1 /* $OpenBSD: p12_add.c,v 1.25 2024/03/02 10:20:27 tb Exp $ */
2 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
3 * project 1999.
4 */
5 /* ====================================================================
6 * Copyright (c) 1999 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 * This product includes cryptographic software written by Eric Young
54 * (eay@cryptsoft.com). This product includes software written by Tim
55 * Hudson (tjh@cryptsoft.com).
56 *
57 */
58
59 #include <stdio.h>
60
61 #include <openssl/err.h>
62 #include <openssl/pkcs12.h>
63
64 #include "pkcs12_local.h"
65 #include "x509_local.h"
66
67 /* Pack an object into an OCTET STRING and turn into a safebag */
68
69 PKCS12_SAFEBAG *
PKCS12_item_pack_safebag(void * obj,const ASN1_ITEM * it,int nid1,int nid2)70 PKCS12_item_pack_safebag(void *obj, const ASN1_ITEM *it, int nid1, int nid2)
71 {
72 PKCS12_BAGS *bag;
73 PKCS12_SAFEBAG *safebag;
74
75 if (!(bag = PKCS12_BAGS_new())) {
76 PKCS12error(ERR_R_MALLOC_FAILURE);
77 return NULL;
78 }
79 bag->type = OBJ_nid2obj(nid1);
80 if (!ASN1_item_pack(obj, it, &bag->value.octet)) {
81 PKCS12error(ERR_R_MALLOC_FAILURE);
82 PKCS12_BAGS_free(bag);
83 return NULL;
84 }
85 if (!(safebag = PKCS12_SAFEBAG_new())) {
86 PKCS12error(ERR_R_MALLOC_FAILURE);
87 PKCS12_BAGS_free(bag);
88 return NULL;
89 }
90 safebag->value.bag = bag;
91 safebag->type = OBJ_nid2obj(nid2);
92 return safebag;
93 }
94
95 /* Turn a stack of SAFEBAGS into a PKCS#7 data Contentinfo */
96 PKCS7 *
PKCS12_pack_p7data(STACK_OF (PKCS12_SAFEBAG)* sk)97 PKCS12_pack_p7data(STACK_OF(PKCS12_SAFEBAG) *sk)
98 {
99 PKCS7 *p7;
100
101 if (!(p7 = PKCS7_new())) {
102 PKCS12error(ERR_R_MALLOC_FAILURE);
103 return NULL;
104 }
105 p7->type = OBJ_nid2obj(NID_pkcs7_data);
106 if (!(p7->d.data = ASN1_OCTET_STRING_new())) {
107 PKCS12error(ERR_R_MALLOC_FAILURE);
108 goto err;
109 }
110
111 if (!ASN1_item_pack(sk, &PKCS12_SAFEBAGS_it, &p7->d.data)) {
112 PKCS12error(PKCS12_R_CANT_PACK_STRUCTURE);
113 goto err;
114 }
115 return p7;
116
117 err:
118 PKCS7_free(p7);
119 return NULL;
120 }
121
122 /* Unpack SAFEBAGS from PKCS#7 data ContentInfo */
STACK_OF(PKCS12_SAFEBAG)123 STACK_OF(PKCS12_SAFEBAG) *
124 PKCS12_unpack_p7data(PKCS7 *p7)
125 {
126 ASN1_OCTET_STRING *aos;
127
128 if (!PKCS7_type_is_data(p7)) {
129 PKCS12error(PKCS12_R_CONTENT_TYPE_NOT_DATA);
130 return NULL;
131 }
132 if ((aos = PKCS7_get_octet_string(p7)) == NULL)
133 return NULL;
134 return ASN1_item_unpack(aos, &PKCS12_SAFEBAGS_it);
135 }
136 LCRYPTO_ALIAS(PKCS12_unpack_p7data);
137
138 /* Turn a stack of SAFEBAGS into a PKCS#7 encrypted data ContentInfo */
139
140 PKCS7 *
PKCS12_pack_p7encdata(int pbe_nid,const char * pass,int passlen,unsigned char * salt,int saltlen,int iter,STACK_OF (PKCS12_SAFEBAG)* bags)141 PKCS12_pack_p7encdata(int pbe_nid, const char *pass, int passlen,
142 unsigned char *salt, int saltlen, int iter, STACK_OF(PKCS12_SAFEBAG) *bags)
143 {
144 PKCS7 *p7;
145 X509_ALGOR *pbe;
146 const EVP_CIPHER *pbe_ciph;
147
148 if (!(p7 = PKCS7_new())) {
149 PKCS12error(ERR_R_MALLOC_FAILURE);
150 return NULL;
151 }
152 if (!PKCS7_set_type(p7, NID_pkcs7_encrypted)) {
153 PKCS12error(PKCS12_R_ERROR_SETTING_ENCRYPTED_DATA_TYPE);
154 goto err;
155 }
156
157 pbe_ciph = EVP_get_cipherbynid(pbe_nid);
158
159 if (pbe_ciph)
160 pbe = PKCS5_pbe2_set(pbe_ciph, iter, salt, saltlen);
161 else
162 pbe = PKCS5_pbe_set(pbe_nid, iter, salt, saltlen);
163
164 if (!pbe) {
165 PKCS12error(ERR_R_MALLOC_FAILURE);
166 goto err;
167 }
168 X509_ALGOR_free(p7->d.encrypted->enc_data->algorithm);
169 p7->d.encrypted->enc_data->algorithm = pbe;
170 ASN1_OCTET_STRING_free(p7->d.encrypted->enc_data->enc_data);
171 if (!(p7->d.encrypted->enc_data->enc_data = PKCS12_item_i2d_encrypt(
172 pbe, &PKCS12_SAFEBAGS_it, pass, passlen, bags, 1))) {
173 PKCS12error(PKCS12_R_ENCRYPT_ERROR);
174 goto err;
175 }
176
177 return p7;
178
179 err:
180 PKCS7_free(p7);
181 return NULL;
182 }
183
STACK_OF(PKCS12_SAFEBAG)184 STACK_OF(PKCS12_SAFEBAG) *
185 PKCS12_unpack_p7encdata(PKCS7 *p7, const char *pass, int passlen)
186 {
187 PKCS7_ENC_CONTENT *content;
188
189 if (!PKCS7_type_is_encrypted(p7))
190 return NULL;
191 if (p7->d.encrypted == NULL)
192 return NULL;
193 if ((content = p7->d.encrypted->enc_data) == NULL)
194 return NULL;
195 return PKCS12_item_decrypt_d2i(content->algorithm, &PKCS12_SAFEBAGS_it,
196 pass, passlen, content->enc_data, 1);
197 }
198 LCRYPTO_ALIAS(PKCS12_unpack_p7encdata);
199
200 PKCS8_PRIV_KEY_INFO *
PKCS12_decrypt_skey(const PKCS12_SAFEBAG * bag,const char * pass,int passlen)201 PKCS12_decrypt_skey(const PKCS12_SAFEBAG *bag, const char *pass, int passlen)
202 {
203 return PKCS8_decrypt(bag->value.shkeybag, pass, passlen);
204 }
205 LCRYPTO_ALIAS(PKCS12_decrypt_skey);
206
207 int
PKCS12_pack_authsafes(PKCS12 * p12,STACK_OF (PKCS7)* safes)208 PKCS12_pack_authsafes(PKCS12 *p12, STACK_OF(PKCS7) *safes)
209 {
210 if (ASN1_item_pack(safes, &PKCS12_AUTHSAFES_it,
211 &p12->authsafes->d.data))
212 return 1;
213 return 0;
214 }
215
STACK_OF(PKCS7)216 STACK_OF(PKCS7) *
217 PKCS12_unpack_authsafes(const PKCS12 *p12)
218 {
219 ASN1_OCTET_STRING *aos;
220
221 if (!PKCS7_type_is_data(p12->authsafes)) {
222 PKCS12error(PKCS12_R_CONTENT_TYPE_NOT_DATA);
223 return NULL;
224 }
225 if ((aos = PKCS7_get_octet_string(p12->authsafes)) == NULL)
226 return NULL;
227 return ASN1_item_unpack(aos, &PKCS12_AUTHSAFES_it);
228 }
229 LCRYPTO_ALIAS(PKCS12_unpack_authsafes);
230