X-Git-Url: https://git.openssl.org/?p=openssl.git;a=blobdiff_plain;f=apps%2Fdsaparam.c;h=70135a694cdade608dcb72e0baf10dc232a1037c;hp=c591b5db532f761e2e6cf2e0db24214ab677d9a4;hb=b1ceb439f234a998db84f27a3a245dab95d322ab;hpb=96487cddd408e247819c4f122bd86e53ae4bd6c0 diff --git a/apps/dsaparam.c b/apps/dsaparam.c index c591b5db53..70135a694c 100644 --- a/apps/dsaparam.c +++ b/apps/dsaparam.c @@ -1,68 +1,23 @@ -/* 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 Apache License 2.0 (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 */ -#include /* for OPENSSL_NO_DSA */ +#include +#ifdef OPENSSL_NO_DSA +NON_EMPTY_TRANSLATION_UNIT +#else -#ifndef OPENSSL_NO_DSA # include # include # include # include # include "apps.h" +# include "progs.h" # include # include # include @@ -70,27 +25,15 @@ # include # include -# ifdef GENCB_TEST - -static int stop_keygen_flag = 0; - -static void timebomb_sigalarm(int foo) -{ - stop_keygen_flag = 1; -} - -# endif - static int dsa_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_TEXT, OPT_C, - OPT_NOOUT, OPT_GENKEY, OPT_RAND, OPT_NON_FIPS_ALLOW, OPT_ENGINE, - OPT_TIMEBOMB + OPT_NOOUT, OPT_GENKEY, OPT_ENGINE, OPT_R_ENUM } OPTION_CHOICE; -OPTIONS dsaparam_options[] = { +const OPTIONS dsaparam_options[] = { {"help", OPT_HELP, '-', "Display this summary"}, {"inform", OPT_INFORM, 'F', "Input format - DER or PEM"}, {"in", OPT_IN, '<', "Input file"}, @@ -100,11 +43,7 @@ OPTIONS dsaparam_options[] = { {"C", OPT_C, '-', "Output C code"}, {"noout", OPT_NOOUT, '-', "No output"}, {"genkey", OPT_GENKEY, '-', "Generate a DSA key"}, - {"rand", OPT_RAND, 's', "Files to use for random number input"}, - {"non-fips-allow", OPT_NON_FIPS_ALLOW, '-'}, -# ifdef GENCB_TEST - {"timebomb", OPT_TIMEBOMB, 'p', "Interrupt keygen after 'pnum' seconds"}, -# endif + OPT_R_OPTIONS, # ifndef OPENSSL_NO_ENGINE {"engine", OPT_ENGINE, 's', "Use engine e, possibly a hardware device"}, # endif @@ -113,16 +52,14 @@ OPTIONS dsaparam_options[] = { int dsaparam_main(int argc, char **argv) { + ENGINE *e = NULL; DSA *dsa = NULL; BIO *in = NULL, *out = NULL; BN_GENCB *cb = NULL; - int numbits = -1, num = 0, genkey = 0, need_rand = 0, non_fips_allow = 0; + int numbits = -1, num = 0, genkey = 0; int informat = FORMAT_PEM, outformat = FORMAT_PEM, noout = 0, C = 0; int ret = 1, i, text = 0, private = 0; -# ifdef GENCB_TEST - int timebomb = 0; -# endif - char *infile = NULL, *outfile = NULL, *prog, *inrand = NULL; + char *infile = NULL, *outfile = NULL, *prog; OPTION_CHOICE o; prog = opt_init(argc, argv, dsaparam_options); @@ -152,13 +89,8 @@ int dsaparam_main(int argc, char **argv) outfile = opt_arg(); break; case OPT_ENGINE: - (void)setup_engine(opt_arg(), 0); + e = setup_engine(opt_arg(), 0); break; - case OPT_TIMEBOMB: -# ifdef GENCB_TEST - timebomb = atoi(opt_arg()); - break; -# endif case OPT_TEXT: text = 1; break; @@ -166,29 +98,25 @@ int dsaparam_main(int argc, char **argv) C = 1; break; case OPT_GENKEY: - genkey = need_rand = 1; + genkey = 1; break; - case OPT_RAND: - inrand = opt_arg(); - need_rand = 1; + case OPT_R_CASES: + if (!opt_rand(o)) + goto end; break; case OPT_NOOUT: noout = 1; break; - case OPT_NON_FIPS_ALLOW: - non_fips_allow = 1; - break; } } argc = opt_num_rest(); argv = opt_rest(); if (argc == 1) { - if (!opt_int(argv[0], &num)) + if (!opt_int(argv[0], &num) || num < 0) goto end; /* generate a key */ numbits = num; - need_rand = 1; } private = genkey ? 1 : 0; @@ -199,63 +127,37 @@ int dsaparam_main(int argc, char **argv) if (out == NULL) goto end; - if (need_rand) { - app_RAND_load_file(NULL, (inrand != NULL)); - if (inrand != NULL) - BIO_printf(bio_err, "%ld semi-random bytes loaded\n", - app_RAND_load_files(inrand)); - } - if (numbits > 0) { + if (numbits > OPENSSL_DSA_MAX_MODULUS_BITS) + BIO_printf(bio_err, + "Warning: It is not recommended to use more than %d bit for DSA keys.\n" + " Your key size is %d! Larger key size may behave not as expected.\n", + OPENSSL_DSA_MAX_MODULUS_BITS, numbits); + cb = BN_GENCB_new(); if (cb == NULL) { BIO_printf(bio_err, "Error allocating BN_GENCB object\n"); goto end; } BN_GENCB_set(cb, dsa_cb, bio_err); - assert(need_rand); dsa = DSA_new(); if (dsa == NULL) { BIO_printf(bio_err, "Error allocating DSA object\n"); goto end; } - if (non_fips_allow) - dsa->flags |= DSA_FLAG_NON_FIPS_ALLOW; BIO_printf(bio_err, "Generating DSA parameters, %d bit long prime\n", num); BIO_printf(bio_err, "This could take some time\n"); -# ifdef GENCB_TEST - if (timebomb > 0) { - struct sigaction act; - act.sa_handler = timebomb_sigalarm; - act.sa_flags = 0; - BIO_printf(bio_err, - "(though I'll stop it if not done within %d secs)\n", - timebomb); - if (sigaction(SIGALRM, &act, NULL) != 0) { - BIO_printf(bio_err, "Error, couldn't set SIGALRM handler\n"); - goto end; - } - alarm(timebomb); - } -# endif if (!DSA_generate_parameters_ex(dsa, num, NULL, 0, NULL, NULL, cb)) { -# ifdef GENCB_TEST - if (stop_keygen_flag) { - BIO_printf(bio_err, "DSA key generation time-stopped\n"); - /* This is an asked-for behaviour! */ - ret = 0; - goto end; - } -# endif ERR_print_errors(bio_err); BIO_printf(bio_err, "Error, DSA key generation failed\n"); goto end; } - } else if (informat == FORMAT_ASN1) + } else if (informat == FORMAT_ASN1) { dsa = d2i_DSAparams_bio(in, NULL); - else + } else { 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); @@ -267,31 +169,44 @@ int dsaparam_main(int argc, char **argv) } if (C) { - int len = BN_num_bytes(dsa->p); - int bits_p = BN_num_bits(dsa->p); - unsigned char *data = app_malloc(len + 20, "BN space"); + const BIGNUM *p = NULL, *q = NULL, *g = NULL; + unsigned char *data; + int len, bits_p; + + DSA_get0_pqg(dsa, &p, &q, &g); + len = BN_num_bytes(p); + bits_p = BN_num_bits(p); - BIO_printf(bio_out, "DSA *get_dsa%d()\n{\n", bits_p); - print_bignum_var(bio_out, dsa->p, "dsap", len, data); - print_bignum_var(bio_out, dsa->q, "dsaq", len, data); - print_bignum_var(bio_out, dsa->g, "dsag", len, data); + data = app_malloc(len + 20, "BN space"); + + BIO_printf(bio_out, "static DSA *get_dsa%d(void)\n{\n", bits_p); + print_bignum_var(bio_out, p, "dsap", bits_p, data); + print_bignum_var(bio_out, q, "dsaq", bits_p, data); + print_bignum_var(bio_out, g, "dsag", bits_p, data); BIO_printf(bio_out, " DSA *dsa = DSA_new();\n" + " BIGNUM *p, *q, *g;\n" "\n"); BIO_printf(bio_out, " if (dsa == NULL)\n" " return NULL;\n"); - BIO_printf(bio_out, " dsa->p = BN_bin2bn(dsap_%d, sizeof (dsap_%d), NULL);\n", - bits_p, bits_p); - BIO_printf(bio_out, " dsa->q = BN_bin2bn(dsaq_%d, sizeof (dsaq_%d), NULL);\n", - bits_p, bits_p); - BIO_printf(bio_out, " dsa->g = BN_bin2bn(dsag_%d, sizeof (dsag_%d), NULL);\n", - bits_p, bits_p); - BIO_printf(bio_out, " if (!dsa->p || !dsa->q || !dsa->g) {\n" - " DSA_free(dsa);\n" + BIO_printf(bio_out, " if (!DSA_set0_pqg(dsa, p = BN_bin2bn(dsap_%d, sizeof(dsap_%d), NULL),\n", + bits_p, bits_p); + BIO_printf(bio_out, " q = BN_bin2bn(dsaq_%d, sizeof(dsaq_%d), NULL),\n", + bits_p, bits_p); + BIO_printf(bio_out, " g = BN_bin2bn(dsag_%d, sizeof(dsag_%d), NULL))) {\n", + bits_p, bits_p); + BIO_printf(bio_out, " DSA_free(dsa);\n" + " BN_free(p);\n" + " BN_free(q);\n" + " BN_free(g);\n" " return NULL;\n" " }\n" - " return(dsa);\n}\n"); + " return dsa;\n}\n"); + OPENSSL_free(data); } + if (outformat == FORMAT_ASN1 && genkey) + noout = 1; + if (!noout) { if (outformat == FORMAT_ASN1) i = i2d_DSAparams_bio(out, dsa); @@ -306,11 +221,8 @@ int dsaparam_main(int argc, char **argv) if (genkey) { DSA *dsakey; - assert(need_rand); if ((dsakey = DSAparams_dup(dsa)) == NULL) goto end; - if (non_fips_allow) - dsakey->flags |= DSA_FLAG_NON_FIPS_ALLOW; if (!DSA_generate_key(dsakey)) { ERR_print_errors(bio_err); DSA_free(dsakey); @@ -324,41 +236,23 @@ int dsaparam_main(int argc, char **argv) NULL); DSA_free(dsakey); } - if (need_rand) - app_RAND_write_file(NULL); ret = 0; end: BN_GENCB_free(cb); BIO_free(in); BIO_free_all(out); DSA_free(dsa); - return (ret); + release_engine(e); + return ret; } static int dsa_cb(int p, int n, BN_GENCB *cb) { - char c = '*'; + static const char symbols[] = ".+*\n"; + char c = (p >= 0 && (size_t)p < sizeof(symbols) - 1) ? symbols[p] : '?'; - if (p == 0) - c = '.'; - if (p == 1) - c = '+'; - if (p == 2) - c = '*'; - if (p == 3) - c = '\n'; BIO_write(BN_GENCB_get_arg(cb), &c, 1); (void)BIO_flush(BN_GENCB_get_arg(cb)); -# ifdef GENCB_TEST - if (stop_keygen_flag) - return 0; -# endif return 1; } -#else /* !OPENSSL_NO_DSA */ - -# if PEDANTIC -static void *dummy = &dummy; -# endif - #endif