/* crypto/dh/dhtest.c */

/* 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.]

 */

/*

 © Portions copyright (c) 2006 Nokia Corporation.  All rights reserved.

 */

/* Until the key-gen callbacks are modified to use newer prototypes, we allow

 * deprecated functions for openssl-internal code */

 #ifndef SYMBIAN

#ifdef OPENSSL_NO_DEPRECATED

#undef OPENSSL_NO_DEPRECATED

#endif

#endif

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

#ifndef SYMBIAN

#include "../e_os.h"

#else

#include "e_os.h"

#endif

#include <openssl/crypto.h>

#include <openssl/bio.h>

#include <openssl/bn.h>

#include <openssl/rand.h>

#include <openssl/err.h>

#ifdef SYMBIAN

#ifdef stdin

#undef stdin

#endif

#ifdef stdout

#undef stdout

#endif

#ifdef stderr

#undef stderr

#endif

#define stdin fp_stdin

#define stdout fp_stdout

#define stderr fp_stderr

extern FILE *fp_stdout;

extern FILE *fp_stderr;

#endif

#ifdef OPENSSL_NO_DH

int main(int argc, char *argv[])

{

    fprintf(stdout,"No DH support\n");

    return(0);

}

#else

#include <openssl/dh.h>

#ifdef OPENSSL_SYS_WIN16

#define MS_CALLBACK	_far _loadds

#else

#define MS_CALLBACK

#endif

static int MS_CALLBACK cb(int p, int n, BN_GENCB *arg);

static const char rnd_seed[] = "string to make the random number generator think it has entropy";

#ifndef SYMBIAN

int main(int argc, char *argv[])

#else

int dh_main(int argc, char *argv[])

#endif

	{

	BN_GENCB _cb;

	DH *a;

	DH *b=NULL;

	char buf[12];

	unsigned char *abuf=NULL,*bbuf=NULL;

	int i,alen,blen,aout,bout,ret=1;

	BIO *out;

	//CRYPTO_malloc_debug_init();

	//CRYPTO_dbg_set_options(V_CRYPTO_MDEBUG_ALL);

	//CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON);

#ifdef OPENSSL_SYS_WIN32

	CRYPTO_malloc_init();

#endif

	RAND_seed(rnd_seed, sizeof rnd_seed);

	if(errno==ENOMEM)

   	{

	  return 1;

	}

	out=BIO_new(BIO_s_file());

	if(	out == NULL&& errno==ENOMEM)

   	{

	  return 1;

	}

	if (out == NULL)

	return 1;

	//EXIT(1);

	BIO_set_fp(out,stdout,BIO_NOCLOSE);

	if(errno==ENOMEM)

   	{

	  return 1;

	}

	BN_GENCB_set(&_cb, &cb, out);

	if(errno==ENOMEM)

   	{

	  return 1;

	}

	if(((a = DH_new()) == NULL)) 

	{

		if(errno==ENOMEM)

   	   {

	    return 1;

	   }

		goto err;	

	}

	if( !DH_generate_parameters_ex(a, 64,

				DH_GENERATOR_5, &_cb))

 {

 	  if(a != NULL) DH_free(a);

 		if(errno==ENOMEM)

   	 {

	    return 1;

	   }

 }	

	if (!DH_check(a, &i)) 

	{

		if(errno==ENOMEM)

  	   {

	    return 1;

	   }

		goto err;	

	}

	if (i & DH_CHECK_P_NOT_PRIME)

		BIO_puts(out, "p value is not prime\n");

	if(errno==ENOMEM)

   	{

	  return 1;

	}

	if (i & DH_CHECK_P_NOT_SAFE_PRIME)

		BIO_puts(out, "p value is not a safe prime\n");

	if(errno==ENOMEM)

   	{

	  return 1;

	}

	if (i & DH_UNABLE_TO_CHECK_GENERATOR)

		BIO_puts(out, "unable to check the generator value\n");

	if(errno==ENOMEM)

   	{

	  return 1;

	}

	if (i & DH_NOT_SUITABLE_GENERATOR)

		BIO_puts(out, "the g value is not a generator\n");

    if(errno==ENOMEM)

   	{

	  return 1;

	}

	BIO_puts(out,"\np    =");

	if(errno==ENOMEM)

   	{

	  return 1;

	}

	BN_print(out,a->p);

	if(errno==ENOMEM)

   	{

	  return 1;

	}

	BIO_puts(out,"\ng    =");

	if(errno==ENOMEM)

   	{

	  return 1;

	}

	BN_print(out,a->g);

	if(errno==ENOMEM)

   	{

	  return 1;

	}

	BIO_puts(out,"\n");

	if(errno==ENOMEM)

   	{

	  return 1;

	}

	b=DH_new();

	if(	b == NULL&& errno==ENOMEM)

   	{

	  return 1;

	}

	if (b == NULL) goto err;

	b->p=BN_dup(a->p);

	if(errno==ENOMEM)

   	{

	  return 1;

	}

	b->g=BN_dup(a->g);

	if(errno==ENOMEM)

   	{

	  return 1;

	}

	if ((b->p == NULL) || (b->g == NULL))

	{

		if(errno==ENOMEM)

   	   {

	     return 1;

	   }

	   goto err;

	}

	/* Set a to run with normal modexp and b to use constant time */

	a->flags &= ~DH_FLAG_NO_EXP_CONSTTIME;

	b->flags |= DH_FLAG_NO_EXP_CONSTTIME;

	if (!DH_generate_key(a))

	{

	   if(errno==ENOMEM)

   	   {

	     return 1;

	   }

	   goto err;	

	}

	BIO_puts(out,"pri 1=");

	if(errno==ENOMEM)

   	{

	  return 1;

	}

	BN_print(out,a->priv_key);

	if(errno==ENOMEM)

   	{

	  return 1;

	}

	BIO_puts(out,"\npub 1=");

	if(errno==ENOMEM)

   	{

	  return 1;

	}

	BN_print(out,a->pub_key);

	if(errno==ENOMEM)

   	{

	  return 1;

	}

	BIO_puts(out,"\n");

    if(errno==ENOMEM)

   	{

	  return 1;

	}

	if (!DH_generate_key(b))

	{

	  if(errno==ENOMEM)

   	{

	  return 1;

	}

	  goto err;	

	}

	BIO_puts(out,"pri 2=");

	if(errno==ENOMEM)

   	{

	  return 1;

	}

	BN_print(out,b->priv_key);

	if(errno==ENOMEM)

   	{

	  return 1;

	}

	BIO_puts(out,"\npub 2=");

	if(errno==ENOMEM)

   	{

	  return 1;

	}

	BN_print(out,b->pub_key);

	if(errno==ENOMEM)

   	{

	  return 1;

	}

	BIO_puts(out,"\n");

	if(errno==ENOMEM)

   	{

	  return 1;

	}

	alen=DH_size(a);

	 if(errno==ENOMEM)

   	{

	  return 1;

	}

	abuf=(unsigned char *)OPENSSL_malloc(alen);

	 if(abuf== NULL&& errno==ENOMEM)

   	{

	  return 1;

	}

	aout=DH_compute_key(abuf,b->pub_key,a);

    if(errno==ENOMEM)

   	{

	  return 1;

	}

	BIO_puts(out,"key1 =");

	if(errno==ENOMEM)

   	{

	  return 1;

	}

	for (i=0; i<aout; i++)

		{

		sprintf(buf,"%02X",abuf[i]);

		BIO_puts(out,buf);

		if(errno==ENOMEM)

   	    {

	      return 1;

	     }

		}

	BIO_puts(out,"\n");

	if(errno==ENOMEM)

   	{

	  return 1;

	}

	blen=DH_size(b);

	if(errno==ENOMEM)

   	{

	  return 1;

	}

	bbuf=(unsigned char *)OPENSSL_malloc(blen);

	if(bbuf== NULL&& errno==ENOMEM)

   	{

	  return 1;

	}

	bout=DH_compute_key(bbuf,a->pub_key,b);

    if(errno==ENOMEM)

   	{

	  return 1;

	}

	BIO_puts(out,"key2 =");

	if(errno==ENOMEM)

   	{

	  return 1;

	}

	for (i=0; i<bout; i++)

		{

		sprintf(buf,"%02X",bbuf[i]);

		BIO_puts(out,buf);

		if(errno==ENOMEM)

   	    {

	      return 1;

	     }

		}

	BIO_puts(out,"\n");

	if(errno==ENOMEM)

   	{

	  return 1;

	}

	if ((aout < 4) || (bout != aout) || (memcmp(abuf,bbuf,aout) != 0))

		{

		fprintf(stderr,"Error in DH routines\n");

		ret=1;

		}

	else

		ret=0;

err:

	ERR_print_errors_fp(stderr);

    if(errno==ENOMEM)

   	{

	  return 1;

	}

	 ERR_remove_state(0);

     if(errno==ENOMEM)

   {

	  return 1;

	 }

    ERR_free_strings();

   if(errno==ENOMEM)

   {

	  return 1;

	 }    

	if (abuf != NULL) OPENSSL_free(abuf);

	if (bbuf != NULL) OPENSSL_free(bbuf);

	if(b != NULL) DH_free(b);

	if(a != NULL) DH_free(a);

	BIO_free(out);

#ifdef SYMBIAN	

	CRYPTO_cleanup_all_ex_data();

		if(errno==ENOMEM)

  {

	  return 1;

	}

#endif	

#ifdef OPENSSL_SYS_NETWARE

    if (ret) fprintf(stdout,"ERROR: %d\n", ret);

#endif

  fprintf(stdout,"Test case passed\n");

	//EXIT(ret);

	return(ret);

	}

static int MS_CALLBACK cb(int p, int n, BN_GENCB *arg)

	{

	char c='*';

	if (p == 0) c='.';

	if (p == 1) c='+';

	if (p == 2) c='*';

	if (p == 3) c='\n';

	BIO_write(arg->arg,&c,1);

	if(errno==ENOMEM)

   	{

	  return 1;

	}

	(void)BIO_flush(arg->arg);

	if(errno==ENOMEM)

   	{

	  return 1;

	}

#ifdef LINT

	p=n;

#endif

	return 1;

	}

#endif