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📄 CA.pl.in(7.4 KB)
📄 app_rand.c(2.18 KB)
📄 apps.c(72.85 KB)
📄 apps.h(24.69 KB)
📄 asn1pars.c(10.31 KB)
📄 bf_prefix.c(4.77 KB)
📄 build.info(2.32 KB)
📄 ca-cert.srl(3 B)
📄 ca-key.pem(916 B)
📄 ca-req.pem(635 B)
📄 ca.c(83.78 KB)
📄 cert.pem(623 B)
📄 ciphers.c(7.19 KB)
📄 client.pem(3.21 KB)
📄 cms.c(44.05 KB)
📄 crl.c(10.79 KB)
📄 crl2p7.c(6.18 KB)
📄 ct_log_list.cnf(412 B)
📄 dgst.c(18.17 KB)
📄 dh1024.pem(446 B)
📄 dh2048.pem(662 B)
📄 dh4096.pem(1007 B)
📄 dhparam.c(11.15 KB)
📄 dsa-ca.pem(2.66 KB)
📄 dsa-pca.pem(2.67 KB)
📄 dsa.c(7.53 KB)
📄 dsa1024.pem(455 B)
📄 dsa512.pem(280 B)
📄 dsap.pem(276 B)
📄 dsaparam.c(7.8 KB)
📄 ec.c(8.13 KB)
📄 ecparam.c(14.65 KB)
📄 enc.c(20.74 KB)
📄 engine.c(15.56 KB)
📄 errstr.c(1.83 KB)
📄 gendsa.c(3.92 KB)
📄 genpkey.c(8.64 KB)
📄 genrsa.c(5.36 KB)
📄 nseq.c(3 KB)
📄 ocsp.c(49.51 KB)
📄 openssl.c(21.23 KB)
📄 openssl.cnf(10.67 KB)
📄 opt.c(23.61 KB)
📄 passwd.c(26.43 KB)
📄 pca-cert.srl(3 B)
📄 pca-key.pem(916 B)
📄 pca-req.pem(635 B)
📄 pkcs12.c(30.81 KB)
📄 pkcs7.c(5.38 KB)
📄 pkcs8.c(11.26 KB)
📄 pkey.c(7.24 KB)
📄 pkeyparam.c(3.66 KB)
📄 pkeyutl.c(15.58 KB)
📄 prime.c(3.56 KB)
📄 privkey.pem(916 B)
📄 progs.h(16.05 KB)
📄 progs.pl(5.43 KB)
📄 rand.c(3.35 KB)
📄 rehash.c(15.3 KB)
📄 req.c(51.46 KB)
📄 req.pem(627 B)
📄 rsa.c(9.3 KB)
📄 rsa8192.pem(6.21 KB)
📄 rsautl.c(7.81 KB)
📄 s1024key.pem(891 B)
📄 s1024req.pem(643 B)
📄 s512-key.pem(497 B)
📄 s512-req.pem(460 B)
📄 s_apps.h(3.3 KB)
📄 s_cb.c(47.04 KB)
📄 s_client.c(115.39 KB)
📄 s_server.c(116.36 KB)
📄 s_socket.c(13.43 KB)
📄 s_time.c(11.92 KB)
📄 server.pem(2.79 KB)
📄 server.srl(3 B)
📄 server2.pem(3.21 KB)
📄 sess_id.c(5.4 KB)
📄 smime.c(20.95 KB)
📄 speed.c(120.17 KB)
📄 spkac.c(5.73 KB)
📄 srp.c(20.09 KB)
📄 storeutl.c(16.13 KB)
📄 testCA.pem(432 B)
📄 testdsa.h(11.77 KB)
📄 testrsa.h(121.12 KB)
📄 timeouts.h(560 B)
📄 ts.c(30.19 KB)
📄 tsget.in(6.45 KB)
📄 verify.c(10.52 KB)
📄 version.c(5.07 KB)
📄 x509.c(39.25 KB)

Editing: dsaparam.c

/*
 * Copyright 1995-2020 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 <openssl/opensslconf.h>
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <string.h>
#include "apps.h"
#include "progs.h"
#include <openssl/bio.h>
#include <openssl/err.h>
#include <openssl/bn.h>
#include <openssl/dsa.h>
#include <openssl/x509.h>
#include <openssl/pem.h>

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_ENGINE, OPT_R_ENUM
} OPTION_CHOICE;

const OPTIONS dsaparam_options[] = {
    {"help", OPT_HELP, '-', "Display this summary"},
    {"inform", OPT_INFORM, 'F', "Input format - DER or PEM"},
    {"in", OPT_IN, '<', "Input file"},
    {"outform", OPT_OUTFORM, 'F', "Output format - DER or PEM"},
    {"out", OPT_OUT, '>', "Output file"},
    {"text", OPT_TEXT, '-', "Print as text"},
    {"C", OPT_C, '-', "Output C code"},
    {"noout", OPT_NOOUT, '-', "No output"},
    {"genkey", OPT_GENKEY, '-', "Generate a DSA key"},
    OPT_R_OPTIONS,
#ifndef OPENSSL_NO_ENGINE
    {"engine", OPT_ENGINE, 's', "Use engine e, possibly a hardware device"},
#endif
    {NULL}
};

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;
    int informat = FORMAT_PEM, outformat = FORMAT_PEM, noout = 0, C = 0;
    int ret = 1, i, text = 0, private = 0;
    char *infile = NULL, *outfile = NULL, *prog;
    OPTION_CHOICE o;

prog = opt_init(argc, argv, dsaparam_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(dsaparam_options);
            ret = 0;
            goto end;
        case OPT_INFORM:
            if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &informat))
                goto opthelp;
            break;
        case OPT_IN:
            infile = opt_arg();
            break;
        case OPT_OUTFORM:
            if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &outformat))
                goto opthelp;
            break;
        case OPT_OUT:
            outfile = opt_arg();
            break;
        case OPT_ENGINE:
            e = setup_engine(opt_arg(), 0);
            break;
        case OPT_TEXT:
            text = 1;
            break;
        case OPT_C:
            C = 1;
            break;
        case OPT_GENKEY:
            genkey = 1;
            break;
        case OPT_R_CASES:
            if (!opt_rand(o))
                goto end;
            break;
        case OPT_NOOUT:
            noout = 1;
            break;
        }
    }
    argc = opt_num_rest();
    argv = opt_rest();

if (argc == 1) {
        if (!opt_int(argv[0], &num) || num < 0)
            goto end;
        /* generate a key */
        numbits = num;
    }
    private = genkey ? 1 : 0;

in = bio_open_default(infile, 'r', informat);
    if (in == NULL)
        goto end;
    out = bio_open_owner(outfile, outformat, private);
    if (out == NULL)
        goto end;

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);
        dsa = DSA_new();
        if (dsa == NULL) {
            BIO_printf(bio_err, "Error allocating DSA object\n");
            goto end;
        }
        BIO_printf(bio_err, "Generating DSA parameters, %d bit long prime\n",
                   num);
        BIO_printf(bio_err, "This could take some time\n");
        if (!DSA_generate_parameters_ex(dsa, num, NULL, 0, NULL, NULL, cb)) {
            ERR_print_errors(bio_err);
            BIO_printf(bio_err, "Error, DSA key generation failed\n");
            goto end;
        }
    } else if (informat == FORMAT_ASN1) {
        dsa = d2i_DSAparams_bio(in, NULL);
    } 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);
        goto end;
    }

if (text) {
        DSAparams_print(out, dsa);
    }

if (C) {
        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);

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, "    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");
        OPENSSL_free(data);
    }

if (outformat == FORMAT_ASN1 && genkey)
        noout = 1;

if (!noout) {
        if (outformat == FORMAT_ASN1)
            i = i2d_DSAparams_bio(out, dsa);
        else
            i = PEM_write_bio_DSAparams(out, dsa);
        if (!i) {
            BIO_printf(bio_err, "unable to write DSA parameters\n");
            ERR_print_errors(bio_err);
            goto end;
        }
    }
    if (genkey) {
        DSA *dsakey;

if ((dsakey = DSAparams_dup(dsa)) == NULL)
            goto end;
        if (!DSA_generate_key(dsakey)) {
            ERR_print_errors(bio_err);
            DSA_free(dsakey);
            goto end;
        }
        assert(private);
        if (outformat == FORMAT_ASN1)
            i = i2d_DSAPrivateKey_bio(out, dsakey);
        else
            i = PEM_write_bio_DSAPrivateKey(out, dsakey, NULL, NULL, 0, NULL,
                                            NULL);
        DSA_free(dsakey);
    }
    ret = 0;
 end:
    BN_GENCB_free(cb);
    BIO_free(in);
    BIO_free_all(out);
    DSA_free(dsa);
    release_engine(e);
    return ret;
}

static int dsa_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;
}

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Editing: dsaparam.c

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