Import of old SSLeay release: SSLeay 0.8.1b
diff --git a/apps/gendsa.c b/apps/gendsa.c
new file mode 100644
index 0000000..35f299a
--- /dev/null
+++ b/apps/gendsa.c
@@ -0,0 +1,220 @@
+/* apps/gendsa.c */
+/* Copyright (C) 1995-1997 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.]
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include "apps.h"
+#include "bio.h"
+#include "rand.h"
+#include "err.h"
+#include "bn.h"
+#include "dsa.h"
+#include "x509.h"
+#include "pem.h"
+
+#define DEFBITS 512
+#undef PROG
+#define PROG gendsa_main
+
+#ifndef NOPROTO
+static long dsa_load_rand(char *names);
+#else
+static long dsa_load_rand();
+#endif
+
+int MAIN(argc, argv)
+int argc;
+char **argv;
+ {
+ char buffer[200];
+ DSA *dsa=NULL;
+ int ret=1,num=DEFBITS;
+ char *outfile=NULL;
+ char *inrand=NULL,*randfile,*dsaparams=NULL;
+ BIO *out=NULL,*in=NULL;
+
+ apps_startup();
+
+ if (bio_err == NULL)
+ if ((bio_err=BIO_new(BIO_s_file())) != NULL)
+ BIO_set_fp(bio_err,stderr,BIO_NOCLOSE);
+
+ argv++;
+ argc--;
+ for (;;)
+ {
+ if (argc <= 0) break;
+ if (strcmp(*argv,"-out") == 0)
+ {
+ if (--argc < 1) goto bad;
+ outfile= *(++argv);
+ }
+ else if (strcmp(*argv,"-rand") == 0)
+ {
+ if (--argc < 1) goto bad;
+ inrand= *(++argv);
+ }
+ else if (strcmp(*argv,"-") == 0)
+ goto bad;
+ else if (dsaparams == NULL)
+ {
+ dsaparams= *argv;
+ }
+ else
+ goto bad;
+ argv++;
+ argc--;
+ }
+
+ if (dsaparams == NULL)
+ {
+bad:
+ BIO_printf(bio_err,"usage: gendsa [args] [numbits]\n");
+ BIO_printf(bio_err," -out file - output the key to 'file\n");
+ BIO_printf(bio_err," -rand file:file:...\n");
+ BIO_printf(bio_err," - load the file (or the files in the directory) into\n");
+ BIO_printf(bio_err," the random number generator\n");
+ goto end;
+ }
+
+ in=BIO_new(BIO_s_file());
+ if (!(BIO_read_filename(in,"r")))
+ {
+ perror(dsaparams);
+ goto end;
+ }
+
+ if ((dsa=PEM_read_bio_DSAparams(in,NULL,NULL)) == NULL)
+ {
+ BIO_printf(bio_err,"unable to load DSA parameter file\n");
+ goto end;
+ }
+ BIO_free(in);
+
+ out=BIO_new(BIO_s_file());
+ if (out == NULL) goto end;
+
+ if (outfile == NULL)
+ BIO_set_fp(out,stdout,BIO_NOCLOSE);
+ else
+ {
+ if (BIO_write_filename(out,outfile) <= 0)
+ {
+ perror(outfile);
+ goto end;
+ }
+ }
+
+ randfile=RAND_file_name(buffer,200);
+ if ((randfile == NULL)|| !RAND_load_file(randfile,1024L*1024L))
+ BIO_printf(bio_err,"unable to load 'random state'\n");
+
+ if (inrand == NULL)
+ BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
+ else
+ {
+ BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
+ dsa_load_rand(inrand));
+ }
+
+ 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_key(dsa)) goto end;
+
+ if (randfile == NULL)
+ BIO_printf(bio_err,"unable to write 'random state'\n");
+ else
+ RAND_write_file(randfile);
+
+ if (!PEM_write_bio_DSAPrivateKey(out,dsa,EVP_des_ede3_cbc(),NULL,0,NULL))
+ goto end;
+ ret=0;
+end:
+ if (ret != 0)
+ ERR_print_errors(bio_err);
+ if (out != NULL) BIO_free(out);
+ if (dsa != NULL) DSA_free(dsa);
+ EXIT(ret);
+ }
+
+static long dsa_load_rand(name)
+char *name;
+ {
+ char *p,*n;
+ int last;
+ long tot=0;
+
+ for (;;)
+ {
+ last=0;
+ for (p=name; ((*p != '\0') && (*p != LIST_SEPARATOR_CHAR)); p++);
+ if (*p == '\0') last=1;
+ *p='\0';
+ n=name;
+ name=p+1;
+ if (*n == '\0') break;
+
+ tot+=RAND_load_file(n,1);
+ if (last) break;
+ }
+ return(tot);
+ }
+
+
