Import upstream version 0~20120728.3df9e294

7 files changed, 1117 insertions, 0 deletions

diff --git a/Cryptlib/OpenSSL/crypto/dh/dh_asn1.c b/Cryptlib/OpenSSL/crypto/dh/dh_asn1.c
new file mode 100755
index 00000000..76740af2
--- /dev/null
+++ b/Cryptlib/OpenSSL/crypto/dh/dh_asn1.c
@@ -0,0 +1,87 @@
+/* dh_asn1.c */
+/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
+ * project 2000.
+ */
+/* ====================================================================
+ * Copyright (c) 2000 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
+ *    licensing@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.
+ * ====================================================================
+ *
+ * This product includes cryptographic software written by Eric Young
+ * (eay@cryptsoft.com).  This product includes software written by Tim
+ * Hudson (tjh@cryptsoft.com).
+ *
+ */
+
+#include <stdio.h>
+#include "cryptlib.h"
+#include <openssl/bn.h>
+#include <openssl/dh.h>
+#include <openssl/objects.h>
+#include <openssl/asn1t.h>
+
+/* Override the default free and new methods */
+static int dh_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it)
+{
+	if(operation == ASN1_OP_NEW_PRE) {
+		*pval = (ASN1_VALUE *)DH_new();
+		if(*pval) return 2;
+		return 0;
+	} else if(operation == ASN1_OP_FREE_PRE) {
+		DH_free((DH *)*pval);
+		*pval = NULL;
+		return 2;
+	}
+	return 1;
+}
+
+ASN1_SEQUENCE_cb(DHparams, dh_cb) = {
+	ASN1_SIMPLE(DH, p, BIGNUM),
+	ASN1_SIMPLE(DH, g, BIGNUM),
+	ASN1_OPT(DH, length, ZLONG),
+} ASN1_SEQUENCE_END_cb(DH, DHparams)
+
+IMPLEMENT_ASN1_ENCODE_FUNCTIONS_const_fname(DH, DHparams, DHparams)
diff --git a/Cryptlib/OpenSSL/crypto/dh/dh_check.c b/Cryptlib/OpenSSL/crypto/dh/dh_check.c
new file mode 100755
index 00000000..316cb922
--- /dev/null
+++ b/Cryptlib/OpenSSL/crypto/dh/dh_check.c
@@ -0,0 +1,146 @@
+/* crypto/dh/dh_check.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.]
+ */
+
+#include <stdio.h>
+#include "cryptlib.h"
+#include <openssl/bn.h>
+#include <openssl/dh.h>
+
+/* Check that p is a safe prime and
+ * if g is 2, 3 or 5, check that it is a suitable generator
+ * where
+ * for 2, p mod 24 == 11
+ * for 3, p mod 12 == 5
+ * for 5, p mod 10 == 3 or 7
+ * should hold.
+ */
+
+#ifndef OPENSSL_FIPS
+
+int DH_check(const DH *dh, int *ret)
+	{
+	int ok=0;
+	BN_CTX *ctx=NULL;
+	BN_ULONG l;
+	BIGNUM *q=NULL;
+
+	*ret=0;
+	ctx=BN_CTX_new();
+	if (ctx == NULL) goto err;
+	q=BN_new();
+	if (q == NULL) goto err;
+
+	if (BN_is_word(dh->g,DH_GENERATOR_2))
+		{
+		l=BN_mod_word(dh->p,24);
+		if (l != 11) *ret|=DH_NOT_SUITABLE_GENERATOR;
+		}
+#if 0
+	else if (BN_is_word(dh->g,DH_GENERATOR_3))
+		{
+		l=BN_mod_word(dh->p,12);
+		if (l != 5) *ret|=DH_NOT_SUITABLE_GENERATOR;
+		}
+#endif
+	else if (BN_is_word(dh->g,DH_GENERATOR_5))
+		{
+		l=BN_mod_word(dh->p,10);
+		if ((l != 3) && (l != 7))
+			*ret|=DH_NOT_SUITABLE_GENERATOR;
+		}
+	else
+		*ret|=DH_UNABLE_TO_CHECK_GENERATOR;
+
+	if (!BN_is_prime_ex(dh->p,BN_prime_checks,ctx,NULL))
+		*ret|=DH_CHECK_P_NOT_PRIME;
+	else
+		{
+		if (!BN_rshift1(q,dh->p)) goto err;
+		if (!BN_is_prime_ex(q,BN_prime_checks,ctx,NULL))
+			*ret|=DH_CHECK_P_NOT_SAFE_PRIME;
+		}
+	ok=1;
+err:
+	if (ctx != NULL) BN_CTX_free(ctx);
+	if (q != NULL) BN_free(q);
+	return(ok);
+	}
+
+int DH_check_pub_key(const DH *dh, const BIGNUM *pub_key, int *ret)
+	{
+	int ok=0;
+	BIGNUM *q=NULL;
+
+	*ret=0;
+	q=BN_new();
+	if (q == NULL) goto err;
+	BN_set_word(q,1);
+	if (BN_cmp(pub_key,q) <= 0)
+		*ret|=DH_CHECK_PUBKEY_TOO_SMALL;
+	BN_copy(q,dh->p);
+	BN_sub_word(q,1);
+	if (BN_cmp(pub_key,q) >= 0)
+		*ret|=DH_CHECK_PUBKEY_TOO_LARGE;
+
+	ok = 1;
+err:
+	if (q != NULL) BN_free(q);
+	return(ok);
+	}
+
+#endif
diff --git a/Cryptlib/OpenSSL/crypto/dh/dh_depr.c b/Cryptlib/OpenSSL/crypto/dh/dh_depr.c
new file mode 100755
index 00000000..acc05f25
--- /dev/null
+++ b/Cryptlib/OpenSSL/crypto/dh/dh_depr.c
@@ -0,0 +1,83 @@
+/* crypto/dh/dh_depr.c */
+/* ====================================================================
+ * Copyright (c) 1998-2002 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.
+ * ====================================================================
+ *
+ * This product includes cryptographic software written by Eric Young
+ * (eay@cryptsoft.com).  This product includes software written by Tim
+ * Hudson (tjh@cryptsoft.com).
+ *
+ */
+
+
+/* This file contains deprecated functions as wrappers to the new ones */
+
+#include <stdio.h>
+#include "cryptlib.h"
+#include <openssl/bn.h>
+#include <openssl/dh.h>
+
+static void *dummy=&dummy;
+
+#ifndef OPENSSL_NO_DEPRECATED
+DH *DH_generate_parameters(int prime_len, int generator,
+	     void (*callback)(int,int,void *), void *cb_arg)
+	{
+	BN_GENCB cb;
+	DH *ret=NULL;
+
+	if((ret=DH_new()) == NULL)
+		return NULL;
+
+	BN_GENCB_set_old(&cb, callback, cb_arg);
+
+	if(DH_generate_parameters_ex(ret, prime_len, generator, &cb))
+		return ret;
+	DH_free(ret);
+	return NULL;
+	}
+#endif
diff --git a/Cryptlib/OpenSSL/crypto/dh/dh_err.c b/Cryptlib/OpenSSL/crypto/dh/dh_err.c
new file mode 100755
index 00000000..13263c81
--- /dev/null
+++ b/Cryptlib/OpenSSL/crypto/dh/dh_err.c
@@ -0,0 +1,108 @@
+/* crypto/dh/dh_err.c */
+/* ====================================================================
+ * Copyright (c) 1999-2007 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.
+ * ====================================================================
+ *
+ * This product includes cryptographic software written by Eric Young
+ * (eay@cryptsoft.com).  This product includes software written by Tim
+ * Hudson (tjh@cryptsoft.com).
+ *
+ */
+
+/* NOTE: this file was auto generated by the mkerr.pl script: any changes
+ * made to it will be overwritten when the script next updates this file,
+ * only reason strings will be preserved.
+ */
+
+#include <stdio.h>
+#include <openssl/err.h>
+#include <openssl/dh.h>
+
+/* BEGIN ERROR CODES */
+#ifndef OPENSSL_NO_ERR
+
+#define ERR_FUNC(func) ERR_PACK(ERR_LIB_DH,func,0)
+#define ERR_REASON(reason) ERR_PACK(ERR_LIB_DH,0,reason)
+
+static ERR_STRING_DATA DH_str_functs[]=
+	{
+{ERR_FUNC(DH_F_COMPUTE_KEY),	"COMPUTE_KEY"},
+{ERR_FUNC(DH_F_DHPARAMS_PRINT),	"DHparams_print"},
+{ERR_FUNC(DH_F_DHPARAMS_PRINT_FP),	"DHparams_print_fp"},
+{ERR_FUNC(DH_F_DH_BUILTIN_GENPARAMS),	"DH_BUILTIN_GENPARAMS"},
+{ERR_FUNC(DH_F_DH_COMPUTE_KEY),	"DH_compute_key"},
+{ERR_FUNC(DH_F_DH_GENERATE_KEY),	"DH_generate_key"},
+{ERR_FUNC(DH_F_DH_GENERATE_PARAMETERS),	"DH_generate_parameters"},
+{ERR_FUNC(DH_F_DH_NEW_METHOD),	"DH_new_method"},
+{ERR_FUNC(DH_F_GENERATE_KEY),	"GENERATE_KEY"},
+{ERR_FUNC(DH_F_GENERATE_PARAMETERS),	"GENERATE_PARAMETERS"},
+{0,NULL}
+	};
+
+static ERR_STRING_DATA DH_str_reasons[]=
+	{
+{ERR_REASON(DH_R_BAD_GENERATOR)          ,"bad generator"},
+{ERR_REASON(DH_R_INVALID_PUBKEY)         ,"invalid public key"},
+{ERR_REASON(DH_R_KEY_SIZE_TOO_SMALL)     ,"key size too small"},
+{ERR_REASON(DH_R_MODULUS_TOO_LARGE)      ,"modulus too large"},
+{ERR_REASON(DH_R_NO_PRIVATE_VALUE)       ,"no private value"},
+{0,NULL}
+	};
+
+#endif
+
+void ERR_load_DH_strings(void)
+	{
+#ifndef OPENSSL_NO_ERR
+
+	if (ERR_func_error_string(DH_str_functs[0].error) == NULL)
+		{
+		ERR_load_strings(0,DH_str_functs);
+		ERR_load_strings(0,DH_str_reasons);
+		}
+#endif
+	}
diff --git a/Cryptlib/OpenSSL/crypto/dh/dh_gen.c b/Cryptlib/OpenSSL/crypto/dh/dh_gen.c
new file mode 100755
index 00000000..999e1deb
--- /dev/null
+++ b/Cryptlib/OpenSSL/crypto/dh/dh_gen.c
@@ -0,0 +1,179 @@
+/* crypto/dh/dh_gen.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.]
+ */
+
+/* NB: These functions have been upgraded - the previous prototypes are in
+ * dh_depr.c as wrappers to these ones.
+ *  - Geoff
+ */
+
+#include <stdio.h>
+#include "cryptlib.h"
+#include <openssl/bn.h>
+#include <openssl/dh.h>
+
+#ifndef OPENSSL_FIPS
+
+static int dh_builtin_genparams(DH *ret, int prime_len, int generator, BN_GENCB *cb);
+
+int DH_generate_parameters_ex(DH *ret, int prime_len, int generator, BN_GENCB *cb)
+	{
+	if(ret->meth->generate_params)
+		return ret->meth->generate_params(ret, prime_len, generator, cb);
+	return dh_builtin_genparams(ret, prime_len, generator, cb);
+	}
+
+/* We generate DH parameters as follows
+ * find a prime q which is prime_len/2 bits long.
+ * p=(2*q)+1 or (p-1)/2 = q
+ * For this case, g is a generator if
+ * g^((p-1)/q) mod p != 1 for values of q which are the factors of p-1.
+ * Since the factors of p-1 are q and 2, we just need to check
+ * g^2 mod p != 1 and g^q mod p != 1.
+ *
+ * Having said all that,
+ * there is another special case method for the generators 2, 3 and 5.
+ * for 2, p mod 24 == 11
+ * for 3, p mod 12 == 5  <<<<< does not work for safe primes.
+ * for 5, p mod 10 == 3 or 7
+ *
+ * Thanks to Phil Karn <karn@qualcomm.com> for the pointers about the
+ * special generators and for answering some of my questions.
+ *
+ * I've implemented the second simple method :-).
+ * Since DH should be using a safe prime (both p and q are prime),
+ * this generator function can take a very very long time to run.
+ */
+/* Actually there is no reason to insist that 'generator' be a generator.
+ * It's just as OK (and in some sense better) to use a generator of the
+ * order-q subgroup.
+ */
+static int dh_builtin_genparams(DH *ret, int prime_len, int generator, BN_GENCB *cb)
+	{
+	BIGNUM *t1,*t2;
+	int g,ok= -1;
+	BN_CTX *ctx=NULL;
+
+	ctx=BN_CTX_new();
+	if (ctx == NULL) goto err;
+	BN_CTX_start(ctx);
+	t1 = BN_CTX_get(ctx);
+	t2 = BN_CTX_get(ctx);
+	if (t1 == NULL || t2 == NULL) goto err;
+
+	/* Make sure 'ret' has the necessary elements */
+	if(!ret->p && ((ret->p = BN_new()) == NULL)) goto err;
+	if(!ret->g && ((ret->g = BN_new()) == NULL)) goto err;
+	
+	if (generator <= 1)
+		{
+		DHerr(DH_F_DH_BUILTIN_GENPARAMS, DH_R_BAD_GENERATOR);
+		goto err;
+		}
+	if (generator == DH_GENERATOR_2)
+		{
+		if (!BN_set_word(t1,24)) goto err;
+		if (!BN_set_word(t2,11)) goto err;
+		g=2;
+		}
+#if 0 /* does not work for safe primes */
+	else if (generator == DH_GENERATOR_3)
+		{
+		if (!BN_set_word(t1,12)) goto err;
+		if (!BN_set_word(t2,5)) goto err;
+		g=3;
+		}
+#endif
+	else if (generator == DH_GENERATOR_5)
+		{
+		if (!BN_set_word(t1,10)) goto err;
+		if (!BN_set_word(t2,3)) goto err;
+		/* BN_set_word(t3,7); just have to miss
+		 * out on these ones :-( */
+		g=5;
+		}
+	else
+		{
+		/* in the general case, don't worry if 'generator' is a
+		 * generator or not: since we are using safe primes,
+		 * it will generate either an order-q or an order-2q group,
+		 * which both is OK */
+		if (!BN_set_word(t1,2)) goto err;
+		if (!BN_set_word(t2,1)) goto err;
+		g=generator;
+		}
+	
+	if(!BN_generate_prime_ex(ret->p,prime_len,1,t1,t2,cb)) goto err;
+	if(!BN_GENCB_call(cb, 3, 0)) goto err;
+	if (!BN_set_word(ret->g,g)) goto err;
+	ok=1;
+err:
+	if (ok == -1)
+		{
+		DHerr(DH_F_DH_BUILTIN_GENPARAMS,ERR_R_BN_LIB);
+		ok=0;
+		}
+
+	if (ctx != NULL)
+		{
+		BN_CTX_end(ctx);
+		BN_CTX_free(ctx);
+		}
+	return ok;
+	}
+
+#endif
diff --git a/Cryptlib/OpenSSL/crypto/dh/dh_key.c b/Cryptlib/OpenSSL/crypto/dh/dh_key.c
new file mode 100755
index 00000000..79dd3318
--- /dev/null
+++ b/Cryptlib/OpenSSL/crypto/dh/dh_key.c
@@ -0,0 +1,267 @@
+/* crypto/dh/dh_key.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.]
+ */
+
+#include <stdio.h>
+#include "cryptlib.h"
+#include <openssl/bn.h>
+#include <openssl/rand.h>
+#include <openssl/dh.h>
+
+#ifndef OPENSSL_FIPS
+
+static int generate_key(DH *dh);
+static int compute_key(unsigned char *key, const BIGNUM *pub_key, DH *dh);
+static int dh_bn_mod_exp(const DH *dh, BIGNUM *r,
+			const BIGNUM *a, const BIGNUM *p,
+			const BIGNUM *m, BN_CTX *ctx,
+			BN_MONT_CTX *m_ctx);
+static int dh_init(DH *dh);
+static int dh_finish(DH *dh);
+
+int DH_generate_key(DH *dh)
+	{
+	return dh->meth->generate_key(dh);
+	}
+
+int DH_compute_key(unsigned char *key, const BIGNUM *pub_key, DH *dh)
+	{
+	return dh->meth->compute_key(key, pub_key, dh);
+	}
+
+static DH_METHOD dh_ossl = {
+"OpenSSL DH Method",
+generate_key,
+compute_key,
+dh_bn_mod_exp,
+dh_init,
+dh_finish,
+0,
+NULL,
+NULL
+};
+
+const DH_METHOD *DH_OpenSSL(void)
+{
+	return &dh_ossl;
+}
+
+static int generate_key(DH *dh)
+	{
+	int ok=0;
+	int generate_new_key=0;
+	unsigned l;
+	BN_CTX *ctx;
+	BN_MONT_CTX *mont=NULL;
+	BIGNUM *pub_key=NULL,*priv_key=NULL;
+
+	ctx = BN_CTX_new();
+	if (ctx == NULL) goto err;
+
+	if (dh->priv_key == NULL)
+		{
+		priv_key=BN_new();
+		if (priv_key == NULL) goto err;
+		generate_new_key=1;
+		}
+	else
+		priv_key=dh->priv_key;
+
+	if (dh->pub_key == NULL)
+		{
+		pub_key=BN_new();
+		if (pub_key == NULL) goto err;
+		}
+	else
+		pub_key=dh->pub_key;
+
+
+	if (dh->flags & DH_FLAG_CACHE_MONT_P)
+		{
+		mont = BN_MONT_CTX_set_locked(&dh->method_mont_p,
+				CRYPTO_LOCK_DH, dh->p, ctx);
+		if (!mont)
+			goto err;
+		}
+
+	if (generate_new_key)
+		{
+		l = dh->length ? dh->length : BN_num_bits(dh->p)-1; /* secret exponent length */
+		if (!BN_rand(priv_key, l, 0, 0)) goto err;
+		}
+
+	{
+		BIGNUM local_prk;
+		BIGNUM *prk;
+
+		if ((dh->flags & DH_FLAG_NO_EXP_CONSTTIME) == 0)
+			{
+			BN_init(&local_prk);
+			prk = &local_prk;
+			BN_with_flags(prk, priv_key, BN_FLG_CONSTTIME);
+			}
+		else
+			prk = priv_key;
+
+		if (!dh->meth->bn_mod_exp(dh, pub_key, dh->g, prk, dh->p, ctx, mont)) goto err;
+	}
+		
+	dh->pub_key=pub_key;
+	dh->priv_key=priv_key;
+	ok=1;
+err:
+	if (ok != 1)
+		DHerr(DH_F_GENERATE_KEY,ERR_R_BN_LIB);
+
+	if ((pub_key != NULL)  && (dh->pub_key == NULL))  BN_free(pub_key);
+	if ((priv_key != NULL) && (dh->priv_key == NULL)) BN_free(priv_key);
+	BN_CTX_free(ctx);
+	return(ok);
+	}
+
+static int compute_key(unsigned char *key, const BIGNUM *pub_key, DH *dh)
+	{
+	BN_CTX *ctx=NULL;
+	BN_MONT_CTX *mont=NULL;
+	BIGNUM *tmp;
+	int ret= -1;
+        int check_result;
+
+	if (BN_num_bits(dh->p) > OPENSSL_DH_MAX_MODULUS_BITS)
+		{
+		DHerr(DH_F_COMPUTE_KEY,DH_R_MODULUS_TOO_LARGE);
+		goto err;
+		}
+
+	ctx = BN_CTX_new();
+	if (ctx == NULL) goto err;
+	BN_CTX_start(ctx);
+	tmp = BN_CTX_get(ctx);
+	
+	if (dh->priv_key == NULL)
+		{
+		DHerr(DH_F_COMPUTE_KEY,DH_R_NO_PRIVATE_VALUE);
+		goto err;
+		}
+
+	if (dh->flags & DH_FLAG_CACHE_MONT_P)
+		{
+		mont = BN_MONT_CTX_set_locked(&dh->method_mont_p,
+				CRYPTO_LOCK_DH, dh->p, ctx);
+		if ((dh->flags & DH_FLAG_NO_EXP_CONSTTIME) == 0)
+			{
+			/* XXX */
+			BN_set_flags(dh->priv_key, BN_FLG_CONSTTIME);
+			}
+		if (!mont)
+			goto err;
+		}
+
+        if (!DH_check_pub_key(dh, pub_key, &check_result) || check_result)
+		{
+		DHerr(DH_F_COMPUTE_KEY,DH_R_INVALID_PUBKEY);
+		goto err;
+		}
+
+	if (!dh->meth->bn_mod_exp(dh, tmp, pub_key, dh->priv_key,dh->p,ctx,mont))
+		{
+		DHerr(DH_F_COMPUTE_KEY,ERR_R_BN_LIB);
+		goto err;
+		}
+
+	ret=BN_bn2bin(tmp,key);
+err:
+	if (ctx != NULL)
+		{
+		BN_CTX_end(ctx);
+		BN_CTX_free(ctx);
+		}
+	return(ret);
+	}
+
+static int dh_bn_mod_exp(const DH *dh, BIGNUM *r,
+			const BIGNUM *a, const BIGNUM *p,
+			const BIGNUM *m, BN_CTX *ctx,
+			BN_MONT_CTX *m_ctx)
+	{
+	/* If a is only one word long and constant time is false, use the faster
+	 * exponenentiation function.
+	 */
+	if (a->top == 1 && ((dh->flags & DH_FLAG_NO_EXP_CONSTTIME) != 0))
+		{
+		BN_ULONG A = a->d[0];
+		return BN_mod_exp_mont_word(r,A,p,m,ctx,m_ctx);
+		}
+	else
+		return BN_mod_exp_mont(r,a,p,m,ctx,m_ctx);
+	}
+
+
+static int dh_init(DH *dh)
+	{
+	dh->flags |= DH_FLAG_CACHE_MONT_P;
+	return(1);
+	}
+
+static int dh_finish(DH *dh)
+	{
+	if(dh->method_mont_p)
+		BN_MONT_CTX_free(dh->method_mont_p);
+	return(1);
+	}
+
+#endif
diff --git a/Cryptlib/OpenSSL/crypto/dh/dh_lib.c b/Cryptlib/OpenSSL/crypto/dh/dh_lib.c
new file mode 100755
index 00000000..7aef080e
--- /dev/null
+++ b/Cryptlib/OpenSSL/crypto/dh/dh_lib.c
@@ -0,0 +1,247 @@
+/* crypto/dh/dh_lib.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.]
+ */
+
+#include <stdio.h>
+#include "cryptlib.h"
+#include <openssl/bn.h>
+#include <openssl/dh.h>
+#ifndef OPENSSL_NO_ENGINE
+#include <openssl/engine.h>
+#endif
+
+const char DH_version[]="Diffie-Hellman" OPENSSL_VERSION_PTEXT;
+
+static const DH_METHOD *default_DH_method = NULL;
+
+void DH_set_default_method(const DH_METHOD *meth)
+	{
+	default_DH_method = meth;
+	}
+
+const DH_METHOD *DH_get_default_method(void)
+	{
+	if(!default_DH_method)
+		default_DH_method = DH_OpenSSL();
+	return default_DH_method;
+	}
+
+int DH_set_method(DH *dh, const DH_METHOD *meth)
+	{
+	/* NB: The caller is specifically setting a method, so it's not up to us
+	 * to deal with which ENGINE it comes from. */
+        const DH_METHOD *mtmp;
+        mtmp = dh->meth;
+        if (mtmp->finish) mtmp->finish(dh);
+#ifndef OPENSSL_NO_ENGINE
+	if (dh->engine)
+		{
+		ENGINE_finish(dh->engine);
+		dh->engine = NULL;
+		}
+#endif
+        dh->meth = meth;
+        if (meth->init) meth->init(dh);
+        return 1;
+	}
+
+DH *DH_new(void)
+	{
+	return DH_new_method(NULL);
+	}
+
+DH *DH_new_method(ENGINE *engine)
+	{
+	DH *ret;
+
+	ret=(DH *)OPENSSL_malloc(sizeof(DH));
+	if (ret == NULL)
+		{
+		DHerr(DH_F_DH_NEW_METHOD,ERR_R_MALLOC_FAILURE);
+		return(NULL);
+		}
+
+	ret->meth = DH_get_default_method();
+#ifndef OPENSSL_NO_ENGINE
+	if (engine)
+		{
+		if (!ENGINE_init(engine))
+			{
+			DHerr(DH_F_DH_NEW_METHOD, ERR_R_ENGINE_LIB);
+			OPENSSL_free(ret);
+			return NULL;
+			}
+		ret->engine = engine;
+		}
+	else
+		ret->engine = ENGINE_get_default_DH();
+	if(ret->engine)
+		{
+		ret->meth = ENGINE_get_DH(ret->engine);
+		if(!ret->meth)
+			{
+			DHerr(DH_F_DH_NEW_METHOD,ERR_R_ENGINE_LIB);
+			ENGINE_finish(ret->engine);
+			OPENSSL_free(ret);
+			return NULL;
+			}
+		}
+#endif
+
+	ret->pad=0;
+	ret->version=0;
+	ret->p=NULL;
+	ret->g=NULL;
+	ret->length=0;
+	ret->pub_key=NULL;
+	ret->priv_key=NULL;
+	ret->q=NULL;
+	ret->j=NULL;
+	ret->seed = NULL;
+	ret->seedlen = 0;
+	ret->counter = NULL;
+	ret->method_mont_p=NULL;
+	ret->references = 1;
+	ret->flags=ret->meth->flags;
+	CRYPTO_new_ex_data(CRYPTO_EX_INDEX_DH, ret, &ret->ex_data);
+	if ((ret->meth->init != NULL) && !ret->meth->init(ret))
+		{
+#ifndef OPENSSL_NO_ENGINE
+		if (ret->engine)
+			ENGINE_finish(ret->engine);
+#endif
+		CRYPTO_free_ex_data(CRYPTO_EX_INDEX_DH, ret, &ret->ex_data);
+		OPENSSL_free(ret);
+		ret=NULL;
+		}
+	return(ret);
+	}
+
+void DH_free(DH *r)
+	{
+	int i;
+	if(r == NULL) return;
+	i = CRYPTO_add(&r->references, -1, CRYPTO_LOCK_DH);
+#ifdef REF_PRINT
+	REF_PRINT("DH",r);
+#endif
+	if (i > 0) return;
+#ifdef REF_CHECK
+	if (i < 0)
+		{
+		fprintf(stderr,"DH_free, bad reference count\n");
+		abort();
+	}
+#endif
+
+	if (r->meth->finish)
+		r->meth->finish(r);
+#ifndef OPENSSL_NO_ENGINE
+	if (r->engine)
+		ENGINE_finish(r->engine);
+#endif
+
+	CRYPTO_free_ex_data(CRYPTO_EX_INDEX_DH, r, &r->ex_data);
+
+	if (r->p != NULL) BN_clear_free(r->p);
+	if (r->g != NULL) BN_clear_free(r->g);
+	if (r->q != NULL) BN_clear_free(r->q);
+	if (r->j != NULL) BN_clear_free(r->j);
+	if (r->seed) OPENSSL_free(r->seed);
+	if (r->counter != NULL) BN_clear_free(r->counter);
+	if (r->pub_key != NULL) BN_clear_free(r->pub_key);
+	if (r->priv_key != NULL) BN_clear_free(r->priv_key);
+	OPENSSL_free(r);
+	}
+
+int DH_up_ref(DH *r)
+	{
+	int i = CRYPTO_add(&r->references, 1, CRYPTO_LOCK_DH);
+#ifdef REF_PRINT
+	REF_PRINT("DH",r);
+#endif
+#ifdef REF_CHECK
+	if (i < 2)
+		{
+		fprintf(stderr, "DH_up, bad reference count\n");
+		abort();
+		}
+#endif
+	return ((i > 1) ? 1 : 0);
+	}
+
+int DH_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
+	     CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func)
+        {
+	return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_DH, argl, argp,
+				new_func, dup_func, free_func);
+        }
+
+int DH_set_ex_data(DH *d, int idx, void *arg)
+	{
+	return(CRYPTO_set_ex_data(&d->ex_data,idx,arg));
+	}
+
+void *DH_get_ex_data(DH *d, int idx)
+	{
+	return(CRYPTO_get_ex_data(&d->ex_data,idx));
+	}
+
+int DH_size(const DH *dh)
+	{
+	return(BN_num_bytes(dh->p));
+	}