Import of old SSLeay release: SSLeay 0.8.1b
diff --git a/apps/dsa.c b/apps/dsa.c
new file mode 100644
index 0000000..585116a
--- /dev/null
+++ b/apps/dsa.c
@@ -0,0 +1,257 @@
+/* apps/dsa.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 <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include "apps.h"
+#include "bio.h"
+#include "err.h"
+#include "dsa.h"
+#include "evp.h"
+#include "x509.h"
+#include "pem.h"
+
+#undef PROG
+#define PROG dsa_main
+
+/* -inform arg - input format - default PEM (one of DER, NET or PEM)
+ * -outform arg - output format - default PEM
+ * -in arg - input file - default stdin
+ * -out arg - output file - default stdout
+ * -des - encrypt output if PEM format with DES in cbc mode
+ * -des3 - encrypt output if PEM format
+ * -idea - encrypt output if PEM format
+ * -text - print a text version
+ * -modulus - print the DSA public key
+ */
+
+int MAIN(argc, argv)
+int argc;
+char **argv;
+ {
+ int ret=1;
+ DSA *dsa=NULL;
+ int i,badops=0;
+ EVP_CIPHER *enc=NULL;
+ BIO *in=NULL,*out=NULL;
+ int informat,outformat,text=0,noout=0;
+ char *infile,*outfile,*prog;
+ int modulus=0;
+
+ apps_startup();
+
+ if (bio_err == NULL)
+ if ((bio_err=BIO_new(BIO_s_file())) != NULL)
+ BIO_set_fp(bio_err,stderr,BIO_NOCLOSE);
+
+ infile=NULL;
+ outfile=NULL;
+ informat=FORMAT_PEM;
+ outformat=FORMAT_PEM;
+
+ prog=argv[0];
+ argc--;
+ argv++;
+ while (argc >= 1)
+ {
+ if (strcmp(*argv,"-inform") == 0)
+ {
+ if (--argc < 1) goto bad;
+ informat=str2fmt(*(++argv));
+ }
+ else if (strcmp(*argv,"-outform") == 0)
+ {
+ if (--argc < 1) goto bad;
+ outformat=str2fmt(*(++argv));
+ }
+ else if (strcmp(*argv,"-in") == 0)
+ {
+ if (--argc < 1) goto bad;
+ infile= *(++argv);
+ }
+ else if (strcmp(*argv,"-out") == 0)
+ {
+ if (--argc < 1) goto bad;
+ outfile= *(++argv);
+ }
+ else if (strcmp(*argv,"-noout") == 0)
+ noout=1;
+ else if (strcmp(*argv,"-text") == 0)
+ text=1;
+ else if (strcmp(*argv,"-modulus") == 0)
+ modulus=1;
+ else if ((enc=EVP_get_cipherbyname(&(argv[0][1]))) == NULL)
+ {
+ BIO_printf(bio_err,"unknown option %s\n",*argv);
+ badops=1;
+ break;
+ }
+ argc--;
+ argv++;
+ }
+
+ if (badops)
+ {
+bad:
+ BIO_printf(bio_err,"%s [options] <infile >outfile\n",prog);
+ BIO_printf(bio_err,"where options are\n");
+ BIO_printf(bio_err," -inform arg input format - one of DER NET PEM\n");
+ BIO_printf(bio_err," -outform arg output format - one of DER NET PEM\n");
+ BIO_printf(bio_err," -in arg inout file\n");
+ BIO_printf(bio_err," -out arg output file\n");
+ BIO_printf(bio_err," -des encrypt PEM output with cbc des\n");
+ BIO_printf(bio_err," -des3 encrypt PEM output with ede cbc des using 168 bit key\n");
+#ifndef NO_IDEA
+ BIO_printf(bio_err," -idea encrypt PEM output with cbc idea\n");
+#endif
+ BIO_printf(bio_err," -text print the key in text\n");
+ BIO_printf(bio_err," -noout don't print key out\n");
+ BIO_printf(bio_err," -modulus print the DSA public value\n");
+ goto end;
+ }
+
+ ERR_load_crypto_strings();
+
+ in=BIO_new(BIO_s_file());
+ out=BIO_new(BIO_s_file());
+ if ((in == NULL) || (out == NULL))
+ {
+ ERR_print_errors(bio_err);
+ goto end;
+ }
+
+ if (infile == NULL)
+ BIO_set_fp(in,stdin,BIO_NOCLOSE);
+ else
+ {
+ if (BIO_read_filename(in,infile) <= 0)
+ {
+ perror(infile);
+ goto end;
+ }
+ }
+
+ BIO_printf(bio_err,"read DSA private key\n");
+ if (informat == FORMAT_ASN1)
+ dsa=d2i_DSAPrivateKey_bio(in,NULL);
+ else if (informat == FORMAT_PEM)
+ dsa=PEM_read_bio_DSAPrivateKey(in,NULL,NULL);
+ else
+ {
+ BIO_printf(bio_err,"bad input format specified for key\n");
+ goto end;
+ }
+ if (dsa == NULL)
+ {
+ BIO_printf(bio_err,"unable to load Private Key\n");
+ ERR_print_errors(bio_err);
+ goto end;
+ }
+
+ if (outfile == NULL)
+ BIO_set_fp(out,stdout,BIO_NOCLOSE);
+ else
+ {
+ if (BIO_write_filename(out,outfile) <= 0)
+ {
+ perror(outfile);
+ goto end;
+ }
+ }
+
+ if (text)
+ if (!DSA_print(out,dsa,0))
+ {
+ perror(outfile);
+ ERR_print_errors(bio_err);
+ goto end;
+ }
+
+ if (modulus)
+ {
+ fprintf(stdout,"Public Key=");
+ BN_print(out,dsa->pub_key);
+ fprintf(stdout,"\n");
+ }
+
+ if (noout) goto end;
+ BIO_printf(bio_err,"writing DSA private key\n");
+ if (outformat == FORMAT_ASN1)
+ i=i2d_DSAPrivateKey_bio(out,dsa);
+ else if (outformat == FORMAT_PEM)
+ i=PEM_write_bio_DSAPrivateKey(out,dsa,enc,NULL,0,NULL);
+ else {
+ BIO_printf(bio_err,"bad output format specified for outfile\n");
+ goto end;
+ }
+ if (!i)
+ {
+ BIO_printf(bio_err,"unable to write private key\n");
+ ERR_print_errors(bio_err);
+ }
+ else
+ ret=0;
+end:
+ if (in != NULL) BIO_free(in);
+ if (out != NULL) BIO_free(out);
+ if (dsa != NULL) DSA_free(dsa);
+ EXIT(ret);
+ }
+
