAlgObjId = RTCrX509AlgorithmIdentifier_CombineEncryptionOidAndDigestOid(pszAlgObjId,
224	RTCrDigestGetAlgorithmOid(hDigest));
225	AssertMsgStmt(pszAlgObjId, ("enc=%s hash=%s\n", pAlgorithm->szObjId, RTCrDigestGetAlgorithmOid(hDigest)),
226	pszAlgObjId = RTCrDigestGetAlgorithmOid(hDigest));
227	}
228
229	/* Create an EVP public key. */
230	EVP_PKEY *pEvpPublicKey = NULL;
231	const EVP_MD *pEvpMdType = NULL;
232	int rcOssl = rtCrKeyToOpenSslKeyEx(hPublicKey, true /fNeedPublic/, pszAlgObjId,
233	(void )&pEvpPublicKey, (const void )&pEvpMdType, pErrInfo);
234	if (RT_SUCCESS(rcOssl))
235	{
236	/* Create an EVP public key context we can use to validate the digest. */
237	EVP_PKEY_CTX *pEvpPKeyCtx = EVP_PKEY_CTX_new(pEvpPublicKey, NULL);
238	if (pEvpPKeyCtx)
239	{
240	rcOssl = EVP_PKEY_verify_init(pEvpPKeyCtx);
241	if (rcOssl > 0)
242	{
243	rcOssl = EVP_PKEY_CTX_set_signature_md(pEvpPKeyCtx, pEvpMdType);
244	if (rcOssl > 0)
245	{
246	/* Get the digest from hDigest and verify it. */
247	rcOssl = EVP_PKEY_verify(pEvpPKeyCtx,
248	(uint8_t const *)pvSignedDigest,
249	cbSignedDigest,
250	RTCrDigestGetHash(hDigest),
251	RTCrDigestGetHashSize(hDigest));
252	if (rcOssl > 0)
253	rcOssl = VINF_SUCCESS;
254	else
255	rcOssl = RTErrInfoSetF(pErrInfo, VERR_CR_PKIX_OSSL_VERIFY_FINAL_FAILED,
256	"EVP_PKEY_verify failed (%d)", rcOssl);
257	/* Cleanup and return: */
258	}
259	else
260	rcOssl = RTErrInfoSetF(pErrInfo, VERR_CR_PKIX_OSSL_EVP_PKEY_TYPE_ERROR,
261	"EVP_PKEY_CTX_set_signature_md failed (%d)", rcOssl);
262	}
263	else
264	rcOssl = RTErrInfoSetF(pErrInfo, VERR_CR_PKIX_OSSL_EVP_PKEY_TYPE_ERROR,
265	"EVP_PKEY_verify_init failed (%d)", rcOssl);
266	EVP_PKEY_CTX_free(pEvpPKeyCtx);
267	}
268	else
269	rcOssl = RTErrInfoSet(pErrInfo, VERR_CR_PKIX_OSSL_EVP_PKEY_TYPE_ERROR, "EVP_PKEY_CTX_new failed");
270	EVP_PKEY_free(pEvpPublicKey);
271	}
272
273	/*
274	* Check the result.
275	*/
276	if ( (RT_SUCCESS(rcIprt) && RT_SUCCESS(rcOssl))
277	\|\| (RT_FAILURE_NP(rcIprt) && RT_FAILURE_NP(rcOssl))
278	\|\| (RT_SUCCESS(rcIprt) && rcOssl == VERR_CR_PKIX_OSSL_CIPHER_ALGO_NOT_KNOWN_EVP) )
279	return rcIprt;
280	AssertMsgFailed(("rcIprt=%Rrc rcOssl=%Rrc\n", rcIprt, rcOssl));
281	if (RT_FAILURE_NP(rcOssl))
282	return rcOssl;
283	#endif /* IPRT_WITH_OPENSSL */
284
285	return rcIprt;
286	}
287
288
289	RTDECL(int) RTCrPkixPubKeyVerifySignedDigestByCertPubKeyInfo(PCRTCRX509SUBJECTPUBLICKEYINFO pCertPubKeyInfo,
290	void const *pvSignedDigest, size_t cbSignedDigest,
291	RTCRDIGEST hDigest, PRTERRINFO pErrInfo)
292	{
293	RTCRKEY hPublicKey;
294	int rc = RTCrKeyCreateFromPublicAlgorithmAndBits(&hPublicKey, &pCertPubKeyInfo->Algorithm.Algorithm,
295	&pCertPubKeyInfo->SubjectPublicKey, pErrInfo, NULL);
296	if (RT_SUCCESS(rc))
297	{
298	rc = RTCrPkixPubKeyVerifySignedDigest(&pCertPubKeyInfo->Algorithm.Algorithm, hPublicKey,
299	&pCertPubKeyInfo->Algorithm.Parameters, pvSignedDigest, cbSignedDigest,
300	hDigest, pErrInfo);
301
302	uint32_t cRefs = RTCrKeyRelease(hPublicKey);
303	Assert(cRefs == 0); RT_NOREF(cRefs);
304	}
305	return rc;
306	}
307

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source: vbox/trunk/src/VBox/Runtime/common/crypto/pkix-verify.cpp@ 84379

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