key-file.cpp@ 78306

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1	/* $Id: key-file.cpp 76553 2019-01-01 01:45:53Z vboxsync $ */
2	/** @file
3	* IPRT - Crypto - Cryptographic Keys, File I/O.
4	*/
5
6	/*
7	* Copyright (C) 2006-2019 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	#include <iprt/crypto/key.h>
33
34	#include <iprt/alloca.h>
35	#include <iprt/asm.h>
36	#include <iprt/assert.h>
37	#include <iprt/ctype.h>
38	#include <iprt/err.h>
39	#include <iprt/mem.h>
40	#include <iprt/memsafer.h>
41	#include <iprt/path.h>
42	#include <iprt/string.h>
43	#include <iprt/crypto/rsa.h>
44	#include <iprt/crypto/pkix.h>
45	#include <iprt/crypto/x509.h>
46
47	#include "internal/magics.h"
48	#include "key-internal.h"
49
50	#ifdef IPRT_WITH_OPENSSL
51	# include "internal/iprt-openssl.h"
52	# include "openssl/evp.h"
53	# ifndef OPENSSL_VERSION_NUMBER
54	# error "Missing OPENSSL_VERSION_NUMBER!"
55	# endif
56	#endif
57
58
59	/*********************************************************************************************************************************
60	* Header Files *
61	*********************************************************************************************************************************/
62	/** RSA public key marker words. */
63	static RTCRPEMMARKERWORD const g_aWords_RsaPublicKey[] =
64	{ { RT_STR_TUPLE("RSA") }, { RT_STR_TUPLE("PUBLIC") }, { RT_STR_TUPLE("KEY") } };
65	/** Generic public key marker words. */
66	static RTCRPEMMARKERWORD const g_aWords_PublicKey[] =
67	{ { RT_STR_TUPLE("PUBLIC") }, { RT_STR_TUPLE("KEY") } };
68
69	/** Public key markers. */
70	RT_DECL_DATA_CONST(RTCRPEMMARKER const) g_aRTCrKeyPublicMarkers[] =
71	{
72	{ g_aWords_RsaPublicKey, RT_ELEMENTS(g_aWords_RsaPublicKey) },
73	{ g_aWords_PublicKey, RT_ELEMENTS(g_aWords_PublicKey) },
74	};
75	/** Number of entries in g_aRTCrKeyPublicMarkers. */
76	RT_DECL_DATA_CONST(uint32_t const) g_cRTCrKeyPublicMarkers = RT_ELEMENTS(g_aRTCrKeyPublicMarkers);
77
78
79	/** RSA private key marker words. */
80	static RTCRPEMMARKERWORD const g_aWords_RsaPrivateKey[] =
81	{ { RT_STR_TUPLE("RSA") }, { RT_STR_TUPLE("PRIVATE") }, { RT_STR_TUPLE("KEY") } };
82	/** Generic encrypted private key marker words. */
83	static RTCRPEMMARKERWORD const g_aWords_EncryptedPrivateKey[] =
84	{ { RT_STR_TUPLE("ENCRYPTED") }, { RT_STR_TUPLE("PRIVATE") }, { RT_STR_TUPLE("KEY") } };
85	/** Generic private key marker words. */
86	static RTCRPEMMARKERWORD const g_aWords_PrivateKey[] =
87	{ { RT_STR_TUPLE("PRIVATE") }, { RT_STR_TUPLE("KEY") } };
88
89	/** Private key markers. */
90	RT_DECL_DATA_CONST(RTCRPEMMARKER const) g_aRTCrKeyPrivateMarkers[] =
91	{
92	{ g_aWords_RsaPrivateKey, RT_ELEMENTS(g_aWords_RsaPrivateKey) },
93	{ g_aWords_EncryptedPrivateKey, RT_ELEMENTS(g_aWords_EncryptedPrivateKey) },
94	{ g_aWords_PrivateKey, RT_ELEMENTS(g_aWords_PrivateKey) },
95	};
96	/** Number of entries in g_aRTCrKeyPrivateMarkers. */
97	RT_DECL_DATA_CONST(uint32_t const) g_cRTCrKeyPrivateMarkers = RT_ELEMENTS(g_aRTCrKeyPrivateMarkers);
98
99
100	/** Private and public key markers. */
101	RT_DECL_DATA_CONST(RTCRPEMMARKER const) g_aRTCrKeyAllMarkers[] =
102	{
103	{ g_aWords_RsaPublicKey, RT_ELEMENTS(g_aWords_RsaPublicKey) },
104	{ g_aWords_PublicKey, RT_ELEMENTS(g_aWords_PublicKey) },
105	{ g_aWords_RsaPrivateKey, RT_ELEMENTS(g_aWords_RsaPrivateKey) },
106	{ g_aWords_PrivateKey, RT_ELEMENTS(g_aWords_PrivateKey) },
107	};
108	/** Number of entries in g_aRTCrKeyAllMarkers. */
109	RT_DECL_DATA_CONST(uint32_t const) g_cRTCrKeyAllMarkers = RT_ELEMENTS(g_aRTCrKeyAllMarkers);
110
111
112	/**
113	* Decrypts a PEM message.
114	*
115	* @returns IPRT status code
116	* @param pszDekInfo The decryption info. See RFC-1421 section 4.6.1.3
117	* as well as RFC-1423).
118	* @param pszPassword The password to use to decrypt the key text.
119	* @param pbEncrypted The encrypted key text.
120	* @param cbEncrypted The size of the encrypted text.
121	* @param ppbDecrypted Where to return the decrypted message. Free using RTMemSaferFree.
122	* @param pcbDecrypted Where to return the length of the decrypted message.
123	* @param pcbDecryptedAlloced Where to return the allocation size.
124	* @param pErrInfo Where to return additional error information.
125	*/
126	static int rtCrKeyDecryptPemMessage(const char pszDekInfo, const char pszPassword, uint8_t *pbEncrypted, size_t cbEncrypted,
127	uint8_t *ppbDecrypted, size_t pcbDecrypted, size_t *pcbDecryptedAlloced, PRTERRINFO pErrInfo)
128	{
129	/*
130	* Initialize return values.
131	*/
132	*ppbDecrypted = NULL;
133	*pcbDecrypted = 0;
134	*pcbDecryptedAlloced = 0;
135
136	/*
137	* Parse the DEK-Info.
138	*/
139	if (!pszDekInfo)
140	return VERR_CR_KEY_NO_DEK_INFO;
141
142	/* Find the end of the algorithm */
143	const char *pszParams = strchr(pszDekInfo, ',');
144	if (!pszParams)
145	pszParams = strchr(pszDekInfo, '\0');
146	size_t cchAlgo = pszParams - pszDekInfo;
147	while (cchAlgo > 0 && RT_C_IS_SPACE(pszDekInfo[cchAlgo - 1]))
148	cchAlgo--;
149
150	/* Copy it out and zero terminating it. */
151	char szAlgo[256];
152	if (cchAlgo >= sizeof(szAlgo))
153	return RTErrInfoSetF(pErrInfo, VERR_CR_KEY_DEK_INFO_TOO_LONG, "Algorithms list is too long (%s)", pszDekInfo);
154	memcpy(szAlgo, pszDekInfo, cchAlgo);
155	szAlgo[cchAlgo] = '\0';
156
157	/* Parameters. */
158	pszParams = RTStrStripL(*pszParams == ',' ? pszParams + 1 : pszParams);
159	size_t const cchParams = strlen(pszParams);
160
161	/*
162	* Do we support the cihper?
163	*/
164	#ifdef IPRT_WITH_OPENSSL /** @todo abstract encryption & decryption. */
165	const EVP_CIPHER *pCipher = EVP_get_cipherbyname(szAlgo);
166	if (!pCipher)
167	return RTErrInfoSetF(pErrInfo, VERR_CR_KEY_UNSUPPORTED_CIPHER, "Unknown key cipher: %s (params: %s)", szAlgo, pszParams);
168
169	/* Decode the initialization vector if one is required. */
170	uint8_t *pbInitVector = NULL;
171	int const cbInitVector = EVP_CIPHER_iv_length(pCipher);
172	if (cbInitVector > 0)
173	{
174	if (*pszParams == '\0')
175	return RTErrInfoSetF(pErrInfo, VERR_CR_KEY_MISSING_CIPHER_PARAMS,
176	"Cipher '%s' expected %u bytes initialization vector, none found", cbInitVector, szAlgo);
177	if ((size_t)cbInitVector > cchParams / 2)
178	return RTErrInfoSetF(pErrInfo, VERR_CR_KEY_TOO_SHORT_CIPHER_IV,
179	"Too short initialization vector for '%s', expected %u chars found only %u: %s",
180	szAlgo, cbInitVector * 2, cchParams, pszParams);
181	pbInitVector = (uint8_t *)alloca(cbInitVector);
182	int rc = RTStrConvertHexBytes(pszParams, pbInitVector, cbInitVector, 0 /fFlags/);
183	if ( RT_FAILURE(rc)
184	&& rc != VERR_BUFFER_OVERFLOW /* openssl ignores this condition */)
185	return RTErrInfoSetF(pErrInfo, VERR_CR_KEY_MALFORMED_CIPHER_IV,
186	"Malformed initialization vector for '%s': %s (rc=%Rrc)", szAlgo, pszParams, rc);
187	}
188	else if (*pszParams != '\0')
189	return RTErrInfoSetF(pErrInfo, VERR_CR_KEY_UNEXPECTED_CIPHER_PARAMS,
190	"Cipher '%s' expected no parameters, found: %s", szAlgo, pszParams);
191
192	/*
193	* Do we have a password? If so try decrypt the key.
194	*/
195	if (!pszPassword)
196	return VERR_CR_KEY_ENCRYPTED;
197
198	unsigned char abKey[EVP_MAX_KEY_LENGTH * 2];
199	int cbKey = EVP_BytesToKey(pCipher, EVP_md5(), pbInitVector, (unsigned char const *)pszPassword, (int)strlen(pszPassword),
200	1, abKey, NULL);
201	if (!cbKey)
202	return RTErrInfoSetF(pErrInfo, VERR_CR_KEY_PASSWORD_ENCODING, "EVP_BytesToKey failed to encode password");
203
204	EVP_CIPHER_CTX *pCipherCtx = EVP_CIPHER_CTX_new();
205	if (!pCipherCtx)
206	return VERR_NO_MEMORY;
207
208	int rc;
209	if (EVP_DecryptInit_ex(pCipherCtx, pCipher, NULL /pEngine/, abKey, pbInitVector))
210	{
211	size_t cbDecryptedAlloced = cbEncrypted;
212	int cbDecrypted = (int)cbDecryptedAlloced;
213	uint8_t pbDecrypted = (uint8_t )RTMemSaferAllocZ(cbDecryptedAlloced);
214	if (pbDecrypted)
215	{
216	if (EVP_DecryptUpdate(pCipherCtx, pbDecrypted, &cbDecrypted, pbEncrypted, (int)cbEncrypted))
217	{
218	int cbFinal = (int)cbDecryptedAlloced - cbDecrypted;
219	if (EVP_DecryptFinal_ex(pCipherCtx, &pbDecrypted[cbDecrypted], &cbFinal))
220	{
221	cbDecrypted += cbFinal;
222	Assert((size_t)cbDecrypted <= cbDecryptedAlloced);
223
224	/*
225	* Done! Just set the return values.
226	*/
227	*pcbDecrypted = cbDecrypted;
228	*pcbDecryptedAlloced = cbDecryptedAlloced;
229	*ppbDecrypted = pbDecrypted;
230	pbDecrypted = NULL;
231	rc = VINF_CR_KEY_WAS_DECRYPTED;
232	}
233	else
234	rc = RTErrInfoSetF(pErrInfo, VERR_CR_KEY_DECRYPTION_FAILED,
235	"Incorrect password? EVP_DecryptFinal_ex failed for %s", pszDekInfo);
236	}
237	else
238	rc = RTErrInfoSetF(pErrInfo, VERR_CR_KEY_DECRYPTION_FAILED,
239	"Incorrect password? EVP_DecryptUpdate failed for %s", pszDekInfo);
240	if (pbDecrypted)
241	RTMemSaferFree(pbDecrypted, cbDecryptedAlloced);
242	}
243	else
244	rc = VERR_NO_MEMORY;
245	}
246	else
247	rc = RTErrInfoSetF(pErrInfo, VERR_CR_KEY_OSSL_DECRYPT_INIT_ERROR, "EVP_DecryptInit_ex failed for %s", pszDekInfo);
248	EVP_CIPHER_CTX_free(pCipherCtx);
249	return rc;
250	#else
251	RT_NOREF(pbEncrypted, cbEncrypted, pszPassword, pErrInfo, cchParams);
252	return VERR_CR_KEY_DECRYPTION_NOT_SUPPORTED;
253	#endif
254	}
255
256
257	RTDECL(int) RTCrKeyCreateFromPemSection(PRTCRKEY phKey, PCRTCRPEMSECTION pSection, uint32_t fFlags, const char *pszPassword,
258	PRTERRINFO pErrInfo, const char *pszErrorTag)
259	{
260	AssertReturn(!(fFlags & (~RTCRKEYFROM_F_VALID_MASK \| RTCRKEYFROM_F_ONLY_PEM)), VERR_INVALID_FLAGS);
261
262	AssertPtrReturn(phKey, VERR_INVALID_POINTER);
263	*phKey = NIL_RTCRKEY;
264	AssertPtrReturn(pSection, VERR_INVALID_POINTER);
265	NOREF(pszPassword);
266
267	/*
268	* If the source is PEM section, try identify the format from the markers.
269	*/
270	enum
271	{
272	kKeyFormat_Unknown = 0,
273	kKeyFormat_RsaPrivateKey,
274	kKeyFormat_RsaEncryptedPrivateKey,
275	kKeyFormat_RsaPublicKey,
276	kKeyFormat_SubjectPublicKeyInfo,
277	kKeyFormat_PrivateKeyInfo,
278	kKeyFormat_EncryptedPrivateKeyInfo
279	} enmFormat = kKeyFormat_Unknown;
280	const char *pszDekInfo = NULL;
281	PCRTCRPEMMARKER pMarker = pSection->pMarker;
282	if (pMarker)
283	{
284	if ( pMarker->cWords == 3
285	&& strcmp(pMarker->paWords[0].pszWord, "RSA") == 0
286	&& strcmp(pMarker->paWords[2].pszWord, "KEY") == 0)
287	{
288	if (strcmp(pMarker->paWords[1].pszWord, "PUBLIC") == 0)
289	enmFormat = kKeyFormat_RsaPublicKey;
290	else if (strcmp(pMarker->paWords[1].pszWord, "PRIVATE") == 0)
291	{
292	enmFormat = kKeyFormat_RsaPrivateKey;
293
294	/* RSA PRIVATE KEY encryption is advertised thru PEM header fields.
295	We need the DEK field to decrypt the message (see RFC-1421 4.6.1.3). */
296	for (PCRTCRPEMFIELD pField = pSection->pFieldHead; pField; pField = pField->pNext)
297	{
298	if ( pField->cchName == sizeof("Proc-Type") - 1
299	&& pField->cchValue >= sizeof("4,ENCRYPTED") - 1
300	&& memcmp(pField->szName, RT_STR_TUPLE("Proc-Type")) == 0)
301	{
302	const char *pszValue = pField->pszValue;
303	if (*pszValue == '4')
304	{
305	do
306	pszValue++;
307	while (RT_C_IS_SPACE(pszValue) \|\| RT_C_IS_PUNCT(pszValue));
308	if (strcmp(pszValue, "ENCRYPTED") == 0)
309	enmFormat = kKeyFormat_RsaEncryptedPrivateKey;
310	}
311	}
312	else if ( pField->cchName == sizeof("DEK-Info") - 1
313	&& pField->cchValue > 0
314	&& !pszDekInfo)
315	pszDekInfo = pField->pszValue;
316	}
317	}
318	else
319	AssertFailed();
320	}
321	else if ( pMarker->cWords == 2
322	&& strcmp(pMarker->paWords[1].pszWord, "KEY") == 0)
323	{
324	if (strcmp(pMarker->paWords[0].pszWord, "PUBLIC") == 0)
325	enmFormat = kKeyFormat_SubjectPublicKeyInfo;
326	else if (strcmp(pMarker->paWords[0].pszWord, "PRIVATE") == 0)
327	enmFormat = kKeyFormat_PrivateKeyInfo;
328	else
329	AssertFailed();
330	}
331	else if ( pMarker->cWords == 3
332	&& strcmp(pMarker->paWords[0].pszWord, "ENCRYPTED") == 0
333	&& strcmp(pMarker->paWords[1].pszWord, "PRIVATE") == 0
334	&& strcmp(pMarker->paWords[2].pszWord, "KEY") == 0)
335	enmFormat = kKeyFormat_EncryptedPrivateKeyInfo;
336	else
337	AssertFailed();
338	}
339
340	/*
341	* Try guess the format from the binary data if needed.
342	*/
343	RTASN1CURSORPRIMARY PrimaryCursor;
344	if ( enmFormat == kKeyFormat_Unknown
345	&& pSection->cbData > 10)
346	{
347	RTAsn1CursorInitPrimary(&PrimaryCursor, pSection->pbData, (uint32_t)pSection->cbData,
348	pErrInfo, &g_RTAsn1DefaultAllocator, RTASN1CURSOR_FLAGS_DER, "probing/0");
349
350	/*
351	* First the must be a sequence.
352	*/
353	RTASN1CORE Tag;
354	int rc = RTAsn1CursorReadHdr(&PrimaryCursor.Cursor, &Tag, "#1");
355	if (RT_SUCCESS(rc) && Tag.uTag == ASN1_TAG_SEQUENCE)
356	{
357	RTASN1CURSOR Cursor2;
358	RTAsn1CursorInitSubFromCore(&PrimaryCursor.Cursor, &Tag, &Cursor2, "probing/1");
359	rc = RTAsn1CursorReadHdr(&Cursor2, &Tag, "#2");
360
361	/*
362	* SEQUENCE SubjectPublicKeyInfo.Algorithm?
363	*/
364	if (RT_SUCCESS(rc) && Tag.uTag == ASN1_TAG_SEQUENCE)
365	{
366	RTASN1CURSOR Cursor3;
367	RTAsn1CursorInitSubFromCore(&Cursor2, &Tag, &Cursor3, "probing/2");
368	rc = RTAsn1CursorReadHdr(&Cursor3, &Tag, "#3");
369
370	/* SEQUENCE SubjectPublicKeyInfo.Algorithm.Algorithm? */
371	if (RT_SUCCESS(rc) && Tag.uTag == ASN1_TAG_OID)
372	enmFormat = kKeyFormat_SubjectPublicKeyInfo;
373	}
374	/*
375	* INTEGER PrivateKeyInfo.Version?
376	* INTEGER RsaPublicKey.Modulus?
377	* INTEGER RsaPrivateKey.Version?
378	*/
379	else if (RT_SUCCESS(rc) && Tag.uTag == ASN1_TAG_INTEGER)
380	{
381	rc = RTAsn1CursorReadHdr(RTAsn1CursorSkip(&Cursor2, Tag.cb), &Tag, "#4");
382
383	/* OBJECT PrivateKeyInfo.privateKeyAlgorithm? */
384	if (RT_SUCCESS(rc) && Tag.uTag == ASN1_TAG_OID)
385	enmFormat = kKeyFormat_PrivateKeyInfo;
386	/* INTEGER RsaPublicKey.PublicExponent?
387	INTEGER RsaPrivateKey.Modulus? */
388	else if (RT_SUCCESS(rc) && Tag.uTag == ASN1_TAG_INTEGER)
389	{
390	/* RsaPublicKey.PublicExponent is at the end. */
391	if (RTAsn1CursorIsEnd(&Cursor2))
392	enmFormat = kKeyFormat_RsaPublicKey;
393	else
394	{
395	/* Check for INTEGER RsaPrivateKey.PublicExponent nad PrivateExponent before concluding. */
396	rc = RTAsn1CursorReadHdr(RTAsn1CursorSkip(&Cursor2, Tag.cb), &Tag, "#5");
397	if (RT_SUCCESS(rc) && Tag.uTag == ASN1_TAG_INTEGER)
398	{
399	rc = RTAsn1CursorReadHdr(RTAsn1CursorSkip(&Cursor2, Tag.cb), &Tag, "#6");
400	if (RT_SUCCESS(rc) && Tag.uTag == ASN1_TAG_INTEGER)
401	enmFormat = kKeyFormat_RsaPrivateKey;
402	}
403	}
404	}
405	}
406	}
407	}
408
409	if (enmFormat == kKeyFormat_Unknown)
410	return RTErrInfoSetF(pErrInfo, VERR_CR_KEY_UNKNOWN_TYPE,
411	"Unable to identify the key format (%.*Rhxs)", RT_MIN(16, pSection->cbData), pSection->pbData);
412
413	/*
414	* Do the reading.
415	*/
416	int rc;
417	switch (enmFormat)
418	{
419	case kKeyFormat_RsaPublicKey:
420	rc = rtCrKeyCreateRsaPublic(phKey, pSection->pbData, (uint32_t)pSection->cbData, pErrInfo, pszErrorTag);
421	break;
422
423	case kKeyFormat_RsaPrivateKey:
424	rc = rtCrKeyCreateRsaPrivate(phKey, pSection->pbData, (uint32_t)pSection->cbData, pErrInfo, pszErrorTag);
425	break;
426
427	case kKeyFormat_RsaEncryptedPrivateKey:
428	{
429	uint8_t *pbDecrypted = NULL;
430	size_t cbDecrypted = 0;
431	size_t cbDecryptedAlloced = 0;
432	rc = rtCrKeyDecryptPemMessage(pszDekInfo, pszPassword, pSection->pbData, pSection->cbData,
433	&pbDecrypted, &cbDecrypted, &cbDecryptedAlloced, pErrInfo);
434	if (RT_SUCCESS(rc))
435	{
436	int rc2 = rtCrKeyCreateRsaPrivate(phKey, pbDecrypted, (uint32_t)cbDecrypted, pErrInfo, pszErrorTag);
437	if (rc2 != VINF_SUCCESS)
438	rc = rc2;
439	RTMemSaferFree(pbDecrypted, cbDecryptedAlloced);
440	}
441	break;
442	}
443
444	case kKeyFormat_SubjectPublicKeyInfo:
445	{
446	RTAsn1CursorInitPrimary(&PrimaryCursor, pSection->pbData, (uint32_t)pSection->cbData,
447	pErrInfo, &g_RTAsn1DefaultAllocator, RTASN1CURSOR_FLAGS_DER, pszErrorTag);
448	RTCRX509SUBJECTPUBLICKEYINFO SubjectPubKeyInfo;
449	RT_ZERO(SubjectPubKeyInfo);
450	rc = RTCrX509SubjectPublicKeyInfo_DecodeAsn1(&PrimaryCursor.Cursor, 0, &SubjectPubKeyInfo, "SubjectPubKeyInfo");
451	if (RT_SUCCESS(rc))
452	{
453	rc = RTCrKeyCreateFromSubjectPublicKeyInfo(phKey, &SubjectPubKeyInfo, pErrInfo, pszErrorTag);
454	RTCrX509SubjectPublicKeyInfo_Delete(&SubjectPubKeyInfo);
455	}
456	break;
457	}
458
459	case kKeyFormat_PrivateKeyInfo:
460	rc = RTErrInfoSet(pErrInfo, VERR_CR_KEY_FORMAT_NOT_SUPPORTED,
461	"Support for PKCS#8 PrivateKeyInfo is not yet implemented");
462	break;
463
464	case kKeyFormat_EncryptedPrivateKeyInfo:
465	rc = RTErrInfoSet(pErrInfo, VERR_CR_KEY_FORMAT_NOT_SUPPORTED,
466	"Support for encrypted PKCS#8 PrivateKeyInfo is not yet implemented");
467	break;
468
469	default:
470	AssertFailedStmt(rc = VERR_INTERNAL_ERROR_4);
471	}
472	return rc;
473	}
474
475
476	RTDECL(int) RTCrKeyCreateFromBuffer(PRTCRKEY phKey, uint32_t fFlags, void const pvSrc, size_t cbSrc, const char pszPassword,
477	PRTERRINFO pErrInfo, const char *pszErrorTag)
478	{
479	AssertReturn(!(fFlags & ~RTCRKEYFROM_F_VALID_MASK), VERR_INVALID_FLAGS);
480	PCRTCRPEMSECTION pSectionHead;
481	int rc = RTCrPemParseContent(pvSrc, cbSrc, fFlags, g_aRTCrKeyAllMarkers, g_cRTCrKeyAllMarkers, &pSectionHead, pErrInfo);
482	if (RT_SUCCESS(rc))
483	{
484	if (pSectionHead)
485	{
486	rc = RTCrKeyCreateFromPemSection(phKey, pSectionHead, fFlags & ~RTCRKEYFROM_F_ONLY_PEM, pszPassword,
487	pErrInfo, pszErrorTag);
488	RTCrPemFreeSections(pSectionHead);
489	}
490	else
491	rc = rc != VINF_SUCCESS ? -rc : VERR_INTERNAL_ERROR_2;
492	}
493	return rc;
494	}
495
496
497	RTDECL(int) RTCrKeyCreateFromFile(PRTCRKEY phKey, uint32_t fFlags, const char *pszFilename,
498	const char *pszPassword, PRTERRINFO pErrInfo)
499	{
500	AssertReturn(!(fFlags & ~RTCRKEYFROM_F_VALID_MASK), VERR_INVALID_FLAGS);
501	PCRTCRPEMSECTION pSectionHead;
502	int rc = RTCrPemReadFile(pszFilename, fFlags, g_aRTCrKeyAllMarkers, g_cRTCrKeyAllMarkers, &pSectionHead, pErrInfo);
503	if (RT_SUCCESS(rc))
504	{
505	if (pSectionHead)
506	{
507	rc = RTCrKeyCreateFromPemSection(phKey, pSectionHead, fFlags & ~RTCRKEYFROM_F_ONLY_PEM, pszPassword,
508	pErrInfo, RTPathFilename(pszFilename));
509	RTCrPemFreeSections(pSectionHead);
510	}
511	else
512	rc = rc != VINF_SUCCESS ? -rc : VERR_INTERNAL_ERROR_2;
513	}
514	return rc;
515	}
516

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source: vbox/trunk/src/VBox/Runtime/common/crypto/key-file.cpp@ 78306

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