374 lines
12 KiB
C
374 lines
12 KiB
C
/* apps/dsa.c */
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/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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* All rights reserved.
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*
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* This package is an SSL implementation written
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* by Eric Young (eay@cryptsoft.com).
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* The implementation was written so as to conform with Netscapes SSL.
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*
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* This library is free for commercial and non-commercial use as long as
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* the following conditions are aheared to. The following conditions
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* apply to all code found in this distribution, be it the RC4, RSA,
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* lhash, DES, etc., code; not just the SSL code. The SSL documentation
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* included with this distribution is covered by the same copyright terms
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* except that the holder is Tim Hudson (tjh@cryptsoft.com).
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*
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* Copyright remains Eric Young's, and as such any Copyright notices in
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* the code are not to be removed.
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* If this package is used in a product, Eric Young should be given attribution
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* as the author of the parts of the library used.
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* This can be in the form of a textual message at program startup or
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* in documentation (online or textual) provided with the package.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* "This product includes cryptographic software written by
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* Eric Young (eay@cryptsoft.com)"
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* The word 'cryptographic' can be left out if the rouines from the library
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* being used are not cryptographic related :-).
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* 4. If you include any Windows specific code (or a derivative thereof) from
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* the apps directory (application code) you must include an acknowledgement:
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* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
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*
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* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* The licence and distribution terms for any publically available version or
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* derivative of this code cannot be changed. i.e. this code cannot simply be
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* copied and put under another distribution licence
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* [including the GNU Public Licence.]
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*/
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#include <openssl/opensslconf.h> /* for OPENSSL_NO_DSA */
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#ifndef OPENSSL_NO_DSA
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# include <stdio.h>
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# include <stdlib.h>
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# include <string.h>
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# include <time.h>
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# include "apps.h"
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# include <openssl/bio.h>
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# include <openssl/err.h>
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# include <openssl/dsa.h>
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# include <openssl/evp.h>
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# include <openssl/x509.h>
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# include <openssl/pem.h>
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# include <openssl/bn.h>
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# undef PROG
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# define PROG dsa_main
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/*-
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* -inform arg - input format - default PEM (one of DER, NET or PEM)
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* -outform arg - output format - default PEM
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* -in arg - input file - default stdin
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* -out arg - output file - default stdout
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* -des - encrypt output if PEM format with DES in cbc mode
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* -des3 - encrypt output if PEM format
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* -idea - encrypt output if PEM format
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* -aes128 - encrypt output if PEM format
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* -aes192 - encrypt output if PEM format
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* -aes256 - encrypt output if PEM format
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* -camellia128 - encrypt output if PEM format
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* -camellia192 - encrypt output if PEM format
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* -camellia256 - encrypt output if PEM format
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* -seed - encrypt output if PEM format
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* -text - print a text version
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* -modulus - print the DSA public key
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*/
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int MAIN(int, char **);
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int MAIN(int argc, char **argv)
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{
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ENGINE *e = NULL;
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int ret = 1;
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DSA *dsa = NULL;
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int i, badops = 0;
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const EVP_CIPHER *enc = NULL;
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BIO *in = NULL, *out = NULL;
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int informat, outformat, text = 0, noout = 0;
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int pubin = 0, pubout = 0;
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char *infile, *outfile, *prog;
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# ifndef OPENSSL_NO_ENGINE
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char *engine;
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# endif
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char *passargin = NULL, *passargout = NULL;
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char *passin = NULL, *passout = NULL;
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int modulus = 0;
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int pvk_encr = 2;
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apps_startup();
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if (bio_err == NULL)
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if ((bio_err = BIO_new(BIO_s_file())) != NULL)
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BIO_set_fp(bio_err, stderr, BIO_NOCLOSE | BIO_FP_TEXT);
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if (!load_config(bio_err, NULL))
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goto end;
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# ifndef OPENSSL_NO_ENGINE
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engine = NULL;
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# endif
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infile = NULL;
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outfile = NULL;
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informat = FORMAT_PEM;
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outformat = FORMAT_PEM;
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prog = argv[0];
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argc--;
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argv++;
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while (argc >= 1) {
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if (strcmp(*argv, "-inform") == 0) {
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if (--argc < 1)
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goto bad;
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informat = str2fmt(*(++argv));
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} else if (strcmp(*argv, "-outform") == 0) {
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if (--argc < 1)
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goto bad;
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outformat = str2fmt(*(++argv));
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} else if (strcmp(*argv, "-in") == 0) {
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if (--argc < 1)
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goto bad;
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infile = *(++argv);
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} else if (strcmp(*argv, "-out") == 0) {
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if (--argc < 1)
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goto bad;
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outfile = *(++argv);
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} else if (strcmp(*argv, "-passin") == 0) {
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if (--argc < 1)
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goto bad;
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passargin = *(++argv);
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} else if (strcmp(*argv, "-passout") == 0) {
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if (--argc < 1)
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goto bad;
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passargout = *(++argv);
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}
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# ifndef OPENSSL_NO_ENGINE
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else if (strcmp(*argv, "-engine") == 0) {
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if (--argc < 1)
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goto bad;
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engine = *(++argv);
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}
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# endif
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else if (strcmp(*argv, "-pvk-strong") == 0)
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pvk_encr = 2;
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else if (strcmp(*argv, "-pvk-weak") == 0)
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pvk_encr = 1;
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else if (strcmp(*argv, "-pvk-none") == 0)
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pvk_encr = 0;
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else if (strcmp(*argv, "-noout") == 0)
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noout = 1;
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else if (strcmp(*argv, "-text") == 0)
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text = 1;
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else if (strcmp(*argv, "-modulus") == 0)
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modulus = 1;
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else if (strcmp(*argv, "-pubin") == 0)
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pubin = 1;
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else if (strcmp(*argv, "-pubout") == 0)
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pubout = 1;
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else if ((enc = EVP_get_cipherbyname(&(argv[0][1]))) == NULL) {
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BIO_printf(bio_err, "unknown option %s\n", *argv);
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badops = 1;
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break;
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}
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argc--;
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argv++;
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}
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if (badops) {
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bad:
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BIO_printf(bio_err, "%s [options] <infile >outfile\n", prog);
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BIO_printf(bio_err, "where options are\n");
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BIO_printf(bio_err, " -inform arg input format - DER or PEM\n");
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BIO_printf(bio_err, " -outform arg output format - DER or PEM\n");
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BIO_printf(bio_err, " -in arg input file\n");
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BIO_printf(bio_err,
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" -passin arg input file pass phrase source\n");
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BIO_printf(bio_err, " -out arg output file\n");
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BIO_printf(bio_err,
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" -passout arg output file pass phrase source\n");
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# ifndef OPENSSL_NO_ENGINE
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BIO_printf(bio_err,
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" -engine e use engine e, possibly a hardware device.\n");
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# endif
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BIO_printf(bio_err,
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" -des encrypt PEM output with cbc des\n");
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BIO_printf(bio_err,
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" -des3 encrypt PEM output with ede cbc des using 168 bit key\n");
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# ifndef OPENSSL_NO_IDEA
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BIO_printf(bio_err,
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" -idea encrypt PEM output with cbc idea\n");
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# endif
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# ifndef OPENSSL_NO_AES
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BIO_printf(bio_err, " -aes128, -aes192, -aes256\n");
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BIO_printf(bio_err,
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" encrypt PEM output with cbc aes\n");
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# endif
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# ifndef OPENSSL_NO_CAMELLIA
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BIO_printf(bio_err, " -camellia128, -camellia192, -camellia256\n");
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BIO_printf(bio_err,
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" encrypt PEM output with cbc camellia\n");
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# endif
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# ifndef OPENSSL_NO_SEED
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BIO_printf(bio_err,
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" -seed encrypt PEM output with cbc seed\n");
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# endif
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BIO_printf(bio_err, " -text print the key in text\n");
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BIO_printf(bio_err, " -noout don't print key out\n");
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BIO_printf(bio_err, " -modulus print the DSA public value\n");
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goto end;
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}
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ERR_load_crypto_strings();
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# ifndef OPENSSL_NO_ENGINE
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e = setup_engine(bio_err, engine, 0);
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# endif
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if (!app_passwd(bio_err, passargin, passargout, &passin, &passout)) {
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BIO_printf(bio_err, "Error getting passwords\n");
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goto end;
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}
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in = BIO_new(BIO_s_file());
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out = BIO_new(BIO_s_file());
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if ((in == NULL) || (out == NULL)) {
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ERR_print_errors(bio_err);
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goto end;
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}
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if (infile == NULL)
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BIO_set_fp(in, stdin, BIO_NOCLOSE);
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else {
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if (BIO_read_filename(in, infile) <= 0) {
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perror(infile);
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goto end;
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}
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}
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BIO_printf(bio_err, "read DSA key\n");
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{
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EVP_PKEY *pkey;
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if (pubin)
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pkey = load_pubkey(bio_err, infile, informat, 1,
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passin, e, "Public Key");
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else
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pkey = load_key(bio_err, infile, informat, 1,
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passin, e, "Private Key");
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if (pkey) {
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dsa = EVP_PKEY_get1_DSA(pkey);
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EVP_PKEY_free(pkey);
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}
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}
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if (dsa == NULL) {
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BIO_printf(bio_err, "unable to load Key\n");
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ERR_print_errors(bio_err);
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goto end;
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}
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if (outfile == NULL) {
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BIO_set_fp(out, stdout, BIO_NOCLOSE);
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# ifdef OPENSSL_SYS_VMS
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{
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BIO *tmpbio = BIO_new(BIO_f_linebuffer());
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out = BIO_push(tmpbio, out);
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}
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# endif
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} else {
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if (BIO_write_filename(out, outfile) <= 0) {
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perror(outfile);
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goto end;
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}
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}
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if (text)
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if (!DSA_print(out, dsa, 0)) {
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perror(outfile);
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ERR_print_errors(bio_err);
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goto end;
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}
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if (modulus) {
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fprintf(stdout, "Public Key=");
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BN_print(out, dsa->pub_key);
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fprintf(stdout, "\n");
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}
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if (noout)
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goto end;
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BIO_printf(bio_err, "writing DSA key\n");
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if (outformat == FORMAT_ASN1) {
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if (pubin || pubout)
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i = i2d_DSA_PUBKEY_bio(out, dsa);
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else
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i = i2d_DSAPrivateKey_bio(out, dsa);
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} else if (outformat == FORMAT_PEM) {
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if (pubin || pubout)
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i = PEM_write_bio_DSA_PUBKEY(out, dsa);
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else
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i = PEM_write_bio_DSAPrivateKey(out, dsa, enc,
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NULL, 0, NULL, passout);
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# if !defined(OPENSSL_NO_RSA) && !defined(OPENSSL_NO_RC4)
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} else if (outformat == FORMAT_MSBLOB || outformat == FORMAT_PVK) {
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EVP_PKEY *pk;
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pk = EVP_PKEY_new();
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EVP_PKEY_set1_DSA(pk, dsa);
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if (outformat == FORMAT_PVK)
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i = i2b_PVK_bio(out, pk, pvk_encr, 0, passout);
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else if (pubin || pubout)
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i = i2b_PublicKey_bio(out, pk);
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else
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i = i2b_PrivateKey_bio(out, pk);
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EVP_PKEY_free(pk);
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# endif
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} else {
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BIO_printf(bio_err, "bad output format specified for outfile\n");
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goto end;
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}
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if (i <= 0) {
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BIO_printf(bio_err, "unable to write private key\n");
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ERR_print_errors(bio_err);
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} else
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ret = 0;
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end:
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if (in != NULL)
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BIO_free(in);
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if (out != NULL)
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BIO_free_all(out);
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if (dsa != NULL)
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DSA_free(dsa);
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if (passin)
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OPENSSL_free(passin);
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if (passout)
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OPENSSL_free(passout);
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apps_shutdown();
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OPENSSL_EXIT(ret);
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}
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#else /* !OPENSSL_NO_DSA */
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# if PEDANTIC
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static void *dummy = &dummy;
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# endif
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#endif
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