| /* p12_kiss.c */ |
| /* |
| * Written by Dr Stephen N Henson (steve@openssl.org) 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 |
| * licensing@OpenSSL.org. |
| * |
| * 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 |
| * (eay@cryptsoft.com). This product includes software written by Tim |
| * Hudson (tjh@cryptsoft.com). |
| * |
| */ |
| |
| #include <openssl/opensslconf.h> |
| #if !defined(OPENSSL_SYS_STARBOARD) |
| #include <stdio.h> |
| #endif // !defined(OPENSSL_SYS_STARBOARD) |
| #include "cryptlib.h" |
| #include <openssl/pkcs12.h> |
| |
| /* Simplified PKCS#12 routines */ |
| |
| static int parse_pk12(PKCS12 *p12, const char *pass, int passlen, |
| EVP_PKEY **pkey, STACK_OF(X509) *ocerts); |
| |
| static int parse_bags(STACK_OF(PKCS12_SAFEBAG) *bags, const char *pass, |
| int passlen, EVP_PKEY **pkey, STACK_OF(X509) *ocerts); |
| |
| static int parse_bag(PKCS12_SAFEBAG *bag, const char *pass, int passlen, |
| EVP_PKEY **pkey, STACK_OF(X509) *ocerts); |
| |
| /* |
| * Parse and decrypt a PKCS#12 structure returning user key, user cert and |
| * other (CA) certs. Note either ca should be NULL, *ca should be NULL, or it |
| * should point to a valid STACK structure. pkey and cert can be passed |
| * unitialised. |
| */ |
| |
| int PKCS12_parse(PKCS12 *p12, const char *pass, EVP_PKEY **pkey, X509 **cert, |
| STACK_OF(X509) **ca) |
| { |
| STACK_OF(X509) *ocerts = NULL; |
| X509 *x = NULL; |
| /* Check for NULL PKCS12 structure */ |
| |
| if (!p12) { |
| PKCS12err(PKCS12_F_PKCS12_PARSE, |
| PKCS12_R_INVALID_NULL_PKCS12_POINTER); |
| return 0; |
| } |
| |
| if (pkey) |
| *pkey = NULL; |
| if (cert) |
| *cert = NULL; |
| |
| /* Check the mac */ |
| |
| /* |
| * If password is zero length or NULL then try verifying both cases to |
| * determine which password is correct. The reason for this is that under |
| * PKCS#12 password based encryption no password and a zero length |
| * password are two different things... |
| */ |
| |
| if (!pass || !*pass) { |
| if (PKCS12_verify_mac(p12, NULL, 0)) |
| pass = NULL; |
| else if (PKCS12_verify_mac(p12, "", 0)) |
| pass = ""; |
| else { |
| PKCS12err(PKCS12_F_PKCS12_PARSE, PKCS12_R_MAC_VERIFY_FAILURE); |
| goto err; |
| } |
| } else if (!PKCS12_verify_mac(p12, pass, -1)) { |
| PKCS12err(PKCS12_F_PKCS12_PARSE, PKCS12_R_MAC_VERIFY_FAILURE); |
| goto err; |
| } |
| |
| /* Allocate stack for other certificates */ |
| ocerts = sk_X509_new_null(); |
| |
| if (!ocerts) { |
| PKCS12err(PKCS12_F_PKCS12_PARSE, ERR_R_MALLOC_FAILURE); |
| return 0; |
| } |
| |
| if (!parse_pk12(p12, pass, -1, pkey, ocerts)) { |
| PKCS12err(PKCS12_F_PKCS12_PARSE, PKCS12_R_PARSE_ERROR); |
| goto err; |
| } |
| |
| while ((x = sk_X509_pop(ocerts))) { |
| if (pkey && *pkey && cert && !*cert) { |
| ERR_set_mark(); |
| if (X509_check_private_key(x, *pkey)) { |
| *cert = x; |
| x = NULL; |
| } |
| ERR_pop_to_mark(); |
| } |
| |
| if (ca && x) { |
| if (!*ca) |
| *ca = sk_X509_new_null(); |
| if (!*ca) |
| goto err; |
| if (!sk_X509_push(*ca, x)) |
| goto err; |
| x = NULL; |
| } |
| if (x) |
| X509_free(x); |
| } |
| |
| if (ocerts) |
| sk_X509_pop_free(ocerts, X509_free); |
| |
| return 1; |
| |
| err: |
| |
| if (pkey && *pkey) |
| EVP_PKEY_free(*pkey); |
| if (cert && *cert) |
| X509_free(*cert); |
| if (x) |
| X509_free(x); |
| if (ocerts) |
| sk_X509_pop_free(ocerts, X509_free); |
| return 0; |
| |
| } |
| |
| /* Parse the outer PKCS#12 structure */ |
| |
| static int parse_pk12(PKCS12 *p12, const char *pass, int passlen, |
| EVP_PKEY **pkey, STACK_OF(X509) *ocerts) |
| { |
| STACK_OF(PKCS7) *asafes; |
| STACK_OF(PKCS12_SAFEBAG) *bags; |
| int i, bagnid; |
| PKCS7 *p7; |
| |
| if (!(asafes = PKCS12_unpack_authsafes(p12))) |
| return 0; |
| for (i = 0; i < sk_PKCS7_num(asafes); i++) { |
| p7 = sk_PKCS7_value(asafes, i); |
| bagnid = OBJ_obj2nid(p7->type); |
| if (bagnid == NID_pkcs7_data) { |
| bags = PKCS12_unpack_p7data(p7); |
| } else if (bagnid == NID_pkcs7_encrypted) { |
| bags = PKCS12_unpack_p7encdata(p7, pass, passlen); |
| } else |
| continue; |
| if (!bags) { |
| sk_PKCS7_pop_free(asafes, PKCS7_free); |
| return 0; |
| } |
| if (!parse_bags(bags, pass, passlen, pkey, ocerts)) { |
| sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free); |
| sk_PKCS7_pop_free(asafes, PKCS7_free); |
| return 0; |
| } |
| sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free); |
| } |
| sk_PKCS7_pop_free(asafes, PKCS7_free); |
| return 1; |
| } |
| |
| static int parse_bags(STACK_OF(PKCS12_SAFEBAG) *bags, const char *pass, |
| int passlen, EVP_PKEY **pkey, STACK_OF(X509) *ocerts) |
| { |
| int i; |
| for (i = 0; i < sk_PKCS12_SAFEBAG_num(bags); i++) { |
| if (!parse_bag(sk_PKCS12_SAFEBAG_value(bags, i), |
| pass, passlen, pkey, ocerts)) |
| return 0; |
| } |
| return 1; |
| } |
| |
| static int parse_bag(PKCS12_SAFEBAG *bag, const char *pass, int passlen, |
| EVP_PKEY **pkey, STACK_OF(X509) *ocerts) |
| { |
| PKCS8_PRIV_KEY_INFO *p8; |
| X509 *x509; |
| ASN1_TYPE *attrib; |
| ASN1_BMPSTRING *fname = NULL; |
| ASN1_OCTET_STRING *lkid = NULL; |
| |
| if ((attrib = PKCS12_get_attr(bag, NID_friendlyName))) |
| fname = attrib->value.bmpstring; |
| |
| if ((attrib = PKCS12_get_attr(bag, NID_localKeyID))) |
| lkid = attrib->value.octet_string; |
| |
| switch (M_PKCS12_bag_type(bag)) { |
| case NID_keyBag: |
| if (!pkey || *pkey) |
| return 1; |
| if (!(*pkey = EVP_PKCS82PKEY(bag->value.keybag))) |
| return 0; |
| break; |
| |
| case NID_pkcs8ShroudedKeyBag: |
| if (!pkey || *pkey) |
| return 1; |
| if (!(p8 = PKCS12_decrypt_skey(bag, pass, passlen))) |
| return 0; |
| *pkey = EVP_PKCS82PKEY(p8); |
| PKCS8_PRIV_KEY_INFO_free(p8); |
| if (!(*pkey)) |
| return 0; |
| break; |
| |
| case NID_certBag: |
| if (M_PKCS12_cert_bag_type(bag) != NID_x509Certificate) |
| return 1; |
| if (!(x509 = PKCS12_certbag2x509(bag))) |
| return 0; |
| if (lkid && !X509_keyid_set1(x509, lkid->data, lkid->length)) { |
| X509_free(x509); |
| return 0; |
| } |
| if (fname) { |
| int len, r; |
| unsigned char *data; |
| len = ASN1_STRING_to_UTF8(&data, fname); |
| if (len >= 0) { |
| r = X509_alias_set1(x509, data, len); |
| OPENSSL_free(data); |
| if (!r) { |
| X509_free(x509); |
| return 0; |
| } |
| } |
| } |
| |
| if (!sk_X509_push(ocerts, x509)) { |
| X509_free(x509); |
| return 0; |
| } |
| |
| break; |
| |
| case NID_safeContentsBag: |
| return parse_bags(bag->value.safes, pass, passlen, pkey, ocerts); |
| break; |
| |
| default: |
| return 1; |
| break; |
| } |
| return 1; |
| } |
