1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
|
/* $Id: pkix-signature-ossl.cpp $ */
/** @file
* IPRT - Crypto - Public Key Signature Schema Algorithm, ECDSA Providers.
*/
/*
* Copyright (C) 2006-2023 Oracle and/or its affiliates.
*
* This file is part of VirtualBox base platform packages, as
* available from https://www.virtualbox.org.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation, in version 3 of the
* License.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <https://www.gnu.org/licenses>.
*
* The contents of this file may alternatively be used under the terms
* of the Common Development and Distribution License Version 1.0
* (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
* in the VirtualBox distribution, in which case the provisions of the
* CDDL are applicable instead of those of the GPL.
*
* You may elect to license modified versions of this file under the
* terms and conditions of either the GPL or the CDDL or both.
*
* SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
*/
/*********************************************************************************************************************************
* Header Files *
*********************************************************************************************************************************/
#ifdef IPRT_WITH_OPENSSL /* whole file */
# define LOG_GROUP RTLOGGROUP_CRYPTO
# include "internal/iprt.h"
# include <iprt/crypto/rsa.h>
# include <iprt/bignum.h>
# include <iprt/err.h>
# include <iprt/log.h>
# include <iprt/mem.h>
# include <iprt/string.h>
# include <iprt/crypto/digest.h>
# include <iprt/crypto/pkix.h>
# include "internal/iprt-openssl.h"
# include "internal/openssl-pre.h"
# include <openssl/evp.h>
# include "internal/openssl-post.h"
# ifndef OPENSSL_VERSION_NUMBER
# error "Missing OPENSSL_VERSION_NUMBER!"
# endif
# include "pkix-signature-builtin.h"
# include "rsa-internal.h"
# include "key-internal.h"
/*********************************************************************************************************************************
* Structures and Typedefs *
*********************************************************************************************************************************/
/**
* OpenSSL EVP signature provider instance.
*/
typedef struct RTCRPKIXSIGNATUREOSSLEVP
{
/** Set if we're signing, clear if verifying. */
bool fSigning;
} RTCRPKIXSIGNATUREOSSLEVP;
/** Pointer to an OpenSSL EVP signature provider instance. */
typedef RTCRPKIXSIGNATUREOSSLEVP *PRTCRPKIXSIGNATUREOSSLEVP;
/** @impl_interface_method{RTCRPKIXSIGNATUREDESC,pfnInit} */
static DECLCALLBACK(int) rtCrPkixSignatureOsslEvp_Init(PCRTCRPKIXSIGNATUREDESC pDesc, void *pvState, void *pvOpaque,
bool fSigning, RTCRKEY hKey, PCRTASN1DYNTYPE pParams)
{
RT_NOREF_PV(pvOpaque);
RTCRKEYTYPE enmKeyType = RTCrKeyGetType(hKey);
if (strcmp(pDesc->pszObjId, RTCR_X962_ECDSA_OID) == 0)
{
if (fSigning)
AssertReturn(enmKeyType == RTCRKEYTYPE_ECDSA_PRIVATE, VERR_CR_PKIX_NOT_ECDSA_PRIVATE_KEY);
else
AssertReturn(enmKeyType == RTCRKEYTYPE_ECDSA_PUBLIC, VERR_CR_PKIX_NOT_ECDSA_PUBLIC_KEY);
}
else if (strcmp(pDesc->pszObjId, RTCR_PKCS1_RSA_OID) == 0)
{
if (fSigning)
AssertReturn(enmKeyType == RTCRKEYTYPE_RSA_PRIVATE, VERR_CR_PKIX_NOT_RSA_PRIVATE_KEY);
else
AssertReturn(enmKeyType == RTCRKEYTYPE_RSA_PUBLIC, VERR_CR_PKIX_NOT_RSA_PUBLIC_KEY);
}
else
AssertFailedReturn(VERR_INTERNAL_ERROR_3);
int rc = RTCrKeyVerifyParameterCompatibility(hKey, pParams, true /*fForSignature*/, NULL /*pAlgorithm*/, NULL /*pErrInfo*/);
if (RT_FAILURE(rc))
return rc;
/*
* Locate the EVP_MD for the algorithm.
*/
rtCrOpenSslInit();
int iAlgoNid = OBJ_txt2nid(pDesc->pszObjId);
if (iAlgoNid != NID_undef)
{
PRTCRPKIXSIGNATUREOSSLEVP pThis = (PRTCRPKIXSIGNATUREOSSLEVP)pvState;
pThis->fSigning = fSigning;
return VINF_SUCCESS;
}
return VERR_CR_PKIX_OSSL_CIPHER_ALGO_NOT_KNOWN_EVP;
}
/** @impl_interface_method{RTCRPKIXSIGNATUREDESC,pfnReset} */
static DECLCALLBACK(int) rtCrPkixSignatureOsslEvp_Reset(PCRTCRPKIXSIGNATUREDESC pDesc, void *pvState, bool fSigning)
{
PRTCRPKIXSIGNATUREOSSLEVP pThis = (PRTCRPKIXSIGNATUREOSSLEVP)pvState;
RT_NOREF_PV(fSigning); RT_NOREF_PV(pDesc);
Assert(pThis->fSigning == fSigning); NOREF(pThis);
return VINF_SUCCESS;
}
/** @impl_interface_method{RTCRPKIXSIGNATUREDESC,pfnDelete} */
static DECLCALLBACK(void) rtCrPkixSignatureOsslEvp_Delete(PCRTCRPKIXSIGNATUREDESC pDesc, void *pvState, bool fSigning)
{
PRTCRPKIXSIGNATUREOSSLEVP pThis = (PRTCRPKIXSIGNATUREOSSLEVP)pvState;
RT_NOREF_PV(fSigning); RT_NOREF_PV(pDesc);
Assert(pThis->fSigning == fSigning);
NOREF(pThis);
}
/** @impl_interface_method{RTCRPKIXSIGNATUREDESC,pfnVerify} */
static DECLCALLBACK(int) rtCrPkixSignatureOsslEvp_Verify(PCRTCRPKIXSIGNATUREDESC pDesc, void *pvState, RTCRKEY hKey,
RTCRDIGEST hDigest, void const *pvSignature, size_t cbSignature)
{
PRTCRPKIXSIGNATUREOSSLEVP pThis = (PRTCRPKIXSIGNATUREOSSLEVP)pvState;
Assert(!pThis->fSigning);
RT_NOREF_PV(pThis);
#if OPENSSL_VERSION_NUMBER >= 0x10000000
PRTERRINFO const pErrInfo = NULL;
/*
* Get the hash before we do anything that needs cleaning up.
*/
int rc = RTCrDigestFinal(hDigest, NULL, 0);
AssertRCReturn(rc, rc);
uint8_t const * const pbDigest = RTCrDigestGetHash(hDigest);
AssertReturn(pbDigest, VERR_INTERNAL_ERROR_3);
uint32_t const cbDigest = RTCrDigestGetHashSize(hDigest);
AssertReturn(cbDigest > 0 && cbDigest < _16K, VERR_INTERNAL_ERROR_4);
/*
* Combine the encryption and digest algorithms.
*/
const char * const pszDigestOid = RTCrDigestGetAlgorithmOid(hDigest);
const char * const pszEncryptedDigestOid
= RTCrX509AlgorithmIdentifier_CombineEncryptionOidAndDigestOid(pDesc->pszObjId, pszDigestOid);
/*
* Create an EVP public key from hKey and pszEncryptedDigestOid.
*/
int const iAlgoNid = OBJ_txt2nid(pszEncryptedDigestOid);
if (iAlgoNid == NID_undef)
return VERR_CR_PKIX_OSSL_CIPHER_ALGO_NOT_KNOWN_EVP;
/* Create an EVP public key. */
EVP_PKEY *pEvpPublicKey = NULL;
const EVP_MD *pEvpMdType = NULL;
rc = rtCrKeyToOpenSslKeyEx(hKey, true /*fNeedPublic*/, pszEncryptedDigestOid,
(void **)&pEvpPublicKey, (const void **)&pEvpMdType, pErrInfo);
if (RT_SUCCESS(rc))
{
# if OPENSSL_VERSION_NUMBER >= 0x30000000 && !defined(LIBRESSL_VERSION_NUMBER)
EVP_PKEY_CTX * const pEvpPublickKeyCtx = EVP_PKEY_CTX_new_from_pkey(NULL, pEvpPublicKey, NULL);
# else
EVP_PKEY_CTX * const pEvpPublickKeyCtx = EVP_PKEY_CTX_new(pEvpPublicKey, NULL);
# endif
if (pEvpPublickKeyCtx)
{
rc = EVP_PKEY_verify_init(pEvpPublickKeyCtx);
if (rc > 0)
{
rc = EVP_PKEY_CTX_set_signature_md(pEvpPublickKeyCtx, pEvpMdType);
if (rc > 0)
{
rc = EVP_PKEY_verify(pEvpPublickKeyCtx, (const unsigned char *)pvSignature, cbSignature, pbDigest, cbDigest);
if (rc > 0)
rc = VINF_SUCCESS;
else
rc = RTERRINFO_LOG_SET_F(pErrInfo, VERR_CR_PKIX_OSSL_VERIFY_FINAL_FAILED,
"EVP_PKEY_verify failed (%d)", rc);
}
else
rc = RTERRINFO_LOG_SET_F(pErrInfo, VERR_CR_PKIX_OSSL_CIPHER_ALOG_INIT_FAILED,
"EVP_PKEY_CTX_set_signature_md failed (%d)", rc);
}
else
rc = RTERRINFO_LOG_SET_F(pErrInfo, VERR_CR_PKIX_OSSL_CIPHER_ALOG_INIT_FAILED,
"EVP_PKEY_verify_init failed (%d)", rc);
EVP_PKEY_CTX_free(pEvpPublickKeyCtx);
}
else
rc = RTERRINFO_LOG_SET_F(pErrInfo, VERR_CR_PKIX_OSSL_CIPHER_ALOG_INIT_FAILED,
"EVP_PKEY_CTX_new_from_pkey failed (%d)", rc);
EVP_PKEY_free(pEvpPublicKey);
}
return rc;
#else
RT_NOREF(pDesc, pvState, hKey, hDigest, pvSignature, cbSignature);
return VERR_CR_OPENSSL_VERSION_TOO_OLD;
#endif
}
/** @impl_interface_method{RTCRPKIXSIGNATUREDESC,pfnSign} */
static DECLCALLBACK(int) rtCrPkixSignatureOsslEvp_Sign(PCRTCRPKIXSIGNATUREDESC pDesc, void *pvState, RTCRKEY hKey,
RTCRDIGEST hDigest, void *pvSignature, size_t *pcbSignature)
{
PRTCRPKIXSIGNATUREOSSLEVP pThis = (PRTCRPKIXSIGNATUREOSSLEVP)pvState;
Assert(pThis->fSigning);
RT_NOREF(pThis, pDesc);
#if 0
/*
* Get the key bits we need.
*/
Assert(RTCrKeyGetType(hKey) == RTCRKEYTYPE_RSA_PRIVATE);
PRTBIGNUM pModulus = &hKey->u.RsaPrivate.Modulus;
PRTBIGNUM pExponent = &hKey->u.RsaPrivate.PrivateExponent;
return rc;
#else
RT_NOREF(pDesc, pvState, hKey, hDigest, pvSignature, pcbSignature);
return VERR_NOT_IMPLEMENTED;
#endif
}
/** ECDSA alias ODIs. */
static const char * const g_apszHashWithEcdsaAliases[] =
{
RTCR_X962_ECDSA_WITH_SHA1_OID,
RTCR_X962_ECDSA_WITH_SHA2_OID,
RTCR_X962_ECDSA_WITH_SHA224_OID,
RTCR_X962_ECDSA_WITH_SHA256_OID,
RTCR_X962_ECDSA_WITH_SHA384_OID,
RTCR_X962_ECDSA_WITH_SHA512_OID,
RTCR_NIST_SHA3_224_WITH_ECDSA_OID,
RTCR_NIST_SHA3_256_WITH_ECDSA_OID,
RTCR_NIST_SHA3_384_WITH_ECDSA_OID,
RTCR_NIST_SHA3_512_WITH_ECDSA_OID,
NULL
};
/** ECDSA descriptor. */
DECL_HIDDEN_CONST(RTCRPKIXSIGNATUREDESC const) g_rtCrPkixSigningHashWithEcdsaDesc =
{
"ECDSA",
RTCR_X962_ECDSA_OID,
g_apszHashWithEcdsaAliases,
sizeof(RTCRPKIXSIGNATUREOSSLEVP),
0,
0,
rtCrPkixSignatureOsslEvp_Init,
rtCrPkixSignatureOsslEvp_Reset,
rtCrPkixSignatureOsslEvp_Delete,
rtCrPkixSignatureOsslEvp_Verify,
rtCrPkixSignatureOsslEvp_Sign,
};
#endif /* IPRT_WITH_OPENSSL */
|
