299 lines
8.7 KiB
C
299 lines
8.7 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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#ifndef 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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#undef PROG
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#define PROG dsa_main
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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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* -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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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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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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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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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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{
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if (strcmp(*argv,"-inform") == 0)
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{
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if (--argc < 1) goto bad;
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informat=str2fmt(*(++argv));
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}
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else if (strcmp(*argv,"-outform") == 0)
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{
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if (--argc < 1) goto bad;
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outformat=str2fmt(*(++argv));
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}
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else if (strcmp(*argv,"-in") == 0)
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{
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if (--argc < 1) goto bad;
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infile= *(++argv);
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}
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else if (strcmp(*argv,"-out") == 0)
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{
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if (--argc < 1) goto bad;
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outfile= *(++argv);
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}
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else if (strcmp(*argv,"-passin") == 0)
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{
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if (--argc < 1) goto bad;
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passargin= *(++argv);
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}
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else if (strcmp(*argv,"-passout") == 0)
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{
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if (--argc < 1) goto bad;
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passargout= *(++argv);
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}
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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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{
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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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{
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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," -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," -passout arg output file pass phrase source\n");
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BIO_printf(bio_err," -des encrypt PEM output with cbc des\n");
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BIO_printf(bio_err," -des3 encrypt PEM output with ede cbc des using 168 bit key\n");
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#ifndef NO_IDEA
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BIO_printf(bio_err," -idea encrypt PEM output with cbc idea\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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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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{
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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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{
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if (BIO_read_filename(in,infile) <= 0)
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{
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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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if (informat == FORMAT_ASN1) {
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if(pubin) dsa=d2i_DSA_PUBKEY_bio(in,NULL);
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else dsa=d2i_DSAPrivateKey_bio(in,NULL);
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} else if (informat == FORMAT_PEM) {
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if(pubin) dsa=PEM_read_bio_DSA_PUBKEY(in,NULL, NULL, NULL);
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else dsa=PEM_read_bio_DSAPrivateKey(in,NULL,NULL,passin);
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} else
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{
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BIO_printf(bio_err,"bad input format specified for key\n");
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goto end;
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}
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if (dsa == NULL)
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{
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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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{
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BIO_set_fp(out,stdout,BIO_NOCLOSE);
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#ifdef 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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}
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else
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{
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if (BIO_write_filename(out,outfile) <= 0)
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{
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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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{
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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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{
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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) 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) i=i2d_DSA_PUBKEY_bio(out,dsa);
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else 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 i=PEM_write_bio_DSAPrivateKey(out,dsa,enc,
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NULL,0,NULL, passout);
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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)
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{
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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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}
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else
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ret=0;
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end:
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if(in != NULL) BIO_free(in);
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if(out != NULL) BIO_free_all(out);
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if(dsa != NULL) DSA_free(dsa);
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if(passin) OPENSSL_free(passin);
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if(passout) OPENSSL_free(passout);
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EXIT(ret);
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}
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#endif
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