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openssl/apps/pkcs12.c
Ben Laurie 0b3f827cf5 Yet another stack.
1999-05-02 21:36:58 +00:00

676 lines
20 KiB
C
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/* pkcs12.c */
/* Written by Dr Stephen N Henson (shenson@bigfoot.com) 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 <stdlib.h>
#include <string.h>
#include <openssl/des.h>
#include <openssl/pem.h>
#include <openssl/err.h>
#include <openssl/pkcs12.h>
#include "apps.h"
#define PROG pkcs12_main
EVP_CIPHER *enc;
#define _ITER_ 1000
#define NOKEYS 0x1
#define NOCERTS 0x2
#define INFO 0x4
#define CLCERTS 0x8
#define CACERTS 0x10
int get_cert_chain(X509 *cert, STACK **chain);
int dump_certs_keys_p12(BIO *out, PKCS12 *p12, char *pass, int passlen, int options);
int dump_certs_pkeys_bags(BIO *out, STACK *bags, char *pass, int passlen, int options);
int dump_certs_pkeys_bag(BIO *out, PKCS12_SAFEBAG *bags, char *pass, int passlen, int options);
int print_attribs(BIO *out, STACK *attrlst, char *name);
void hex_prin(BIO *out, unsigned char *buf, int len);
int alg_print(BIO *x, X509_ALGOR *alg);
int cert_load(BIO *in, STACK *sk);
int MAIN(int argc, char **argv)
{
char *infile=NULL, *outfile=NULL, *keyname = NULL;
char *certfile=NULL;
BIO *in=NULL, *out = NULL, *inkey = NULL, *certsin = NULL;
char **args;
char *name = NULL;
PKCS12 *p12 = NULL;
char pass[50], macpass[50];
int export_cert = 0;
int options = 0;
int chain = 0;
int badarg = 0;
int iter = _ITER_;
int maciter = 1;
int twopass = 0;
int keytype = 0;
int cert_pbe = NID_pbe_WithSHA1And40BitRC2_CBC;
int ret = 1;
int macver = 1;
STACK *canames = NULL;
apps_startup();
enc = EVP_des_ede3_cbc();
if (bio_err == NULL ) bio_err = BIO_new_fp (stderr, BIO_NOCLOSE);
args = argv + 1;
while (*args) {
if (*args[0] == '-') {
if (!strcmp (*args, "-nokeys")) options |= NOKEYS;
else if (!strcmp (*args, "-keyex")) keytype = KEY_EX;
else if (!strcmp (*args, "-keysig")) keytype = KEY_SIG;
else if (!strcmp (*args, "-nocerts")) options |= NOCERTS;
else if (!strcmp (*args, "-clcerts")) options |= CLCERTS;
else if (!strcmp (*args, "-cacerts")) options |= CACERTS;
else if (!strcmp (*args, "-noout")) options |= (NOKEYS|NOCERTS);
else if (!strcmp (*args, "-info")) options |= INFO;
else if (!strcmp (*args, "-chain")) chain = 1;
else if (!strcmp (*args, "-twopass")) twopass = 1;
else if (!strcmp (*args, "-nomacver")) macver = 0;
else if (!strcmp (*args, "-descert"))
cert_pbe = NID_pbe_WithSHA1And3_Key_TripleDES_CBC;
else if (!strcmp (*args, "-export")) export_cert = 1;
else if (!strcmp (*args, "-des")) enc=EVP_des_cbc();
#ifndef NO_IDEA
else if (!strcmp (*args, "-idea")) enc=EVP_idea_cbc();
#endif
else if (!strcmp (*args, "-des3")) enc = EVP_des_ede3_cbc();
else if (!strcmp (*args, "-noiter")) iter = 1;
else if (!strcmp (*args, "-maciter")) maciter = _ITER_;
else if (!strcmp (*args, "-nodes")) enc=NULL;
else if (!strcmp (*args, "-inkey")) {
if (args[1]) {
args++;
keyname = *args;
} else badarg = 1;
} else if (!strcmp (*args, "-certfile")) {
if (args[1]) {
args++;
certfile = *args;
} else badarg = 1;
} else if (!strcmp (*args, "-name")) {
if (args[1]) {
args++;
name = *args;
} else badarg = 1;
} else if (!strcmp (*args, "-caname")) {
if (args[1]) {
args++;
if (!canames) canames = sk_new(NULL);
sk_push(canames, *args);
} else badarg = 1;
} else if (!strcmp (*args, "-in")) {
if (args[1]) {
args++;
infile = *args;
} else badarg = 1;
} else if (!strcmp (*args, "-out")) {
if (args[1]) {
args++;
outfile = *args;
} else badarg = 1;
} else badarg = 1;
} else badarg = 1;
args++;
}
if (badarg) {
BIO_printf (bio_err, "Usage: pkcs12 [options]\n");
BIO_printf (bio_err, "where options are\n");
BIO_printf (bio_err, "-export output PKCS12 file\n");
BIO_printf (bio_err, "-chain add certificate chain\n");
BIO_printf (bio_err, "-inkey file private key if not infile\n");
BIO_printf (bio_err, "-certfile f add all certs in f\n");
BIO_printf (bio_err, "-name \"name\" use name as friendly name\n");
BIO_printf (bio_err, "-caname \"nm\" use nm as CA friendly name (can be used more than once).\n");
BIO_printf (bio_err, "-in infile input filename\n");
BIO_printf (bio_err, "-out outfile output filename\n");
BIO_printf (bio_err, "-noout don't output anything, just verify.\n");
BIO_printf (bio_err, "-nomacver don't verify MAC.\n");
BIO_printf (bio_err, "-nocerts don't output certificates.\n");
BIO_printf (bio_err, "-clcerts only output client certificates.\n");
BIO_printf (bio_err, "-cacerts only output CA certificates.\n");
BIO_printf (bio_err, "-nokeys don't output private keys.\n");
BIO_printf (bio_err, "-info give info about PKCS#12 structure.\n");
BIO_printf (bio_err, "-des encrypt private keys with DES\n");
BIO_printf (bio_err, "-des3 encrypt private keys with triple DES (default)\n");
#ifndef NO_IDEA
BIO_printf (bio_err, "-idea encrypt private keys with idea\n");
#endif
BIO_printf (bio_err, "-nodes don't encrypt private keys\n");
BIO_printf (bio_err, "-noiter don't use encryption iteration\n");
BIO_printf (bio_err, "-maciter use MAC iteration\n");
BIO_printf (bio_err, "-twopass separate MAC, encryption passwords\n");
BIO_printf (bio_err, "-descert encrypt PKCS#12 certificates with triple DES (default RC2-40)\n");
BIO_printf (bio_err, "-keyex set MS key exchange type\n");
BIO_printf (bio_err, "-keysig set MS key signature type\n");
goto end;
}
ERR_load_crypto_strings();
in = BIO_new (BIO_s_file());
out = BIO_new (BIO_s_file());
if (!infile) BIO_set_fp (in, stdin, BIO_NOCLOSE);
else {
if (BIO_read_filename (in, infile) <= 0) {
perror (infile);
goto end;
}
}
if (certfile) {
certsin = BIO_new (BIO_s_file());
if (BIO_read_filename (certsin, certfile) <= 0) {
perror (certfile);
goto end;
}
}
if (keyname) {
inkey = BIO_new (BIO_s_file());
if (BIO_read_filename (inkey, keyname) <= 0) {
perror (keyname);
goto end;
}
}
if (!outfile) BIO_set_fp (out, stdout, BIO_NOCLOSE);
else {
if (BIO_write_filename (out, outfile) <= 0) {
perror (outfile);
goto end;
}
}
if (twopass) {
if(EVP_read_pw_string (macpass, 50, "Enter MAC Password:", export_cert)) {
BIO_printf (bio_err, "Can't read Password\n");
goto end;
}
}
if (export_cert) {
EVP_PKEY *key;
STACK *bags, *safes;
PKCS12_SAFEBAG *bag;
PKCS8_PRIV_KEY_INFO *p8;
PKCS7 *authsafe;
X509 *cert, *ucert = NULL;
STACK *certs;
char *catmp;
int i, pmatch = 0;
unsigned char keyid[EVP_MAX_MD_SIZE];
unsigned int keyidlen;
/* Get private key so we can match it to a certificate */
key = PEM_read_bio_PrivateKey(inkey ? inkey : in, NULL, NULL);
if (!inkey) BIO_reset(in);
if (!key) {
BIO_printf (bio_err, "Error loading private key\n");
ERR_print_errors(bio_err);
goto end;
}
certs = sk_new(NULL);
/* Load in all certs in input file */
if(!cert_load(in, certs)) {
BIO_printf(bio_err, "Error loading certificates from input\n");
ERR_print_errors(bio_err);
goto end;
}
bags = sk_new (NULL);
/* Add any more certificates asked for */
if (certsin) {
if(!cert_load(certsin, certs)) {
BIO_printf(bio_err, "Error loading certificates from certfile\n");
ERR_print_errors(bio_err);
goto end;
}
BIO_free(certsin);
}
/* Find certificate (if any) matching private key */
for(i = 0; i < sk_num(certs); i++) {
cert = (X509 *)sk_value(certs, i);
if(X509_check_private_key(cert, key)) {
ucert = cert;
break;
}
}
if(!ucert) {
BIO_printf(bio_err, "No certificate matches private key\n");
goto end;
}
/* If chaining get chain from user cert */
if (chain) {
int vret;
STACK *chain2;
vret = get_cert_chain (ucert, &chain2);
if (vret) {
BIO_printf (bio_err, "Error %s getting chain.\n",
X509_verify_cert_error_string(vret));
goto end;
}
/* Exclude verified certificate */
for (i = 1; i < sk_num (chain2) ; i++)
sk_push(certs, sk_value (chain2, i));
sk_free(chain2);
}
/* We now have loads of certificates: include them all */
for(i = 0; i < sk_num(certs); i++) {
cert = (X509 *)sk_value(certs, i);
bag = M_PKCS12_x5092certbag(cert);
/* If it matches private key mark it */
if(cert == ucert) {
if(name) PKCS12_add_friendlyname(bag, name, -1);
X509_digest(cert, EVP_sha1(), keyid, &keyidlen);
PKCS12_add_localkeyid(bag, keyid, keyidlen);
pmatch = 1;
} else if((catmp = sk_shift(canames)))
PKCS12_add_friendlyname(bag, catmp, -1);
sk_push(bags, (char *)bag);
}
if (canames) sk_free(canames);
if(EVP_read_pw_string (pass, 50, "Enter Export Password:", 1)) {
BIO_printf (bio_err, "Can't read Password\n");
goto end;
}
if (!twopass) strcpy(macpass, pass);
/* Turn certbags into encrypted authsafe */
authsafe = PKCS12_pack_p7encdata (cert_pbe, pass, -1, NULL, 0,
iter, bags);
sk_pop_free(bags, PKCS12_SAFEBAG_free);
if (!authsafe) {
ERR_print_errors (bio_err);
goto end;
}
safes = sk_new (NULL);
sk_push (safes, (char *)authsafe);
/* Make a shrouded key bag */
p8 = EVP_PKEY2PKCS8 (key);
EVP_PKEY_free(key);
if(keytype) PKCS8_add_keyusage(p8, keytype);
bag = PKCS12_MAKE_SHKEYBAG (NID_pbe_WithSHA1And3_Key_TripleDES_CBC,
pass, -1, NULL, 0, iter, p8);
PKCS8_PRIV_KEY_INFO_free(p8);
if (name) PKCS12_add_friendlyname (bag, name, -1);
PKCS12_add_localkeyid (bag, keyid, keyidlen);
bags = sk_new(NULL);
sk_push (bags, (char *)bag);
/* Turn it into unencrypted safe bag */
authsafe = PKCS12_pack_p7data (bags);
sk_pop_free(bags, PKCS12_SAFEBAG_free);
sk_push (safes, (char *)authsafe);
p12 = PKCS12_init (NID_pkcs7_data);
M_PKCS12_pack_authsafes (p12, safes);
sk_pop_free(safes, PKCS7_free);
PKCS12_set_mac (p12, macpass, -1, NULL, 0, maciter, NULL);
i2d_PKCS12_bio (out, p12);
PKCS12_free(p12);
ret = 0;
goto end;
}
if (!(p12 = d2i_PKCS12_bio (in, NULL))) {
ERR_print_errors(bio_err);
goto end;
}
if(EVP_read_pw_string (pass, 50, "Enter Import Password:", 0)) {
BIO_printf (bio_err, "Can't read Password\n");
goto end;
}
if (!twopass) strcpy(macpass, pass);
if (options & INFO) BIO_printf (bio_err, "MAC Iteration %ld\n", p12->mac->iter ? ASN1_INTEGER_get (p12->mac->iter) : 1);
if(macver) {
if (!PKCS12_verify_mac (p12, macpass, -1)) {
BIO_printf (bio_err, "Mac verify errror: invalid password?\n");
ERR_print_errors (bio_err);
goto end;
} else BIO_printf (bio_err, "MAC verified OK\n");
}
if (!dump_certs_keys_p12 (out, p12, pass, -1, options)) {
BIO_printf(bio_err, "Error outputting keys and certificates\n");
ERR_print_errors (bio_err);
goto end;
}
PKCS12_free(p12);
ret = 0;
end:
EXIT(ret);
}
int dump_cert_text (BIO *out, X509 *x)
{
char buf[256];
X509_NAME_oneline(X509_get_subject_name(x),buf,256);
BIO_puts(out,"subject=");
BIO_puts(out,buf);
X509_NAME_oneline(X509_get_issuer_name(x),buf,256);
BIO_puts(out,"\nissuer= ");
BIO_puts(out,buf);
BIO_puts(out,"\n");
return 0;
}
int dump_certs_keys_p12 (BIO *out, PKCS12 *p12, char *pass,
int passlen, int options)
{
STACK *asafes, *bags;
int i, bagnid;
PKCS7 *p7;
if (!( asafes = M_PKCS12_unpack_authsafes (p12))) 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);
if (options & INFO) BIO_printf (bio_err, "PKCS7 Data\n");
} else if (bagnid == NID_pkcs7_encrypted) {
if (options & INFO) {
BIO_printf (bio_err, "PKCS7 Encrypted data: ");
alg_print (bio_err,
p7->d.encrypted->enc_data->algorithm);
}
bags = M_PKCS12_unpack_p7encdata (p7, pass, passlen);
} else continue;
if (!bags) return 0;
if (!dump_certs_pkeys_bags (out, bags, pass, passlen,
options)) {
sk_pop_free (bags, PKCS12_SAFEBAG_free);
return 0;
}
sk_pop_free (bags, PKCS12_SAFEBAG_free);
}
sk_pop_free (asafes, PKCS7_free);
return 1;
}
int dump_certs_pkeys_bags (BIO *out, STACK *bags, char *pass,
int passlen, int options)
{
int i;
for (i = 0; i < sk_num (bags); i++) {
if (!dump_certs_pkeys_bag (out,
(PKCS12_SAFEBAG *)sk_value (bags, i), pass, passlen,
options)) return 0;
}
return 1;
}
int dump_certs_pkeys_bag (BIO *out, PKCS12_SAFEBAG *bag, char *pass,
int passlen, int options)
{
EVP_PKEY *pkey;
PKCS8_PRIV_KEY_INFO *p8;
X509 *x509;
switch (M_PKCS12_bag_type(bag))
{
case NID_keyBag:
if (options & INFO) BIO_printf (bio_err, "Key bag\n");
if (options & NOKEYS) return 1;
print_attribs (out, bag->attrib, "Bag Attributes");
p8 = bag->value.keybag;
if (!(pkey = EVP_PKCS82PKEY (p8))) return 0;
print_attribs (out, p8->attributes, "Key Attributes");
PEM_write_bio_PrivateKey (out, pkey, enc, NULL, 0, NULL);
EVP_PKEY_free(pkey);
break;
case NID_pkcs8ShroudedKeyBag:
if (options & INFO) {
BIO_printf (bio_err, "Shrouded Keybag: ");
alg_print (bio_err, bag->value.shkeybag->algor);
}
if (options & NOKEYS) return 1;
print_attribs (out, bag->attrib, "Bag Attributes");
if (!(p8 = M_PKCS12_decrypt_skey (bag, pass, passlen)))
return 0;
if (!(pkey = EVP_PKCS82PKEY (p8))) return 0;
print_attribs (out, p8->attributes, "Key Attributes");
PKCS8_PRIV_KEY_INFO_free(p8);
PEM_write_bio_PrivateKey (out, pkey, enc, NULL, 0, NULL);
EVP_PKEY_free(pkey);
break;
case NID_certBag:
if (options & INFO) BIO_printf (bio_err, "Certificate bag\n");
if (options & NOCERTS) return 1;
if (PKCS12_get_attr(bag, NID_localKeyID)) {
if (options & CACERTS) return 1;
} else if (options & CLCERTS) return 1;
print_attribs (out, bag->attrib, "Bag Attributes");
if (M_PKCS12_cert_bag_type(bag) != NID_x509Certificate )
return 1;
if (!(x509 = M_PKCS12_certbag2x509(bag))) return 0;
dump_cert_text (out, x509);
PEM_write_bio_X509 (out, x509);
X509_free(x509);
break;
case NID_safeContentsBag:
if (options & INFO) BIO_printf (bio_err, "Safe Contents bag\n");
print_attribs (out, bag->attrib, "Bag Attributes");
return dump_certs_pkeys_bags (out, bag->value.safes, pass,
passlen, options);
default:
BIO_printf (bio_err, "Warning unsupported bag type: ");
i2a_ASN1_OBJECT (bio_err, bag->type);
BIO_printf (bio_err, "\n");
return 1;
break;
}
return 1;
}
/* Given a single certificate return a verified chain or NULL if error */
/* Hope this is OK .... */
int get_cert_chain (X509 *cert, STACK **chain)
{
X509_STORE *store;
X509_STORE_CTX store_ctx;
STACK *chn;
int i;
X509 *x;
store = X509_STORE_new ();
X509_STORE_set_default_paths (store);
X509_STORE_CTX_init(&store_ctx, store, cert, NULL);
if (X509_verify_cert(&store_ctx) <= 0) {
i = X509_STORE_CTX_get_error (&store_ctx);
goto err;
}
chn = sk_dup(X509_STORE_CTX_get_chain (&store_ctx));
for (i = 0; i < sk_num(chn); i++) {
x = (X509 *)sk_value(chn, i);
CRYPTO_add(&x->references,1,CRYPTO_LOCK_X509);
}
i = 0;
*chain = chn;
err:
X509_STORE_CTX_cleanup(&store_ctx);
X509_STORE_free(store);
return i;
}
int alg_print (BIO *x, X509_ALGOR *alg)
{
PBEPARAM *pbe;
unsigned char *p;
p = alg->parameter->value.sequence->data;
pbe = d2i_PBEPARAM (NULL, &p, alg->parameter->value.sequence->length);
BIO_printf (bio_err, "%s, Iteration %d\n",
OBJ_nid2ln(OBJ_obj2nid(alg->algorithm)), ASN1_INTEGER_get(pbe->iter));
PBEPARAM_free (pbe);
return 0;
}
/* Load all certificates from a given file */
int cert_load(BIO *in, STACK *sk)
{
int ret;
X509 *cert;
ret = 0;
while((cert = PEM_read_bio_X509(in, NULL, NULL))) {
ret = 1;
sk_push(sk, (char *)cert);
}
if(ret) ERR_clear_error();
return ret;
}
/* Generalised attribute print: handle PKCS#8 and bag attributes */
int print_attribs (BIO *out, STACK *attrlst, char *name)
{
X509_ATTRIBUTE *attr;
ASN1_TYPE *av;
char *value;
int i, attr_nid;
if(!attrlst) {
BIO_printf(out, "%s: <No Attributes>\n", name);
return 1;
}
if(!sk_num(attrlst)) {
BIO_printf(out, "%s: <Empty Attributes>\n", name);
return 1;
}
BIO_printf(out, "%s\n", name);
for(i = 0; i < sk_num(attrlst); i++) {
attr = (X509_ATTRIBUTE *) sk_value(attrlst, i);
attr_nid = OBJ_obj2nid(attr->object);
BIO_printf(out, " ");
if(attr_nid == NID_undef) {
i2a_ASN1_OBJECT (out, attr->object);
BIO_printf(out, ": ");
} else BIO_printf(out, "%s: ", OBJ_nid2ln(attr_nid));
if(sk_ASN1_TYPE_num(attr->value.set)) {
av = sk_ASN1_TYPE_value(attr->value.set, 0);
switch(av->type) {
case V_ASN1_BMPSTRING:
value = uni2asc(av->value.bmpstring->data,
av->value.bmpstring->length);
BIO_printf(out, "%s\n", value);
Free(value);
break;
case V_ASN1_OCTET_STRING:
hex_prin(out, av->value.bit_string->data,
av->value.bit_string->length);
BIO_printf(out, "\n");
break;
case V_ASN1_BIT_STRING:
hex_prin(out, av->value.octet_string->data,
av->value.octet_string->length);
BIO_printf(out, "\n");
break;
default:
BIO_printf(out, "<Unsupported tag %d>\n", av->type);
break;
}
} else BIO_printf(out, "<No Values>\n");
}
return 1;
}
void hex_prin(BIO *out, unsigned char *buf, int len)
{
int i;
for (i = 0; i < len; i++) BIO_printf (out, "%02X ", buf[i]);
}
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