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Revision 63ef0db60f7b9fc0c2bcabdc7e2bd133784ddd60 authored by Adam Langley on 13 December 2014, 20:13:10 UTC, committed by Matt Caswell on 16 December 2014, 14:46:57 UTC
Don't set client_version to the ServerHello version.
The client_version needs to be preserved for the RSA key exchange.

This change also means that renegotiation will, like TLS, repeat the old
client_version rather than advertise only the final version. (Either way,
version change on renego is not allowed.) This is necessary in TLS to work
around an SChannel bug, but it's not strictly necessary in DTLS.

(From BoringSSL)

Reviewed-by: Emilia Käsper <emilia@openssl.org>
(cherry picked from commit ec1af3c4195c1dfecdd9dc7458850ab1b8b951e0)
1 parent f74f5c8
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  • apps
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  • prime.c
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prime.c
/* ====================================================================
 * Copyright (c) 2004 The OpenSSL Project.  All rights reserved.
 *
 * 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 above 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 acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
 *
 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
 *    endorse or promote products derived from this software without
 *    prior written permission. For written permission, please contact
 *    openssl-core@openssl.org.
 *
 * 5. Products derived from this software may not be called "OpenSSL"
 *    nor may "OpenSSL" appear in their names without prior written
 *    permission of the OpenSSL Project.
 *
 * 6. Redistributions of any form whatsoever must retain the following
 *    acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
 *
 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
 * EXPRESSED 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 OpenSSL PROJECT OR
 * ITS 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.
 *
 */

#include <string.h>

#include "apps.h"
#include <openssl/bn.h>


#undef PROG
#define PROG prime_main

int MAIN(int, char **);

int MAIN(int argc, char **argv)
    {
    int hex=0;
    int checks=20;
    int generate=0;
    int bits=0;
    int safe=0;
    BIGNUM *bn=NULL;
    BIO *bio_out;

    apps_startup();

    if (bio_err == NULL)
	if ((bio_err=BIO_new(BIO_s_file())) != NULL)
	    BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);

    --argc;
    ++argv;
    while (argc >= 1 && **argv == '-')
	{
	if(!strcmp(*argv,"-hex"))
	    hex=1;
	else if(!strcmp(*argv,"-generate"))
	    generate=1;
	else if(!strcmp(*argv,"-bits"))
	    if(--argc < 1)
		goto bad;
	    else
		bits=atoi(*++argv);
	else if(!strcmp(*argv,"-safe"))
	    safe=1;
	else if(!strcmp(*argv,"-checks"))
	    if(--argc < 1)
		goto bad;
	    else
		checks=atoi(*++argv);
	else
	    {
	    BIO_printf(bio_err,"Unknown option '%s'\n",*argv);
	    goto bad;
	    }
	--argc;
	++argv;
	}

    if (argv[0] == NULL && !generate)
	{
	BIO_printf(bio_err,"No prime specified\n");
	goto bad;
	}

    if ((bio_out=BIO_new(BIO_s_file())) != NULL)
	{
	BIO_set_fp(bio_out,stdout,BIO_NOCLOSE);
#ifdef OPENSSL_SYS_VMS
	    {
	    BIO *tmpbio = BIO_new(BIO_f_linebuffer());
	    bio_out = BIO_push(tmpbio, bio_out);
	    }
#endif
	}

    if(generate)
	{
	char *s;

	if(!bits)
	    {
	    BIO_printf(bio_err,"Specifiy the number of bits.\n");
	    return 1;
	    }
	bn=BN_new();
	BN_generate_prime_ex(bn,bits,safe,NULL,NULL,NULL);
	s=hex ? BN_bn2hex(bn) : BN_bn2dec(bn);
	BIO_printf(bio_out,"%s\n",s);
	OPENSSL_free(s);
	}
    else
	{
	if(hex)
	    BN_hex2bn(&bn,argv[0]);
	else
	    BN_dec2bn(&bn,argv[0]);

	BN_print(bio_out,bn);
	BIO_printf(bio_out," is %sprime\n",
		   BN_is_prime_ex(bn,checks,NULL,NULL) ? "" : "not ");
	}

    BN_free(bn);
    BIO_free_all(bio_out);

    return 0;

    bad:
    BIO_printf(bio_err,"options are\n");
    BIO_printf(bio_err,"%-14s hex\n","-hex");
    BIO_printf(bio_err,"%-14s number of checks\n","-checks <n>");
    return 1;
    }
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