X-Git-Url: https://git.openssl.org/?p=openssl.git;a=blobdiff_plain;f=apps%2Fgendsa.c;h=4c05493bfa5d92be32e3737294501818169b6832;hp=dc0b2165fd6d5fb55c8364a9e665f4c7c61e7b53;hb=12d56b2992ebd61e1b30c99ca1898dde42345cf7;hpb=74678cc2f8132ad34f7c33731c4765cf3083de8c diff --git a/apps/gendsa.c b/apps/gendsa.c index dc0b2165fd..4c05493bfa 100644 --- a/apps/gendsa.c +++ b/apps/gendsa.c @@ -1,232 +1,145 @@ -/* apps/gendsa.c */ -/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) - * All rights reserved. +/* + * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved. * - * This package is an SSL implementation written - * by Eric Young (eay@cryptsoft.com). - * The implementation was written so as to conform with Netscapes SSL. - * - * This library is free for commercial and non-commercial use as long as - * the following conditions are aheared to. The following conditions - * apply to all code found in this distribution, be it the RC4, RSA, - * lhash, DES, etc., code; not just the SSL code. The SSL documentation - * included with this distribution is covered by the same copyright terms - * except that the holder is Tim Hudson (tjh@cryptsoft.com). - * - * Copyright remains Eric Young's, and as such any Copyright notices in - * the code are not to be removed. - * If this package is used in a product, Eric Young should be given attribution - * as the author of the parts of the library used. - * This can be in the form of a textual message at program startup or - * in documentation (online or textual) provided with the package. - * - * 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 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 acknowledgement: - * "This product includes cryptographic software written by - * Eric Young (eay@cryptsoft.com)" - * The word 'cryptographic' can be left out if the rouines from the library - * being used are not cryptographic related :-). - * 4. If you include any Windows specific code (or a derivative thereof) from - * the apps directory (application code) you must include an acknowledgement: - * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" - * - * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND - * ANY EXPRESS 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 AUTHOR OR 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. - * - * The licence and distribution terms for any publically available version or - * derivative of this code cannot be changed. i.e. this code cannot simply be - * copied and put under another distribution licence - * [including the GNU Public Licence.] + * Licensed under the OpenSSL license (the "License"). You may not use + * this file except in compliance with the License. You can obtain a copy + * in the file LICENSE in the source distribution or at + * https://www.openssl.org/source/license.html */ -#ifndef NO_DSA -#include -#include -#include -#include -#include "apps.h" -#include -#include -#include -#include -#include -#include -#include - -#define DEFBITS 512 -#undef PROG -#define PROG gendsa_main - -static long dsa_load_rand(char *names); -int MAIN(int argc, char **argv) - { - char buffer[200]; - DSA *dsa=NULL; - int ret=1; - char *outfile=NULL; - char *inrand=NULL,*randfile,*dsaparams=NULL; - BIO *out=NULL,*in=NULL; - EVP_CIPHER *enc=NULL; - - apps_startup(); - - if (bio_err == NULL) - if ((bio_err=BIO_new(BIO_s_file())) != NULL) - BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT); - - argv++; - argc--; - for (;;) - { - if (argc <= 0) break; - if (strcmp(*argv,"-out") == 0) - { - if (--argc < 1) goto bad; - outfile= *(++argv); - } - else if (strcmp(*argv,"-rand") == 0) - { - if (--argc < 1) goto bad; - inrand= *(++argv); - } - else if (strcmp(*argv,"-") == 0) - goto bad; -#ifndef NO_DES - else if (strcmp(*argv,"-des") == 0) - enc=EVP_des_cbc(); - else if (strcmp(*argv,"-des3") == 0) - enc=EVP_des_ede3_cbc(); -#endif -#ifndef NO_IDEA - else if (strcmp(*argv,"-idea") == 0) - enc=EVP_idea_cbc(); -#endif - else if (dsaparams == NULL) - { - dsaparams = *argv; - } - else - goto bad; - argv++; - argc--; - } - - if (dsaparams == NULL) - { -bad: - BIO_printf(bio_err,"usage: gendsa [args] dsaparam-file\n"); - BIO_printf(bio_err," -out file - output the key to 'file'\n"); -#ifndef NO_DES - BIO_printf(bio_err," -des - encrypt the generated key with DES in cbc mode\n"); - BIO_printf(bio_err," -des3 - encrypt the generated key with DES in ede cbc mode (168 bit key)\n"); -#endif -#ifndef NO_IDEA - BIO_printf(bio_err," -idea - encrypt the generated key with IDEA in cbc mode\n"); -#endif - BIO_printf(bio_err," -rand file:file:...\n"); - BIO_printf(bio_err," - load the file (or the files in the directory) into\n"); - BIO_printf(bio_err," the random number generator\n"); - BIO_printf(bio_err," dsaparam-file\n"); - BIO_printf(bio_err," - a DSA parameter file as generated by the dsaparam command\n"); - goto end; - } - - in=BIO_new(BIO_s_file()); - if (!(BIO_read_filename(in,dsaparams))) - { - perror(dsaparams); - goto end; - } - - if ((dsa=PEM_read_bio_DSAparams(in,NULL,NULL,NULL)) == NULL) - { - BIO_printf(bio_err,"unable to load DSA parameter file\n"); - goto end; - } - BIO_free(in); - - out=BIO_new(BIO_s_file()); - if (out == NULL) goto end; - - if (outfile == NULL) - BIO_set_fp(out,stdout,BIO_NOCLOSE); - else - { - if (BIO_write_filename(out,outfile) <= 0) - { - perror(outfile); - goto end; - } - } - - randfile=RAND_file_name(buffer,200); - if ((randfile == NULL)|| !RAND_load_file(randfile,1024L*1024L)) - BIO_printf(bio_err,"unable to load 'random state'\n"); - - if (inrand == NULL) - BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n"); - else - { - BIO_printf(bio_err,"%ld semi-random bytes loaded\n", - dsa_load_rand(inrand)); - } - - BIO_printf(bio_err,"Generating DSA key, %d bits\n", - BN_num_bits(dsa->p)); - if (!DSA_generate_key(dsa)) goto end; - - if (randfile == NULL) - BIO_printf(bio_err,"unable to write 'random state'\n"); - else - RAND_write_file(randfile); - - if (!PEM_write_bio_DSAPrivateKey(out,dsa,enc,NULL,0,NULL,NULL)) - goto end; - ret=0; -end: - if (ret != 0) - ERR_print_errors(bio_err); - if (out != NULL) BIO_free(out); - if (dsa != NULL) DSA_free(dsa); - EXIT(ret); - } - -static long dsa_load_rand(char *name) - { - char *p,*n; - int last; - long tot=0; - - for (;;) - { - last=0; - for (p=name; ((*p != '\0') && (*p != LIST_SEPARATOR_CHAR)); p++); - if (*p == '\0') last=1; - *p='\0'; - n=name; - name=p+1; - if (*n == '\0') break; - - tot+=RAND_load_file(n,1); - if (last) break; - } - return(tot); - } +#include +#ifdef OPENSSL_NO_DSA +NON_EMPTY_TRANSLATION_UNIT +#else + +# include +# include +# include +# include +# include "apps.h" +# include +# include +# include +# include +# include +# include + +typedef enum OPTION_choice { + OPT_ERR = -1, OPT_EOF = 0, OPT_HELP, + OPT_OUT, OPT_PASSOUT, OPT_ENGINE, OPT_RAND, OPT_CIPHER +} OPTION_CHOICE; + +OPTIONS gendsa_options[] = { + {OPT_HELP_STR, 1, '-', "Usage: %s [args] dsaparam-file\n"}, + {OPT_HELP_STR, 1, '-', "Valid options are:\n"}, + {"help", OPT_HELP, '-', "Display this summary"}, + {"out", OPT_OUT, '>', "Output the key to the specified file"}, + {"passout", OPT_PASSOUT, 's', "Output file pass phrase source"}, + {"rand", OPT_RAND, 's', + "Load the file(s) into the random number generator"}, + {"", OPT_CIPHER, '-', "Encrypt the output with any supported cipher"}, +# ifndef OPENSSL_NO_ENGINE + {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"}, +# endif + {NULL} +}; + +int gendsa_main(int argc, char **argv) +{ + BIO *out = NULL, *in = NULL; + DSA *dsa = NULL; + const EVP_CIPHER *enc = NULL; + char *inrand = NULL, *dsaparams = NULL; + char *outfile = NULL, *passoutarg = NULL, *passout = NULL, *prog; + OPTION_CHOICE o; + int ret = 1, private = 0; + const BIGNUM *p = NULL; + + prog = opt_init(argc, argv, gendsa_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: + ret = 0; + opt_help(gendsa_options); + goto end; + case OPT_OUT: + outfile = opt_arg(); + break; + case OPT_PASSOUT: + passoutarg = opt_arg(); + break; + case OPT_ENGINE: + (void)setup_engine(opt_arg(), 0); + break; + case OPT_RAND: + inrand = opt_arg(); + break; + case OPT_CIPHER: + if (!opt_cipher(opt_unknown(), &enc)) + goto end; + break; + } + } + argc = opt_num_rest(); + argv = opt_rest(); + private = 1; + + if (argc != 1) + goto opthelp; + dsaparams = *argv; + + if (!app_passwd(NULL, passoutarg, NULL, &passout)) { + BIO_printf(bio_err, "Error getting password\n"); + goto end; + } + + in = bio_open_default(dsaparams, 'r', FORMAT_PEM); + if (in == NULL) + goto end2; + + if ((dsa = PEM_read_bio_DSAparams(in, NULL, NULL, NULL)) == NULL) { + BIO_printf(bio_err, "unable to load DSA parameter file\n"); + goto end; + } + BIO_free(in); + in = NULL; + + out = bio_open_owner(outfile, FORMAT_PEM, private); + if (out == NULL) + goto end2; + + if (!app_RAND_load_file(NULL, 1) && inrand == NULL) { + BIO_printf(bio_err, + "warning, not much extra random data, consider using the -rand option\n"); + } + if (inrand != NULL) + BIO_printf(bio_err, "%ld semi-random bytes loaded\n", + app_RAND_load_files(inrand)); + + DSA_get0_pqg(dsa, &p, NULL, NULL); + BIO_printf(bio_err, "Generating DSA key, %d bits\n", BN_num_bits(p)); + if (!DSA_generate_key(dsa)) + goto end; + + app_RAND_write_file(NULL); + + assert(private); + if (!PEM_write_bio_DSAPrivateKey(out, dsa, enc, NULL, 0, NULL, passout)) + goto end; + ret = 0; + end: + if (ret != 0) + ERR_print_errors(bio_err); + end2: + BIO_free(in); + BIO_free_all(out); + DSA_free(dsa); + OPENSSL_free(passout); + return (ret); +} #endif