[thirdparty/openssl.git] / providers / implementations / keymgmt / dh_kmgmt.c

/*
 * Copyright 2019 The OpenSSL Project Authors. All Rights Reserved.
 *
 * Licensed under the Apache License 2.0 (the "License").  You may not use
 * this file except in compliance with the License.  You can obtain a copy
 * in the file LICENSE in the source distribution or at
 * https://www.openssl.org/source/license.html
 */

#include <openssl/core_numbers.h>
#include <openssl/core_names.h>
#include <openssl/bn.h>
#include <openssl/params.h>
#include "internal/param_build.h"
#include "crypto/dh.h"
#include "prov/implementations.h"
#include "prov/providercommon.h"
#include "prov/provider_ctx.h"
#include "crypto/dh.h"

static OSSL_OP_keymgmt_new_fn dh_newdata;
static OSSL_OP_keymgmt_free_fn dh_freedata;
static OSSL_OP_keymgmt_get_params_fn dh_get_params;
static OSSL_OP_keymgmt_gettable_params_fn dh_gettable_params;
static OSSL_OP_keymgmt_has_fn dh_has;
static OSSL_OP_keymgmt_import_fn dh_import;
static OSSL_OP_keymgmt_import_types_fn dh_import_types;
static OSSL_OP_keymgmt_export_fn dh_export;
static OSSL_OP_keymgmt_export_types_fn dh_export_types;

#define DH_POSSIBLE_SELECTIONS                 \
    (OSSL_KEYMGMT_SELECT_KEYPAIR | OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS)

static int params_to_domparams(DH *dh, const OSSL_PARAM params[])
{
    const OSSL_PARAM *param_p, *param_g;
    BIGNUM *p = NULL, *g = NULL;

    if (dh == NULL)
        return 0;

    param_p = OSSL_PARAM_locate_const(params, OSSL_PKEY_PARAM_FFC_P);
    param_g = OSSL_PARAM_locate_const(params, OSSL_PKEY_PARAM_FFC_G);

    if ((param_p != NULL && !OSSL_PARAM_get_BN(param_p, &p))
        || (param_g != NULL && !OSSL_PARAM_get_BN(param_g, &g)))
        goto err;

    if (!DH_set0_pqg(dh, p, NULL, g))
        goto err;

    return 1;

 err:
    BN_free(p);
    BN_free(g);
    return 0;
}

static int domparams_to_params(DH *dh, OSSL_PARAM_BLD *tmpl)
{
    const BIGNUM *dh_p = NULL, *dh_g = NULL;

    if (dh == NULL)
        return 0;

    DH_get0_pqg(dh, &dh_p, NULL, &dh_g);
    if (dh_p != NULL
        && !ossl_param_bld_push_BN(tmpl, OSSL_PKEY_PARAM_FFC_P, dh_p))
        return 0;
    if (dh_g != NULL
        && !ossl_param_bld_push_BN(tmpl, OSSL_PKEY_PARAM_FFC_G, dh_g))
        return 0;

    return 1;
}

static int params_to_key(DH *dh, const OSSL_PARAM params[])
{
    const OSSL_PARAM *param_priv_key, *param_pub_key;
    BIGNUM *priv_key = NULL, *pub_key = NULL;

    if (dh == NULL)
        return 0;

    if (!params_to_domparams(dh, params))
        return 0;

    param_priv_key =
        OSSL_PARAM_locate_const(params, OSSL_PKEY_PARAM_PRIV_KEY);
    param_pub_key =
        OSSL_PARAM_locate_const(params, OSSL_PKEY_PARAM_PUB_KEY);

    /*
     * DH documentation says that a public key must be present if a
     * private key is present.
     * We want to have at least a public key either way, so we end up
     * requiring it unconditionally.
     */
    if (param_pub_key == NULL)
        return 0;

    if ((param_priv_key != NULL
         && !OSSL_PARAM_get_BN(param_priv_key, &priv_key))
        || !OSSL_PARAM_get_BN(param_pub_key, &pub_key))
        goto err;

    if (!DH_set0_key(dh, pub_key, priv_key))
        goto err;

    return 1;

 err:
    BN_free(priv_key);
    BN_free(pub_key);
    return 0;
}

static int key_to_params(DH *dh, OSSL_PARAM_BLD *tmpl)
{
    const BIGNUM *priv_key = NULL, *pub_key = NULL;

    if (dh == NULL)
        return 0;
    if (!domparams_to_params(dh, tmpl))
        return 0;

    DH_get0_key(dh, &pub_key, &priv_key);
    if (priv_key != NULL
        && !ossl_param_bld_push_BN(tmpl, OSSL_PKEY_PARAM_PRIV_KEY, priv_key))
        return 0;
    if (pub_key != NULL
        && !ossl_param_bld_push_BN(tmpl, OSSL_PKEY_PARAM_PUB_KEY, pub_key))
        return 0;

    return 1;
}

static void *dh_newdata(void *provctx)
{
    return dh_new_with_ctx(PROV_LIBRARY_CONTEXT_OF(provctx));
}

static void dh_freedata(void *keydata)
{
    DH_free(keydata);
}

static int dh_has(void *keydata, int selection)
{
    DH *dh = keydata;
    int ok = 0;

    if ((selection & DH_POSSIBLE_SELECTIONS) != 0)
        ok = 1;

    if ((selection & OSSL_KEYMGMT_SELECT_PUBLIC_KEY) != 0)
        ok = ok && (DH_get0_pub_key(dh) != NULL);
    if ((selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY) != 0)
        ok = ok && (DH_get0_priv_key(dh) != NULL);
    if ((selection & OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS) != 0)
        ok = ok && (DH_get0_p(dh) != NULL && DH_get0_g(dh) != NULL);
    return ok;
}

static int dh_import(void *keydata, int selection, const OSSL_PARAM params[])
{
    DH *dh = keydata;
    int ok = 0;

    if (dh == NULL)
        return 0;

    if ((selection & DH_POSSIBLE_SELECTIONS) != 0)
        ok = 1;

    if ((selection & OSSL_KEYMGMT_SELECT_ALL_PARAMETERS) != 0)
        ok = ok && params_to_domparams(dh, params);
    if ((selection & OSSL_KEYMGMT_SELECT_KEYPAIR) != 0)
        ok = ok && params_to_key(dh, params);

    return ok;
}

static int dh_export(void *keydata, int selection, OSSL_CALLBACK *param_cb,
                     void *cbarg)
{
    DH *dh = keydata;
    OSSL_PARAM_BLD tmpl;
    OSSL_PARAM *params = NULL;
    int ok = 1;

    if (dh == NULL)
        return 0;

    ossl_param_bld_init(&tmpl);

    if ((selection & OSSL_KEYMGMT_SELECT_ALL_PARAMETERS) != 0)
        ok = ok && domparams_to_params(dh, &tmpl);
    if ((selection & OSSL_KEYMGMT_SELECT_KEYPAIR) != 0)
        ok = ok && key_to_params(dh, &tmpl);

    if (!ok
        || (params = ossl_param_bld_to_param(&tmpl)) == NULL)
        return 0;

    ok = param_cb(params, cbarg);
    ossl_param_bld_free(params);
    return ok;
}

/* IMEXPORT = IMPORT + EXPORT */

# define DH_IMEXPORTABLE_PARAMETERS                     \
    OSSL_PARAM_BN(OSSL_PKEY_PARAM_FFC_P, NULL, 0),      \
    OSSL_PARAM_BN(OSSL_PKEY_PARAM_FFC_G, NULL, 0)
# define DH_IMEXPORTABLE_PUBLIC_KEY                     \
    OSSL_PARAM_BN(OSSL_PKEY_PARAM_PUB_KEY, NULL, 0)
# define DH_IMEXPORTABLE_PRIVATE_KEY                    \
    OSSL_PARAM_BN(OSSL_PKEY_PARAM_PRIV_KEY, NULL, 0)
static const OSSL_PARAM dh_all_types[] = {
    DH_IMEXPORTABLE_PARAMETERS,
    DH_IMEXPORTABLE_PUBLIC_KEY,
    DH_IMEXPORTABLE_PRIVATE_KEY,
    OSSL_PARAM_END
};
static const OSSL_PARAM dh_parameter_types[] = {
    DH_IMEXPORTABLE_PARAMETERS,
    OSSL_PARAM_END
};
static const OSSL_PARAM dh_key_types[] = {
    DH_IMEXPORTABLE_PUBLIC_KEY,
    DH_IMEXPORTABLE_PRIVATE_KEY,
    OSSL_PARAM_END
};
static const OSSL_PARAM *dh_types[] = {
    NULL,                        /* Index 0 = none of them */
    dh_parameter_types,          /* Index 1 = parameter types */
    dh_key_types,                /* Index 2 = key types */
    dh_all_types                 /* Index 3 = 1 + 2 */
};

static const OSSL_PARAM *dh_imexport_types(int selection)
{
    int type_select = 0;

    if ((selection & OSSL_KEYMGMT_SELECT_ALL_PARAMETERS) != 0)
        type_select += 1;
    if ((selection & OSSL_KEYMGMT_SELECT_KEYPAIR) != 0)
        type_select += 2;
    return dh_types[type_select];
}

static const OSSL_PARAM *dh_import_types(int selection)
{
    return dh_imexport_types(selection);
}

static const OSSL_PARAM *dh_export_types(int selection)
{
    return dh_imexport_types(selection);
}

static ossl_inline int dh_get_params(void *key, OSSL_PARAM params[])
{
    DH *dh = key;
    OSSL_PARAM *p;

    if ((p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_BITS)) != NULL
        && !OSSL_PARAM_set_int(p, DH_bits(dh)))
        return 0;
    if ((p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_SECURITY_BITS)) != NULL
        && !OSSL_PARAM_set_int(p, DH_security_bits(dh)))
        return 0;
    if ((p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_MAX_SIZE)) != NULL
        && !OSSL_PARAM_set_int(p, DH_size(dh)))
        return 0;
    return 1;
}

static const OSSL_PARAM dh_params[] = {
    OSSL_PARAM_int(OSSL_PKEY_PARAM_BITS, NULL),
    OSSL_PARAM_int(OSSL_PKEY_PARAM_SECURITY_BITS, NULL),
    OSSL_PARAM_int(OSSL_PKEY_PARAM_MAX_SIZE, NULL),
    OSSL_PARAM_END
};

static const OSSL_PARAM *dh_gettable_params(void)
{
    return dh_params;
}

const OSSL_DISPATCH dh_keymgmt_functions[] = {
    { OSSL_FUNC_KEYMGMT_NEW, (void (*)(void))dh_newdata },
    { OSSL_FUNC_KEYMGMT_FREE, (void (*)(void))dh_freedata },
    { OSSL_FUNC_KEYMGMT_GET_PARAMS, (void (*) (void))dh_get_params },
    { OSSL_FUNC_KEYMGMT_GETTABLE_PARAMS, (void (*) (void))dh_gettable_params },
    { OSSL_FUNC_KEYMGMT_HAS, (void (*)(void))dh_has },
    { OSSL_FUNC_KEYMGMT_IMPORT, (void (*)(void))dh_import },
    { OSSL_FUNC_KEYMGMT_IMPORT_TYPES, (void (*)(void))dh_import_types },
    { OSSL_FUNC_KEYMGMT_EXPORT, (void (*)(void))dh_export },
    { OSSL_FUNC_KEYMGMT_EXPORT_TYPES, (void (*)(void))dh_export_types },
    { 0, NULL }
};
Commit	Line	Data
8b84b075 RL	1	/*
	2	* Copyright 2019 The OpenSSL Project Authors. All Rights Reserved.
	3	*
	4	* Licensed under the Apache License 2.0 (the "License"). You may not use
	5	* this file except in compliance with the License. You can obtain a copy
	6	* in the file LICENSE in the source distribution or at
	7	* https://www.openssl.org/source/license.html
	8	*/
	9
	10	#include <openssl/core_numbers.h>
	11	#include <openssl/core_names.h>
	12	#include <openssl/bn.h>
8b84b075	13	#include <openssl/params.h>
1640d48c	14	#include "internal/param_build.h"
8dd5c603	15	#include "crypto/dh.h"
af3e7e1b	16	#include "prov/implementations.h"
1640d48c	17	#include "prov/providercommon.h"
8083fd3a SL	18	#include "prov/provider_ctx.h"
8083fd3a SL	19	#include "crypto/dh.h"
8b84b075	20
8dd5c603 RL	21	static OSSL_OP_keymgmt_new_fn dh_newdata;
8dd5c603 RL	22	static OSSL_OP_keymgmt_free_fn dh_freedata;
273a67e3 RL	23	static OSSL_OP_keymgmt_get_params_fn dh_get_params;
273a67e3 RL	24	static OSSL_OP_keymgmt_gettable_params_fn dh_gettable_params;
8dd5c603 RL	25	static OSSL_OP_keymgmt_has_fn dh_has;
8dd5c603 RL	26	static OSSL_OP_keymgmt_import_fn dh_import;
273a67e3	27	static OSSL_OP_keymgmt_import_types_fn dh_import_types;
8dd5c603	28	static OSSL_OP_keymgmt_export_fn dh_export;
273a67e3	29	static OSSL_OP_keymgmt_export_types_fn dh_export_types;
8dd5c603 RL	30
8dd5c603 RL	31	#define DH_POSSIBLE_SELECTIONS \
273a67e3	32	(OSSL_KEYMGMT_SELECT_KEYPAIR \| OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS)
8b84b075	33
14e3e00f	34	static int params_to_domparams(DH *dh, const OSSL_PARAM params[])
8b84b075	35	{
14e3e00f RL	36	const OSSL_PARAM param_p, param_g;
14e3e00f RL	37	BIGNUM p = NULL, g = NULL;
8b84b075 RL	38
	39	if (dh == NULL)
	40	return 0;
	41
4889dadc MC	42	param_p = OSSL_PARAM_locate_const(params, OSSL_PKEY_PARAM_FFC_P);
4889dadc MC	43	param_g = OSSL_PARAM_locate_const(params, OSSL_PKEY_PARAM_FFC_G);
14e3e00f RL	44
	45	if ((param_p != NULL && !OSSL_PARAM_get_BN(param_p, &p))
	46	\|\| (param_g != NULL && !OSSL_PARAM_get_BN(param_g, &g)))
	47	goto err;
	48
	49	if (!DH_set0_pqg(dh, p, NULL, g))
	50	goto err;
	51
	52	return 1;
	53
	54	err:
	55	BN_free(p);
	56	BN_free(g);
	57	return 0;
	58	}
	59
1640d48c	60	static int domparams_to_params(DH dh, OSSL_PARAM_BLD tmpl)
c8f23016	61	{
c8f23016 RL	62	const BIGNUM dh_p = NULL, dh_g = NULL;
	63
	64	if (dh == NULL)
	65	return 0;
	66
	67	DH_get0_pqg(dh, &dh_p, NULL, &dh_g);
1640d48c RL	68	if (dh_p != NULL
1640d48c RL	69	&& !ossl_param_bld_push_BN(tmpl, OSSL_PKEY_PARAM_FFC_P, dh_p))
c8f23016	70	return 0;
1640d48c RL	71	if (dh_g != NULL
1640d48c RL	72	&& !ossl_param_bld_push_BN(tmpl, OSSL_PKEY_PARAM_FFC_G, dh_g))
c8f23016 RL	73	return 0;
	74
	75	return 1;
	76	}
	77
14e3e00f RL	78	static int params_to_key(DH *dh, const OSSL_PARAM params[])
	79	{
	80	const OSSL_PARAM param_priv_key, param_pub_key;
	81	BIGNUM priv_key = NULL, pub_key = NULL;
	82
	83	if (dh == NULL)
	84	return 0;
	85
	86	if (!params_to_domparams(dh, params))
	87	return 0;
	88
8b84b075	89	param_priv_key =
90d3cb57	90	OSSL_PARAM_locate_const(params, OSSL_PKEY_PARAM_PRIV_KEY);
8b84b075	91	param_pub_key =
90d3cb57	92	OSSL_PARAM_locate_const(params, OSSL_PKEY_PARAM_PUB_KEY);
8b84b075 RL	93
	94	/*
	95	* DH documentation says that a public key must be present if a
	96	* private key is present.
	97	* We want to have at least a public key either way, so we end up
	98	* requiring it unconditionally.
	99	*/
	100	if (param_pub_key == NULL)
	101	return 0;
	102
14e3e00f RL	103	if ((param_priv_key != NULL
14e3e00f RL	104	&& !OSSL_PARAM_get_BN(param_priv_key, &priv_key))
8b84b075 RL	105	\|\| !OSSL_PARAM_get_BN(param_pub_key, &pub_key))
	106	goto err;
	107
8b84b075 RL	108	if (!DH_set0_key(dh, pub_key, priv_key))
8b84b075 RL	109	goto err;
8b84b075 RL	110
	111	return 1;
	112
	113	err:
8b84b075 RL	114	BN_free(priv_key);
	115	BN_free(pub_key);
	116	return 0;
	117	}
	118
1640d48c	119	static int key_to_params(DH dh, OSSL_PARAM_BLD tmpl)
c8f23016	120	{
c8f23016 RL	121	const BIGNUM priv_key = NULL, pub_key = NULL;
	122
	123	if (dh == NULL)
	124	return 0;
1640d48c	125	if (!domparams_to_params(dh, tmpl))
c8f23016 RL	126	return 0;
	127
	128	DH_get0_key(dh, &pub_key, &priv_key);
1640d48c	129	if (priv_key != NULL
90d3cb57	130	&& !ossl_param_bld_push_BN(tmpl, OSSL_PKEY_PARAM_PRIV_KEY, priv_key))
c8f23016	131	return 0;
1640d48c	132	if (pub_key != NULL
90d3cb57	133	&& !ossl_param_bld_push_BN(tmpl, OSSL_PKEY_PARAM_PUB_KEY, pub_key))
c8f23016 RL	134	return 0;
	135
	136	return 1;
	137	}
	138
8dd5c603	139	static void dh_newdata(void provctx)
14e3e00f	140	{
8083fd3a	141	return dh_new_with_ctx(PROV_LIBRARY_CONTEXT_OF(provctx));
14e3e00f RL	142	}
14e3e00f RL	143
8dd5c603	144	static void dh_freedata(void *keydata)
c8f23016	145	{
8dd5c603 RL	146	DH_free(keydata);
8dd5c603 RL	147	}
1640d48c	148
8dd5c603 RL	149	static int dh_has(void *keydata, int selection)
	150	{
	151	DH *dh = keydata;
	152	int ok = 0;
	153
	154	if ((selection & DH_POSSIBLE_SELECTIONS) != 0)
	155	ok = 1;
	156
	157	if ((selection & OSSL_KEYMGMT_SELECT_PUBLIC_KEY) != 0)
	158	ok = ok && (DH_get0_pub_key(dh) != NULL);
	159	if ((selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY) != 0)
	160	ok = ok && (DH_get0_priv_key(dh) != NULL);
	161	if ((selection & OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS) != 0)
	162	ok = ok && (DH_get0_p(dh) != NULL && DH_get0_g(dh) != NULL);
	163	return ok;
c8f23016 RL	164	}
c8f23016 RL	165
8dd5c603	166	static int dh_import(void *keydata, int selection, const OSSL_PARAM params[])
8b84b075	167	{
8dd5c603 RL	168	DH *dh = keydata;
	169	int ok = 0;
	170
	171	if (dh == NULL)
	172	return 0;
	173
	174	if ((selection & DH_POSSIBLE_SELECTIONS) != 0)
	175	ok = 1;
	176
	177	if ((selection & OSSL_KEYMGMT_SELECT_ALL_PARAMETERS) != 0)
	178	ok = ok && params_to_domparams(dh, params);
	179	if ((selection & OSSL_KEYMGMT_SELECT_KEYPAIR) != 0)
	180	ok = ok && params_to_key(dh, params);
	181
	182	return ok;
8b84b075 RL	183	}
8b84b075 RL	184
8dd5c603 RL	185	static int dh_export(void keydata, int selection, OSSL_CALLBACK param_cb,
8dd5c603 RL	186	void *cbarg)
c8f23016	187	{
8dd5c603	188	DH *dh = keydata;
1640d48c RL	189	OSSL_PARAM_BLD tmpl;
1640d48c RL	190	OSSL_PARAM *params = NULL;
8dd5c603 RL	191	int ok = 1;
	192
	193	if (dh == NULL)
	194	return 0;
1640d48c RL	195
1640d48c RL	196	ossl_param_bld_init(&tmpl);
8dd5c603 RL	197
	198	if ((selection & OSSL_KEYMGMT_SELECT_ALL_PARAMETERS) != 0)
	199	ok = ok && domparams_to_params(dh, &tmpl);
	200	if ((selection & OSSL_KEYMGMT_SELECT_KEYPAIR) != 0)
	201	ok = ok && key_to_params(dh, &tmpl);
	202
	203	if (!ok
1640d48c RL	204	\|\| (params = ossl_param_bld_to_param(&tmpl)) == NULL)
1640d48c RL	205	return 0;
8dd5c603 RL	206
8dd5c603 RL	207	ok = param_cb(params, cbarg);
1640d48c	208	ossl_param_bld_free(params);
8dd5c603	209	return ok;
c8f23016 RL	210	}
c8f23016 RL	211
273a67e3 RL	212	/* IMEXPORT = IMPORT + EXPORT */
	213
	214	# define DH_IMEXPORTABLE_PARAMETERS \
	215	OSSL_PARAM_BN(OSSL_PKEY_PARAM_FFC_P, NULL, 0), \
	216	OSSL_PARAM_BN(OSSL_PKEY_PARAM_FFC_G, NULL, 0)
	217	# define DH_IMEXPORTABLE_PUBLIC_KEY \
90d3cb57	218	OSSL_PARAM_BN(OSSL_PKEY_PARAM_PUB_KEY, NULL, 0)
273a67e3	219	# define DH_IMEXPORTABLE_PRIVATE_KEY \
90d3cb57	220	OSSL_PARAM_BN(OSSL_PKEY_PARAM_PRIV_KEY, NULL, 0)
273a67e3 RL	221	static const OSSL_PARAM dh_all_types[] = {
	222	DH_IMEXPORTABLE_PARAMETERS,
	223	DH_IMEXPORTABLE_PUBLIC_KEY,
	224	DH_IMEXPORTABLE_PRIVATE_KEY,
	225	OSSL_PARAM_END
	226	};
	227	static const OSSL_PARAM dh_parameter_types[] = {
	228	DH_IMEXPORTABLE_PARAMETERS,
	229	OSSL_PARAM_END
	230	};
	231	static const OSSL_PARAM dh_key_types[] = {
	232	DH_IMEXPORTABLE_PUBLIC_KEY,
	233	DH_IMEXPORTABLE_PRIVATE_KEY,
	234	OSSL_PARAM_END
	235	};
	236	static const OSSL_PARAM *dh_types[] = {
	237	NULL, /* Index 0 = none of them */
	238	dh_parameter_types, /* Index 1 = parameter types */
	239	dh_key_types, /* Index 2 = key types */
	240	dh_all_types /* Index 3 = 1 + 2 */
	241	};
	242
	243	static const OSSL_PARAM *dh_imexport_types(int selection)
	244	{
	245	int type_select = 0;
	246
	247	if ((selection & OSSL_KEYMGMT_SELECT_ALL_PARAMETERS) != 0)
	248	type_select += 1;
	249	if ((selection & OSSL_KEYMGMT_SELECT_KEYPAIR) != 0)
	250	type_select += 2;
	251	return dh_types[type_select];
	252	}
	253
	254	static const OSSL_PARAM *dh_import_types(int selection)
	255	{
	256	return dh_imexport_types(selection);
	257	}
	258
	259	static const OSSL_PARAM *dh_export_types(int selection)
	260	{
	261	return dh_imexport_types(selection);
	262	}
	263
8dd5c603	264	static ossl_inline int dh_get_params(void *key, OSSL_PARAM params[])
9e5aaf78 RL	265	{
	266	DH *dh = key;
	267	OSSL_PARAM *p;
	268
	269	if ((p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_BITS)) != NULL
	270	&& !OSSL_PARAM_set_int(p, DH_bits(dh)))
	271	return 0;
	272	if ((p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_SECURITY_BITS)) != NULL
	273	&& !OSSL_PARAM_set_int(p, DH_security_bits(dh)))
	274	return 0;
	275	if ((p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_MAX_SIZE)) != NULL
	276	&& !OSSL_PARAM_set_int(p, DH_size(dh)))
	277	return 0;
	278	return 1;
	279	}
	280
273a67e3 RL	281	static const OSSL_PARAM dh_params[] = {
	282	OSSL_PARAM_int(OSSL_PKEY_PARAM_BITS, NULL),
	283	OSSL_PARAM_int(OSSL_PKEY_PARAM_SECURITY_BITS, NULL),
	284	OSSL_PARAM_int(OSSL_PKEY_PARAM_MAX_SIZE, NULL),
	285	OSSL_PARAM_END
	286	};
	287
	288	static const OSSL_PARAM *dh_gettable_params(void)
	289	{
	290	return dh_params;
	291	}
	292
8b84b075	293	const OSSL_DISPATCH dh_keymgmt_functions[] = {
8dd5c603 RL	294	{ OSSL_FUNC_KEYMGMT_NEW, (void (*)(void))dh_newdata },
8dd5c603 RL	295	{ OSSL_FUNC_KEYMGMT_FREE, (void (*)(void))dh_freedata },
273a67e3 RL	296	{ OSSL_FUNC_KEYMGMT_GET_PARAMS, (void (*) (void))dh_get_params },
273a67e3 RL	297	{ OSSL_FUNC_KEYMGMT_GETTABLE_PARAMS, (void (*) (void))dh_gettable_params },
8dd5c603 RL	298	{ OSSL_FUNC_KEYMGMT_HAS, (void (*)(void))dh_has },
8dd5c603 RL	299	{ OSSL_FUNC_KEYMGMT_IMPORT, (void (*)(void))dh_import },
273a67e3	300	{ OSSL_FUNC_KEYMGMT_IMPORT_TYPES, (void (*)(void))dh_import_types },
8dd5c603	301	{ OSSL_FUNC_KEYMGMT_EXPORT, (void (*)(void))dh_export },
273a67e3	302	{ OSSL_FUNC_KEYMGMT_EXPORT_TYPES, (void (*)(void))dh_export_types },
8b84b075 RL	303	{ 0, NULL }
8b84b075 RL	304	};