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/* $OpenBSD: pkcs8.c,v 1.12 2018/08/24 20:09:56 tb Exp $ */
/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
* project 1999-2004.
*/
/* ====================================================================
* 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 <string.h>
#include "apps.h"
#include "progs.h"
#include <openssl/err.h>
#include <openssl/evp.h>
#include <openssl/pem.h>
#include <openssl/pkcs12.h>
static struct {
const EVP_CIPHER *cipher;
char *infile;
int informat;
int iter;
int nocrypt;
char *outfile;
int outformat;
char *passargin;
char *passargout;
int pbe_nid;
int topk8;
} pkcs8_config;
static int
pkcs8_opt_v1(char *arg)
{
if ((pkcs8_config.pbe_nid = OBJ_txt2nid(arg)) == NID_undef) {
fprintf(stderr, "Unknown PBE algorithm '%s'\n", arg);
return (1);
}
return (0);
}
static int
pkcs8_opt_v2(char *arg)
{
if ((pkcs8_config.cipher = EVP_get_cipherbyname(arg)) == NULL) {
fprintf(stderr, "Unknown cipher '%s'\n", arg);
return (1);
}
return (0);
}
static struct option pkcs8_options[] = {
{
.name = "in",
.argname = "file",
.desc = "Input file (default stdin)",
.type = OPTION_ARG,
.opt.arg = &pkcs8_config.infile,
},
{
.name = "inform",
.argname = "format",
.desc = "Input format (DER or PEM (default))",
.type = OPTION_ARG_FORMAT,
.opt.value = &pkcs8_config.informat,
},
{
.name = "nocrypt",
.desc = "Use or expect unencrypted private key",
.type = OPTION_FLAG,
.opt.flag = &pkcs8_config.nocrypt,
},
{
.name = "noiter",
.desc = "Use 1 as iteration count",
.type = OPTION_VALUE,
.value = 1,
.opt.value = &pkcs8_config.iter,
},
{
.name = "out",
.argname = "file",
.desc = "Output file (default stdout)",
.type = OPTION_ARG,
.opt.arg = &pkcs8_config.outfile,
},
{
.name = "outform",
.argname = "format",
.desc = "Output format (DER or PEM (default))",
.type = OPTION_ARG_FORMAT,
.opt.value = &pkcs8_config.outformat,
},
{
.name = "passin",
.argname = "source",
.desc = "Input file passphrase source",
.type = OPTION_ARG,
.opt.arg = &pkcs8_config.passargin,
},
{
.name = "passout",
.argname = "source",
.desc = "Output file passphrase source",
.type = OPTION_ARG,
.opt.arg = &pkcs8_config.passargout,
},
{
.name = "topk8",
.desc = "Read traditional format key and write PKCS#8 format"
" key",
.type = OPTION_FLAG,
.opt.flag = &pkcs8_config.topk8,
},
{
.name = "v1",
.argname = "algorithm",
.desc = "Use PKCS#5 v1.5 or PKCS#12 with given algorithm",
.type = OPTION_ARG_FUNC,
.opt.argfunc = pkcs8_opt_v1,
},
{
.name = "v2",
.argname = "cipher",
.desc = "Use PKCS#5 v2.0 with given cipher",
.type = OPTION_ARG_FUNC,
.opt.argfunc = pkcs8_opt_v2,
},
{ NULL },
};
static void
pkcs8_usage()
{
fprintf(stderr, "usage: pkcs8 [-embed] [-in file] "
"[-inform fmt] [-nocrypt]\n"
" [-noiter] [-nooct] [-nsdb] [-out file] [-outform fmt] "
"[-passin src]\n"
" [-passout src] [-topk8] [-v1 alg] [-v2 alg]\n\n");
options_usage(pkcs8_options);
}
int
pkcs8_main(int argc, char **argv)
{
BIO *in = NULL, *out = NULL;
X509_SIG *p8 = NULL;
PKCS8_PRIV_KEY_INFO *p8inf = NULL;
EVP_PKEY *pkey = NULL;
char pass[50], *passin = NULL, *passout = NULL, *p8pass = NULL;
int ret = 1;
if (single_execution) {
if (pledge("stdio cpath wpath rpath tty", NULL) == -1) {
perror("pledge");
exit(1);
}
}
memset(&pkcs8_config, 0, sizeof(pkcs8_config));
pkcs8_config.iter = PKCS12_DEFAULT_ITER;
pkcs8_config.informat = FORMAT_PEM;
pkcs8_config.outformat = FORMAT_PEM;
pkcs8_config.pbe_nid = -1;
if (options_parse(argc, argv, pkcs8_options, NULL, NULL) != 0) {
pkcs8_usage();
return (1);
}
if (!app_passwd(bio_err, pkcs8_config.passargin,
pkcs8_config.passargout, &passin, &passout)) {
BIO_printf(bio_err, "Error getting passwords\n");
goto end;
}
if ((pkcs8_config.pbe_nid == -1) && !pkcs8_config.cipher)
pkcs8_config.pbe_nid = NID_pbeWithMD5AndDES_CBC;
if (pkcs8_config.infile) {
if (!(in = BIO_new_file(pkcs8_config.infile, "rb"))) {
BIO_printf(bio_err,
"Can't open input file '%s'\n",
pkcs8_config.infile);
goto end;
}
} else
in = BIO_new_fp(stdin, BIO_NOCLOSE);
if (pkcs8_config.outfile) {
if (!(out = BIO_new_file(pkcs8_config.outfile, "wb"))) {
BIO_printf(bio_err, "Can't open output file '%s'\n",
pkcs8_config.outfile);
goto end;
}
} else {
out = BIO_new_fp(stdout, BIO_NOCLOSE);
}
if (pkcs8_config.topk8) {
pkey = load_key(bio_err, pkcs8_config.infile,
pkcs8_config.informat, 1, passin, "key");
if (!pkey)
goto end;
if (!(p8inf = EVP_PKEY2PKCS8(pkey))) {
BIO_printf(bio_err, "Error converting key\n");
ERR_print_errors(bio_err);
goto end;
}
if (pkcs8_config.nocrypt) {
if (pkcs8_config.outformat == FORMAT_PEM)
PEM_write_bio_PKCS8_PRIV_KEY_INFO(out, p8inf);
else if (pkcs8_config.outformat == FORMAT_ASN1)
i2d_PKCS8_PRIV_KEY_INFO_bio(out, p8inf);
else {
BIO_printf(bio_err,
"Bad format specified for key\n");
goto end;
}
} else {
if (passout)
p8pass = passout;
else {
p8pass = pass;
if (EVP_read_pw_string(pass, sizeof pass,
"Enter Encryption Password:", 1))
goto end;
}
if (!(p8 = PKCS8_encrypt(pkcs8_config.pbe_nid,
pkcs8_config.cipher, p8pass, strlen(p8pass),
NULL, 0, pkcs8_config.iter, p8inf))) {
BIO_printf(bio_err, "Error encrypting key\n");
ERR_print_errors(bio_err);
goto end;
}
if (pkcs8_config.outformat == FORMAT_PEM)
PEM_write_bio_PKCS8(out, p8);
else if (pkcs8_config.outformat == FORMAT_ASN1)
i2d_PKCS8_bio(out, p8);
else {
BIO_printf(bio_err,
"Bad format specified for key\n");
goto end;
}
}
ret = 0;
goto end;
}
if (pkcs8_config.nocrypt) {
if (pkcs8_config.informat == FORMAT_PEM)
p8inf = PEM_read_bio_PKCS8_PRIV_KEY_INFO(in, NULL,
NULL, NULL);
else if (pkcs8_config.informat == FORMAT_ASN1)
p8inf = d2i_PKCS8_PRIV_KEY_INFO_bio(in, NULL);
else {
BIO_printf(bio_err, "Bad format specified for key\n");
goto end;
}
} else {
if (pkcs8_config.informat == FORMAT_PEM)
p8 = PEM_read_bio_PKCS8(in, NULL, NULL, NULL);
else if (pkcs8_config.informat == FORMAT_ASN1)
p8 = d2i_PKCS8_bio(in, NULL);
else {
BIO_printf(bio_err, "Bad format specified for key\n");
goto end;
}
if (!p8) {
BIO_printf(bio_err, "Error reading key\n");
ERR_print_errors(bio_err);
goto end;
}
if (passin)
p8pass = passin;
else {
p8pass = pass;
EVP_read_pw_string(pass, sizeof pass,
"Enter Password:", 0);
}
p8inf = PKCS8_decrypt(p8, p8pass, strlen(p8pass));
}
if (!p8inf) {
BIO_printf(bio_err, "Error decrypting key\n");
ERR_print_errors(bio_err);
goto end;
}
if (!(pkey = EVP_PKCS82PKEY(p8inf))) {
BIO_printf(bio_err, "Error converting key\n");
ERR_print_errors(bio_err);
goto end;
}
if (pkcs8_config.outformat == FORMAT_PEM)
PEM_write_bio_PrivateKey(out, pkey, NULL, NULL, 0, NULL,
passout);
else if (pkcs8_config.outformat == FORMAT_ASN1)
i2d_PrivateKey_bio(out, pkey);
else {
BIO_printf(bio_err, "Bad format specified for key\n");
goto end;
}
ret = 0;
end:
X509_SIG_free(p8);
PKCS8_PRIV_KEY_INFO_free(p8inf);
EVP_PKEY_free(pkey);
BIO_free_all(out);
BIO_free(in);
free(passin);
free(passout);
return ret;
}
|