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| /* p12_npas.c */ | ||
| /* Written by Dr Stephen N Henson ([email protected]) for the OpenSSL | ||
| * project 1999. | ||
| */ | ||
| /* ==================================================================== | ||
| * Copyright (c) 1999 The OpenSSL Project. All rights reserved. | ||
| * | ||
| * Redistribution and use in source and binary forms, with or without | ||
| * modification, are permitted provided that the following conditions | ||
| * are met: | ||
| * | ||
| * 1. Redistributions of source code must retain the above copyright | ||
| * notice, this list of conditions and the following disclaimer. | ||
| * | ||
| * 2. Redistributions in binary form must reproduce the above copyright | ||
| * notice, this list of conditions and the following disclaimer in | ||
| * the documentation and/or other materials provided with the | ||
| * distribution. | ||
| * | ||
| * 3. All advertising materials mentioning features or use of this | ||
| * software must display the following acknowledgment: | ||
| * "This product includes software developed by the OpenSSL Project | ||
| * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" | ||
| * | ||
| * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to | ||
| * endorse or promote products derived from this software without | ||
| * prior written permission. For written permission, please contact | ||
| * [email protected]. | ||
| * | ||
| * 5. Products derived from this software may not be called "OpenSSL" | ||
| * nor may "OpenSSL" appear in their names without prior written | ||
| * permission of the OpenSSL Project. | ||
| * | ||
| * 6. Redistributions of any form whatsoever must retain the following | ||
| * acknowledgment: | ||
| * "This product includes software developed by the OpenSSL Project | ||
| * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" | ||
| * | ||
| * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY | ||
| * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | ||
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR | ||
| * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | ||
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | ||
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | ||
| * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | ||
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | ||
| * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | ||
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | ||
| * OF THE POSSIBILITY OF SUCH DAMAGE. | ||
| * ==================================================================== | ||
| * | ||
| * This product includes cryptographic software written by Eric Young | ||
| * ([email protected]). This product includes software written by Tim | ||
| * Hudson ([email protected]). | ||
| * | ||
| */ | ||
|
|
||
| #include <stdio.h> | ||
| #include <stdlib.h> | ||
| #include <string.h> | ||
| #include <openssl/pem.h> | ||
| #include <openssl/err.h> | ||
| #include <openssl/pkcs12.h> | ||
|
|
||
| /* PKCS#12 password change routine */ | ||
|
|
||
| static int newpass_p12(PKCS12 *p12, char *oldpass, char *newpass); | ||
| static int newpass_bags(STACK *bags, char *oldpass, char *newpass); | ||
| static int newpass_bag(PKCS12_SAFEBAG *bag, char *oldpass, char *newpass); | ||
| static int alg_get(X509_ALGOR *alg, int *pnid, int *piter, int *psaltlen); | ||
|
|
||
| /* | ||
| * Change the password on a PKCS#12 structure. | ||
| */ | ||
|
|
||
| int PKCS12_newpass(PKCS12 *p12, char *oldpass, char *newpass) | ||
| { | ||
|
|
||
| /* Check for NULL PKCS12 structure */ | ||
|
|
||
| if(!p12) { | ||
| PKCS12err(PKCS12_F_PKCS12_NEWPASS,PKCS12_R_INVALID_NULL_PKCS12_POINTER); | ||
| return 0; | ||
| } | ||
|
|
||
| /* Check the mac */ | ||
|
|
||
| if (!PKCS12_verify_mac(p12, oldpass, -1)) { | ||
| PKCS12err(PKCS12_F_PKCS12_NEWPASS,PKCS12_R_MAC_VERIFY_FAILURE); | ||
| return 0; | ||
| } | ||
|
|
||
| if (!newpass_p12(p12, oldpass, newpass)) { | ||
| PKCS12err(PKCS12_F_PKCS12_NEWPASS,PKCS12_R_PARSE_ERROR); | ||
| return 0; | ||
| } | ||
|
|
||
| return 1; | ||
|
|
||
| } | ||
|
|
||
| /* Parse the outer PKCS#12 structure */ | ||
|
|
||
| static int newpass_p12(PKCS12 *p12, char *oldpass, char *newpass) | ||
| { | ||
| STACK *asafes, *newsafes, *bags; | ||
| int i, bagnid, pbe_nid, pbe_iter, pbe_saltlen; | ||
| PKCS7 *p7, *p7new; | ||
| ASN1_OCTET_STRING *p12_data_tmp = NULL, *macnew = NULL; | ||
| unsigned char mac[EVP_MAX_MD_SIZE]; | ||
| unsigned int maclen; | ||
| if (!(asafes = M_PKCS12_unpack_authsafes(p12))) return 0; | ||
| if(!(newsafes = sk_new(NULL))) return 0; | ||
| for (i = 0; i < sk_num (asafes); i++) { | ||
| p7 = (PKCS7 *) sk_value(asafes, i); | ||
| bagnid = OBJ_obj2nid(p7->type); | ||
| if (bagnid == NID_pkcs7_data) { | ||
| bags = M_PKCS12_unpack_p7data(p7); | ||
| } else if (bagnid == NID_pkcs7_encrypted) { | ||
| bags = M_PKCS12_unpack_p7encdata(p7, oldpass, -1); | ||
| alg_get(p7->d.encrypted->enc_data->algorithm, | ||
| &pbe_nid, &pbe_iter, &pbe_saltlen); | ||
| } else continue; | ||
| if (!bags) { | ||
| sk_pop_free(asafes, PKCS7_free); | ||
| return 0; | ||
| } | ||
| if (!newpass_bags(bags, oldpass, newpass)) { | ||
| sk_pop_free(bags, PKCS12_SAFEBAG_free); | ||
| sk_pop_free(asafes, PKCS7_free); | ||
| return 0; | ||
| } | ||
| /* Repack bag in same form with new password */ | ||
| if (bagnid == NID_pkcs7_data) p7new = PKCS12_pack_p7data(bags); | ||
| else p7new = PKCS12_pack_p7encdata(pbe_nid, newpass, -1, NULL, | ||
| pbe_saltlen, pbe_iter, bags); | ||
| sk_pop_free(bags, PKCS12_SAFEBAG_free); | ||
| if(!p7new) { | ||
| sk_pop_free(asafes, PKCS7_free); | ||
| return 0; | ||
| } | ||
| sk_push(newsafes, (char *)p7new); | ||
| } | ||
| sk_pop_free(asafes, PKCS7_free); | ||
|
|
||
| /* Repack safe: save old safe in case of error */ | ||
|
|
||
| p12_data_tmp = p12->authsafes->d.data; | ||
| if(!(p12->authsafes->d.data = ASN1_OCTET_STRING_new())) goto saferr; | ||
| if(!M_PKCS12_pack_authsafes(p12, newsafes)) goto saferr; | ||
|
|
||
| if(!PKCS12_gen_mac(p12, newpass, -1, mac, &maclen)) goto saferr; | ||
| if(!(macnew = ASN1_OCTET_STRING_new())) goto saferr; | ||
| if(!ASN1_OCTET_STRING_set(macnew, mac, maclen)) goto saferr; | ||
| ASN1_OCTET_STRING_free(p12->mac->dinfo->digest); | ||
| p12->mac->dinfo->digest = macnew; | ||
| ASN1_OCTET_STRING_free(p12_data_tmp); | ||
|
|
||
| return 1; | ||
|
|
||
| saferr: | ||
| /* Restore old safe */ | ||
| ASN1_OCTET_STRING_free(p12->authsafes->d.data); | ||
| ASN1_OCTET_STRING_free(macnew); | ||
| p12->authsafes->d.data = p12_data_tmp; | ||
| return 0; | ||
|
|
||
| } | ||
|
|
||
|
|
||
| static int newpass_bags(STACK *bags, char *oldpass, char *newpass) | ||
| { | ||
| int i; | ||
| for (i = 0; i < sk_num(bags); i++) { | ||
| if (!newpass_bag((PKCS12_SAFEBAG *)sk_value(bags, i), | ||
| oldpass, newpass)) return 0; | ||
| } | ||
| return 1; | ||
| } | ||
|
|
||
| /* Change password of safebag: only needs handle shrouded keybags */ | ||
|
|
||
| static int newpass_bag(PKCS12_SAFEBAG *bag, char *oldpass, char *newpass) | ||
| { | ||
| PKCS8_PRIV_KEY_INFO *p8; | ||
| X509_SIG *p8new; | ||
| int p8_nid, p8_saltlen, p8_iter; | ||
|
|
||
| if(M_PKCS12_bag_type(bag) != NID_pkcs8ShroudedKeyBag) return 1; | ||
|
|
||
| if (!(p8 = M_PKCS12_decrypt_skey(bag, oldpass, -1))) return 0; | ||
| alg_get(bag->value.shkeybag->algor, &p8_nid, &p8_iter, &p8_saltlen); | ||
| if(!(p8new = PKCS8_encrypt(p8_nid, NULL, newpass, -1, NULL, p8_saltlen, | ||
| p8_iter, p8))) return 0; | ||
| X509_SIG_free(bag->value.shkeybag); | ||
| bag->value.shkeybag = p8new; | ||
| return 1; | ||
| } | ||
|
|
||
| static int alg_get(X509_ALGOR *alg, int *pnid, int *piter, int *psaltlen) | ||
| { | ||
| PBEPARAM *pbe; | ||
| unsigned char *p; | ||
| p = alg->parameter->value.sequence->data; | ||
| pbe = d2i_PBEPARAM(NULL, &p, alg->parameter->value.sequence->length); | ||
| *pnid = OBJ_obj2nid(alg->algorithm); | ||
| *piter = ASN1_INTEGER_get(pbe->iter); | ||
| *psaltlen = pbe->salt->length; | ||
| PBEPARAM_free(pbe); | ||
| return 0; | ||
| } |
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