X-Git-Url: https://git.openssl.org/?p=openssl.git;a=blobdiff_plain;f=apps%2Fdhparam.c;h=13f76754d27cbe027558b9170f29032fd65f7529;hp=79c0d64c519eeafe0c9153b33fa445485fc09f58;hb=46d085096c6ead624c61e4b8b301421301511e64;hpb=2ca873e8d898e8a232ea707227400213980059a4;ds=sidebyside diff --git a/apps/dhparam.c b/apps/dhparam.c index 79c0d64c51..13f76754d2 100644 --- a/apps/dhparam.c +++ b/apps/dhparam.c @@ -1,565 +1,379 @@ -/* apps/dhparam.c */ -/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) - * All rights reserved. +/* + * Copyright 1995-2018 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 */ -/* ==================================================================== - * Copyright (c) 1998-2000 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 - * openssl-core@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 /* for OPENSSL_NO_DH */ -#ifndef OPENSSL_NO_DH -#include -#include -#include -#include -#include "apps.h" -#include -#include -#include -#include -#include -#include -#ifndef OPENSSL_NO_DSA -#include -#endif - -#undef PROG -#define PROG dhparam_main - -#define DEFBITS 512 - -/* -inform arg - input format - default PEM (DER or PEM) - * -outform arg - output format - default PEM - * -in arg - input file - default stdin - * -out arg - output file - default stdout - * -dsaparam - read or generate DSA parameters, convert to DH - * -check - check the parameters are ok - * -noout - * -text - * -C - */ - -static int MS_CALLBACK dh_cb(int p, int n, BN_GENCB *cb); - -int MAIN(int, char **); - -int MAIN(int argc, char **argv) - { - DH *dh=NULL; - int i,badops=0,text=0; -#ifndef OPENSSL_NO_DSA - int dsaparam=0; -#endif - BIO *in=NULL,*out=NULL; - int informat,outformat,check=0,noout=0,C=0,ret=1; - char *infile,*outfile,*prog; - char *inrand=NULL; -#ifndef OPENSSL_NO_ENGINE - char *engine=NULL; -#endif - int num = 0, g = 0; - - 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); - - if (!load_config(bio_err, NULL)) - goto end; - - infile=NULL; - outfile=NULL; - informat=FORMAT_PEM; - outformat=FORMAT_PEM; - - prog=argv[0]; - argc--; - argv++; - while (argc >= 1) - { - if (strcmp(*argv,"-inform") == 0) - { - if (--argc < 1) goto bad; - informat=str2fmt(*(++argv)); - } - else if (strcmp(*argv,"-outform") == 0) - { - if (--argc < 1) goto bad; - outformat=str2fmt(*(++argv)); - } - else 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); - } -#ifndef OPENSSL_NO_ENGINE - else if (strcmp(*argv,"-engine") == 0) - { - if (--argc < 1) goto bad; - engine= *(++argv); - } -#endif - else if (strcmp(*argv,"-check") == 0) - check=1; - else if (strcmp(*argv,"-text") == 0) - text=1; -#ifndef OPENSSL_NO_DSA - else if (strcmp(*argv,"-dsaparam") == 0) - dsaparam=1; -#endif - else if (strcmp(*argv,"-C") == 0) - C=1; - else if (strcmp(*argv,"-noout") == 0) - noout=1; - else if (strcmp(*argv,"-2") == 0) - g=2; - else if (strcmp(*argv,"-5") == 0) - g=5; - else if (strcmp(*argv,"-rand") == 0) - { - if (--argc < 1) goto bad; - inrand= *(++argv); - } - else if (((sscanf(*argv,"%d",&num) == 0) || (num <= 0))) - goto bad; - argv++; - argc--; - } - - if (badops) - { -bad: - BIO_printf(bio_err,"%s [options] [numbits]\n",prog); - BIO_printf(bio_err,"where options are\n"); - BIO_printf(bio_err," -inform arg input format - one of DER PEM\n"); - BIO_printf(bio_err," -outform arg output format - one of DER PEM\n"); - BIO_printf(bio_err," -in arg input file\n"); - BIO_printf(bio_err," -out arg output file\n"); -#ifndef OPENSSL_NO_DSA - BIO_printf(bio_err," -dsaparam read or generate DSA parameters, convert to DH\n"); -#endif - BIO_printf(bio_err," -check check the DH parameters\n"); - BIO_printf(bio_err," -text print a text form of the DH parameters\n"); - BIO_printf(bio_err," -C Output C code\n"); - BIO_printf(bio_err," -2 generate parameters using 2 as the generator value\n"); - BIO_printf(bio_err," -5 generate parameters using 5 as the generator value\n"); - BIO_printf(bio_err," numbits number of bits in to generate (default 512)\n"); -#ifndef OPENSSL_NO_ENGINE - BIO_printf(bio_err," -engine e use engine e, possibly a hardware device.\n"); -#endif - BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR); - 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," -noout no output\n"); - goto end; - } - - ERR_load_crypto_strings(); - -#ifndef OPENSSL_NO_ENGINE - setup_engine(bio_err, engine, 0); -#endif - - if (g && !num) - num = DEFBITS; - -#ifndef OPENSSL_NO_DSA - if (dsaparam) - { - if (g) - { - BIO_printf(bio_err, "generator may not be chosen for DSA parameters\n"); - goto end; - } - } - else -#endif - { - /* DH parameters */ - if (num && !g) - g = 2; - } - - if(num) { - - BN_GENCB cb; - BN_GENCB_set(&cb, dh_cb, bio_err); - if (!app_RAND_load_file(NULL, bio_err, 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)); +#include +#ifdef OPENSSL_NO_DH +NON_EMPTY_TRANSLATION_UNIT +#else + +# include +# include +# include +# include +# include "apps.h" +# include "progs.h" +# include +# include +# include +# include +# include +# include + +# ifndef OPENSSL_NO_DSA +# include +# endif +# define DEFBITS 2048 + +static int dh_cb(int p, int n, BN_GENCB *cb); + +typedef enum OPTION_choice { + OPT_ERR = -1, OPT_EOF = 0, OPT_HELP, + OPT_INFORM, OPT_OUTFORM, OPT_IN, OPT_OUT, + OPT_ENGINE, OPT_CHECK, OPT_TEXT, OPT_NOOUT, + OPT_DSAPARAM, OPT_C, OPT_2, OPT_5, + OPT_R_ENUM +} OPTION_CHOICE; + +const OPTIONS dhparam_options[] = { + {OPT_HELP_STR, 1, '-', "Usage: %s [flags] [numbits]\n"}, + {OPT_HELP_STR, 1, '-', "Valid options are:\n"}, + {"help", OPT_HELP, '-', "Display this summary"}, + {"in", OPT_IN, '<', "Input file"}, + {"inform", OPT_INFORM, 'F', "Input format, DER or PEM"}, + {"outform", OPT_OUTFORM, 'F', "Output format, DER or PEM"}, + {"out", OPT_OUT, '>', "Output file"}, + {"check", OPT_CHECK, '-', "Check the DH parameters"}, + {"text", OPT_TEXT, '-', "Print a text form of the DH parameters"}, + {"noout", OPT_NOOUT, '-', "Don't output any DH parameters"}, + OPT_R_OPTIONS, + {"C", OPT_C, '-', "Print C code"}, + {"2", OPT_2, '-', "Generate parameters using 2 as the generator value"}, + {"5", OPT_5, '-', "Generate parameters using 5 as the generator value"}, +# ifndef OPENSSL_NO_DSA + {"dsaparam", OPT_DSAPARAM, '-', + "Read or generate DSA parameters, convert to DH"}, +# endif +# ifndef OPENSSL_NO_ENGINE + {"engine", OPT_ENGINE, 's', "Use engine e, possibly a hardware device"}, +# endif + {NULL} +}; + +int dhparam_main(int argc, char **argv) +{ + BIO *in = NULL, *out = NULL; + DH *dh = NULL; + char *infile = NULL, *outfile = NULL, *prog; + ENGINE *e = NULL; #ifndef OPENSSL_NO_DSA - if (dsaparam) - { - DSA *dsa = DSA_new(); - - BIO_printf(bio_err,"Generating DSA parameters, %d bit long prime\n",num); - if(!dsa || !DSA_generate_parameters_ex(dsa, num, - NULL, 0, NULL, NULL, &cb)) - { - if(dsa) DSA_free(dsa); - ERR_print_errors(bio_err); - goto end; - } - - dh = DSA_dup_DH(dsa); - DSA_free(dsa); - if (dh == NULL) - { - ERR_print_errors(bio_err); - goto end; - } - } - else + int dsaparam = 0; #endif - { - dh = DH_new(); - BIO_printf(bio_err,"Generating DH parameters, %d bit long safe prime, generator %d\n",num,g); - BIO_printf(bio_err,"This is going to take a long time\n"); - if(!dh || !DH_generate_parameters_ex(dh, num, g, &cb)) - { - if(dh) DH_free(dh); - ERR_print_errors(bio_err); - goto end; - } - } - - app_RAND_write_file(NULL, bio_err); - } else { - - in=BIO_new(BIO_s_file()); - if (in == NULL) - { - ERR_print_errors(bio_err); - goto end; - } - if (infile == NULL) - BIO_set_fp(in,stdin,BIO_NOCLOSE); - else - { - if (BIO_read_filename(in,infile) <= 0) - { - perror(infile); - goto end; - } - } - - if (informat != FORMAT_ASN1 && informat != FORMAT_PEM) - { - BIO_printf(bio_err,"bad input format specified\n"); - goto end; - } - + int i, text = 0, C = 0, ret = 1, num = 0, g = 0; + int informat = FORMAT_PEM, outformat = FORMAT_PEM, check = 0, noout = 0; + OPTION_CHOICE o; + + prog = opt_init(argc, argv, dhparam_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: + opt_help(dhparam_options); + ret = 0; + goto end; + case OPT_INFORM: + if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &informat)) + goto opthelp; + break; + case OPT_OUTFORM: + if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &outformat)) + goto opthelp; + break; + case OPT_IN: + infile = opt_arg(); + break; + case OPT_OUT: + outfile = opt_arg(); + break; + case OPT_ENGINE: + e = setup_engine(opt_arg(), 0); + break; + case OPT_CHECK: + check = 1; + break; + case OPT_TEXT: + text = 1; + break; + case OPT_DSAPARAM: #ifndef OPENSSL_NO_DSA - if (dsaparam) - { - DSA *dsa; - - if (informat == FORMAT_ASN1) - dsa=d2i_DSAparams_bio(in,NULL); - else /* informat == FORMAT_PEM */ - dsa=PEM_read_bio_DSAparams(in,NULL,NULL,NULL); - - if (dsa == NULL) - { - BIO_printf(bio_err,"unable to load DSA parameters\n"); - ERR_print_errors(bio_err); - goto end; - } - - dh = DSA_dup_DH(dsa); - DSA_free(dsa); - if (dh == NULL) - { - ERR_print_errors(bio_err); - goto end; - } - } - else -#endif - { - if (informat == FORMAT_ASN1) - dh=d2i_DHparams_bio(in,NULL); - else /* informat == FORMAT_PEM */ - dh=PEM_read_bio_DHparams(in,NULL,NULL,NULL); - - if (dh == NULL) - { - BIO_printf(bio_err,"unable to load DH parameters\n"); - ERR_print_errors(bio_err); - goto end; - } - } - - /* dh != NULL */ - } - - out=BIO_new(BIO_s_file()); - if (out == NULL) - { - ERR_print_errors(bio_err); - goto end; - } - if (outfile == NULL) - { - BIO_set_fp(out,stdout,BIO_NOCLOSE); -#ifdef OPENSSL_SYS_VMS - { - BIO *tmpbio = BIO_new(BIO_f_linebuffer()); - out = BIO_push(tmpbio, out); - } + dsaparam = 1; #endif - } - else - { - if (BIO_write_filename(out,outfile) <= 0) - { - perror(outfile); - goto end; - } - } - - - if (text) - { - DHparams_print(out,dh); - } - - if (check) - { - if (!DH_check(dh,&i)) - { - ERR_print_errors(bio_err); - goto end; - } - if (i & DH_CHECK_P_NOT_PRIME) - printf("p value is not prime\n"); - if (i & DH_CHECK_P_NOT_SAFE_PRIME) - printf("p value is not a safe prime\n"); - if (i & DH_UNABLE_TO_CHECK_GENERATOR) - printf("unable to check the generator value\n"); - if (i & DH_NOT_SUITABLE_GENERATOR) - printf("the g value is not a generator\n"); - if (i == 0) - printf("DH parameters appear to be ok.\n"); - } - if (C) - { - unsigned char *data; - int len,l,bits; - - len=BN_num_bytes(dh->p); - bits=BN_num_bits(dh->p); - data=(unsigned char *)OPENSSL_malloc(len); - if (data == NULL) - { - perror("OPENSSL_malloc"); - goto end; - } - printf("#ifndef HEADER_DH_H\n" - "#include \n" - "#endif\n"); - printf("DH *get_dh%d()\n\t{\n",bits); - - l=BN_bn2bin(dh->p,data); - printf("\tstatic unsigned char dh%d_p[]={",bits); - for (i=0; ig,data); - printf("\tstatic unsigned char dh%d_g[]={",bits); - for (i=0; ip=BN_bin2bn(dh%d_p,sizeof(dh%d_p),NULL);\n", - bits,bits); - printf("\tdh->g=BN_bin2bn(dh%d_g,sizeof(dh%d_g),NULL);\n", - bits,bits); - printf("\tif ((dh->p == NULL) || (dh->g == NULL))\n"); - printf("\t\t{ DH_free(dh); return(NULL); }\n"); - if (dh->length) - printf("\tdh->length = %ld;\n", dh->length); - printf("\treturn(dh);\n\t}\n"); - OPENSSL_free(data); - } - - - if (!noout) - { - if (outformat == FORMAT_ASN1) - i=i2d_DHparams_bio(out,dh); - else if (outformat == FORMAT_PEM) - { - if (dh->q) - i=PEM_write_bio_DHxparams(out,dh); - else - i=PEM_write_bio_DHparams(out,dh); - } - else { - BIO_printf(bio_err,"bad output format specified for outfile\n"); - goto end; - } - if (!i) - { - BIO_printf(bio_err,"unable to write DH parameters\n"); - ERR_print_errors(bio_err); - goto end; - } - } - ret=0; -end: - if (in != NULL) BIO_free(in); - if (out != NULL) BIO_free_all(out); - if (dh != NULL) DH_free(dh); - apps_shutdown(); - OPENSSL_EXIT(ret); - } - -/* dh_cb is identical to dsa_cb in apps/dsaparam.c */ -static int MS_CALLBACK dh_cb(int p, int n, BN_GENCB *cb) - { - char c='*'; - - if (p == 0) c='.'; - if (p == 1) c='+'; - if (p == 2) c='*'; - if (p == 3) c='\n'; - BIO_write(cb->arg,&c,1); - (void)BIO_flush(cb->arg); -#ifdef LINT - p=n; -#endif - return 1; - } - -#else /* !OPENSSL_NO_DH */ - -# if PEDANTIC -static void *dummy=&dummy; + break; + case OPT_C: + C = 1; + break; + case OPT_2: + g = 2; + break; + case OPT_5: + g = 5; + break; + case OPT_NOOUT: + noout = 1; + break; + case OPT_R_CASES: + if (!opt_rand(o)) + goto end; + break; + } + } + argc = opt_num_rest(); + argv = opt_rest(); + + if (argv[0] != NULL && (!opt_int(argv[0], &num) || num <= 0)) + goto end; + + if (g && !num) + num = DEFBITS; + +# ifndef OPENSSL_NO_DSA + if (dsaparam && g) { + BIO_printf(bio_err, + "generator may not be chosen for DSA parameters\n"); + goto end; + } # endif + out = bio_open_default(outfile, 'w', outformat); + if (out == NULL) + goto end; + + /* DH parameters */ + if (num && !g) + g = 2; + + if (num) { + + BN_GENCB *cb; + cb = BN_GENCB_new(); + if (cb == NULL) { + ERR_print_errors(bio_err); + goto end; + } + + BN_GENCB_set(cb, dh_cb, bio_err); + +# ifndef OPENSSL_NO_DSA + if (dsaparam) { + DSA *dsa = DSA_new(); + + BIO_printf(bio_err, + "Generating DSA parameters, %d bit long prime\n", num); + if (dsa == NULL + || !DSA_generate_parameters_ex(dsa, num, NULL, 0, NULL, NULL, + cb)) { + DSA_free(dsa); + BN_GENCB_free(cb); + ERR_print_errors(bio_err); + goto end; + } + + dh = DSA_dup_DH(dsa); + DSA_free(dsa); + if (dh == NULL) { + BN_GENCB_free(cb); + ERR_print_errors(bio_err); + goto end; + } + } else +# endif + { + dh = DH_new(); + BIO_printf(bio_err, + "Generating DH parameters, %d bit long safe prime, generator %d\n", + num, g); + BIO_printf(bio_err, "This is going to take a long time\n"); + if (dh == NULL || !DH_generate_parameters_ex(dh, num, g, cb)) { + BN_GENCB_free(cb); + ERR_print_errors(bio_err); + goto end; + } + } + + BN_GENCB_free(cb); + } else { + + in = bio_open_default(infile, 'r', informat); + if (in == NULL) + goto end; + +# ifndef OPENSSL_NO_DSA + if (dsaparam) { + DSA *dsa; + + if (informat == FORMAT_ASN1) + dsa = d2i_DSAparams_bio(in, NULL); + else /* informat == FORMAT_PEM */ + dsa = PEM_read_bio_DSAparams(in, NULL, NULL, NULL); + + if (dsa == NULL) { + BIO_printf(bio_err, "unable to load DSA parameters\n"); + ERR_print_errors(bio_err); + goto end; + } + + dh = DSA_dup_DH(dsa); + DSA_free(dsa); + if (dh == NULL) { + ERR_print_errors(bio_err); + goto end; + } + } else +# endif + { + if (informat == FORMAT_ASN1) { + /* + * We have no PEM header to determine what type of DH params it + * is. We'll just try both. + */ + dh = d2i_DHparams_bio(in, NULL); + /* BIO_reset() returns 0 for success for file BIOs only!!! */ + if (dh == NULL && BIO_reset(in) == 0) + dh = d2i_DHxparams_bio(in, NULL); + } else { + /* informat == FORMAT_PEM */ + dh = PEM_read_bio_DHparams(in, NULL, NULL, NULL); + } + + if (dh == NULL) { + BIO_printf(bio_err, "unable to load DH parameters\n"); + ERR_print_errors(bio_err); + goto end; + } + } + + /* dh != NULL */ + } + + if (text) { + DHparams_print(out, dh); + } + + if (check) { + if (!DH_check(dh, &i)) { + ERR_print_errors(bio_err); + goto end; + } + if (i & DH_CHECK_P_NOT_PRIME) + BIO_printf(bio_err, "WARNING: p value is not prime\n"); + if (i & DH_CHECK_P_NOT_SAFE_PRIME) + BIO_printf(bio_err, "WARNING: p value is not a safe prime\n"); + if (i & DH_CHECK_Q_NOT_PRIME) + BIO_printf(bio_err, "WARNING: q value is not a prime\n"); + if (i & DH_CHECK_INVALID_Q_VALUE) + BIO_printf(bio_err, "WARNING: q value is invalid\n"); + if (i & DH_CHECK_INVALID_J_VALUE) + BIO_printf(bio_err, "WARNING: j value is invalid\n"); + if (i & DH_UNABLE_TO_CHECK_GENERATOR) + BIO_printf(bio_err, + "WARNING: unable to check the generator value\n"); + if (i & DH_NOT_SUITABLE_GENERATOR) + BIO_printf(bio_err, "WARNING: the g value is not a generator\n"); + if (i == 0) + BIO_printf(bio_err, "DH parameters appear to be ok.\n"); + if (num != 0 && i != 0) { + /* + * We have generated parameters but DH_check() indicates they are + * invalid! This should never happen! + */ + BIO_printf(bio_err, "ERROR: Invalid parameters generated\n"); + goto end; + } + } + if (C) { + unsigned char *data; + int len, bits; + const BIGNUM *pbn, *gbn; + + len = DH_size(dh); + bits = DH_bits(dh); + DH_get0_pqg(dh, &pbn, NULL, &gbn); + data = app_malloc(len, "print a BN"); + + BIO_printf(out, "static DH *get_dh%d(void)\n{\n", bits); + print_bignum_var(out, pbn, "dhp", bits, data); + print_bignum_var(out, gbn, "dhg", bits, data); + BIO_printf(out, " DH *dh = DH_new();\n" + " BIGNUM *p, *g;\n" + "\n" + " if (dh == NULL)\n" + " return NULL;\n"); + BIO_printf(out, " p = BN_bin2bn(dhp_%d, sizeof(dhp_%d), NULL);\n", + bits, bits); + BIO_printf(out, " g = BN_bin2bn(dhg_%d, sizeof(dhg_%d), NULL);\n", + bits, bits); + BIO_printf(out, " if (p == NULL || g == NULL\n" + " || !DH_set0_pqg(dh, p, NULL, g)) {\n" + " DH_free(dh);\n" + " BN_free(p);\n" + " BN_free(g);\n" + " return NULL;\n" + " }\n"); + if (DH_get_length(dh) > 0) + BIO_printf(out, + " if (!DH_set_length(dh, %ld)) {\n" + " DH_free(dh);\n" + " return NULL;\n" + " }\n", DH_get_length(dh)); + BIO_printf(out, " return dh;\n}\n"); + OPENSSL_free(data); + } + + if (!noout) { + const BIGNUM *q; + DH_get0_pqg(dh, NULL, &q, NULL); + if (outformat == FORMAT_ASN1) { + if (q != NULL) + i = i2d_DHxparams_bio(out, dh); + else + i = i2d_DHparams_bio(out, dh); + } else if (q != NULL) { + i = PEM_write_bio_DHxparams(out, dh); + } else { + i = PEM_write_bio_DHparams(out, dh); + } + if (!i) { + BIO_printf(bio_err, "unable to write DH parameters\n"); + ERR_print_errors(bio_err); + goto end; + } + } + ret = 0; + end: + BIO_free(in); + BIO_free_all(out); + DH_free(dh); + release_engine(e); + return ret; +} + +static int dh_cb(int p, int n, BN_GENCB *cb) +{ + static const char symbols[] = ".+*\n"; + char c = (p >= 0 && (size_t)p < sizeof(symbols) - 1) ? symbols[p] : '?'; + + BIO_write(BN_GENCB_get_arg(cb), &c, 1); + (void)BIO_flush(BN_GENCB_get_arg(cb)); + return 1; +} #endif