source: trunk/third/openssl/apps/spkac.c @ 15530

/* apps/spkac.c */

/* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
 * project 1999. Based on an original idea by Massimiliano Pala
 * (madwolf@openca.org).
 */
/* ====================================================================
 * 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 <time.h>
#include "apps.h"
#include <openssl/bio.h>
#include <openssl/conf.h>
#include <openssl/err.h>
#include <openssl/evp.h>
#include <openssl/lhash.h>
#include <openssl/x509.h>
#include <openssl/pem.h>

#undef PROG
#define PROG    spkac_main

/* -in arg      - input file - default stdin
 * -out arg     - output file - default stdout
 */

int MAIN(int, char **);

int MAIN(int argc, char **argv)
        {
        int i,badops=0, ret = 1;
        BIO *in = NULL,*out = NULL, *key = NULL;
        int verify=0,noout=0,pubkey=0;
        char *infile = NULL,*outfile = NULL,*prog;
        char *passargin = NULL, *passin = NULL;
        char *spkac = "SPKAC", *spksect = "default", *spkstr = NULL;
        char *challenge = NULL, *keyfile = NULL;
        LHASH *conf = NULL;
        NETSCAPE_SPKI *spki = NULL;
        EVP_PKEY *pkey = NULL;

        apps_startup();

        if (!bio_err) bio_err = BIO_new_fp(stderr, BIO_NOCLOSE);

        prog=argv[0];
        argc--;
        argv++;
        while (argc >= 1)
                {
                if (strcmp(*argv,"-in") == 0)
                        {
                        if (--argc < 1) goto bad;
                        infile= *(++argv);
                        }
                else if (strcmp(*argv,"-out") == 0)
                        {
                        if (--argc < 1) goto bad;
                        outfile= *(++argv);
                        }
                else if (strcmp(*argv,"-passin") == 0)
                        {
                        if (--argc < 1) goto bad;
                        passargin= *(++argv);
                        }
                else if (strcmp(*argv,"-key") == 0)
                        {
                        if (--argc < 1) goto bad;
                        keyfile= *(++argv);
                        }
                else if (strcmp(*argv,"-challenge") == 0)
                        {
                        if (--argc < 1) goto bad;
                        challenge= *(++argv);
                        }
                else if (strcmp(*argv,"-spkac") == 0)
                        {
                        if (--argc < 1) goto bad;
                        spkac= *(++argv);
                        }
                else if (strcmp(*argv,"-spksect") == 0)
                        {
                        if (--argc < 1) goto bad;
                        spksect= *(++argv);
                        }
                else if (strcmp(*argv,"-noout") == 0)
                        noout=1;
                else if (strcmp(*argv,"-pubkey") == 0)
                        pubkey=1;
                else if (strcmp(*argv,"-verify") == 0)
                        verify=1;
                else badops = 1;
                argc--;
                argv++;
                }

        if (badops)
                {
bad:
                BIO_printf(bio_err,"%s [options]\n",prog);
                BIO_printf(bio_err,"where options are\n");
                BIO_printf(bio_err," -in arg        input file\n");
                BIO_printf(bio_err," -out arg       output file\n");
                BIO_printf(bio_err," -key arg       create SPKAC using private key\n");
                BIO_printf(bio_err," -passin arg    input file pass phrase source\n");
                BIO_printf(bio_err," -challenge arg challenge string\n");
                BIO_printf(bio_err," -spkac arg     alternative SPKAC name\n");
                BIO_printf(bio_err," -noout         don't print SPKAC\n");
                BIO_printf(bio_err," -pubkey        output public key\n");
                BIO_printf(bio_err," -verify        verify SPKAC signature\n");
                goto end;
                }

        ERR_load_crypto_strings();
        if(!app_passwd(bio_err, passargin, NULL, &passin, NULL)) {
                BIO_printf(bio_err, "Error getting password\n");
                goto end;
        }

        if(keyfile) {
                if(strcmp(keyfile, "-")) key = BIO_new_file(keyfile, "r");
                else key = BIO_new_fp(stdin, BIO_NOCLOSE);
                if(!key) {
                        BIO_printf(bio_err, "Error opening key file\n");
                        ERR_print_errors(bio_err);
                        goto end;
                }
                pkey = PEM_read_bio_PrivateKey(key, NULL, NULL, passin);
                if(!pkey) {
                        BIO_printf(bio_err, "Error reading private key\n");
                        ERR_print_errors(bio_err);
                        goto end;
                }
                spki = NETSCAPE_SPKI_new();
                if(challenge) ASN1_STRING_set(spki->spkac->challenge,
                                                 challenge, strlen(challenge));
                NETSCAPE_SPKI_set_pubkey(spki, pkey);
                NETSCAPE_SPKI_sign(spki, pkey, EVP_md5());
                spkstr = NETSCAPE_SPKI_b64_encode(spki);

                if (outfile) out = BIO_new_file(outfile, "w");
                else {
                        out = BIO_new_fp(stdout, BIO_NOCLOSE);
#ifdef VMS
                        {
                            BIO *tmpbio = BIO_new(BIO_f_linebuffer());
                            out = BIO_push(tmpbio, out);
                        }
#endif
                }

                if(!out) {
                        BIO_printf(bio_err, "Error opening output file\n");
                        ERR_print_errors(bio_err);
                        goto end;
                }
                BIO_printf(out, "SPKAC=%s\n", spkstr);
                OPENSSL_free(spkstr);
                ret = 0;
                goto end;
        }

        

        if (infile) in = BIO_new_file(infile, "r");
        else in = BIO_new_fp(stdin, BIO_NOCLOSE);

        if(!in) {
                BIO_printf(bio_err, "Error opening input file\n");
                ERR_print_errors(bio_err);
                goto end;
        }

        conf = CONF_load_bio(NULL, in, NULL);

        if(!conf) {
                BIO_printf(bio_err, "Error parsing config file\n");
                ERR_print_errors(bio_err);
                goto end;
        }

        spkstr = CONF_get_string(conf, spksect, spkac);
                
        if(!spkstr) {
                BIO_printf(bio_err, "Can't find SPKAC called \"%s\"\n", spkac);
                ERR_print_errors(bio_err);
                goto end;
        }

        spki = NETSCAPE_SPKI_b64_decode(spkstr, -1);
        
        if(!spki) {
                BIO_printf(bio_err, "Error loading SPKAC\n");
                ERR_print_errors(bio_err);
                goto end;
        }

        if (outfile) out = BIO_new_file(outfile, "w");
        else {
                out = BIO_new_fp(stdout, BIO_NOCLOSE);
#ifdef VMS
                {
                    BIO *tmpbio = BIO_new(BIO_f_linebuffer());
                    out = BIO_push(tmpbio, out);
                }
#endif
        }

        if(!out) {
                BIO_printf(bio_err, "Error opening output file\n");
                ERR_print_errors(bio_err);
                goto end;
        }

        if(!noout) NETSCAPE_SPKI_print(out, spki);
        pkey = NETSCAPE_SPKI_get_pubkey(spki);
        if(verify) {
                i = NETSCAPE_SPKI_verify(spki, pkey);
                if(i) BIO_printf(bio_err, "Signature OK\n");
                else {
                        BIO_printf(bio_err, "Signature Failure\n");
                        ERR_print_errors(bio_err);
                        goto end;
                }
        }
        if(pubkey) PEM_write_bio_PUBKEY(out, pkey);

        ret = 0;

end:
        CONF_free(conf);
        NETSCAPE_SPKI_free(spki);
        BIO_free(in);
        BIO_free_all(out);
        BIO_free(key);
        EVP_PKEY_free(pkey);
        if(passin) OPENSSL_free(passin);
        EXIT(ret);
        }