[331] | 1 | /*
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| 2 | * Copyright 1999-2016 The OpenSSL Project Authors. All Rights Reserved.
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| 3 | *
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| 4 | * Licensed under the OpenSSL license (the "License"). You may not use
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| 5 | * this file except in compliance with the License. You can obtain a copy
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| 6 | * in the file LICENSE in the source distribution or at
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| 7 | * https://www.openssl.org/source/license.html
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| 8 | */
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| 9 |
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| 10 | #include <stdio.h>
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| 11 | #include "internal/cryptlib.h"
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| 12 | #include <openssl/pkcs12.h>
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| 13 | #include "p12_lcl.h"
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| 14 |
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| 15 | static int pkcs12_add_bag(STACK_OF(PKCS12_SAFEBAG) **pbags,
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| 16 | PKCS12_SAFEBAG *bag);
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| 17 |
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| 18 | static int copy_bag_attr(PKCS12_SAFEBAG *bag, EVP_PKEY *pkey, int nid)
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| 19 | {
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| 20 | int idx;
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| 21 | X509_ATTRIBUTE *attr;
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| 22 | idx = EVP_PKEY_get_attr_by_NID(pkey, nid, -1);
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| 23 | if (idx < 0)
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| 24 | return 1;
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| 25 | attr = EVP_PKEY_get_attr(pkey, idx);
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| 26 | if (!X509at_add1_attr(&bag->attrib, attr))
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| 27 | return 0;
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| 28 | return 1;
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| 29 | }
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| 30 |
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| 31 | PKCS12 *PKCS12_create(const char *pass, const char *name, EVP_PKEY *pkey, X509 *cert,
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| 32 | STACK_OF(X509) *ca, int nid_key, int nid_cert, int iter,
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| 33 | int mac_iter, int keytype)
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| 34 | {
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| 35 | PKCS12 *p12 = NULL;
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| 36 | STACK_OF(PKCS7) *safes = NULL;
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| 37 | STACK_OF(PKCS12_SAFEBAG) *bags = NULL;
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| 38 | PKCS12_SAFEBAG *bag = NULL;
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| 39 | int i;
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| 40 | unsigned char keyid[EVP_MAX_MD_SIZE];
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| 41 | unsigned int keyidlen = 0;
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| 42 |
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| 43 | /* Set defaults */
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| 44 | if (!nid_cert)
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| 45 | #ifdef OPENSSL_NO_RC2
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| 46 | nid_cert = NID_pbe_WithSHA1And3_Key_TripleDES_CBC;
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| 47 | #else
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| 48 | nid_cert = NID_pbe_WithSHA1And40BitRC2_CBC;
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| 49 | #endif
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| 50 | if (!nid_key)
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| 51 | nid_key = NID_pbe_WithSHA1And3_Key_TripleDES_CBC;
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| 52 | if (!iter)
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| 53 | iter = PKCS12_DEFAULT_ITER;
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| 54 | if (!mac_iter)
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| 55 | mac_iter = 1;
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| 56 |
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| 57 | if (!pkey && !cert && !ca) {
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| 58 | PKCS12err(PKCS12_F_PKCS12_CREATE, PKCS12_R_INVALID_NULL_ARGUMENT);
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| 59 | return NULL;
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| 60 | }
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| 61 |
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| 62 | if (pkey && cert) {
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| 63 | if (!X509_check_private_key(cert, pkey))
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| 64 | return NULL;
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| 65 | X509_digest(cert, EVP_sha1(), keyid, &keyidlen);
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| 66 | }
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| 67 |
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| 68 | if (cert) {
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| 69 | bag = PKCS12_add_cert(&bags, cert);
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| 70 | if (name && !PKCS12_add_friendlyname(bag, name, -1))
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| 71 | goto err;
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| 72 | if (keyidlen && !PKCS12_add_localkeyid(bag, keyid, keyidlen))
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| 73 | goto err;
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| 74 | }
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| 75 |
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| 76 | /* Add all other certificates */
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| 77 | for (i = 0; i < sk_X509_num(ca); i++) {
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| 78 | if (!PKCS12_add_cert(&bags, sk_X509_value(ca, i)))
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| 79 | goto err;
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| 80 | }
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| 81 |
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| 82 | if (bags && !PKCS12_add_safe(&safes, bags, nid_cert, iter, pass))
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| 83 | goto err;
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| 84 |
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| 85 | sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free);
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| 86 | bags = NULL;
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| 87 |
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| 88 | if (pkey) {
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| 89 | bag = PKCS12_add_key(&bags, pkey, keytype, iter, nid_key, pass);
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| 90 |
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| 91 | if (!bag)
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| 92 | goto err;
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| 93 |
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| 94 | if (!copy_bag_attr(bag, pkey, NID_ms_csp_name))
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| 95 | goto err;
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| 96 | if (!copy_bag_attr(bag, pkey, NID_LocalKeySet))
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| 97 | goto err;
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| 98 |
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| 99 | if (name && !PKCS12_add_friendlyname(bag, name, -1))
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| 100 | goto err;
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| 101 | if (keyidlen && !PKCS12_add_localkeyid(bag, keyid, keyidlen))
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| 102 | goto err;
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| 103 | }
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| 104 |
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| 105 | if (bags && !PKCS12_add_safe(&safes, bags, -1, 0, NULL))
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| 106 | goto err;
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| 107 |
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| 108 | sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free);
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| 109 | bags = NULL;
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| 110 |
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| 111 | p12 = PKCS12_add_safes(safes, 0);
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| 112 |
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| 113 | if (!p12)
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| 114 | goto err;
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| 115 |
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| 116 | sk_PKCS7_pop_free(safes, PKCS7_free);
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| 117 |
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| 118 | safes = NULL;
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| 119 |
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| 120 | if ((mac_iter != -1) &&
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| 121 | !PKCS12_set_mac(p12, pass, -1, NULL, 0, mac_iter, NULL))
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| 122 | goto err;
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| 123 |
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| 124 | return p12;
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| 125 |
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| 126 | err:
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| 127 | PKCS12_free(p12);
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| 128 | sk_PKCS7_pop_free(safes, PKCS7_free);
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| 129 | sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free);
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| 130 | return NULL;
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| 131 |
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| 132 | }
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| 133 |
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| 134 | PKCS12_SAFEBAG *PKCS12_add_cert(STACK_OF(PKCS12_SAFEBAG) **pbags, X509 *cert)
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| 135 | {
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| 136 | PKCS12_SAFEBAG *bag = NULL;
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| 137 | char *name;
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| 138 | int namelen = -1;
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| 139 | unsigned char *keyid;
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| 140 | int keyidlen = -1;
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| 141 |
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| 142 | /* Add user certificate */
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| 143 | if ((bag = PKCS12_SAFEBAG_create_cert(cert)) == NULL)
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| 144 | goto err;
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| 145 |
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| 146 | /*
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| 147 | * Use friendlyName and localKeyID in certificate. (if present)
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| 148 | */
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| 149 |
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| 150 | name = (char *)X509_alias_get0(cert, &namelen);
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| 151 |
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| 152 | if (name && !PKCS12_add_friendlyname(bag, name, namelen))
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| 153 | goto err;
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| 154 |
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| 155 | keyid = X509_keyid_get0(cert, &keyidlen);
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| 156 |
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| 157 | if (keyid && !PKCS12_add_localkeyid(bag, keyid, keyidlen))
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| 158 | goto err;
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| 159 |
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| 160 | if (!pkcs12_add_bag(pbags, bag))
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| 161 | goto err;
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| 162 |
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| 163 | return bag;
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| 164 |
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| 165 | err:
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| 166 | PKCS12_SAFEBAG_free(bag);
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| 167 | return NULL;
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| 168 |
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| 169 | }
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| 170 |
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| 171 | PKCS12_SAFEBAG *PKCS12_add_key(STACK_OF(PKCS12_SAFEBAG) **pbags,
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| 172 | EVP_PKEY *key, int key_usage, int iter,
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| 173 | int nid_key, const char *pass)
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| 174 | {
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| 175 |
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| 176 | PKCS12_SAFEBAG *bag = NULL;
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| 177 | PKCS8_PRIV_KEY_INFO *p8 = NULL;
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| 178 |
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| 179 | /* Make a PKCS#8 structure */
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| 180 | if ((p8 = EVP_PKEY2PKCS8(key)) == NULL)
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| 181 | goto err;
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| 182 | if (key_usage && !PKCS8_add_keyusage(p8, key_usage))
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| 183 | goto err;
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| 184 | if (nid_key != -1) {
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| 185 | bag = PKCS12_SAFEBAG_create_pkcs8_encrypt(nid_key, pass, -1, NULL, 0,
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| 186 | iter, p8);
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| 187 | PKCS8_PRIV_KEY_INFO_free(p8);
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| 188 | } else
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| 189 | bag = PKCS12_SAFEBAG_create0_p8inf(p8);
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| 190 |
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| 191 | if (!bag)
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| 192 | goto err;
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| 193 |
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| 194 | if (!pkcs12_add_bag(pbags, bag))
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| 195 | goto err;
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| 196 |
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| 197 | return bag;
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| 198 |
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| 199 | err:
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| 200 | PKCS12_SAFEBAG_free(bag);
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| 201 | return NULL;
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| 202 |
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| 203 | }
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| 204 |
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| 205 | int PKCS12_add_safe(STACK_OF(PKCS7) **psafes, STACK_OF(PKCS12_SAFEBAG) *bags,
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| 206 | int nid_safe, int iter, const char *pass)
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| 207 | {
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| 208 | PKCS7 *p7 = NULL;
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| 209 | int free_safes = 0;
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| 210 |
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| 211 | if (!*psafes) {
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| 212 | *psafes = sk_PKCS7_new_null();
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| 213 | if (!*psafes)
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| 214 | return 0;
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| 215 | free_safes = 1;
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| 216 | } else
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| 217 | free_safes = 0;
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| 218 |
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| 219 | if (nid_safe == 0)
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| 220 | #ifdef OPENSSL_NO_RC2
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| 221 | nid_safe = NID_pbe_WithSHA1And3_Key_TripleDES_CBC;
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| 222 | #else
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| 223 | nid_safe = NID_pbe_WithSHA1And40BitRC2_CBC;
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| 224 | #endif
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| 225 |
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| 226 | if (nid_safe == -1)
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| 227 | p7 = PKCS12_pack_p7data(bags);
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| 228 | else
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| 229 | p7 = PKCS12_pack_p7encdata(nid_safe, pass, -1, NULL, 0, iter, bags);
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| 230 | if (!p7)
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| 231 | goto err;
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| 232 |
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| 233 | if (!sk_PKCS7_push(*psafes, p7))
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| 234 | goto err;
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| 235 |
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| 236 | return 1;
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| 237 |
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| 238 | err:
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| 239 | if (free_safes) {
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| 240 | sk_PKCS7_free(*psafes);
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| 241 | *psafes = NULL;
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| 242 | }
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| 243 | PKCS7_free(p7);
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| 244 | return 0;
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| 245 |
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| 246 | }
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| 247 |
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| 248 | static int pkcs12_add_bag(STACK_OF(PKCS12_SAFEBAG) **pbags,
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| 249 | PKCS12_SAFEBAG *bag)
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| 250 | {
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| 251 | int free_bags;
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| 252 | if (!pbags)
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| 253 | return 1;
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| 254 | if (!*pbags) {
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| 255 | *pbags = sk_PKCS12_SAFEBAG_new_null();
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| 256 | if (!*pbags)
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| 257 | return 0;
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| 258 | free_bags = 1;
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| 259 | } else
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| 260 | free_bags = 0;
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| 261 |
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| 262 | if (!sk_PKCS12_SAFEBAG_push(*pbags, bag)) {
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| 263 | if (free_bags) {
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| 264 | sk_PKCS12_SAFEBAG_free(*pbags);
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| 265 | *pbags = NULL;
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| 266 | }
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| 267 | return 0;
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| 268 | }
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| 269 |
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| 270 | return 1;
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| 271 |
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| 272 | }
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| 273 |
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| 274 | PKCS12 *PKCS12_add_safes(STACK_OF(PKCS7) *safes, int nid_p7)
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| 275 | {
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| 276 | PKCS12 *p12;
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| 277 | if (nid_p7 <= 0)
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| 278 | nid_p7 = NID_pkcs7_data;
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| 279 | p12 = PKCS12_init(nid_p7);
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| 280 |
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| 281 | if (!p12)
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| 282 | return NULL;
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| 283 |
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| 284 | if (!PKCS12_pack_authsafes(p12, safes)) {
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| 285 | PKCS12_free(p12);
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| 286 | return NULL;
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| 287 | }
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| 288 |
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| 289 | return p12;
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| 290 |
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| 291 | }
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