[thirdparty/openssl.git] / providers / implementations / serializers / serializer_ecx_priv.c

/*
 * Copyright 2020 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/err.h>
#include <openssl/pem.h>
#include <openssl/types.h>
#include <openssl/params.h>
#include "crypto/ecx.h"
#include "prov/bio.h"
#include "prov/implementations.h"
#include "prov/provider_ctx.h"
#include "serializer_local.h"

static OSSL_OP_serializer_newctx_fn x25519_priv_newctx;
static OSSL_OP_serializer_newctx_fn x448_priv_newctx;
static OSSL_OP_serializer_newctx_fn ed25519_priv_newctx;
static OSSL_OP_serializer_newctx_fn ed448_priv_newctx;
static OSSL_OP_serializer_freectx_fn ecx_priv_freectx;
static OSSL_OP_serializer_set_ctx_params_fn ecx_priv_set_ctx_params;
static OSSL_OP_serializer_settable_ctx_params_fn ecx_priv_settable_ctx_params;
static OSSL_OP_serializer_serialize_data_fn ecx_priv_der_data;
static OSSL_OP_serializer_serialize_object_fn ecx_priv_der;
static OSSL_OP_serializer_serialize_data_fn ecx_priv_pem_data;
static OSSL_OP_serializer_serialize_object_fn ecx_priv_pem;

static OSSL_OP_serializer_serialize_data_fn ecx_priv_print_data;
static OSSL_OP_serializer_serialize_object_fn ecx_priv_print;

 /*
 * Context used for private key serialization.
 */
struct ecx_priv_ctx_st {
    void *provctx;

    struct pkcs8_encrypt_ctx_st sc;
    ECX_KEY_TYPE type;
};

/* Private key : context */
static void *ecx_priv_newctx(void *provctx, ECX_KEY_TYPE type)
{
    struct ecx_priv_ctx_st *ctx = OPENSSL_zalloc(sizeof(*ctx));

    if (ctx != NULL) {
        ctx->provctx = provctx;

        /* -1 is the "whatever" indicator, i.e. the PKCS8 library default PBE */
        ctx->sc.pbe_nid = -1;
        ctx->type = type;
    }
    return ctx;
}

static void *x25519_priv_newctx(void *provctx)
{
    return ecx_priv_newctx(provctx, ECX_KEY_TYPE_X25519);
}

static void *x448_priv_newctx(void *provctx)
{
    return ecx_priv_newctx(provctx, ECX_KEY_TYPE_X448);
}

static void *ed25519_priv_newctx(void *provctx)
{
    return ecx_priv_newctx(provctx, ECX_KEY_TYPE_ED25519);
}

static void *ed448_priv_newctx(void *provctx)
{
    return ecx_priv_newctx(provctx, ECX_KEY_TYPE_ED448);
}

static void ecx_priv_freectx(void *vctx)
{
    struct ecx_priv_ctx_st *ctx = vctx;

    EVP_CIPHER_free(ctx->sc.cipher);
    OPENSSL_free(ctx->sc.cipher_pass);
    OPENSSL_free(ctx);
}

static const OSSL_PARAM *ecx_priv_settable_ctx_params(void)
{
    static const OSSL_PARAM settables[] = {
        OSSL_PARAM_utf8_string(OSSL_SERIALIZER_PARAM_CIPHER, NULL, 0),
        OSSL_PARAM_octet_string(OSSL_SERIALIZER_PARAM_PASS, NULL, 0),
        OSSL_PARAM_END,
    };

    return settables;
}

static int ecx_priv_set_ctx_params(void *vctx, const OSSL_PARAM params[])
{
    struct ecx_priv_ctx_st *ctx = vctx;
    const OSSL_PARAM *p;

    p = OSSL_PARAM_locate_const(params, OSSL_SERIALIZER_PARAM_CIPHER);
    if (p != NULL) {
        const OSSL_PARAM *propsp =
            OSSL_PARAM_locate_const(params, OSSL_SERIALIZER_PARAM_PROPERTIES);
        const char *props;

        if (p->data_type != OSSL_PARAM_UTF8_STRING)
            return 0;
        if (propsp != NULL && propsp->data_type != OSSL_PARAM_UTF8_STRING)
            return 0;
        props = (propsp != NULL ? propsp->data : NULL);

        EVP_CIPHER_free(ctx->sc.cipher);
        ctx->sc.cipher_intent = p->data != NULL;
        if (p->data != NULL
            && ((ctx->sc.cipher = EVP_CIPHER_fetch(NULL, p->data, props))
                == NULL))
            return 0;
    }
    p = OSSL_PARAM_locate_const(params, OSSL_SERIALIZER_PARAM_PASS);
    if (p != NULL) {
        OPENSSL_free(ctx->sc.cipher_pass);
        ctx->sc.cipher_pass = NULL;
        if (!OSSL_PARAM_get_octet_string(p, &ctx->sc.cipher_pass, 0,
                                         &ctx->sc.cipher_pass_length))
            return 0;
    }
    return 1;
}

/* Private key : DER */
static int ecx_priv_der_data(void *vctx, const OSSL_PARAM params[],
                             OSSL_CORE_BIO *out,
                             OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
{
    struct ecx_priv_ctx_st *ctx = vctx;
    OSSL_OP_keymgmt_new_fn *ecx_new;
    OSSL_OP_keymgmt_free_fn *ecx_free;
    OSSL_OP_keymgmt_import_fn *ecx_import;
    int ok = 0;

    ecx_get_new_free_import(ctx->type, &ecx_new, &ecx_free, &ecx_import);

    if (ecx_import != NULL) {
        ECX_KEY *ecxkey;

        if ((ecxkey = ecx_new(ctx->provctx)) != NULL
            && ecx_import(ecxkey, OSSL_KEYMGMT_SELECT_KEYPAIR, params)
            && ecx_priv_der(ctx, ecxkey, out, cb, cbarg))
            ok = 1;
        ecx_free(ecxkey);
    }
    return ok;
}

static int ecx_priv_der(void *vctx, void *vecxkey, OSSL_CORE_BIO *cout,
                        OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
{
    struct ecx_priv_ctx_st *ctx = vctx;
    ECX_KEY *ecxkey = vecxkey;
    int ret;
    int nid = KEYTYPE2NID(ctx->type);
    BIO *out = bio_new_from_core_bio(ctx->provctx, cout);

    if (out == NULL)
        return 0;

    ctx->sc.cb = cb;
    ctx->sc.cbarg = cbarg;

    ret = ossl_prov_write_priv_der_from_obj(out, ecxkey,
                                            nid,
                                            NULL,
                                            ossl_prov_ecx_priv_to_der,
                                            &ctx->sc);
    BIO_free(out);

    return ret;
}

/* Private key : PEM */
static int ecx_priv_pem_data(void *vctx, const OSSL_PARAM params[],
                             OSSL_CORE_BIO *out,
                             OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
{
    struct ecx_priv_ctx_st *ctx = vctx;
    OSSL_OP_keymgmt_new_fn *ecx_new;
    OSSL_OP_keymgmt_free_fn *ecx_free;
    OSSL_OP_keymgmt_import_fn *ecx_import;
    int ok = 0;

    ecx_get_new_free_import(ctx->type, &ecx_new, &ecx_free, &ecx_import);

    if (ecx_import != NULL) {
        ECX_KEY *ecxkey;

        if ((ecxkey = ecx_new(ctx->provctx)) != NULL
            && ecx_import(ecxkey, OSSL_KEYMGMT_SELECT_KEYPAIR, params)
            && ecx_priv_pem(ctx->provctx, ecxkey, out, cb, cbarg))
            ok = 1;
        ecx_free(ecxkey);
    }
    return ok;
}

static int ecx_priv_pem(void *vctx, void *ecxkey, OSSL_CORE_BIO *cout,
                       OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
{
    struct ecx_priv_ctx_st *ctx = vctx;
    int ret;
    int nid = KEYTYPE2NID(ctx->type);
    BIO *out = bio_new_from_core_bio(ctx->provctx, cout);

    if (out == NULL)
        return 0;

    ctx->sc.cb = cb;
    ctx->sc.cbarg = cbarg;

    ret = ossl_prov_write_priv_pem_from_obj(out, ecxkey,
                                            nid,
                                            NULL,
                                            ossl_prov_ecx_priv_to_der,
                                            &ctx->sc);
    BIO_free(out);

    return ret;
}

static int ecx_priv_print_data(void *vctx, const OSSL_PARAM params[],
                               OSSL_CORE_BIO *out,
                               OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
{
    struct ecx_priv_ctx_st *ctx = vctx;
    OSSL_OP_keymgmt_new_fn *ecx_new;
    OSSL_OP_keymgmt_free_fn *ecx_free;
    OSSL_OP_keymgmt_import_fn *ecx_import;
    int ok = 0;

    ecx_get_new_free_import(ctx->type, &ecx_new, &ecx_free, &ecx_import);

    if (ecx_import != NULL) {
        ECX_KEY *ecxkey;

        if ((ecxkey = ecx_new(ctx->provctx)) != NULL
            && ecx_import(ecxkey, OSSL_KEYMGMT_SELECT_KEYPAIR, params)
            && ecx_priv_print(ctx, ecxkey, out, cb, cbarg))
            ok = 1;
        ecx_free(ecxkey);
    }
    return ok;
}

static int ecx_priv_print(void *vctx, void *ecxkey, OSSL_CORE_BIO *cout,
                         OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
{
    struct ecx_priv_ctx_st *ctx = vctx;
    BIO *out = bio_new_from_core_bio(ctx->provctx, cout);
    int ret;

    if (out == NULL)
        return 0;

    ret = ossl_prov_print_ecx(out, ecxkey, ecx_print_priv);
    BIO_free(out);

    return ret;
}

#define MAKE_SERIALIZER_FUNCTIONS(alg, type) \
    const OSSL_DISPATCH alg##_priv_##type##_serializer_functions[] = { \
        { OSSL_FUNC_SERIALIZER_NEWCTX, (void (*)(void))alg##_priv_newctx }, \
        { OSSL_FUNC_SERIALIZER_FREECTX, (void (*)(void))ecx_priv_freectx }, \
        { OSSL_FUNC_SERIALIZER_SET_CTX_PARAMS, \
          (void (*)(void))ecx_priv_set_ctx_params }, \
        { OSSL_FUNC_SERIALIZER_SETTABLE_CTX_PARAMS, \
          (void (*)(void))ecx_priv_settable_ctx_params }, \
        { OSSL_FUNC_SERIALIZER_SERIALIZE_DATA, \
          (void (*)(void))ecx_priv_##type##_data }, \
        { OSSL_FUNC_SERIALIZER_SERIALIZE_OBJECT, \
          (void (*)(void))ecx_priv_##type }, \
        { 0, NULL } \
    };

#define MAKE_SERIALIZER_FUNCTIONS_GROUP(alg) \
    MAKE_SERIALIZER_FUNCTIONS(alg, der) \
    MAKE_SERIALIZER_FUNCTIONS(alg, pem) \
    const OSSL_DISPATCH alg##_priv_print_serializer_functions[] = { \
        { OSSL_FUNC_SERIALIZER_NEWCTX, (void (*)(void))alg##_priv_newctx }, \
        { OSSL_FUNC_SERIALIZER_FREECTX, (void (*)(void))ecx_priv_freectx }, \
        { OSSL_FUNC_SERIALIZER_SERIALIZE_OBJECT, \
          (void (*)(void))ecx_priv_print }, \
        { OSSL_FUNC_SERIALIZER_SERIALIZE_DATA, \
          (void (*)(void))ecx_priv_print_data }, \
        { 0, NULL } \
    };

MAKE_SERIALIZER_FUNCTIONS_GROUP(x25519)
MAKE_SERIALIZER_FUNCTIONS_GROUP(x448)
MAKE_SERIALIZER_FUNCTIONS_GROUP(ed25519)
MAKE_SERIALIZER_FUNCTIONS_GROUP(ed448)
Commit	Line	Data
8efc4a9c MC	1	/*
	2	* Copyright 2020 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/err.h>
	13	#include <openssl/pem.h>
	14	#include <openssl/types.h>
	15	#include <openssl/params.h>
244bc297	16	#include "crypto/ecx.h"
8efc4a9c MC	17	#include "prov/bio.h"
8efc4a9c MC	18	#include "prov/implementations.h"
d40b42ab	19	#include "prov/provider_ctx.h"
8efc4a9c MC	20	#include "serializer_local.h"
	21
	22	static OSSL_OP_serializer_newctx_fn x25519_priv_newctx;
	23	static OSSL_OP_serializer_newctx_fn x448_priv_newctx;
244bc297 MC	24	static OSSL_OP_serializer_newctx_fn ed25519_priv_newctx;
244bc297 MC	25	static OSSL_OP_serializer_newctx_fn ed448_priv_newctx;
8efc4a9c MC	26	static OSSL_OP_serializer_freectx_fn ecx_priv_freectx;
	27	static OSSL_OP_serializer_set_ctx_params_fn ecx_priv_set_ctx_params;
	28	static OSSL_OP_serializer_settable_ctx_params_fn ecx_priv_settable_ctx_params;
	29	static OSSL_OP_serializer_serialize_data_fn ecx_priv_der_data;
	30	static OSSL_OP_serializer_serialize_object_fn ecx_priv_der;
	31	static OSSL_OP_serializer_serialize_data_fn ecx_priv_pem_data;
	32	static OSSL_OP_serializer_serialize_object_fn ecx_priv_pem;
	33
	34	static OSSL_OP_serializer_serialize_data_fn ecx_priv_print_data;
	35	static OSSL_OP_serializer_serialize_object_fn ecx_priv_print;
	36
	37	/*
	38	* Context used for private key serialization.
	39	*/
	40	struct ecx_priv_ctx_st {
	41	void *provctx;
	42
	43	struct pkcs8_encrypt_ctx_st sc;
	44	ECX_KEY_TYPE type;
	45	};
	46
	47	/* Private key : context */
	48	static void ecx_priv_newctx(void provctx, ECX_KEY_TYPE type)
	49	{
	50	struct ecx_priv_ctx_st ctx = OPENSSL_zalloc(sizeof(ctx));
	51
	52	if (ctx != NULL) {
	53	ctx->provctx = provctx;
	54
	55	/* -1 is the "whatever" indicator, i.e. the PKCS8 library default PBE */
	56	ctx->sc.pbe_nid = -1;
	57	ctx->type = type;
	58	}
	59	return ctx;
	60	}
	61
	62	static void x25519_priv_newctx(void provctx)
	63	{
	64	return ecx_priv_newctx(provctx, ECX_KEY_TYPE_X25519);
	65	}
	66
	67	static void x448_priv_newctx(void provctx)
	68	{
	69	return ecx_priv_newctx(provctx, ECX_KEY_TYPE_X448);
	70	}
	71
244bc297 MC	72	static void ed25519_priv_newctx(void provctx)
	73	{
	74	return ecx_priv_newctx(provctx, ECX_KEY_TYPE_ED25519);
	75	}
	76
	77	static void ed448_priv_newctx(void provctx)
	78	{
	79	return ecx_priv_newctx(provctx, ECX_KEY_TYPE_ED448);
	80	}
	81
8efc4a9c MC	82	static void ecx_priv_freectx(void *vctx)
	83	{
	84	struct ecx_priv_ctx_st *ctx = vctx;
	85
	86	EVP_CIPHER_free(ctx->sc.cipher);
	87	OPENSSL_free(ctx->sc.cipher_pass);
	88	OPENSSL_free(ctx);
	89	}
	90
	91	static const OSSL_PARAM *ecx_priv_settable_ctx_params(void)
	92	{
	93	static const OSSL_PARAM settables[] = {
	94	OSSL_PARAM_utf8_string(OSSL_SERIALIZER_PARAM_CIPHER, NULL, 0),
	95	OSSL_PARAM_octet_string(OSSL_SERIALIZER_PARAM_PASS, NULL, 0),
	96	OSSL_PARAM_END,
	97	};
	98
	99	return settables;
	100	}
	101
	102	static int ecx_priv_set_ctx_params(void *vctx, const OSSL_PARAM params[])
	103	{
	104	struct ecx_priv_ctx_st *ctx = vctx;
	105	const OSSL_PARAM *p;
	106
	107	p = OSSL_PARAM_locate_const(params, OSSL_SERIALIZER_PARAM_CIPHER);
	108	if (p != NULL) {
	109	const OSSL_PARAM *propsp =
	110	OSSL_PARAM_locate_const(params, OSSL_SERIALIZER_PARAM_PROPERTIES);
	111	const char *props;
	112
	113	if (p->data_type != OSSL_PARAM_UTF8_STRING)
	114	return 0;
	115	if (propsp != NULL && propsp->data_type != OSSL_PARAM_UTF8_STRING)
	116	return 0;
	117	props = (propsp != NULL ? propsp->data : NULL);
	118
	119	EVP_CIPHER_free(ctx->sc.cipher);
	120	ctx->sc.cipher_intent = p->data != NULL;
	121	if (p->data != NULL
	122	&& ((ctx->sc.cipher = EVP_CIPHER_fetch(NULL, p->data, props))
	123	== NULL))
	124	return 0;
	125	}
	126	p = OSSL_PARAM_locate_const(params, OSSL_SERIALIZER_PARAM_PASS);
	127	if (p != NULL) {
	128	OPENSSL_free(ctx->sc.cipher_pass);
	129	ctx->sc.cipher_pass = NULL;
	130	if (!OSSL_PARAM_get_octet_string(p, &ctx->sc.cipher_pass, 0,
	131	&ctx->sc.cipher_pass_length))
	132	return 0;
	133	}
	134	return 1;
	135	}
	136
	137	/* Private key : DER */
d40b42ab MC	138	static int ecx_priv_der_data(void *vctx, const OSSL_PARAM params[],
d40b42ab MC	139	OSSL_CORE_BIO *out,
8efc4a9c MC	140	OSSL_PASSPHRASE_CALLBACK cb, void cbarg)
	141	{
	142	struct ecx_priv_ctx_st *ctx = vctx;
	143	OSSL_OP_keymgmt_new_fn *ecx_new;
	144	OSSL_OP_keymgmt_free_fn *ecx_free;
	145	OSSL_OP_keymgmt_import_fn *ecx_import;
	146	int ok = 0;
	147
	148	ecx_get_new_free_import(ctx->type, &ecx_new, &ecx_free, &ecx_import);
	149
	150	if (ecx_import != NULL) {
	151	ECX_KEY *ecxkey;
	152
	153	if ((ecxkey = ecx_new(ctx->provctx)) != NULL
	154	&& ecx_import(ecxkey, OSSL_KEYMGMT_SELECT_KEYPAIR, params)
	155	&& ecx_priv_der(ctx, ecxkey, out, cb, cbarg))
	156	ok = 1;
	157	ecx_free(ecxkey);
	158	}
	159	return ok;
	160	}
	161
d40b42ab	162	static int ecx_priv_der(void vctx, void vecxkey, OSSL_CORE_BIO *cout,
8efc4a9c MC	163	OSSL_PASSPHRASE_CALLBACK cb, void cbarg)
	164	{
	165	struct ecx_priv_ctx_st *ctx = vctx;
	166	ECX_KEY *ecxkey = vecxkey;
	167	int ret;
244bc297	168	int nid = KEYTYPE2NID(ctx->type);
d40b42ab MC	169	BIO *out = bio_new_from_core_bio(ctx->provctx, cout);
	170
	171	if (out == NULL)
	172	return 0;
8efc4a9c MC	173
	174	ctx->sc.cb = cb;
	175	ctx->sc.cbarg = cbarg;
	176
	177	ret = ossl_prov_write_priv_der_from_obj(out, ecxkey,
244bc297	178	nid,
8efc4a9c MC	179	NULL,
	180	ossl_prov_ecx_priv_to_der,
	181	&ctx->sc);
d40b42ab	182	BIO_free(out);
8efc4a9c MC	183
	184	return ret;
	185	}
	186
	187	/* Private key : PEM */
d40b42ab MC	188	static int ecx_priv_pem_data(void *vctx, const OSSL_PARAM params[],
d40b42ab MC	189	OSSL_CORE_BIO *out,
8efc4a9c MC	190	OSSL_PASSPHRASE_CALLBACK cb, void cbarg)
	191	{
	192	struct ecx_priv_ctx_st *ctx = vctx;
	193	OSSL_OP_keymgmt_new_fn *ecx_new;
	194	OSSL_OP_keymgmt_free_fn *ecx_free;
	195	OSSL_OP_keymgmt_import_fn *ecx_import;
	196	int ok = 0;
	197
	198	ecx_get_new_free_import(ctx->type, &ecx_new, &ecx_free, &ecx_import);
	199
	200	if (ecx_import != NULL) {
	201	ECX_KEY *ecxkey;
	202
	203	if ((ecxkey = ecx_new(ctx->provctx)) != NULL
	204	&& ecx_import(ecxkey, OSSL_KEYMGMT_SELECT_KEYPAIR, params)
	205	&& ecx_priv_pem(ctx->provctx, ecxkey, out, cb, cbarg))
	206	ok = 1;
	207	ecx_free(ecxkey);
	208	}
	209	return ok;
	210	}
	211
d40b42ab	212	static int ecx_priv_pem(void vctx, void ecxkey, OSSL_CORE_BIO *cout,
8efc4a9c MC	213	OSSL_PASSPHRASE_CALLBACK cb, void cbarg)
	214	{
	215	struct ecx_priv_ctx_st *ctx = vctx;
	216	int ret;
244bc297	217	int nid = KEYTYPE2NID(ctx->type);
d40b42ab MC	218	BIO *out = bio_new_from_core_bio(ctx->provctx, cout);
	219
	220	if (out == NULL)
	221	return 0;
8efc4a9c MC	222
	223	ctx->sc.cb = cb;
	224	ctx->sc.cbarg = cbarg;
	225
	226	ret = ossl_prov_write_priv_pem_from_obj(out, ecxkey,
244bc297	227	nid,
8efc4a9c MC	228	NULL,
	229	ossl_prov_ecx_priv_to_der,
	230	&ctx->sc);
d40b42ab	231	BIO_free(out);
8efc4a9c MC	232
	233	return ret;
	234	}
	235
d40b42ab MC	236	static int ecx_priv_print_data(void *vctx, const OSSL_PARAM params[],
d40b42ab MC	237	OSSL_CORE_BIO *out,
8efc4a9c MC	238	OSSL_PASSPHRASE_CALLBACK cb, void cbarg)
	239	{
	240	struct ecx_priv_ctx_st *ctx = vctx;
	241	OSSL_OP_keymgmt_new_fn *ecx_new;
	242	OSSL_OP_keymgmt_free_fn *ecx_free;
	243	OSSL_OP_keymgmt_import_fn *ecx_import;
	244	int ok = 0;
	245
	246	ecx_get_new_free_import(ctx->type, &ecx_new, &ecx_free, &ecx_import);
	247
	248	if (ecx_import != NULL) {
	249	ECX_KEY *ecxkey;
	250
	251	if ((ecxkey = ecx_new(ctx->provctx)) != NULL
	252	&& ecx_import(ecxkey, OSSL_KEYMGMT_SELECT_KEYPAIR, params)
	253	&& ecx_priv_print(ctx, ecxkey, out, cb, cbarg))
	254	ok = 1;
	255	ecx_free(ecxkey);
	256	}
	257	return ok;
	258	}
	259
d40b42ab	260	static int ecx_priv_print(void vctx, void ecxkey, OSSL_CORE_BIO *cout,
8efc4a9c MC	261	OSSL_PASSPHRASE_CALLBACK cb, void cbarg)
8efc4a9c MC	262	{
d40b42ab MC	263	struct ecx_priv_ctx_st *ctx = vctx;
	264	BIO *out = bio_new_from_core_bio(ctx->provctx, cout);
	265	int ret;
	266
	267	if (out == NULL)
	268	return 0;
	269
	270	ret = ossl_prov_print_ecx(out, ecxkey, ecx_print_priv);
	271	BIO_free(out);
	272
	273	return ret;
8efc4a9c MC	274	}
	275
	276	#define MAKE_SERIALIZER_FUNCTIONS(alg, type) \
	277	const OSSL_DISPATCH alg##_priv_##type##_serializer_functions[] = { \
	278	{ OSSL_FUNC_SERIALIZER_NEWCTX, (void (*)(void))alg##_priv_newctx }, \
	279	{ OSSL_FUNC_SERIALIZER_FREECTX, (void (*)(void))ecx_priv_freectx }, \
	280	{ OSSL_FUNC_SERIALIZER_SET_CTX_PARAMS, \
	281	(void (*)(void))ecx_priv_set_ctx_params }, \
	282	{ OSSL_FUNC_SERIALIZER_SETTABLE_CTX_PARAMS, \
	283	(void (*)(void))ecx_priv_settable_ctx_params }, \
	284	{ OSSL_FUNC_SERIALIZER_SERIALIZE_DATA, \
	285	(void (*)(void))ecx_priv_##type##_data }, \
	286	{ OSSL_FUNC_SERIALIZER_SERIALIZE_OBJECT, \
	287	(void (*)(void))ecx_priv_##type }, \
	288	{ 0, NULL } \
	289	};
	290
	291	#define MAKE_SERIALIZER_FUNCTIONS_GROUP(alg) \
	292	MAKE_SERIALIZER_FUNCTIONS(alg, der) \
	293	MAKE_SERIALIZER_FUNCTIONS(alg, pem) \
	294	const OSSL_DISPATCH alg##_priv_print_serializer_functions[] = { \
	295	{ OSSL_FUNC_SERIALIZER_NEWCTX, (void (*)(void))alg##_priv_newctx }, \
	296	{ OSSL_FUNC_SERIALIZER_FREECTX, (void (*)(void))ecx_priv_freectx }, \
	297	{ OSSL_FUNC_SERIALIZER_SERIALIZE_OBJECT, \
	298	(void (*)(void))ecx_priv_print }, \
	299	{ OSSL_FUNC_SERIALIZER_SERIALIZE_DATA, \
	300	(void (*)(void))ecx_priv_print_data }, \
	301	{ 0, NULL } \
	302	};
	303
	304	MAKE_SERIALIZER_FUNCTIONS_GROUP(x25519)
	305	MAKE_SERIALIZER_FUNCTIONS_GROUP(x448)
244bc297 MC	306	MAKE_SERIALIZER_FUNCTIONS_GROUP(ed25519)
244bc297 MC	307	MAKE_SERIALIZER_FUNCTIONS_GROUP(ed448)