[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 | /* Pack an object into an OCTET STRING and turn into a safebag */
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| 16 |
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| 17 | PKCS12_SAFEBAG *PKCS12_item_pack_safebag(void *obj, const ASN1_ITEM *it,
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| 18 | int nid1, int nid2)
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| 19 | {
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| 20 | PKCS12_BAGS *bag;
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| 21 | PKCS12_SAFEBAG *safebag;
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| 22 |
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| 23 | if ((bag = PKCS12_BAGS_new()) == NULL) {
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| 24 | PKCS12err(PKCS12_F_PKCS12_ITEM_PACK_SAFEBAG, ERR_R_MALLOC_FAILURE);
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| 25 | return NULL;
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| 26 | }
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| 27 | bag->type = OBJ_nid2obj(nid1);
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| 28 | if (!ASN1_item_pack(obj, it, &bag->value.octet)) {
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| 29 | PKCS12err(PKCS12_F_PKCS12_ITEM_PACK_SAFEBAG, ERR_R_MALLOC_FAILURE);
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| 30 | goto err;
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| 31 | }
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| 32 | if ((safebag = PKCS12_SAFEBAG_new()) == NULL) {
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| 33 | PKCS12err(PKCS12_F_PKCS12_ITEM_PACK_SAFEBAG, ERR_R_MALLOC_FAILURE);
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| 34 | goto err;
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| 35 | }
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| 36 | safebag->value.bag = bag;
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| 37 | safebag->type = OBJ_nid2obj(nid2);
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| 38 | return safebag;
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| 39 |
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| 40 | err:
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| 41 | PKCS12_BAGS_free(bag);
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| 42 | return NULL;
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| 43 | }
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| 44 |
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| 45 | /* Turn a stack of SAFEBAGS into a PKCS#7 data Contentinfo */
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| 46 | PKCS7 *PKCS12_pack_p7data(STACK_OF(PKCS12_SAFEBAG) *sk)
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| 47 | {
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| 48 | PKCS7 *p7;
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| 49 |
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| 50 | if ((p7 = PKCS7_new()) == NULL) {
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| 51 | PKCS12err(PKCS12_F_PKCS12_PACK_P7DATA, ERR_R_MALLOC_FAILURE);
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| 52 | return NULL;
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| 53 | }
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| 54 | p7->type = OBJ_nid2obj(NID_pkcs7_data);
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| 55 | if ((p7->d.data = ASN1_OCTET_STRING_new()) == NULL) {
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| 56 | PKCS12err(PKCS12_F_PKCS12_PACK_P7DATA, ERR_R_MALLOC_FAILURE);
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| 57 | goto err;
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| 58 | }
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| 59 |
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| 60 | if (!ASN1_item_pack(sk, ASN1_ITEM_rptr(PKCS12_SAFEBAGS), &p7->d.data)) {
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| 61 | PKCS12err(PKCS12_F_PKCS12_PACK_P7DATA, PKCS12_R_CANT_PACK_STRUCTURE);
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| 62 | goto err;
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| 63 | }
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| 64 | return p7;
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| 65 |
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| 66 | err:
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| 67 | PKCS7_free(p7);
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| 68 | return NULL;
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| 69 | }
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| 70 |
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| 71 | /* Unpack SAFEBAGS from PKCS#7 data ContentInfo */
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| 72 | STACK_OF(PKCS12_SAFEBAG) *PKCS12_unpack_p7data(PKCS7 *p7)
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| 73 | {
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| 74 | if (!PKCS7_type_is_data(p7)) {
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| 75 | PKCS12err(PKCS12_F_PKCS12_UNPACK_P7DATA,
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| 76 | PKCS12_R_CONTENT_TYPE_NOT_DATA);
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| 77 | return NULL;
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| 78 | }
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| 79 | return ASN1_item_unpack(p7->d.data, ASN1_ITEM_rptr(PKCS12_SAFEBAGS));
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| 80 | }
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| 81 |
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| 82 | /* Turn a stack of SAFEBAGS into a PKCS#7 encrypted data ContentInfo */
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| 83 |
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| 84 | PKCS7 *PKCS12_pack_p7encdata(int pbe_nid, const char *pass, int passlen,
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| 85 | unsigned char *salt, int saltlen, int iter,
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| 86 | STACK_OF(PKCS12_SAFEBAG) *bags)
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| 87 | {
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| 88 | PKCS7 *p7;
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| 89 | X509_ALGOR *pbe;
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| 90 | const EVP_CIPHER *pbe_ciph;
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| 91 |
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| 92 | if ((p7 = PKCS7_new()) == NULL) {
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| 93 | PKCS12err(PKCS12_F_PKCS12_PACK_P7ENCDATA, ERR_R_MALLOC_FAILURE);
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| 94 | return NULL;
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| 95 | }
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| 96 | if (!PKCS7_set_type(p7, NID_pkcs7_encrypted)) {
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| 97 | PKCS12err(PKCS12_F_PKCS12_PACK_P7ENCDATA,
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| 98 | PKCS12_R_ERROR_SETTING_ENCRYPTED_DATA_TYPE);
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| 99 | goto err;
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| 100 | }
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| 101 |
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| 102 | pbe_ciph = EVP_get_cipherbynid(pbe_nid);
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| 103 |
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| 104 | if (pbe_ciph)
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| 105 | pbe = PKCS5_pbe2_set(pbe_ciph, iter, salt, saltlen);
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| 106 | else
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| 107 | pbe = PKCS5_pbe_set(pbe_nid, iter, salt, saltlen);
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| 108 |
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| 109 | if (!pbe) {
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| 110 | PKCS12err(PKCS12_F_PKCS12_PACK_P7ENCDATA, ERR_R_MALLOC_FAILURE);
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| 111 | goto err;
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| 112 | }
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| 113 | X509_ALGOR_free(p7->d.encrypted->enc_data->algorithm);
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| 114 | p7->d.encrypted->enc_data->algorithm = pbe;
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| 115 | ASN1_OCTET_STRING_free(p7->d.encrypted->enc_data->enc_data);
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| 116 | if (!(p7->d.encrypted->enc_data->enc_data =
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| 117 | PKCS12_item_i2d_encrypt(pbe, ASN1_ITEM_rptr(PKCS12_SAFEBAGS), pass,
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| 118 | passlen, bags, 1))) {
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| 119 | PKCS12err(PKCS12_F_PKCS12_PACK_P7ENCDATA, PKCS12_R_ENCRYPT_ERROR);
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| 120 | goto err;
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| 121 | }
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| 122 |
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| 123 | return p7;
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| 124 |
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| 125 | err:
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| 126 | PKCS7_free(p7);
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| 127 | return NULL;
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| 128 | }
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| 129 |
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| 130 | STACK_OF(PKCS12_SAFEBAG) *PKCS12_unpack_p7encdata(PKCS7 *p7, const char *pass,
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| 131 | int passlen)
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| 132 | {
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| 133 | if (!PKCS7_type_is_encrypted(p7))
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| 134 | return NULL;
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| 135 | return PKCS12_item_decrypt_d2i(p7->d.encrypted->enc_data->algorithm,
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| 136 | ASN1_ITEM_rptr(PKCS12_SAFEBAGS),
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| 137 | pass, passlen,
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| 138 | p7->d.encrypted->enc_data->enc_data, 1);
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| 139 | }
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| 140 |
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| 141 | PKCS8_PRIV_KEY_INFO *PKCS12_decrypt_skey(const PKCS12_SAFEBAG *bag,
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| 142 | const char *pass, int passlen)
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| 143 | {
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| 144 | return PKCS8_decrypt(bag->value.shkeybag, pass, passlen);
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| 145 | }
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| 146 |
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| 147 | int PKCS12_pack_authsafes(PKCS12 *p12, STACK_OF(PKCS7) *safes)
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| 148 | {
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| 149 | if (ASN1_item_pack(safes, ASN1_ITEM_rptr(PKCS12_AUTHSAFES),
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| 150 | &p12->authsafes->d.data))
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| 151 | return 1;
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| 152 | return 0;
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| 153 | }
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| 154 |
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| 155 | STACK_OF(PKCS7) *PKCS12_unpack_authsafes(const PKCS12 *p12)
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| 156 | {
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| 157 | if (!PKCS7_type_is_data(p12->authsafes)) {
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| 158 | PKCS12err(PKCS12_F_PKCS12_UNPACK_AUTHSAFES,
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| 159 | PKCS12_R_CONTENT_TYPE_NOT_DATA);
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| 160 | return NULL;
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| 161 | }
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| 162 | return ASN1_item_unpack(p12->authsafes->d.data,
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| 163 | ASN1_ITEM_rptr(PKCS12_AUTHSAFES));
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| 164 | }
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