X-Git-Url: https://git.openssl.org/?p=openssl.git;a=blobdiff_plain;f=apps%2Fdhparam.c;h=13f76754d27cbe027558b9170f29032fd65f7529;hp=6e51c0b82e78fb99a9d03bea74c2fa1a81032be9;hb=46d085096c6ead624c61e4b8b301421301511e64;hpb=333b070ec06d7a67538ee9d5312656a19e802dc1 diff --git a/apps/dhparam.c b/apps/dhparam.c index 6e51c0b82e..13f76754d2 100644 --- a/apps/dhparam.c +++ b/apps/dhparam.c @@ -1,120 +1,23 @@ -/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) - * 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.] - */ -/* ==================================================================== - * 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). +/* + * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved. * + * 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 */ -#include /* for OPENSSL_NO_DH */ -#ifndef OPENSSL_NO_DH +#include +#ifdef OPENSSL_NO_DH +NON_EMPTY_TRANSLATION_UNIT +#else + # include # include # include # include # include "apps.h" +# include "progs.h" # include # include # include @@ -134,10 +37,11 @@ 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_RAND, OPT_DSAPARAM, OPT_C, OPT_2, OPT_5 + OPT_DSAPARAM, OPT_C, OPT_2, OPT_5, + OPT_R_ENUM } OPTION_CHOICE; -OPTIONS dhparam_options[] = { +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"}, @@ -147,18 +51,17 @@ OPTIONS dhparam_options[] = { {"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, '-'}, - {"rand", OPT_RAND, 's', - "Load the file(s) into the random number generator"}, + {"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_ENGINE - {"engine", OPT_ENGINE, 's', "Use engine e, possibly a hardware device"}, -# endif # 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} }; @@ -167,8 +70,12 @@ int dhparam_main(int argc, char **argv) { BIO *in = NULL, *out = NULL; DH *dh = NULL; - char *infile = NULL, *outfile = NULL, *prog, *inrand = NULL; - int dsaparam = 0, i, text = 0, C = 0, ret = 1, num = 0, g = 0; + char *infile = NULL, *outfile = NULL, *prog; + ENGINE *e = NULL; +#ifndef OPENSSL_NO_DSA + int dsaparam = 0; +#endif + 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; @@ -199,7 +106,7 @@ int dhparam_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_CHECK: check = 1; @@ -208,7 +115,9 @@ int dhparam_main(int argc, char **argv) text = 1; break; case OPT_DSAPARAM: +#ifndef OPENSSL_NO_DSA dsaparam = 1; +#endif break; case OPT_C: C = 1; @@ -222,15 +131,16 @@ int dhparam_main(int argc, char **argv) case OPT_NOOUT: noout = 1; break; - case OPT_RAND: - inrand = opt_arg(); + case OPT_R_CASES: + if (!opt_rand(o)) + goto end; break; } } argc = opt_num_rest(); argv = opt_rest(); - if (argv[0] && (!opt_int(argv[0], &num) || num <= 0)) + if (argv[0] != NULL && (!opt_int(argv[0], &num) || num <= 0)) goto end; if (g && !num) @@ -243,6 +153,11 @@ int dhparam_main(int argc, char **argv) goto end; } # endif + + out = bio_open_default(outfile, 'w', outformat); + if (out == NULL) + goto end; + /* DH parameters */ if (num && !g) g = 2; @@ -251,19 +166,12 @@ int dhparam_main(int argc, char **argv) BN_GENCB *cb; cb = BN_GENCB_new(); - if (!cb) { + if (cb == NULL) { ERR_print_errors(bio_err); goto end; } BN_GENCB_set(cb, dh_cb, bio_err); - 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)); # ifndef OPENSSL_NO_DSA if (dsaparam) { @@ -271,7 +179,7 @@ int dhparam_main(int argc, char **argv) BIO_printf(bio_err, "Generating DSA parameters, %d bit long prime\n", num); - if (!dsa + if (dsa == NULL || !DSA_generate_parameters_ex(dsa, num, NULL, 0, NULL, NULL, cb)) { DSA_free(dsa); @@ -295,7 +203,7 @@ int dhparam_main(int argc, char **argv) "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 == NULL || !DH_generate_parameters_ex(dh, num, g, cb)) { BN_GENCB_free(cb); ERR_print_errors(bio_err); goto end; @@ -303,10 +211,9 @@ int dhparam_main(int argc, char **argv) } BN_GENCB_free(cb); - app_RAND_write_file(NULL); } else { - in = bio_open_default(infile, RB(informat)); + in = bio_open_default(infile, 'r', informat); if (in == NULL) goto end; @@ -334,10 +241,19 @@ int dhparam_main(int argc, char **argv) } else # endif { - if (informat == FORMAT_ASN1) + 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); - else /* informat == FORMAT_PEM */ + /* 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"); @@ -349,10 +265,6 @@ int dhparam_main(int argc, char **argv) /* dh != NULL */ } - out = bio_open_default(outfile, "w"); - if (out == NULL) - goto end; - if (text) { DHparams_print(out, dh); } @@ -363,60 +275,83 @@ int dhparam_main(int argc, char **argv) goto end; } if (i & DH_CHECK_P_NOT_PRIME) - printf("p value is not prime\n"); + BIO_printf(bio_err, "WARNING: p value is not prime\n"); if (i & DH_CHECK_P_NOT_SAFE_PRIME) - printf("p value is not a safe prime\n"); + 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) - printf("unable to check the generator value\n"); + BIO_printf(bio_err, + "WARNING: unable to check the generator value\n"); if (i & DH_NOT_SUITABLE_GENERATOR) - printf("the g value is not a generator\n"); + BIO_printf(bio_err, "WARNING: the g value is not a generator\n"); if (i == 0) - printf("DH parameters appear to be ok.\n"); + 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; - - 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; - } - BIO_printf(out, "#ifndef HEADER_DH_H\n" - "# include \n" - "#endif\n" - "\n"); - BIO_printf(out, "DH *get_dh%d()\n{\n", bits); - print_bignum_var(out, dh->p, "dhp", bits, data); - print_bignum_var(out, dh->g, "dhg", bits, data); - BIO_printf(out, " DH *dh = DN_new();\n" + 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, " dh->p = BN_bin2bn(dhp_%d, sizeof (dhp_%d), NULL);\n", - bits, bits); - BIO_printf(out, " dh->g = BN_bin2bn(dhg_%d, sizeof (dhg_%d), NULL);\n", - bits, bits); - BIO_printf(out, " if (!dh->p || !dh->g) {\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->length) + if (DH_get_length(dh) > 0) BIO_printf(out, - " dh->length = %ld;\n", dh->length); + " 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) { - if (outformat == FORMAT_ASN1) - i = i2d_DHparams_bio(out, dh); - else if (dh->q) + 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 + } 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); @@ -428,30 +363,17 @@ int dhparam_main(int argc, char **argv) BIO_free(in); BIO_free_all(out); DH_free(dh); - return (ret); + release_engine(e); + return ret; } static int 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'; + 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; } - -#else /* !OPENSSL_NO_DH */ - -# if PEDANTIC -static void *dummy = &dummy; -# endif - #endif