From aa4d426b4d3527d7e166df1a05058c9a4a0f6683 Mon Sep 17 00:00:00 2001
From: Wojtek Kosior <wk@koszkonutek-tmp.pl.eu.org>
Date: Fri, 30 Apr 2021 00:33:56 +0200
Subject: initial/final commit

---
 openssl-1.1.0h/apps/gendsa.c | 147 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 147 insertions(+)
 create mode 100644 openssl-1.1.0h/apps/gendsa.c

(limited to 'openssl-1.1.0h/apps/gendsa.c')

diff --git a/openssl-1.1.0h/apps/gendsa.c b/openssl-1.1.0h/apps/gendsa.c
new file mode 100644
index 0000000..bdef022
--- /dev/null
+++ b/openssl-1.1.0h/apps/gendsa.c
@@ -0,0 +1,147 @@
+/*
+ * Copyright 1995-2016 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>
+#ifdef OPENSSL_NO_DSA
+NON_EMPTY_TRANSLATION_UNIT
+#else
+
+# include <stdio.h>
+# include <string.h>
+# include <sys/types.h>
+# include <sys/stat.h>
+# include "apps.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>
+
+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)
+{
+    ENGINE *e = NULL;
+    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:
+            e = 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);
+    release_engine(e);
+    OPENSSL_free(passout);
+    return (ret);
+}
+#endif
-- 
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