[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/dh.h>
#include <openssl/params.h>
#include "internal/param_build.h"
#include "crypto/dh.h"
#include "prov/implementations.h"
#include "prov/providercommon.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();
}

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>
	13	#include <openssl/dh.h>
	14	#include <openssl/params.h>
1640d48c	15	#include "internal/param_build.h"
8dd5c603	16	#include "crypto/dh.h"
af3e7e1b	17	#include "prov/implementations.h"
1640d48c	18	#include "prov/providercommon.h"
8b84b075	19
8dd5c603 RL	20	static OSSL_OP_keymgmt_new_fn dh_newdata;
8dd5c603 RL	21	static OSSL_OP_keymgmt_free_fn dh_freedata;
273a67e3 RL	22	static OSSL_OP_keymgmt_get_params_fn dh_get_params;
273a67e3 RL	23	static OSSL_OP_keymgmt_gettable_params_fn dh_gettable_params;
8dd5c603 RL	24	static OSSL_OP_keymgmt_has_fn dh_has;
8dd5c603 RL	25	static OSSL_OP_keymgmt_import_fn dh_import;
273a67e3	26	static OSSL_OP_keymgmt_import_types_fn dh_import_types;
8dd5c603	27	static OSSL_OP_keymgmt_export_fn dh_export;
273a67e3	28	static OSSL_OP_keymgmt_export_types_fn dh_export_types;
8dd5c603 RL	29
8dd5c603 RL	30	#define DH_POSSIBLE_SELECTIONS \
273a67e3	31	(OSSL_KEYMGMT_SELECT_KEYPAIR \| OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS)
8b84b075	32
14e3e00f	33	static int params_to_domparams(DH *dh, const OSSL_PARAM params[])
8b84b075	34	{
14e3e00f RL	35	const OSSL_PARAM param_p, param_g;
14e3e00f RL	36	BIGNUM p = NULL, g = NULL;
8b84b075 RL	37
	38	if (dh == NULL)
	39	return 0;
	40
4889dadc MC	41	param_p = OSSL_PARAM_locate_const(params, OSSL_PKEY_PARAM_FFC_P);
4889dadc MC	42	param_g = OSSL_PARAM_locate_const(params, OSSL_PKEY_PARAM_FFC_G);
14e3e00f RL	43
	44	if ((param_p != NULL && !OSSL_PARAM_get_BN(param_p, &p))
	45	\|\| (param_g != NULL && !OSSL_PARAM_get_BN(param_g, &g)))
	46	goto err;
	47
	48	if (!DH_set0_pqg(dh, p, NULL, g))
	49	goto err;
	50
	51	return 1;
	52
	53	err:
	54	BN_free(p);
	55	BN_free(g);
	56	return 0;
	57	}
	58
1640d48c	59	static int domparams_to_params(DH dh, OSSL_PARAM_BLD tmpl)
c8f23016	60	{
c8f23016 RL	61	const BIGNUM dh_p = NULL, dh_g = NULL;
	62
	63	if (dh == NULL)
	64	return 0;
	65
	66	DH_get0_pqg(dh, &dh_p, NULL, &dh_g);
1640d48c RL	67	if (dh_p != NULL
1640d48c RL	68	&& !ossl_param_bld_push_BN(tmpl, OSSL_PKEY_PARAM_FFC_P, dh_p))
c8f23016	69	return 0;
1640d48c RL	70	if (dh_g != NULL
1640d48c RL	71	&& !ossl_param_bld_push_BN(tmpl, OSSL_PKEY_PARAM_FFC_G, dh_g))
c8f23016 RL	72	return 0;
	73
	74	return 1;
	75	}
	76
14e3e00f RL	77	static int params_to_key(DH *dh, const OSSL_PARAM params[])
	78	{
	79	const OSSL_PARAM param_priv_key, param_pub_key;
	80	BIGNUM priv_key = NULL, pub_key = NULL;
	81
	82	if (dh == NULL)
	83	return 0;
	84
	85	if (!params_to_domparams(dh, params))
	86	return 0;
	87
8b84b075	88	param_priv_key =
90d3cb57	89	OSSL_PARAM_locate_const(params, OSSL_PKEY_PARAM_PRIV_KEY);
8b84b075	90	param_pub_key =
90d3cb57	91	OSSL_PARAM_locate_const(params, OSSL_PKEY_PARAM_PUB_KEY);
8b84b075 RL	92
	93	/*
	94	* DH documentation says that a public key must be present if a
	95	* private key is present.
	96	* We want to have at least a public key either way, so we end up
	97	* requiring it unconditionally.
	98	*/
	99	if (param_pub_key == NULL)
	100	return 0;
	101
14e3e00f RL	102	if ((param_priv_key != NULL
14e3e00f RL	103	&& !OSSL_PARAM_get_BN(param_priv_key, &priv_key))
8b84b075 RL	104	\|\| !OSSL_PARAM_get_BN(param_pub_key, &pub_key))
	105	goto err;
	106
8b84b075 RL	107	if (!DH_set0_key(dh, pub_key, priv_key))
8b84b075 RL	108	goto err;
8b84b075 RL	109
	110	return 1;
	111
	112	err:
8b84b075 RL	113	BN_free(priv_key);
	114	BN_free(pub_key);
	115	return 0;
	116	}
	117
1640d48c	118	static int key_to_params(DH dh, OSSL_PARAM_BLD tmpl)
c8f23016	119	{
c8f23016 RL	120	const BIGNUM priv_key = NULL, pub_key = NULL;
	121
	122	if (dh == NULL)
	123	return 0;
1640d48c	124	if (!domparams_to_params(dh, tmpl))
c8f23016 RL	125	return 0;
	126
	127	DH_get0_key(dh, &pub_key, &priv_key);
1640d48c	128	if (priv_key != NULL
90d3cb57	129	&& !ossl_param_bld_push_BN(tmpl, OSSL_PKEY_PARAM_PRIV_KEY, priv_key))
c8f23016	130	return 0;
1640d48c	131	if (pub_key != NULL
90d3cb57	132	&& !ossl_param_bld_push_BN(tmpl, OSSL_PKEY_PARAM_PUB_KEY, pub_key))
c8f23016 RL	133	return 0;
	134
	135	return 1;
	136	}
	137
8dd5c603	138	static void dh_newdata(void provctx)
14e3e00f	139	{
8dd5c603	140	return DH_new();
14e3e00f RL	141	}
14e3e00f RL	142
8dd5c603	143	static void dh_freedata(void *keydata)
c8f23016	144	{
8dd5c603 RL	145	DH_free(keydata);
8dd5c603 RL	146	}
1640d48c	147
8dd5c603 RL	148	static int dh_has(void *keydata, int selection)
	149	{
	150	DH *dh = keydata;
	151	int ok = 0;
	152
	153	if ((selection & DH_POSSIBLE_SELECTIONS) != 0)
	154	ok = 1;
	155
	156	if ((selection & OSSL_KEYMGMT_SELECT_PUBLIC_KEY) != 0)
	157	ok = ok && (DH_get0_pub_key(dh) != NULL);
	158	if ((selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY) != 0)
	159	ok = ok && (DH_get0_priv_key(dh) != NULL);
	160	if ((selection & OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS) != 0)
	161	ok = ok && (DH_get0_p(dh) != NULL && DH_get0_g(dh) != NULL);
	162	return ok;
c8f23016 RL	163	}
c8f23016 RL	164
8dd5c603	165	static int dh_import(void *keydata, int selection, const OSSL_PARAM params[])
8b84b075	166	{
8dd5c603 RL	167	DH *dh = keydata;
	168	int ok = 0;
	169
	170	if (dh == NULL)
	171	return 0;
	172
	173	if ((selection & DH_POSSIBLE_SELECTIONS) != 0)
	174	ok = 1;
	175
	176	if ((selection & OSSL_KEYMGMT_SELECT_ALL_PARAMETERS) != 0)
	177	ok = ok && params_to_domparams(dh, params);
	178	if ((selection & OSSL_KEYMGMT_SELECT_KEYPAIR) != 0)
	179	ok = ok && params_to_key(dh, params);
	180
	181	return ok;
8b84b075 RL	182	}
8b84b075 RL	183
8dd5c603 RL	184	static int dh_export(void keydata, int selection, OSSL_CALLBACK param_cb,
8dd5c603 RL	185	void *cbarg)
c8f23016	186	{
8dd5c603	187	DH *dh = keydata;
1640d48c RL	188	OSSL_PARAM_BLD tmpl;
1640d48c RL	189	OSSL_PARAM *params = NULL;
8dd5c603 RL	190	int ok = 1;
	191
	192	if (dh == NULL)
	193	return 0;
1640d48c RL	194
1640d48c RL	195	ossl_param_bld_init(&tmpl);
8dd5c603 RL	196
	197	if ((selection & OSSL_KEYMGMT_SELECT_ALL_PARAMETERS) != 0)
	198	ok = ok && domparams_to_params(dh, &tmpl);
	199	if ((selection & OSSL_KEYMGMT_SELECT_KEYPAIR) != 0)
	200	ok = ok && key_to_params(dh, &tmpl);
	201
	202	if (!ok
1640d48c RL	203	\|\| (params = ossl_param_bld_to_param(&tmpl)) == NULL)
1640d48c RL	204	return 0;
8dd5c603 RL	205
8dd5c603 RL	206	ok = param_cb(params, cbarg);
1640d48c	207	ossl_param_bld_free(params);
8dd5c603	208	return ok;
c8f23016 RL	209	}
c8f23016 RL	210
273a67e3 RL	211	/* IMEXPORT = IMPORT + EXPORT */
	212
	213	# define DH_IMEXPORTABLE_PARAMETERS \
	214	OSSL_PARAM_BN(OSSL_PKEY_PARAM_FFC_P, NULL, 0), \
	215	OSSL_PARAM_BN(OSSL_PKEY_PARAM_FFC_G, NULL, 0)
	216	# define DH_IMEXPORTABLE_PUBLIC_KEY \
90d3cb57	217	OSSL_PARAM_BN(OSSL_PKEY_PARAM_PUB_KEY, NULL, 0)
273a67e3	218	# define DH_IMEXPORTABLE_PRIVATE_KEY \
90d3cb57	219	OSSL_PARAM_BN(OSSL_PKEY_PARAM_PRIV_KEY, NULL, 0)
273a67e3 RL	220	static const OSSL_PARAM dh_all_types[] = {
	221	DH_IMEXPORTABLE_PARAMETERS,
	222	DH_IMEXPORTABLE_PUBLIC_KEY,
	223	DH_IMEXPORTABLE_PRIVATE_KEY,
	224	OSSL_PARAM_END
	225	};
	226	static const OSSL_PARAM dh_parameter_types[] = {
	227	DH_IMEXPORTABLE_PARAMETERS,
	228	OSSL_PARAM_END
	229	};
	230	static const OSSL_PARAM dh_key_types[] = {
	231	DH_IMEXPORTABLE_PUBLIC_KEY,
	232	DH_IMEXPORTABLE_PRIVATE_KEY,
	233	OSSL_PARAM_END
	234	};
	235	static const OSSL_PARAM *dh_types[] = {
	236	NULL, /* Index 0 = none of them */
	237	dh_parameter_types, /* Index 1 = parameter types */
	238	dh_key_types, /* Index 2 = key types */
	239	dh_all_types /* Index 3 = 1 + 2 */
	240	};
	241
	242	static const OSSL_PARAM *dh_imexport_types(int selection)
	243	{
	244	int type_select = 0;
	245
	246	if ((selection & OSSL_KEYMGMT_SELECT_ALL_PARAMETERS) != 0)
	247	type_select += 1;
	248	if ((selection & OSSL_KEYMGMT_SELECT_KEYPAIR) != 0)
	249	type_select += 2;
	250	return dh_types[type_select];
	251	}
	252
	253	static const OSSL_PARAM *dh_import_types(int selection)
	254	{
	255	return dh_imexport_types(selection);
	256	}
	257
	258	static const OSSL_PARAM *dh_export_types(int selection)
	259	{
	260	return dh_imexport_types(selection);
	261	}
	262
8dd5c603	263	static ossl_inline int dh_get_params(void *key, OSSL_PARAM params[])
9e5aaf78 RL	264	{
	265	DH *dh = key;
	266	OSSL_PARAM *p;
	267
	268	if ((p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_BITS)) != NULL
	269	&& !OSSL_PARAM_set_int(p, DH_bits(dh)))
	270	return 0;
	271	if ((p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_SECURITY_BITS)) != NULL
	272	&& !OSSL_PARAM_set_int(p, DH_security_bits(dh)))
	273	return 0;
	274	if ((p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_MAX_SIZE)) != NULL
	275	&& !OSSL_PARAM_set_int(p, DH_size(dh)))
	276	return 0;
	277	return 1;
	278	}
	279
273a67e3 RL	280	static const OSSL_PARAM dh_params[] = {
	281	OSSL_PARAM_int(OSSL_PKEY_PARAM_BITS, NULL),
	282	OSSL_PARAM_int(OSSL_PKEY_PARAM_SECURITY_BITS, NULL),
	283	OSSL_PARAM_int(OSSL_PKEY_PARAM_MAX_SIZE, NULL),
	284	OSSL_PARAM_END
	285	};
	286
	287	static const OSSL_PARAM *dh_gettable_params(void)
	288	{
	289	return dh_params;
	290	}
	291
8b84b075	292	const OSSL_DISPATCH dh_keymgmt_functions[] = {
8dd5c603 RL	293	{ OSSL_FUNC_KEYMGMT_NEW, (void (*)(void))dh_newdata },
8dd5c603 RL	294	{ OSSL_FUNC_KEYMGMT_FREE, (void (*)(void))dh_freedata },
273a67e3 RL	295	{ OSSL_FUNC_KEYMGMT_GET_PARAMS, (void (*) (void))dh_get_params },
273a67e3 RL	296	{ OSSL_FUNC_KEYMGMT_GETTABLE_PARAMS, (void (*) (void))dh_gettable_params },
8dd5c603 RL	297	{ OSSL_FUNC_KEYMGMT_HAS, (void (*)(void))dh_has },
8dd5c603 RL	298	{ OSSL_FUNC_KEYMGMT_IMPORT, (void (*)(void))dh_import },
273a67e3	299	{ OSSL_FUNC_KEYMGMT_IMPORT_TYPES, (void (*)(void))dh_import_types },
8dd5c603	300	{ OSSL_FUNC_KEYMGMT_EXPORT, (void (*)(void))dh_export },
273a67e3	301	{ OSSL_FUNC_KEYMGMT_EXPORT_TYPES, (void (*)(void))dh_export_types },
8b84b075 RL	302	{ 0, NULL }
8b84b075 RL	303	};