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openssl/apps/pkcs12.c
Rich Salz 3b061a00e3 RT2547: Tighten perms on generated privkey files 
When generating a private key, try to make the output file be readable
only by the owner.  Put it in CHANGES file since it might be noticeable.

Add "int private" flag to apps that write private keys, and check that it's
set whenever we do write a private key.  Checked via assert so that this
bug (security-related) gets fixed.  Thanks to Viktor for help in tracing
the code-paths where private keys are written.

Reviewed-by: Viktor Dukhovni <viktor@openssl.org>
2015-06-15 18:26:56 -04:00

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/*
* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
* project.
*/
/* ====================================================================
* Copyright (c) 1999-2006 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_NO_DES)
# include <stdio.h>
# include <stdlib.h>
# include <string.h>
# include "apps.h"
# include <openssl/crypto.h>
# include <openssl/err.h>
# include <openssl/pem.h>
# include <openssl/pkcs12.h>
# define NOKEYS 0x1
# define NOCERTS 0x2
# define INFO 0x4
# define CLCERTS 0x8
# define CACERTS 0x10
int get_cert_chain(X509 *cert, X509_STORE *store, STACK_OF(X509) **chain);
int dump_certs_keys_p12(BIO *out, PKCS12 *p12, char *pass, int passlen,
int options, char *pempass, const EVP_CIPHER *enc);
int dump_certs_pkeys_bags(BIO *out, STACK_OF(PKCS12_SAFEBAG) *bags,
char *pass, int passlen, int options, char *pempass,
const EVP_CIPHER *enc);
int dump_certs_pkeys_bag(BIO *out, PKCS12_SAFEBAG *bags, char *pass,
int passlen, int options, char *pempass,
const EVP_CIPHER *enc);
int print_attribs(BIO *out, STACK_OF(X509_ATTRIBUTE) *attrlst,
const char *name);
void hex_prin(BIO *out, unsigned char *buf, int len);
static int alg_print(X509_ALGOR *alg);
int cert_load(BIO *in, STACK_OF(X509) *sk);
static int set_pbe(int *ppbe, const char *str);
typedef enum OPTION_choice {
OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
OPT_CIPHER, OPT_NOKEYS, OPT_KEYEX, OPT_KEYSIG, OPT_NOCERTS, OPT_CLCERTS,
OPT_CACERTS, OPT_NOOUT, OPT_INFO, OPT_CHAIN, OPT_TWOPASS, OPT_NOMACVER,
OPT_DESCERT, OPT_EXPORT, OPT_NOITER, OPT_MACITER, OPT_NOMACITER,
OPT_NOMAC, OPT_LMK, OPT_NODES, OPT_MACALG, OPT_CERTPBE, OPT_KEYPBE,
OPT_RAND, OPT_INKEY, OPT_CERTFILE, OPT_NAME, OPT_CSP, OPT_CANAME,
OPT_IN, OPT_OUT, OPT_PASSIN, OPT_PASSOUT, OPT_PASSWORD, OPT_CAPATH,
OPT_CAFILE, OPT_ENGINE
} OPTION_CHOICE;
OPTIONS pkcs12_options[] = {
{"help", OPT_HELP, '-', "Display this summary"},
{"nokeys", OPT_NOKEYS, '-', "Don't output private keys"},
{"keyex", OPT_KEYEX, '-', "Set MS key exchange type"},
{"keysig", OPT_KEYSIG, '-', "Set MS key signature type"},
{"nocerts", OPT_NOCERTS, '-', "Don't output certificates"},
{"clcerts", OPT_CLCERTS, '-', "Only output client certificates"},
{"cacerts", OPT_CACERTS, '-', "Only output CA certificates"},
{"noout", OPT_NOOUT, '-', "Don't output anything, just verify"},
{"info", OPT_INFO, '-', "Print info about PKCS#12 structure"},
{"chain", OPT_CHAIN, '-', "Add certificate chain"},
{"twopass", OPT_TWOPASS, '-', "Separate MAC, encryption passwords"},
{"nomacver", OPT_NOMACVER, '-', "Don't verify MAC"},
# ifndef OPENSSL_NO_RC2
{"descert", OPT_DESCERT, '-',
"Encrypt output with 3DES (default RC2-40)"},
{"certpbe", OPT_CERTPBE, 's',
"Certificate PBE algorithm (default RC2-40)"},
# else
{"descert", OPT_DESCERT, '-', "Encrypt output with 3DES (the default)"},
{"certpbe", OPT_CERTPBE, 's', "Certificate PBE algorithm (default 3DES)"},
# endif
{"export", OPT_EXPORT, '-', "Output PKCS12 file"},
{"noiter", OPT_NOITER, '-', "Don't use encryption iteration"},
{"maciter", OPT_MACITER, '-', "Use MAC iteration"},
{"nomaciter", OPT_NOMACITER, '-', "Don't use MAC iteration"},
{"nomac", OPT_NOMAC, '-', "Don't generate MAC"},
{"LMK", OPT_LMK, '-',
"Add local machine keyset attribute to private key"},
{"nodes", OPT_NODES, '-', "Don't encrypt private keys"},
{"macalg", OPT_MACALG, 's',
"Digest algorithm used in MAC (default SHA1)"},
{"keypbe", OPT_KEYPBE, 's', "Private key PBE algorithm (default 3DES)"},
{"rand", OPT_RAND, 's',
"Load the file(s) into the random number generator"},
{"inkey", OPT_INKEY, '<', "Private key if not infile"},
{"certfile", OPT_CERTFILE, '<', "Load certs from file"},
{"name", OPT_NAME, 's', "Use name as friendly name"},
{"CSP", OPT_CSP, 's', "Microsoft CSP name"},
{"caname", OPT_CANAME, 's',
"Use name as CA friendly name (can be repeated)"},
{"in", OPT_IN, '<', "Input filename"},
{"out", OPT_OUT, '>', "Output filename"},
{"passin", OPT_PASSIN, 's', "Input file pass phrase source"},
{"passout", OPT_PASSOUT, 's', "Output file pass phrase source"},
{"password", OPT_PASSWORD, 's', "Set import/export password source"},
{"CApath", OPT_CAPATH, '/', "PEM-format directory of CA's"},
{"CAfile", OPT_CAFILE, '<', "PEM-format file of CA's"},
{"", OPT_CIPHER, '-', "Any supported cipher"},
# ifndef OPENSSL_NO_ENGINE
{"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
# endif
{NULL}
};
int pkcs12_main(int argc, char **argv)
{
char *infile = NULL, *outfile = NULL, *keyname = NULL, *certfile = NULL;
char *name = NULL, *csp_name = NULL;
char pass[2048], macpass[2048];
int export_cert = 0, options = 0, chain = 0, twopass = 0, keytype = 0;
int iter = PKCS12_DEFAULT_ITER, maciter = PKCS12_DEFAULT_ITER;
# ifndef OPENSSL_NO_RC2
int cert_pbe = NID_pbe_WithSHA1And40BitRC2_CBC;
# else
int cert_pbe = NID_pbe_WithSHA1And3_Key_TripleDES_CBC;
# endif
int key_pbe = NID_pbe_WithSHA1And3_Key_TripleDES_CBC;
int ret = 1, macver = 1, noprompt = 0, add_lmk = 0, private = 0;
char *passinarg = NULL, *passoutarg = NULL, *passarg = NULL;
char *passin = NULL, *passout = NULL, *inrand = NULL, *macalg = NULL;
char *cpass = NULL, *mpass = NULL, *CApath = NULL, *CAfile = NULL;
char *prog;
ENGINE *e = NULL;
BIO *in = NULL, *out = NULL;
PKCS12 *p12 = NULL;
STACK_OF(OPENSSL_STRING) *canames = NULL;
const EVP_CIPHER *enc = EVP_des_ede3_cbc();
OPTION_CHOICE o;
prog = opt_init(argc, argv, pkcs12_options);
while ((o = opt_next()) != OPT_EOF) {
switch (o) {
case OPT_EOF:
case OPT_ERR:
opthelp:
BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
goto end;
case OPT_HELP:
opt_help(pkcs12_options);
ret = 0;
goto end;
case OPT_NOKEYS:
options |= NOKEYS;
break;
case OPT_KEYEX:
keytype = KEY_EX;
break;
case OPT_KEYSIG:
keytype = KEY_SIG;
break;
case OPT_NOCERTS:
options |= NOCERTS;
break;
case OPT_CLCERTS:
options |= CLCERTS;
break;
case OPT_CACERTS:
options |= CACERTS;
break;
case OPT_NOOUT:
options |= (NOKEYS | NOCERTS);
break;
case OPT_INFO:
options |= INFO;
break;
case OPT_CHAIN:
chain = 1;
break;
case OPT_TWOPASS:
twopass = 1;
break;
case OPT_NOMACVER:
macver = 0;
break;
case OPT_DESCERT:
cert_pbe = NID_pbe_WithSHA1And3_Key_TripleDES_CBC;
break;
case OPT_EXPORT:
export_cert = 1;
break;
case OPT_CIPHER:
if (!opt_cipher(opt_unknown(), &enc))
goto opthelp;
break;
case OPT_NOITER:
iter = 1;
break;
case OPT_MACITER:
maciter = PKCS12_DEFAULT_ITER;
break;
case OPT_NOMACITER:
maciter = 1;
break;
case OPT_NOMAC:
maciter = -1;
break;
case OPT_MACALG:
macalg = opt_arg();
break;
case OPT_NODES:
enc = NULL;
break;
case OPT_CERTPBE:
if (!set_pbe(&cert_pbe, opt_arg()))
goto opthelp;
break;
case OPT_KEYPBE:
if (!set_pbe(&key_pbe, opt_arg()))
goto opthelp;
break;
case OPT_RAND:
inrand = opt_arg();
break;
case OPT_INKEY:
keyname = opt_arg();
break;
case OPT_CERTFILE:
certfile = opt_arg();
break;
case OPT_NAME:
name = opt_arg();
break;
case OPT_LMK:
add_lmk = 1;
break;
case OPT_CSP:
csp_name = opt_arg();
break;
case OPT_CANAME:
if (canames == NULL
&& (canames = sk_OPENSSL_STRING_new_null()) == NULL)
goto end;
sk_OPENSSL_STRING_push(canames, opt_arg());
break;
case OPT_IN:
infile = opt_arg();
break;
case OPT_OUT:
outfile = opt_arg();
break;
case OPT_PASSIN:
passinarg = opt_arg();
break;
case OPT_PASSOUT:
passoutarg = opt_arg();
break;
case OPT_PASSWORD:
passarg = opt_arg();
break;
case OPT_CAPATH:
CApath = opt_arg();
break;
case OPT_CAFILE:
CAfile = opt_arg();
break;
case OPT_ENGINE:
e = setup_engine(opt_arg(), 0);
break;
}
}
argc = opt_num_rest();
argv = opt_rest();
private = 1;
if (passarg) {
if (export_cert)
passoutarg = passarg;
else
passinarg = passarg;
}
if (!app_passwd(passinarg, passoutarg, &passin, &passout)) {
BIO_printf(bio_err, "Error getting passwords\n");
goto end;
}
if (!cpass) {
if (export_cert)
cpass = passout;
else
cpass = passin;
}
if (cpass) {
mpass = cpass;
noprompt = 1;
} else {
cpass = pass;
mpass = macpass;
}
if (!app_load_modules(NULL))
goto end;
if (export_cert || inrand) {
app_RAND_load_file(NULL, (inrand != NULL));
if (inrand != NULL)
BIO_printf(bio_err, "%ld semi-random bytes loaded\n",
app_RAND_load_files(inrand));
}
in = bio_open_default(infile, "rb");
if (in == NULL)
goto end;
out = bio_open_owner(outfile, "wb", private);
if (out == NULL)
goto end;
if (twopass) {
if (EVP_read_pw_string
(macpass, sizeof macpass, "Enter MAC Password:", export_cert)) {
BIO_printf(bio_err, "Can't read Password\n");
goto end;
}
}
if (export_cert) {
EVP_PKEY *key = NULL;
X509 *ucert = NULL, *x = NULL;
STACK_OF(X509) *certs = NULL;
const EVP_MD *macmd = NULL;
unsigned char *catmp = NULL;
int i;
if ((options & (NOCERTS | NOKEYS)) == (NOCERTS | NOKEYS)) {
BIO_printf(bio_err, "Nothing to do!\n");
goto export_end;
}
if (options & NOCERTS)
chain = 0;
if (!(options & NOKEYS)) {
key = load_key(keyname ? keyname : infile,
FORMAT_PEM, 1, passin, e, "private key");
if (!key)
goto export_end;
}
/* Load in all certs in input file */
if (!(options & NOCERTS)) {
certs = load_certs(infile, FORMAT_PEM, NULL, e,
"certificates");
if (!certs)
goto export_end;
if (key) {
/* Look for matching private key */
for (i = 0; i < sk_X509_num(certs); i++) {
x = sk_X509_value(certs, i);
if (X509_check_private_key(x, key)) {
ucert = x;
/* Zero keyid and alias */
X509_keyid_set1(ucert, NULL, 0);
X509_alias_set1(ucert, NULL, 0);
/* Remove from list */
(void)sk_X509_delete(certs, i);
break;
}
}
if (!ucert) {
BIO_printf(bio_err,
"No certificate matches private key\n");
goto export_end;
}
}
}
/* Add any more certificates asked for */
if (certfile) {
STACK_OF(X509) *morecerts = NULL;
if ((morecerts = load_certs(certfile, FORMAT_PEM, NULL, e,
"certificates from certfile")) == NULL)
goto export_end;
while (sk_X509_num(morecerts) > 0)
sk_X509_push(certs, sk_X509_shift(morecerts));
sk_X509_free(morecerts);
}
/* If chaining get chain from user cert */
if (chain) {
int vret;
STACK_OF(X509) *chain2;
X509_STORE *store;
if ((store = setup_verify(CAfile, CApath)) == NULL)
goto export_end;
vret = get_cert_chain(ucert, store, &chain2);
X509_STORE_free(store);
if (!vret) {
/* Exclude verified certificate */
for (i = 1; i < sk_X509_num(chain2); i++)
sk_X509_push(certs, sk_X509_value(chain2, i));
/* Free first certificate */
X509_free(sk_X509_value(chain2, 0));
sk_X509_free(chain2);
} else {
if (vret >= 0)
BIO_printf(bio_err, "Error %s getting chain.\n",
X509_verify_cert_error_string(vret));
else
ERR_print_errors(bio_err);
goto export_end;
}
}
/* Add any CA names */
for (i = 0; i < sk_OPENSSL_STRING_num(canames); i++) {
catmp = (unsigned char *)sk_OPENSSL_STRING_value(canames, i);
X509_alias_set1(sk_X509_value(certs, i), catmp, -1);
}
if (csp_name && key)
EVP_PKEY_add1_attr_by_NID(key, NID_ms_csp_name,
MBSTRING_ASC, (unsigned char *)csp_name,
-1);
if (add_lmk && key)
EVP_PKEY_add1_attr_by_NID(key, NID_LocalKeySet, 0, NULL, -1);
if (!noprompt &&
EVP_read_pw_string(pass, sizeof pass, "Enter Export Password:",
1)) {
BIO_printf(bio_err, "Can't read Password\n");
goto export_end;
}
if (!twopass)
BUF_strlcpy(macpass, pass, sizeof macpass);
p12 = PKCS12_create(cpass, name, key, ucert, certs,
key_pbe, cert_pbe, iter, -1, keytype);
if (!p12) {
ERR_print_errors(bio_err);
goto export_end;
}
if (macalg) {
if (!opt_md(macalg, &macmd))
goto opthelp;
}
if (maciter != -1)
PKCS12_set_mac(p12, mpass, -1, NULL, 0, maciter, macmd);
assert(private);
i2d_PKCS12_bio(out, p12);
ret = 0;
export_end:
EVP_PKEY_free(key);
sk_X509_pop_free(certs, X509_free);
X509_free(ucert);
goto end;
}
if ((p12 = d2i_PKCS12_bio(in, NULL)) == NULL) {
ERR_print_errors(bio_err);
goto end;
}
if (!noprompt
&& EVP_read_pw_string(pass, sizeof pass, "Enter Import Password:",
0)) {
BIO_printf(bio_err, "Can't read Password\n");
goto end;
}
if (!twopass)
BUF_strlcpy(macpass, pass, sizeof macpass);
if ((options & INFO) && p12->mac)
BIO_printf(bio_err, "MAC Iteration %ld\n",
p12->mac->iter ? ASN1_INTEGER_get(p12->mac->iter) : 1);
if (macver) {
/* If we enter empty password try no password first */
if (!mpass[0] && PKCS12_verify_mac(p12, NULL, 0)) {
/* If mac and crypto pass the same set it to NULL too */
if (!twopass)
cpass = NULL;
} else if (!PKCS12_verify_mac(p12, mpass, -1)) {
BIO_printf(bio_err, "Mac verify error: invalid password?\n");
ERR_print_errors(bio_err);
goto end;
}
}
assert(private);
if (!dump_certs_keys_p12(out, p12, cpass, -1, options, passout, enc)) {
BIO_printf(bio_err, "Error outputting keys and certificates\n");
ERR_print_errors(bio_err);
goto end;
}
ret = 0;
end:
PKCS12_free(p12);
if (export_cert || inrand)
app_RAND_write_file(NULL);
BIO_free(in);
BIO_free_all(out);
sk_OPENSSL_STRING_free(canames);
OPENSSL_free(passin);
OPENSSL_free(passout);
return (ret);
}
int dump_certs_keys_p12(BIO *out, PKCS12 *p12, char *pass,
int passlen, int options, char *pempass,
const EVP_CIPHER *enc)
{
STACK_OF(PKCS7) *asafes = NULL;
STACK_OF(PKCS12_SAFEBAG) *bags;
int i, bagnid;
int ret = 0;
PKCS7 *p7;
if ((asafes = PKCS12_unpack_authsafes(p12)) == NULL)
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);
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(p7->d.encrypted->enc_data->algorithm);
}
bags = PKCS12_unpack_p7encdata(p7, pass, passlen);
} else
continue;
if (!bags)
goto err;
if (!dump_certs_pkeys_bags(out, bags, pass, passlen,
options, pempass, enc)) {
sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free);
goto err;
}
sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free);
bags = NULL;
}
ret = 1;
err:
sk_PKCS7_pop_free(asafes, PKCS7_free);
return ret;
}
int dump_certs_pkeys_bags(BIO *out, STACK_OF(PKCS12_SAFEBAG) *bags,
char *pass, int passlen, int options, char *pempass,
const EVP_CIPHER *enc)
{
int i;
for (i = 0; i < sk_PKCS12_SAFEBAG_num(bags); i++) {
if (!dump_certs_pkeys_bag(out,
sk_PKCS12_SAFEBAG_value(bags, i),
pass, passlen, options, pempass, enc))
return 0;
}
return 1;
}
int dump_certs_pkeys_bag(BIO *out, PKCS12_SAFEBAG *bag, char *pass,
int passlen, int options, char *pempass,
const EVP_CIPHER *enc)
{
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)) == NULL)
return 0;
print_attribs(out, p8->attributes, "Key Attributes");
PEM_write_bio_PrivateKey(out, pkey, enc, NULL, 0, NULL, pempass);
EVP_PKEY_free(pkey);
break;
case NID_pkcs8ShroudedKeyBag:
if (options & INFO) {
BIO_printf(bio_err, "Shrouded Keybag: ");
alg_print(bag->value.shkeybag->algor);
}
if (options & NOKEYS)
return 1;
print_attribs(out, bag->attrib, "Bag Attributes");
if ((p8 = PKCS12_decrypt_skey(bag, pass, passlen)) == NULL)
return 0;
if ((pkey = EVP_PKCS82PKEY(p8)) == NULL) {
PKCS8_PRIV_KEY_INFO_free(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, pempass);
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 = PKCS12_certbag2x509(bag)) == NULL)
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, pempass, enc);
default:
BIO_printf(bio_err, "Warning unsupported bag type: ");
i2a_ASN1_OBJECT(bio_err, bag->type);
BIO_printf(bio_err, "\n");
return 1;
}
return 1;
}
/* Given a single certificate return a verified chain or NULL if error */
/* Hope this is OK .... */
int get_cert_chain(X509 *cert, X509_STORE *store, STACK_OF(X509) **chain)
{
X509_STORE_CTX store_ctx;
STACK_OF(X509) *chn;
int i = 0;
/*
* FIXME: Should really check the return status of X509_STORE_CTX_init
* for an error, but how that fits into the return value of this function
* is less obvious.
*/
X509_STORE_CTX_init(&store_ctx, store, cert, NULL);
if (X509_verify_cert(&store_ctx) <= 0) {
i = X509_STORE_CTX_get_error(&store_ctx);
if (i == 0)
/*
* avoid returning 0 if X509_verify_cert() did not set an
* appropriate error value in the context
*/
i = -1;
chn = NULL;
goto err;
} else
chn = X509_STORE_CTX_get1_chain(&store_ctx);
err:
X509_STORE_CTX_cleanup(&store_ctx);
*chain = chn;
return i;
}
static int alg_print(X509_ALGOR *alg)
{
PBEPARAM *pbe;
const unsigned char *p = alg->parameter->value.sequence->data;
pbe = d2i_PBEPARAM(NULL, &p, alg->parameter->value.sequence->length);
if (!pbe)
return 1;
BIO_printf(bio_err, "%s, Iteration %ld\n",
OBJ_nid2ln(OBJ_obj2nid(alg->algorithm)),
ASN1_INTEGER_get(pbe->iter));
PBEPARAM_free(pbe);
return 1;
}
/* Load all certificates from a given file */
int cert_load(BIO *in, STACK_OF(X509) *sk)
{
int ret;
X509 *cert;
ret = 0;
while ((cert = PEM_read_bio_X509(in, NULL, NULL, NULL))) {
ret = 1;
sk_X509_push(sk, cert);
}
if (ret)
ERR_clear_error();
return ret;
}
/* Generalised attribute print: handle PKCS#8 and bag attributes */
int print_attribs(BIO *out, STACK_OF(X509_ATTRIBUTE) *attrlst,
const 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_X509_ATTRIBUTE_num(attrlst)) {
BIO_printf(out, "%s: <Empty Attributes>\n", name);
return 1;
}
BIO_printf(out, "%s\n", name);
for (i = 0; i < sk_X509_ATTRIBUTE_num(attrlst); i++) {
ASN1_OBJECT *attr_obj;
attr = sk_X509_ATTRIBUTE_value(attrlst, i);
attr_obj = X509_ATTRIBUTE_get0_object(attr);
attr_nid = OBJ_obj2nid(attr_obj);
BIO_printf(out, " ");
if (attr_nid == NID_undef) {
i2a_ASN1_OBJECT(out, attr_obj);
BIO_printf(out, ": ");
} else
BIO_printf(out, "%s: ", OBJ_nid2ln(attr_nid));
if (X509_ATTRIBUTE_count(attr)) {
av = X509_ATTRIBUTE_get0_type(attr, 0);
switch (av->type) {
case V_ASN1_BMPSTRING:
value = OPENSSL_uni2asc(av->value.bmpstring->data,
av->value.bmpstring->length);
BIO_printf(out, "%s\n", value);
OPENSSL_free(value);
break;
case V_ASN1_OCTET_STRING:
hex_prin(out, av->value.octet_string->data,
av->value.octet_string->length);
BIO_printf(out, "\n");
break;
case V_ASN1_BIT_STRING:
hex_prin(out, av->value.bit_string->data,
av->value.bit_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]);
}
static int set_pbe(int *ppbe, const char *str)
{
if (!str)
return 0;
if (strcmp(str, "NONE") == 0) {
*ppbe = -1;
return 1;
}
*ppbe = OBJ_txt2nid(str);
if (*ppbe == NID_undef) {
BIO_printf(bio_err, "Unknown PBE algorithm %s\n", str);
return 0;
}
return 1;
}
#endif
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