import OpenSSL-1.0.0a

3 files changed, 834 insertions, 0 deletions

diff --git a/lib/libcrypto/dh/dh_ameth.c b/lib/libcrypto/dh/dh_ameth.c
new file mode 100644
index 00000000000..377caf96c93
--- /dev/null
+++ b/lib/libcrypto/dh/dh_ameth.c
@@ -0,0 +1,500 @@
+/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
+ * project 2006.
+ */
+/* ====================================================================
+ * Copyright (c) 2006 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/x509.h>
+#include <openssl/asn1.h>
+#include <openssl/dh.h>
+#include <openssl/bn.h>
+#include "asn1_locl.h"
+
+static void int_dh_free(EVP_PKEY *pkey)
+	{
+	DH_free(pkey->pkey.dh);
+	}
+
+static int dh_pub_decode(EVP_PKEY *pkey, X509_PUBKEY *pubkey)
+	{
+	const unsigned char *p, *pm;
+	int pklen, pmlen;
+	int ptype;
+	void *pval;
+	ASN1_STRING *pstr;
+	X509_ALGOR *palg;
+	ASN1_INTEGER *public_key = NULL;
+
+	DH *dh = NULL;
+
+	if (!X509_PUBKEY_get0_param(NULL, &p, &pklen, &palg, pubkey))
+		return 0;
+	X509_ALGOR_get0(NULL, &ptype, &pval, palg);
+
+	if (ptype != V_ASN1_SEQUENCE)
+		{
+		DHerr(DH_F_DH_PUB_DECODE, DH_R_PARAMETER_ENCODING_ERROR);
+		goto err;
+		}
+
+	pstr = pval;	
+	pm = pstr->data;
+	pmlen = pstr->length;
+
+	if (!(dh = d2i_DHparams(NULL, &pm, pmlen)))
+		{
+		DHerr(DH_F_DH_PUB_DECODE, DH_R_DECODE_ERROR);
+		goto err;
+		}
+
+	if (!(public_key=d2i_ASN1_INTEGER(NULL, &p, pklen)))
+		{
+		DHerr(DH_F_DH_PUB_DECODE, DH_R_DECODE_ERROR);
+		goto err;
+		}
+
+	/* We have parameters now set public key */
+	if (!(dh->pub_key = ASN1_INTEGER_to_BN(public_key, NULL)))
+		{
+		DHerr(DH_F_DH_PUB_DECODE, DH_R_BN_DECODE_ERROR);
+		goto err;
+		}
+
+	ASN1_INTEGER_free(public_key);
+	EVP_PKEY_assign_DH(pkey, dh);
+	return 1;
+
+	err:
+	if (public_key)
+		ASN1_INTEGER_free(public_key);
+	if (dh)
+		DH_free(dh);
+	return 0;
+
+	}
+
+static int dh_pub_encode(X509_PUBKEY *pk, const EVP_PKEY *pkey)
+	{
+	DH *dh;
+	void *pval = NULL;
+	int ptype;
+	unsigned char *penc = NULL;
+	int penclen;
+	ASN1_STRING *str;
+	ASN1_INTEGER *pub_key = NULL;
+
+	dh=pkey->pkey.dh;
+
+	str = ASN1_STRING_new();
+	str->length = i2d_DHparams(dh, &str->data);
+	if (str->length <= 0)
+		{
+		DHerr(DH_F_DH_PUB_ENCODE, ERR_R_MALLOC_FAILURE);
+		goto err;
+		}
+	pval = str;
+	ptype = V_ASN1_SEQUENCE;
+
+	pub_key = BN_to_ASN1_INTEGER(dh->pub_key, NULL);
+	if (!pub_key)
+		goto err;
+
+	penclen = i2d_ASN1_INTEGER(pub_key, &penc);
+
+	ASN1_INTEGER_free(pub_key);
+
+	if (penclen <= 0)
+		{
+		DHerr(DH_F_DH_PUB_ENCODE, ERR_R_MALLOC_FAILURE);
+		goto err;
+		}
+
+	if (X509_PUBKEY_set0_param(pk, OBJ_nid2obj(EVP_PKEY_DH),
+				ptype, pval, penc, penclen))
+		return 1;
+
+	err:
+	if (penc)
+		OPENSSL_free(penc);
+	if (pval)
+		ASN1_STRING_free(pval);
+
+	return 0;
+	}
+
+
+/* PKCS#8 DH is defined in PKCS#11 of all places. It is similar to DH in
+ * that the AlgorithmIdentifier contains the paramaters, the private key
+ * is explcitly included and the pubkey must be recalculated.
+ */
+	
+static int dh_priv_decode(EVP_PKEY *pkey, PKCS8_PRIV_KEY_INFO *p8)
+	{
+	const unsigned char *p, *pm;
+	int pklen, pmlen;
+	int ptype;
+	void *pval;
+	ASN1_STRING *pstr;
+	X509_ALGOR *palg;
+	ASN1_INTEGER *privkey = NULL;
+
+	DH *dh = NULL;
+
+	if (!PKCS8_pkey_get0(NULL, &p, &pklen, &palg, p8))
+		return 0;
+
+	X509_ALGOR_get0(NULL, &ptype, &pval, palg);
+
+	if (ptype != V_ASN1_SEQUENCE)
+			goto decerr;
+
+	if (!(privkey=d2i_ASN1_INTEGER(NULL, &p, pklen)))
+		goto decerr;
+
+
+	pstr = pval;	
+	pm = pstr->data;
+	pmlen = pstr->length;
+	if (!(dh = d2i_DHparams(NULL, &pm, pmlen)))
+		goto decerr;
+	/* We have parameters now set private key */
+	if (!(dh->priv_key = ASN1_INTEGER_to_BN(privkey, NULL)))
+		{
+		DHerr(DH_F_DH_PRIV_DECODE,DH_R_BN_ERROR);
+		goto dherr;
+		}
+	/* Calculate public key */
+	if (!DH_generate_key(dh))
+		goto dherr;
+
+	EVP_PKEY_assign_DH(pkey, dh);
+
+	ASN1_INTEGER_free(privkey);
+
+	return 1;
+
+	decerr:
+	DHerr(DH_F_DH_PRIV_DECODE, EVP_R_DECODE_ERROR);
+	dherr:
+	DH_free(dh);
+	return 0;
+	}
+
+static int dh_priv_encode(PKCS8_PRIV_KEY_INFO *p8, const EVP_PKEY *pkey)
+{
+	ASN1_STRING *params = NULL;
+	ASN1_INTEGER *prkey = NULL;
+	unsigned char *dp = NULL;
+	int dplen;
+
+	params = ASN1_STRING_new();
+
+	if (!params)
+		{
+		DHerr(DH_F_DH_PRIV_ENCODE,ERR_R_MALLOC_FAILURE);
+		goto err;
+		}
+
+	params->length = i2d_DHparams(pkey->pkey.dh, &params->data);
+	if (params->length <= 0)
+		{
+		DHerr(DH_F_DH_PRIV_ENCODE,ERR_R_MALLOC_FAILURE);
+		goto err;
+		}
+	params->type = V_ASN1_SEQUENCE;
+
+	/* Get private key into integer */
+	prkey = BN_to_ASN1_INTEGER(pkey->pkey.dh->priv_key, NULL);
+
+	if (!prkey)
+		{
+		DHerr(DH_F_DH_PRIV_ENCODE,DH_R_BN_ERROR);
+		goto err;
+		}
+
+	dplen = i2d_ASN1_INTEGER(prkey, &dp);
+
+	ASN1_INTEGER_free(prkey);
+
+	if (!PKCS8_pkey_set0(p8, OBJ_nid2obj(NID_dhKeyAgreement), 0,
+				V_ASN1_SEQUENCE, params, dp, dplen))
+		goto err;
+
+	return 1;
+
+err:
+	if (dp != NULL)
+		OPENSSL_free(dp);
+	if (params != NULL)
+		ASN1_STRING_free(params);
+	if (prkey != NULL)
+		ASN1_INTEGER_free(prkey);
+	return 0;
+}
+
+
+static void update_buflen(const BIGNUM *b, size_t *pbuflen)
+	{
+	size_t i;
+	if (!b)
+		return;
+	if (*pbuflen < (i = (size_t)BN_num_bytes(b)))
+			*pbuflen = i;
+	}
+
+static int dh_param_decode(EVP_PKEY *pkey,
+					const unsigned char **pder, int derlen)
+	{
+	DH *dh;
+	if (!(dh = d2i_DHparams(NULL, pder, derlen)))
+		{
+		DHerr(DH_F_DH_PARAM_DECODE, ERR_R_DH_LIB);
+		return 0;
+		}
+	EVP_PKEY_assign_DH(pkey, dh);
+	return 1;
+	}
+
+static int dh_param_encode(const EVP_PKEY *pkey, unsigned char **pder)
+	{
+	return i2d_DHparams(pkey->pkey.dh, pder);
+	}
+
+static int do_dh_print(BIO *bp, const DH *x, int indent,
+						ASN1_PCTX *ctx, int ptype)
+	{
+	unsigned char *m=NULL;
+	int reason=ERR_R_BUF_LIB,ret=0;
+	size_t buf_len=0;
+
+	const char *ktype = NULL;
+
+	BIGNUM *priv_key, *pub_key;
+
+	if (ptype == 2)
+		priv_key = x->priv_key;
+	else
+		priv_key = NULL;
+
+	if (ptype > 0)
+		pub_key = x->pub_key;
+	else
+		pub_key = NULL;
+
+	update_buflen(x->p, &buf_len);
+
+	if (buf_len == 0)
+		{
+		reason = ERR_R_PASSED_NULL_PARAMETER;
+		goto err;
+		}
+
+	update_buflen(x->g, &buf_len);
+	update_buflen(pub_key, &buf_len);
+	update_buflen(priv_key, &buf_len);
+
+	if (ptype == 2)
+		ktype = "PKCS#3 DH Private-Key";
+	else if (ptype == 1)
+		ktype = "PKCS#3 DH Public-Key";
+	else
+		ktype = "PKCS#3 DH Parameters";
+
+	m= OPENSSL_malloc(buf_len+10);
+	if (m == NULL)
+		{
+		reason=ERR_R_MALLOC_FAILURE;
+		goto err;
+		}
+
+	BIO_indent(bp, indent, 128);
+	if (BIO_printf(bp,"%s: (%d bit)\n", ktype, BN_num_bits(x->p)) <= 0)
+		goto err;
+	indent += 4;
+
+	if (!ASN1_bn_print(bp,"private-key:",priv_key,m,indent)) goto err;
+	if (!ASN1_bn_print(bp,"public-key:",pub_key,m,indent)) goto err;
+
+	if (!ASN1_bn_print(bp,"prime:",x->p,m,indent)) goto err;
+	if (!ASN1_bn_print(bp,"generator:",x->g,m,indent)) goto err;
+	if (x->length != 0)
+		{
+		BIO_indent(bp, indent, 128);
+		if (BIO_printf(bp,"recommended-private-length: %d bits\n",
+			(int)x->length) <= 0) goto err;
+		}
+
+
+	ret=1;
+	if (0)
+		{
+err:
+		DHerr(DH_F_DO_DH_PRINT,reason);
+		}
+	if (m != NULL) OPENSSL_free(m);
+	return(ret);
+	}
+
+static int int_dh_size(const EVP_PKEY *pkey)
+	{
+	return(DH_size(pkey->pkey.dh));
+	}
+
+static int dh_bits(const EVP_PKEY *pkey)
+	{
+	return BN_num_bits(pkey->pkey.dh->p);
+	}
+
+static int dh_cmp_parameters(const EVP_PKEY *a, const EVP_PKEY *b)
+	{
+	if (	BN_cmp(a->pkey.dh->p,b->pkey.dh->p) ||
+		BN_cmp(a->pkey.dh->g,b->pkey.dh->g))
+		return 0;
+	else
+		return 1;
+	}
+
+static int dh_copy_parameters(EVP_PKEY *to, const EVP_PKEY *from)
+	{
+	BIGNUM *a;
+
+	if ((a=BN_dup(from->pkey.dh->p)) == NULL)
+		return 0;
+	if (to->pkey.dh->p != NULL)
+		BN_free(to->pkey.dh->p);
+	to->pkey.dh->p=a;
+
+	if ((a=BN_dup(from->pkey.dh->g)) == NULL)
+		return 0;
+	if (to->pkey.dh->g != NULL)
+		BN_free(to->pkey.dh->g);
+	to->pkey.dh->g=a;
+
+	return 1;
+	}
+
+static int dh_missing_parameters(const EVP_PKEY *a)
+	{
+	if (!a->pkey.dh->p || !a->pkey.dh->g)
+		return 1;
+	return 0;
+	}
+
+static int dh_pub_cmp(const EVP_PKEY *a, const EVP_PKEY *b)
+	{
+	if (dh_cmp_parameters(a, b) == 0)
+		return 0;
+	if (BN_cmp(b->pkey.dh->pub_key,a->pkey.dh->pub_key) != 0)
+		return 0;
+	else
+		return 1;
+	}
+
+static int dh_param_print(BIO *bp, const EVP_PKEY *pkey, int indent,
+							ASN1_PCTX *ctx)
+	{
+	return do_dh_print(bp, pkey->pkey.dh, indent, ctx, 0);
+	}
+
+static int dh_public_print(BIO *bp, const EVP_PKEY *pkey, int indent,
+							ASN1_PCTX *ctx)
+	{
+	return do_dh_print(bp, pkey->pkey.dh, indent, ctx, 1);
+	}
+
+static int dh_private_print(BIO *bp, const EVP_PKEY *pkey, int indent,
+							ASN1_PCTX *ctx)
+	{
+	return do_dh_print(bp, pkey->pkey.dh, indent, ctx, 2);
+	}
+
+int DHparams_print(BIO *bp, const DH *x)
+	{
+	return do_dh_print(bp, x, 4, NULL, 0);
+	}
+
+const EVP_PKEY_ASN1_METHOD dh_asn1_meth = 
+	{
+	EVP_PKEY_DH,
+	EVP_PKEY_DH,
+	0,
+
+	"DH",
+	"OpenSSL PKCS#3 DH method",
+
+	dh_pub_decode,
+	dh_pub_encode,
+	dh_pub_cmp,
+	dh_public_print,
+
+	dh_priv_decode,
+	dh_priv_encode,
+	dh_private_print,
+
+	int_dh_size,
+	dh_bits,
+
+	dh_param_decode,
+	dh_param_encode,
+	dh_missing_parameters,
+	dh_copy_parameters,
+	dh_cmp_parameters,
+	dh_param_print,
+
+	int_dh_free,
+	0
+	};
+
diff --git a/lib/libcrypto/dh/dh_pmeth.c b/lib/libcrypto/dh/dh_pmeth.c
new file mode 100644
index 00000000000..5ae72b7d4cc
--- /dev/null
+++ b/lib/libcrypto/dh/dh_pmeth.c
@@ -0,0 +1,254 @@
+/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
+ * project 2006.
+ */
+/* ====================================================================
+ * Copyright (c) 2006 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/asn1t.h>
+#include <openssl/x509.h>
+#include <openssl/evp.h>
+#include <openssl/dh.h>
+#include <openssl/bn.h>
+#include "evp_locl.h"
+
+/* DH pkey context structure */
+
+typedef struct
+	{
+	/* Parameter gen parameters */
+	int prime_len;
+	int generator;
+	int use_dsa;
+	/* Keygen callback info */
+	int gentmp[2];
+	/* message digest */
+	} DH_PKEY_CTX;
+
+static int pkey_dh_init(EVP_PKEY_CTX *ctx)
+	{
+	DH_PKEY_CTX *dctx;
+	dctx = OPENSSL_malloc(sizeof(DH_PKEY_CTX));
+	if (!dctx)
+		return 0;
+	dctx->prime_len = 1024;
+	dctx->generator = 2;
+	dctx->use_dsa = 0;
+
+	ctx->data = dctx;
+	ctx->keygen_info = dctx->gentmp;
+	ctx->keygen_info_count = 2;
+	
+	return 1;
+	}
+
+static int pkey_dh_copy(EVP_PKEY_CTX *dst, EVP_PKEY_CTX *src)
+	{
+	DH_PKEY_CTX *dctx, *sctx;
+	if (!pkey_dh_init(dst))
+		return 0;
+       	sctx = src->data;
+	dctx = dst->data;
+	dctx->prime_len = sctx->prime_len;
+	dctx->generator = sctx->generator;
+	dctx->use_dsa = sctx->use_dsa;
+	return 1;
+	}
+
+static void pkey_dh_cleanup(EVP_PKEY_CTX *ctx)
+	{
+	DH_PKEY_CTX *dctx = ctx->data;
+	if (dctx)
+		OPENSSL_free(dctx);
+	}
+
+static int pkey_dh_ctrl(EVP_PKEY_CTX *ctx, int type, int p1, void *p2)
+	{
+	DH_PKEY_CTX *dctx = ctx->data;
+	switch (type)
+		{
+		case EVP_PKEY_CTRL_DH_PARAMGEN_PRIME_LEN:
+		if (p1 < 256)
+			return -2;
+		dctx->prime_len = p1;
+		return 1;
+
+		case EVP_PKEY_CTRL_DH_PARAMGEN_GENERATOR:
+		dctx->generator = p1;
+		return 1;
+
+		case EVP_PKEY_CTRL_PEER_KEY:
+		/* Default behaviour is OK */
+		return 1;
+
+		default:
+		return -2;
+
+		}
+	}
+
+			
+static int pkey_dh_ctrl_str(EVP_PKEY_CTX *ctx,
+			const char *type, const char *value)
+	{
+	if (!strcmp(type, "dh_paramgen_prime_len"))
+		{
+		int len;
+		len = atoi(value);
+		return EVP_PKEY_CTX_set_dh_paramgen_prime_len(ctx, len);
+		}
+	if (!strcmp(type, "dh_paramgen_generator"))
+		{
+		int len;
+		len = atoi(value);
+		return EVP_PKEY_CTX_set_dh_paramgen_generator(ctx, len);
+		}
+	return -2;
+	}
+
+static int pkey_dh_paramgen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey)
+	{
+	DH *dh = NULL;
+	DH_PKEY_CTX *dctx = ctx->data;
+	BN_GENCB *pcb, cb;
+	int ret;
+	if (ctx->pkey_gencb)
+		{
+		pcb = &cb;
+		evp_pkey_set_cb_translate(pcb, ctx);
+		}
+	else
+		pcb = NULL;
+	dh = DH_new();
+	if (!dh)
+		return 0;
+	ret = DH_generate_parameters_ex(dh,
+					dctx->prime_len, dctx->generator, pcb);
+	if (ret)
+		EVP_PKEY_assign_DH(pkey, dh);
+	else
+		DH_free(dh);
+	return ret;
+	}
+
+static int pkey_dh_keygen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey)
+	{
+	DH *dh = NULL;
+	if (ctx->pkey == NULL)
+		{
+		DHerr(DH_F_PKEY_DH_KEYGEN, DH_R_NO_PARAMETERS_SET);
+		return 0;
+		}
+	dh = DH_new();
+	if (!dh)
+		return 0;
+	EVP_PKEY_assign_DH(pkey, dh);
+	/* Note: if error return, pkey is freed by parent routine */
+	if (!EVP_PKEY_copy_parameters(pkey, ctx->pkey))
+		return 0;
+	return DH_generate_key(pkey->pkey.dh);
+	}
+
+static int pkey_dh_derive(EVP_PKEY_CTX *ctx, unsigned char *key, size_t *keylen)
+	{
+	int ret;
+	if (!ctx->pkey || !ctx->peerkey)
+		{
+		DHerr(DH_F_PKEY_DH_DERIVE, DH_R_KEYS_NOT_SET);
+		return 0;
+		}
+	ret = DH_compute_key(key, ctx->peerkey->pkey.dh->pub_key,
+							ctx->pkey->pkey.dh);
+	if (ret < 0)
+		return ret;
+	*keylen = ret;
+	return 1;
+	}
+
+const EVP_PKEY_METHOD dh_pkey_meth = 
+	{
+	EVP_PKEY_DH,
+	EVP_PKEY_FLAG_AUTOARGLEN,
+	pkey_dh_init,
+	pkey_dh_copy,
+	pkey_dh_cleanup,
+
+	0,
+	pkey_dh_paramgen,
+
+	0,
+	pkey_dh_keygen,
+
+	0,
+	0,
+
+	0,
+	0,
+
+	0,0,
+
+	0,0,0,0,
+
+	0,0,
+
+	0,0,
+
+	0,
+	pkey_dh_derive,
+
+	pkey_dh_ctrl,
+	pkey_dh_ctrl_str
+
+	};
diff --git a/lib/libcrypto/dh/dh_prn.c b/lib/libcrypto/dh/dh_prn.c
new file mode 100644
index 00000000000..ae58c2ac873
--- /dev/null
+++ b/lib/libcrypto/dh/dh_prn.c
@@ -0,0 +1,80 @@
+/* crypto/asn1/t_pkey.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/evp.h>
+#include <openssl/dh.h>
+
+#ifndef OPENSSL_NO_FP_API
+int DHparams_print_fp(FILE *fp, const DH *x)
+	{
+	BIO *b;
+	int ret;
+
+	if ((b=BIO_new(BIO_s_file())) == NULL)
+		{
+		DHerr(DH_F_DHPARAMS_PRINT_FP,ERR_R_BUF_LIB);
+		return(0);
+		}
+	BIO_set_fp(b,fp,BIO_NOCLOSE);
+	ret=DHparams_print(b, x);
+	BIO_free(b);
+	return(ret);
+	}
+#endif