--- /dev/null
+/* 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 <stdio.h>
+#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)
+ {
+ if (X509_check_private_key(x, *pkey))
+ {
+ *cert = x;
+ x = NULL;
+ }
+ }
+
+ 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;
+}
+
projects / cassiopeia.git / blobdiff