[thirdparty/openssl.git] / crypto / cms / cms_env.c

/* crypto/cms/cms_env.c */
/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
 * project.
 */
/* ====================================================================
 * Copyright (c) 2008 The OpenSSL Project.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer. 
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. All advertising materials mentioning features or use of this
 *    software must display the following acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
 *
 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
 *    endorse or promote products derived from this software without
 *    prior written permission. For written permission, please contact
 *    licensing@OpenSSL.org.
 *
 * 5. Products derived from this software may not be called "OpenSSL"
 *    nor may "OpenSSL" appear in their names without prior written
 *    permission of the OpenSSL Project.
 *
 * 6. Redistributions of any form whatsoever must retain the following
 *    acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
 *
 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE.
 * ====================================================================
 */

#include "cryptlib.h"
#include <openssl/asn1t.h>
#include <openssl/pem.h>
#include <openssl/x509v3.h>
#include <openssl/err.h>
#include <openssl/cms.h>
#include <openssl/rand.h>
#include "cms_lcl.h"
#include "asn1_locl.h"

/* CMS EnvelopedData Utilities */

DECLARE_ASN1_ITEM(CMS_EnvelopedData)
DECLARE_ASN1_ITEM(CMS_RecipientInfo)
DECLARE_ASN1_ITEM(CMS_KeyTransRecipientInfo)

DECLARE_STACK_OF(CMS_RecipientInfo)

static CMS_EnvelopedData *cms_get0_enveloped(CMS_ContentInfo *cms)
	{
	if (OBJ_obj2nid(cms->contentType) != NID_pkcs7_enveloped)
		{
		CMSerr(CMS_F_CMS_GET0_ENVELOPED,
				CMS_R_CONTENT_TYPE_NOT_ENVELOPED_DATA);
		return NULL;
		}
	return cms->d.envelopedData;
	}

static CMS_EnvelopedData *cms_enveloped_data_init(CMS_ContentInfo *cms)
	{
	if (cms->d.other == NULL)
		{
		cms->d.envelopedData = M_ASN1_new_of(CMS_EnvelopedData);
		if (!cms->d.envelopedData)
			{
			CMSerr(CMS_F_CMS_ENVELOPED_DATA_INIT,
							ERR_R_MALLOC_FAILURE);
			return NULL;
			}
		cms->d.envelopedData->version = 0;
		cms->d.envelopedData->encryptedContentInfo->contentType =
						OBJ_nid2obj(NID_pkcs7_data);
		ASN1_OBJECT_free(cms->contentType);
		cms->contentType = OBJ_nid2obj(NID_pkcs7_enveloped);
		return cms->d.envelopedData;
		}
	return cms_get0_enveloped(cms);
	}

/* Add a recipient certificate. For now only handle key transport.
 * If we ever handle key agreement will need updating.
 */

CMS_RecipientInfo *CMS_add1_recipient_cert(CMS_ContentInfo *cms,
					X509 *recip, unsigned int flags)
	{
	CMS_RecipientInfo *ri = NULL;
	CMS_KeyTransRecipientInfo *ktri;
	CMS_EnvelopedData *env;
	EVP_PKEY *pk = NULL;
	int i, type;
	/* Init enveloped data */
	env = cms_enveloped_data_init(cms);
	if (!env)
		goto err;

	/* Initialized recipient info */
	ri = M_ASN1_new_of(CMS_RecipientInfo);
	if (!ri)
		goto merr;

	/* Initialize and add key transrport recipient info */

	ri->d.ktri = M_ASN1_new_of(CMS_KeyTransRecipientInfo);
	if (!ri->d.ktri)
		goto merr;
	ri->type = CMS_RECIPINFO_TRANS;

	ktri = ri->d.ktri;

	X509_check_purpose(recip, -1, -1);
	pk = X509_get_pubkey(recip);
	if (!pk)
		{
		CMSerr(CMS_F_CMS_ADD1_RECIPIENT_CERT,
				CMS_R_ERROR_GETTING_PUBLIC_KEY);
		goto err;
		}
	CRYPTO_add(&recip->references, 1, CRYPTO_LOCK_X509);
	CRYPTO_add(&pk->references, 1, CRYPTO_LOCK_EVP_PKEY);
	ktri->pkey = pk;
	ktri->recip = recip;

	if (flags & CMS_USE_KEYID)
		{
		ktri->version = 2;
		type = CMS_RECIPINFO_KEYIDENTIFIER;
		}
	else
		{
		ktri->version = 0;
		type = CMS_RECIPINFO_ISSUER_SERIAL;
		}

	/* Not a typo: RecipientIdentifier and SignerIdentifier are the
	 * same structure.
	 */

	if (!cms_set1_SignerIdentifier(ktri->rid, recip, type))
		goto err;

	if (pk->ameth && pk->ameth->pkey_ctrl)
		{
		i = pk->ameth->pkey_ctrl(pk, ASN1_PKEY_CTRL_CMS_ENVELOPE,
						0, ri);
		if (i == -2)
			{
			CMSerr(CMS_F_CMS_ADD1_RECIPIENT_CERT,
				CMS_R_NOT_SUPPORTED_FOR_THIS_KEY_TYPE);
			goto err;
			}
		if (i <= 0)
			{
			CMSerr(CMS_F_CMS_ADD1_RECIPIENT_CERT,
				CMS_R_CTRL_FAILURE);
			goto err;
			}
		}

	if (!sk_CMS_RecipientInfo_push(env->recipientInfos, ri))
		goto merr;

	return ri;

	merr:
	CMSerr(CMS_F_CMS_ADD1_RECIPIENT_CERT, ERR_R_MALLOC_FAILURE);
	err:
	if (ri)
		M_ASN1_free_of(ri, CMS_RecipientInfo);
	return NULL;

	}

int CMS_RecipientInfo_ktri_get0_algs(CMS_RecipientInfo *ri,
					EVP_PKEY **pk, X509 **recip,
					X509_ALGOR **palg)
	{
	CMS_KeyTransRecipientInfo *ktri;
	if (ri->type != CMS_RECIPINFO_TRANS)
		{
		CMSerr(CMS_F_CMS_RECIPIENTINFO_KTRI_GET0_ALGS,
			CMS_R_NOT_KEY_TRANSPORT);
		return 0;
		}

	ktri = ri->d.ktri;

	if (pk)
		*pk = ktri->pkey;
	if (recip)
		*recip = ktri->recip;
	if (palg)
		*palg = ktri->keyEncryptionAlgorithm;
	return 1;
	}

int CMS_RecipientInfo_ktri_get0_signer_id(CMS_RecipientInfo *ri,
					ASN1_OCTET_STRING **keyid,
					X509_NAME **issuer, ASN1_INTEGER **sno)
	{
	CMS_KeyTransRecipientInfo *ktri;
	if (ri->type != CMS_RECIPINFO_TRANS)
		{
		CMSerr(CMS_F_CMS_RECIPIENTINFO_KTRI_GET0_SIGNER_ID,
			CMS_R_NOT_KEY_TRANSPORT);
		return 0;
		}

	return cms_SignerIdentifier_get0_signer_id(ktri->rid,
							keyid, issuer, sno);
	}

int CMS_RecipientInfo_ktri_cert_cmp(CMS_RecipientInfo *ri, X509 *cert)
	{
	CMS_KeyTransRecipientInfo *ktri;
	if (ri->type != CMS_RECIPINFO_TRANS)
		{
		CMSerr(CMS_F_CMS_RECIPIENTINFO_KTRI_CERT_CMP,
			CMS_R_NOT_KEY_TRANSPORT);
		return 0;
		}

	return cms_SignerIdentifier_cert_cmp(ktri->rid, cert);
	}
Commit	Line	Data
8931b30d DSH	1	/* crypto/cms/cms_env.c */
	2	/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
	3	* project.
	4	*/
	5	/* ====================================================================
	6	* Copyright (c) 2008 The OpenSSL Project. All rights reserved.
	7	*
	8	* Redistribution and use in source and binary forms, with or without
	9	* modification, are permitted provided that the following conditions
	10	* are met:
	11	*
	12	* 1. Redistributions of source code must retain the above copyright
	13	* notice, this list of conditions and the following disclaimer.
	14	*
	15	* 2. Redistributions in binary form must reproduce the above copyright
	16	* notice, this list of conditions and the following disclaimer in
	17	* the documentation and/or other materials provided with the
	18	* distribution.
	19	*
	20	* 3. All advertising materials mentioning features or use of this
	21	* software must display the following acknowledgment:
	22	* "This product includes software developed by the OpenSSL Project
	23	* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
	24	*
	25	* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
	26	* endorse or promote products derived from this software without
	27	* prior written permission. For written permission, please contact
	28	* licensing@OpenSSL.org.
	29	*
	30	* 5. Products derived from this software may not be called "OpenSSL"
	31	* nor may "OpenSSL" appear in their names without prior written
	32	* permission of the OpenSSL Project.
	33	*
	34	* 6. Redistributions of any form whatsoever must retain the following
	35	* acknowledgment:
	36	* "This product includes software developed by the OpenSSL Project
	37	* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
	38	*
	39	* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
	40	* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	41	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
	42	* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
	43	* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
	44	* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
	45	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
	46	* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	47	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
	48	* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
	49	* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
	50	* OF THE POSSIBILITY OF SUCH DAMAGE.
	51	* ====================================================================
	52	*/
	53
	54	#include "cryptlib.h"
	55	#include <openssl/asn1t.h>
	56	#include <openssl/pem.h>
	57	#include <openssl/x509v3.h>
	58	#include <openssl/err.h>
	59	#include <openssl/cms.h>
5c4436c9	60	#include <openssl/rand.h>
8931b30d DSH	61	#include "cms_lcl.h"
	62	#include "asn1_locl.h"
	63
	64	/* CMS EnvelopedData Utilities */
	65
	66	DECLARE_ASN1_ITEM(CMS_EnvelopedData)
	67	DECLARE_ASN1_ITEM(CMS_RecipientInfo)
	68	DECLARE_ASN1_ITEM(CMS_KeyTransRecipientInfo)
	69
8931b30d DSH	70	DECLARE_STACK_OF(CMS_RecipientInfo)
	71
	72	static CMS_EnvelopedData cms_get0_enveloped(CMS_ContentInfo cms)
	73	{
	74	if (OBJ_obj2nid(cms->contentType) != NID_pkcs7_enveloped)
	75	{
	76	CMSerr(CMS_F_CMS_GET0_ENVELOPED,
	77	CMS_R_CONTENT_TYPE_NOT_ENVELOPED_DATA);
	78	return NULL;
	79	}
	80	return cms->d.envelopedData;
	81	}
	82
	83	static CMS_EnvelopedData cms_enveloped_data_init(CMS_ContentInfo cms)
	84	{
	85	if (cms->d.other == NULL)
	86	{
	87	cms->d.envelopedData = M_ASN1_new_of(CMS_EnvelopedData);
	88	if (!cms->d.envelopedData)
	89	{
	90	CMSerr(CMS_F_CMS_ENVELOPED_DATA_INIT,
	91	ERR_R_MALLOC_FAILURE);
	92	return NULL;
	93	}
	94	cms->d.envelopedData->version = 0;
	95	cms->d.envelopedData->encryptedContentInfo->contentType =
	96	OBJ_nid2obj(NID_pkcs7_data);
	97	ASN1_OBJECT_free(cms->contentType);
	98	cms->contentType = OBJ_nid2obj(NID_pkcs7_enveloped);
	99	return cms->d.envelopedData;
	100	}
	101	return cms_get0_enveloped(cms);
	102	}
	103
	104	/* Add a recipient certificate. For now only handle key transport.
	105	* If we ever handle key agreement will need updating.
	106	*/
	107
	108	CMS_RecipientInfo CMS_add1_recipient_cert(CMS_ContentInfo cms,
	109	X509 *recip, unsigned int flags)
	110	{
	111	CMS_RecipientInfo *ri = NULL;
	112	CMS_KeyTransRecipientInfo *ktri;
	113	CMS_EnvelopedData *env;
	114	EVP_PKEY *pk = NULL;
	115	int i, type;
	116	/* Init enveloped data */
	117	env = cms_enveloped_data_init(cms);
	118	if (!env)
	119	goto err;
	120
	121	/* Initialized recipient info */
	122	ri = M_ASN1_new_of(CMS_RecipientInfo);
	123	if (!ri)
	124	goto merr;
	125
	126	/* Initialize and add key transrport recipient info */
	127
	128	ri->d.ktri = M_ASN1_new_of(CMS_KeyTransRecipientInfo);
	129	if (!ri->d.ktri)
	130	goto merr;
	131	ri->type = CMS_RECIPINFO_TRANS;
	132
	133	ktri = ri->d.ktri;
134
135	X509_check_purpose(recip, -1, -1);
136	pk = X509_get_pubkey(recip);
137	if (!pk)
138	{
139	CMSerr(CMS_F_CMS_ADD1_RECIPIENT_CERT,
140	CMS_R_ERROR_GETTING_PUBLIC_KEY);
141	goto err;
142	}
143	CRYPTO_add(&recip->references, 1, CRYPTO_LOCK_X509);
144	CRYPTO_add(&pk->references, 1, CRYPTO_LOCK_EVP_PKEY);
145	ktri->pkey = pk;
146	ktri->recip = recip;
147
148	if (flags & CMS_USE_KEYID)
149	{
150	ktri->version = 2;
151	type = CMS_RECIPINFO_KEYIDENTIFIER;
152	}
153	else
154	{
155	ktri->version = 0;
156	type = CMS_RECIPINFO_ISSUER_SERIAL;
157	}
158
159	/* Not a typo: RecipientIdentifier and SignerIdentifier are the
160	* same structure.
161	*/
162
163	if (!cms_set1_SignerIdentifier(ktri->rid, recip, type))
164	goto err;
165
166	if (pk->ameth && pk->ameth->pkey_ctrl)
167	{
168	i = pk->ameth->pkey_ctrl(pk, ASN1_PKEY_CTRL_CMS_ENVELOPE,
169	0, ri);
170	if (i == -2)
171	{
172	CMSerr(CMS_F_CMS_ADD1_RECIPIENT_CERT,
173	CMS_R_NOT_SUPPORTED_FOR_THIS_KEY_TYPE);
174	goto err;
175	}
176	if (i <= 0)
177	{
178	CMSerr(CMS_F_CMS_ADD1_RECIPIENT_CERT,
179	CMS_R_CTRL_FAILURE);
180	goto err;
181	}
182	}
183
184	if (!sk_CMS_RecipientInfo_push(env->recipientInfos, ri))
185	goto merr;
186
187	return ri;
188
189	merr:
190	CMSerr(CMS_F_CMS_ADD1_RECIPIENT_CERT, ERR_R_MALLOC_FAILURE);
191	err:
192	if (ri)
193	M_ASN1_free_of(ri, CMS_RecipientInfo);
194	return NULL;
195
196	}
197
198	int CMS_RecipientInfo_ktri_get0_algs(CMS_RecipientInfo *ri,
199	EVP_PKEY pk, X509 recip,
200	X509_ALGOR **palg)
201	{
202	CMS_KeyTransRecipientInfo *ktri;
203	if (ri->type != CMS_RECIPINFO_TRANS)
204	{
205	CMSerr(CMS_F_CMS_RECIPIENTINFO_KTRI_GET0_ALGS,
206	CMS_R_NOT_KEY_TRANSPORT);
207	return 0;
208	}
209
210	ktri = ri->d.ktri;
211
212	if (pk)
213	*pk = ktri->pkey;
214	if (recip)
215	*recip = ktri->recip;
216	if (palg)
217	*palg = ktri->keyEncryptionAlgorithm;
218	return 1;
219	}
220
221	int CMS_RecipientInfo_ktri_get0_signer_id(CMS_RecipientInfo *ri,
222	ASN1_OCTET_STRING **keyid,
223	X509_NAME issuer, ASN1_INTEGER sno)
224	{
225	CMS_KeyTransRecipientInfo *ktri;
226	if (ri->type != CMS_RECIPINFO_TRANS)
227	{
228	CMSerr(CMS_F_CMS_RECIPIENTINFO_KTRI_GET0_SIGNER_ID,
229	CMS_R_NOT_KEY_TRANSPORT);
230	return 0;
231	}
232
233	return cms_SignerIdentifier_get0_signer_id(ktri->rid,
234	keyid, issuer, sno);
235	}
236
237	int CMS_RecipientInfo_ktri_cert_cmp(CMS_RecipientInfo ri, X509 cert)
238	{
239	CMS_KeyTransRecipientInfo *ktri;
240	if (ri->type != CMS_RECIPINFO_TRANS)
241	{
242	CMSerr(CMS_F_CMS_RECIPIENTINFO_KTRI_CERT_CMP,
243	CMS_R_NOT_KEY_TRANSPORT);
244	return 0;
245	}
246
247	return cms_SignerIdentifier_cert_cmp(ktri->rid, cert);
248	}