crypto/pkcs12/p12_add.c

   1 /*
   2  * Copyright 1999-2020 The OpenSSL Project Authors. All Rights Reserved.
   3  *
   4  * Licensed under the Apache License 2.0 (the "License").  You may not use
   5  * this file except in compliance with the License.  You can obtain a copy
   6  * in the file LICENSE in the source distribution or at
   7  * https://www.openssl.org/source/license.html
   8  */
   9
  10 #include <stdio.h>
  11 #include "internal/cryptlib.h"
  12 #include <openssl/pkcs12.h>
  13 #include "p12_local.h"
  14
  15 /* Pack an object into an OCTET STRING and turn into a safebag */
  16
  17 PKCS12_SAFEBAG *PKCS12_item_pack_safebag(void *obj, const ASN1_ITEM *it,
  18                                          int nid1, int nid2)
  19 {
  20     PKCS12_BAGS *bag;
  21     PKCS12_SAFEBAG *safebag;
  22
  23     if ((bag = PKCS12_BAGS_new()) == NULL) {
  24         ERR_raise(ERR_LIB_PKCS12, ERR_R_MALLOC_FAILURE);
  25         return NULL;
  26     }
  27     bag->type = OBJ_nid2obj(nid1);
  28     if (!ASN1_item_pack(obj, it, &bag->value.octet)) {
  29         ERR_raise(ERR_LIB_PKCS12, ERR_R_MALLOC_FAILURE);
  30         goto err;
  31     }
  32     if ((safebag = PKCS12_SAFEBAG_new()) == NULL) {
  33         ERR_raise(ERR_LIB_PKCS12, ERR_R_MALLOC_FAILURE);
  34         goto err;
  35     }
  36     safebag->value.bag = bag;
  37     safebag->type = OBJ_nid2obj(nid2);
  38     return safebag;
  39
  40  err:
  41     PKCS12_BAGS_free(bag);
  42     return NULL;
  43 }
  44
  45 /* Turn a stack of SAFEBAGS into a PKCS#7 data Contentinfo */
  46 PKCS7 *PKCS12_pack_p7data(STACK_OF(PKCS12_SAFEBAG) *sk)
  47 {
  48     PKCS7 *p7;
  49
  50     if ((p7 = PKCS7_new()) == NULL) {
  51         ERR_raise(ERR_LIB_PKCS12, ERR_R_MALLOC_FAILURE);
  52         return NULL;
  53     }
  54     p7->type = OBJ_nid2obj(NID_pkcs7_data);
  55     if ((p7->d.data = ASN1_OCTET_STRING_new()) == NULL) {
  56         ERR_raise(ERR_LIB_PKCS12, ERR_R_MALLOC_FAILURE);
  57         goto err;
  58     }
  59
  60     if (!ASN1_item_pack(sk, ASN1_ITEM_rptr(PKCS12_SAFEBAGS), &p7->d.data)) {
  61         ERR_raise(ERR_LIB_PKCS12, PKCS12_R_CANT_PACK_STRUCTURE);
  62         goto err;
  63     }
  64     return p7;
  65
  66  err:
  67     PKCS7_free(p7);
  68     return NULL;
  69 }
  70
  71 /* Unpack SAFEBAGS from PKCS#7 data ContentInfo */
  72 STACK_OF(PKCS12_SAFEBAG) *PKCS12_unpack_p7data(PKCS7 *p7)
  73 {
  74     if (!PKCS7_type_is_data(p7)) {
  75         ERR_raise(ERR_LIB_PKCS12, PKCS12_R_CONTENT_TYPE_NOT_DATA);
  76         return NULL;
  77     }
  78     return ASN1_item_unpack(p7->d.data, ASN1_ITEM_rptr(PKCS12_SAFEBAGS));
  79 }
  80
  81 /* Turn a stack of SAFEBAGS into a PKCS#7 encrypted data ContentInfo */
  82
  83 PKCS7 *PKCS12_pack_p7encdata(int pbe_nid, const char *pass, int passlen,
  84                              unsigned char *salt, int saltlen, int iter,
  85                              STACK_OF(PKCS12_SAFEBAG) *bags)
  86 {
  87     PKCS7 *p7;
  88     X509_ALGOR *pbe;
  89     const EVP_CIPHER *pbe_ciph;
  90
  91     if ((p7 = PKCS7_new()) == NULL) {
  92         ERR_raise(ERR_LIB_PKCS12, ERR_R_MALLOC_FAILURE);
  93         return NULL;
  94     }
  95     if (!PKCS7_set_type(p7, NID_pkcs7_encrypted)) {
  96         ERR_raise(ERR_LIB_PKCS12, PKCS12_R_ERROR_SETTING_ENCRYPTED_DATA_TYPE);
  97         goto err;
  98     }
  99
 100     pbe_ciph = EVP_get_cipherbynid(pbe_nid);
 101
 102     if (pbe_ciph)
 103         pbe = PKCS5_pbe2_set(pbe_ciph, iter, salt, saltlen);
 104     else
 105         pbe = PKCS5_pbe_set(pbe_nid, iter, salt, saltlen);
 106
 107     if (pbe == NULL) {
 108         ERR_raise(ERR_LIB_PKCS12, ERR_R_MALLOC_FAILURE);
 109         goto err;
 110     }
 111     X509_ALGOR_free(p7->d.encrypted->enc_data->algorithm);
 112     p7->d.encrypted->enc_data->algorithm = pbe;
 113     ASN1_OCTET_STRING_free(p7->d.encrypted->enc_data->enc_data);
 114     if (!(p7->d.encrypted->enc_data->enc_data =
 115           PKCS12_item_i2d_encrypt(pbe, ASN1_ITEM_rptr(PKCS12_SAFEBAGS), pass,
 116                                   passlen, bags, 1))) {
 117         ERR_raise(ERR_LIB_PKCS12, PKCS12_R_ENCRYPT_ERROR);
 118         goto err;
 119     }
 120
 121     return p7;
 122
 123  err:
 124     PKCS7_free(p7);
 125     return NULL;
 126 }
 127
 128 STACK_OF(PKCS12_SAFEBAG) *PKCS12_unpack_p7encdata(PKCS7 *p7, const char *pass,
 129                                                   int passlen)
 130 {
 131     if (!PKCS7_type_is_encrypted(p7))
 132         return NULL;
 133     return PKCS12_item_decrypt_d2i(p7->d.encrypted->enc_data->algorithm,
 134                                    ASN1_ITEM_rptr(PKCS12_SAFEBAGS),
 135                                    pass, passlen,
 136                                    p7->d.encrypted->enc_data->enc_data, 1);
 137 }
 138
 139 PKCS8_PRIV_KEY_INFO *PKCS12_decrypt_skey(const PKCS12_SAFEBAG *bag,
 140                                          const char *pass, int passlen)
 141 {
 142     return PKCS8_decrypt(bag->value.shkeybag, pass, passlen);
 143 }
 144
 145 int PKCS12_pack_authsafes(PKCS12 *p12, STACK_OF(PKCS7) *safes)
 146 {
 147     if (ASN1_item_pack(safes, ASN1_ITEM_rptr(PKCS12_AUTHSAFES),
 148                        &p12->authsafes->d.data))
 149         return 1;
 150     return 0;
 151 }
 152
 153 STACK_OF(PKCS7) *PKCS12_unpack_authsafes(const PKCS12 *p12)
 154 {
 155     if (!PKCS7_type_is_data(p12->authsafes)) {
 156         ERR_raise(ERR_LIB_PKCS12, PKCS12_R_CONTENT_TYPE_NOT_DATA);
 157         return NULL;
 158     }
 159     return ASN1_item_unpack(p12->authsafes->d.data,
 160                             ASN1_ITEM_rptr(PKCS12_AUTHSAFES));
 161 }