1 /* 2 * Copyright 1999-2016 The OpenSSL Project Authors. All Rights Reserved. 3 * 4 * Licensed under the OpenSSL license (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 PKCS12err(PKCS12_F_PKCS12_ITEM_PACK_SAFEBAG, 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 PKCS12err(PKCS12_F_PKCS12_ITEM_PACK_SAFEBAG, ERR_R_MALLOC_FAILURE); 30 goto err; 31 } 32 if ((safebag = PKCS12_SAFEBAG_new()) == NULL) { 33 PKCS12err(PKCS12_F_PKCS12_ITEM_PACK_SAFEBAG, 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 PKCS12err(PKCS12_F_PKCS12_PACK_P7DATA, 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 PKCS12err(PKCS12_F_PKCS12_PACK_P7DATA, ERR_R_MALLOC_FAILURE); 57 goto err; 58 } 59 60 if (!ASN1_item_pack(sk, ASN1_ITEM_rptr(PKCS12_SAFEBAGS), &p7->d.data)) { 61 PKCS12err(PKCS12_F_PKCS12_PACK_P7DATA, 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 PKCS12err(PKCS12_F_PKCS12_UNPACK_P7DATA, 76 PKCS12_R_CONTENT_TYPE_NOT_DATA); 77 return NULL; 78 } 79 return ASN1_item_unpack(p7->d.data, ASN1_ITEM_rptr(PKCS12_SAFEBAGS)); 80 } 81 82 /* Turn a stack of SAFEBAGS into a PKCS#7 encrypted data ContentInfo */ 83 84 PKCS7 *PKCS12_pack_p7encdata(int pbe_nid, const char *pass, int passlen, 85 unsigned char *salt, int saltlen, int iter, 86 STACK_OF(PKCS12_SAFEBAG) *bags) 87 { 88 PKCS7 *p7; 89 X509_ALGOR *pbe; 90 const EVP_CIPHER *pbe_ciph; 91 92 if ((p7 = PKCS7_new()) == NULL) { 93 PKCS12err(PKCS12_F_PKCS12_PACK_P7ENCDATA, ERR_R_MALLOC_FAILURE); 94 return NULL; 95 } 96 if (!PKCS7_set_type(p7, NID_pkcs7_encrypted)) { 97 PKCS12err(PKCS12_F_PKCS12_PACK_P7ENCDATA, 98 PKCS12_R_ERROR_SETTING_ENCRYPTED_DATA_TYPE); 99 goto err; 100 } 101 102 pbe_ciph = EVP_get_cipherbynid(pbe_nid); 103 104 if (pbe_ciph) 105 pbe = PKCS5_pbe2_set(pbe_ciph, iter, salt, saltlen); 106 else 107 pbe = PKCS5_pbe_set(pbe_nid, iter, salt, saltlen); 108 109 if (!pbe) { 110 PKCS12err(PKCS12_F_PKCS12_PACK_P7ENCDATA, ERR_R_MALLOC_FAILURE); 111 goto err; 112 } 113 X509_ALGOR_free(p7->d.encrypted->enc_data->algorithm); 114 p7->d.encrypted->enc_data->algorithm = pbe; 115 ASN1_OCTET_STRING_free(p7->d.encrypted->enc_data->enc_data); 116 if (!(p7->d.encrypted->enc_data->enc_data = 117 PKCS12_item_i2d_encrypt(pbe, ASN1_ITEM_rptr(PKCS12_SAFEBAGS), pass, 118 passlen, bags, 1))) { 119 PKCS12err(PKCS12_F_PKCS12_PACK_P7ENCDATA, PKCS12_R_ENCRYPT_ERROR); 120 goto err; 121 } 122 123 return p7; 124 125 err: 126 PKCS7_free(p7); 127 return NULL; 128 } 129 130 STACK_OF(PKCS12_SAFEBAG) *PKCS12_unpack_p7encdata(PKCS7 *p7, const char *pass, 131 int passlen) 132 { 133 if (!PKCS7_type_is_encrypted(p7)) 134 return NULL; 135 return PKCS12_item_decrypt_d2i(p7->d.encrypted->enc_data->algorithm, 136 ASN1_ITEM_rptr(PKCS12_SAFEBAGS), 137 pass, passlen, 138 p7->d.encrypted->enc_data->enc_data, 1); 139 } 140 141 PKCS8_PRIV_KEY_INFO *PKCS12_decrypt_skey(const PKCS12_SAFEBAG *bag, 142 const char *pass, int passlen) 143 { 144 return PKCS8_decrypt(bag->value.shkeybag, pass, passlen); 145 } 146 147 int PKCS12_pack_authsafes(PKCS12 *p12, STACK_OF(PKCS7) *safes) 148 { 149 if (ASN1_item_pack(safes, ASN1_ITEM_rptr(PKCS12_AUTHSAFES), 150 &p12->authsafes->d.data)) 151 return 1; 152 return 0; 153 } 154 155 STACK_OF(PKCS7) *PKCS12_unpack_authsafes(const PKCS12 *p12) 156 { 157 if (!PKCS7_type_is_data(p12->authsafes)) { 158 PKCS12err(PKCS12_F_PKCS12_UNPACK_AUTHSAFES, 159 PKCS12_R_CONTENT_TYPE_NOT_DATA); 160 return NULL; 161 } 162 return ASN1_item_unpack(p12->authsafes->d.data, 163 ASN1_ITEM_rptr(PKCS12_AUTHSAFES)); 164 } 165