[thirdparty/openssl.git] / providers / implementations / encode_decode / encoder_dh_pub.c

/*
 * Copyright 2019-2020 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
 */

/*
 * DH low level APIs are deprecated for public use, but still ok for
 * internal use.
 */
#include "internal/deprecated.h"

#include <openssl/core_dispatch.h>
#include <openssl/err.h>
#include <openssl/pem.h>
#include <openssl/dh.h>
#include <openssl/types.h>
#include <openssl/params.h>
#include "prov/bio.h"
#include "prov/implementations.h"
#include "prov/provider_ctx.h"
#include "encoder_local.h"

static OSSL_FUNC_encoder_newctx_fn dh_pub_newctx;
static OSSL_FUNC_encoder_freectx_fn dh_pub_freectx;
static OSSL_FUNC_encoder_encode_data_fn dh_pub_der_data;
static OSSL_FUNC_encoder_encode_object_fn dh_pub_der;
static OSSL_FUNC_encoder_encode_data_fn dh_pub_pem_data;
static OSSL_FUNC_encoder_encode_object_fn dh_pub_pem;

static OSSL_FUNC_encoder_encode_data_fn dh_pub_print_data;
static OSSL_FUNC_encoder_encode_object_fn dh_pub_print;

#define DH_SELECT_PUBLIC_IMPORTABLE                                            \
    (OSSL_KEYMGMT_SELECT_PUBLIC_KEY | OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS)

/* Public key : context */

/*
 * There's no specific implementation context, so we use the provider context
 */
static void *dh_pub_newctx(void *provctx)
{
    return provctx;
}

static void dh_pub_freectx(void *ctx)
{
}

/* Public key : DER */
static int dh_pub_der_data(void *ctx, const OSSL_PARAM params[],
                           OSSL_CORE_BIO *out,
                           OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
{
    OSSL_FUNC_keymgmt_new_fn *dh_new = ossl_prov_get_keymgmt_dh_new();
    OSSL_FUNC_keymgmt_free_fn *dh_free = ossl_prov_get_keymgmt_dh_free();
    OSSL_FUNC_keymgmt_import_fn *dh_import = ossl_prov_get_keymgmt_dh_import();
    int ok = 0;

    if (dh_import != NULL) {
        DH *dh;

        /* ctx == provctx */
        if ((dh = dh_new(ctx)) != NULL
            && dh_import(dh, DH_SELECT_PUBLIC_IMPORTABLE, params)
            && dh_pub_der(ctx, dh, out, cb, cbarg))
            ok = 1;
        dh_free(dh);
    }
    return ok;
}

static int dh_pub_der(void *ctx, void *dh, OSSL_CORE_BIO *cout,
                      OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
{
    BIO *out = bio_new_from_core_bio(ctx, cout);
    int ret;

    if (out == NULL)
        return 0;

    ret = ossl_prov_write_pub_der_from_obj(out, dh,
                                           ossl_prov_dh_type_to_evp(dh),
                                           ossl_prov_prepare_dh_params,
                                           ossl_prov_dh_pub_to_der);
    BIO_free(out);

    return ret;
}

/* Public key : PEM */
static int dh_pub_pem_data(void *ctx, const OSSL_PARAM params[],
                           OSSL_CORE_BIO *out,
                           OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
{
    OSSL_FUNC_keymgmt_new_fn *dh_new = ossl_prov_get_keymgmt_dh_new();
    OSSL_FUNC_keymgmt_free_fn *dh_free = ossl_prov_get_keymgmt_dh_free();
    OSSL_FUNC_keymgmt_import_fn *dh_import = ossl_prov_get_keymgmt_dh_import();
    int ok = 0;

    if (dh_import != NULL) {
        DH *dh;

        /* ctx == provctx */
        if ((dh = dh_new(ctx)) != NULL
            && dh_import(dh, DH_SELECT_PUBLIC_IMPORTABLE, params)
            && dh_pub_pem(ctx, dh, out, cb, cbarg))
            ok = 1;
        dh_free(dh);
    }
    return ok;
}

static int dh_pub_pem(void *ctx, void *dh, OSSL_CORE_BIO *cout,
                      OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
{
    BIO *out = bio_new_from_core_bio(ctx, cout);
    int ret;

    if (out == NULL)
        return 0;

    ret = ossl_prov_write_pub_pem_from_obj(out, dh,
                                           ossl_prov_dh_type_to_evp(dh),
                                           ossl_prov_prepare_dh_params,
                                           ossl_prov_dh_pub_to_der);
    BIO_free(out);

    return ret;
}

static int dh_pub_print_data(void *ctx, const OSSL_PARAM params[],
                             OSSL_CORE_BIO *out,
                             OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
{
    OSSL_FUNC_keymgmt_new_fn *dh_new = ossl_prov_get_keymgmt_dh_new();
    OSSL_FUNC_keymgmt_free_fn *dh_free = ossl_prov_get_keymgmt_dh_free();
    OSSL_FUNC_keymgmt_import_fn *dh_import = ossl_prov_get_keymgmt_dh_import();
    int ok = 0;

    if (dh_import != NULL) {
        DH *dh;

        /* ctx == provctx */
        if ((dh = dh_new(ctx)) != NULL
            && dh_import(dh, DH_SELECT_PUBLIC_IMPORTABLE, params)
            && dh_pub_print(ctx, dh, out, cb, cbarg))
            ok = 1;
        dh_free(dh);
    }
    return ok;
}

static int dh_pub_print(void *ctx, void *dh, OSSL_CORE_BIO *cout,
                        OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
{
    BIO *out = bio_new_from_core_bio(ctx, cout);
    int ret;

    if (out == NULL)
        return 0;

    ret = ossl_prov_print_dh(out, dh, dh_print_pub);
    BIO_free(out);

    return ret;
}

const OSSL_DISPATCH dh_pub_der_encoder_functions[] = {
    { OSSL_FUNC_ENCODER_NEWCTX, (void (*)(void))dh_pub_newctx },
    { OSSL_FUNC_ENCODER_FREECTX, (void (*)(void))dh_pub_freectx },
    { OSSL_FUNC_ENCODER_ENCODE_DATA, (void (*)(void))dh_pub_der_data },
    { OSSL_FUNC_ENCODER_ENCODE_OBJECT, (void (*)(void))dh_pub_der },
    { 0, NULL }
};

const OSSL_DISPATCH dh_pub_pem_encoder_functions[] = {
    { OSSL_FUNC_ENCODER_NEWCTX, (void (*)(void))dh_pub_newctx },
    { OSSL_FUNC_ENCODER_FREECTX, (void (*)(void))dh_pub_freectx },
    { OSSL_FUNC_ENCODER_ENCODE_DATA, (void (*)(void))dh_pub_pem_data },
    { OSSL_FUNC_ENCODER_ENCODE_OBJECT, (void (*)(void))dh_pub_pem },
    { 0, NULL }
};

const OSSL_DISPATCH dh_pub_text_encoder_functions[] = {
    { OSSL_FUNC_ENCODER_NEWCTX, (void (*)(void))dh_pub_newctx },
    { OSSL_FUNC_ENCODER_FREECTX, (void (*)(void))dh_pub_freectx },
    { OSSL_FUNC_ENCODER_ENCODE_OBJECT, (void (*)(void))dh_pub_print },
    { OSSL_FUNC_ENCODER_ENCODE_DATA,
      (void (*)(void))dh_pub_print_data },
    { 0, NULL }
};
Commit	Line	Data
045e51cb	1	/*
33388b44	2	* Copyright 2019-2020 The OpenSSL Project Authors. All Rights Reserved.
045e51cb RL	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
ada66e78 P	10	/*
	11	* DH low level APIs are deprecated for public use, but still ok for
	12	* internal use.
	13	*/
	14	#include "internal/deprecated.h"
	15
23c48d94	16	#include <openssl/core_dispatch.h>
045e51cb RL	17	#include <openssl/err.h>
	18	#include <openssl/pem.h>
	19	#include <openssl/dh.h>
	20	#include <openssl/types.h>
	21	#include <openssl/params.h>
	22	#include "prov/bio.h"
	23	#include "prov/implementations.h"
d40b42ab	24	#include "prov/provider_ctx.h"
ece9304c	25	#include "encoder_local.h"
045e51cb	26
ece9304c RL	27	static OSSL_FUNC_encoder_newctx_fn dh_pub_newctx;
	28	static OSSL_FUNC_encoder_freectx_fn dh_pub_freectx;
	29	static OSSL_FUNC_encoder_encode_data_fn dh_pub_der_data;
	30	static OSSL_FUNC_encoder_encode_object_fn dh_pub_der;
	31	static OSSL_FUNC_encoder_encode_data_fn dh_pub_pem_data;
	32	static OSSL_FUNC_encoder_encode_object_fn dh_pub_pem;
045e51cb	33
ece9304c RL	34	static OSSL_FUNC_encoder_encode_data_fn dh_pub_print_data;
ece9304c RL	35	static OSSL_FUNC_encoder_encode_object_fn dh_pub_print;
045e51cb	36
3fab5663 SL	37	#define DH_SELECT_PUBLIC_IMPORTABLE \
	38	(OSSL_KEYMGMT_SELECT_PUBLIC_KEY \| OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS)
	39
045e51cb RL	40	/* Public key : context */
	41
	42	/*
	43	* There's no specific implementation context, so we use the provider context
	44	*/
	45	static void dh_pub_newctx(void provctx)
	46	{
	47	return provctx;
	48	}
	49
	50	static void dh_pub_freectx(void *ctx)
	51	{
	52	}
	53
	54	/* Public key : DER */
d40b42ab	55	static int dh_pub_der_data(void *ctx, const OSSL_PARAM params[],
ece9304c RL	56	OSSL_CORE_BIO *out,
ece9304c RL	57	OSSL_PASSPHRASE_CALLBACK cb, void cbarg)
045e51cb	58	{
363b1e5d DMSP	59	OSSL_FUNC_keymgmt_new_fn *dh_new = ossl_prov_get_keymgmt_dh_new();
	60	OSSL_FUNC_keymgmt_free_fn *dh_free = ossl_prov_get_keymgmt_dh_free();
	61	OSSL_FUNC_keymgmt_import_fn *dh_import = ossl_prov_get_keymgmt_dh_import();
045e51cb RL	62	int ok = 0;
045e51cb RL	63
32b0645c RL	64	if (dh_import != NULL) {
32b0645c RL	65	DH *dh;
045e51cb	66
32b0645c RL	67	/* ctx == provctx */
32b0645c RL	68	if ((dh = dh_new(ctx)) != NULL
3fab5663	69	&& dh_import(dh, DH_SELECT_PUBLIC_IMPORTABLE, params)
32b0645c RL	70	&& dh_pub_der(ctx, dh, out, cb, cbarg))
	71	ok = 1;
	72	dh_free(dh);
045e51cb RL	73	}
	74	return ok;
	75	}
	76
d40b42ab	77	static int dh_pub_der(void ctx, void dh, OSSL_CORE_BIO *cout,
ece9304c	78	OSSL_PASSPHRASE_CALLBACK cb, void cbarg)
045e51cb	79	{
d40b42ab MC	80	BIO *out = bio_new_from_core_bio(ctx, cout);
	81	int ret;
	82
	83	if (out == NULL)
	84	return 0;
	85
31d2daec SL	86	ret = ossl_prov_write_pub_der_from_obj(out, dh,
31d2daec SL	87	ossl_prov_dh_type_to_evp(dh),
d40b42ab MC	88	ossl_prov_prepare_dh_params,
	89	ossl_prov_dh_pub_to_der);
	90	BIO_free(out);
	91
	92	return ret;
045e51cb RL	93	}
	94
	95	/* Public key : PEM */
d40b42ab MC	96	static int dh_pub_pem_data(void *ctx, const OSSL_PARAM params[],
	97	OSSL_CORE_BIO *out,
	98	OSSL_PASSPHRASE_CALLBACK cb, void cbarg)
045e51cb	99	{
363b1e5d DMSP	100	OSSL_FUNC_keymgmt_new_fn *dh_new = ossl_prov_get_keymgmt_dh_new();
	101	OSSL_FUNC_keymgmt_free_fn *dh_free = ossl_prov_get_keymgmt_dh_free();
	102	OSSL_FUNC_keymgmt_import_fn *dh_import = ossl_prov_get_keymgmt_dh_import();
045e51cb RL	103	int ok = 0;
045e51cb RL	104
32b0645c RL	105	if (dh_import != NULL) {
32b0645c RL	106	DH *dh;
045e51cb	107
32b0645c RL	108	/* ctx == provctx */
32b0645c RL	109	if ((dh = dh_new(ctx)) != NULL
3fab5663	110	&& dh_import(dh, DH_SELECT_PUBLIC_IMPORTABLE, params)
32b0645c RL	111	&& dh_pub_pem(ctx, dh, out, cb, cbarg))
	112	ok = 1;
	113	dh_free(dh);
045e51cb RL	114	}
	115	return ok;
	116	}
	117
d40b42ab	118	static int dh_pub_pem(void ctx, void dh, OSSL_CORE_BIO *cout,
ece9304c	119	OSSL_PASSPHRASE_CALLBACK cb, void cbarg)
045e51cb	120	{
d40b42ab MC	121	BIO *out = bio_new_from_core_bio(ctx, cout);
	122	int ret;
	123
	124	if (out == NULL)
	125	return 0;
045e51cb	126
31d2daec SL	127	ret = ossl_prov_write_pub_pem_from_obj(out, dh,
31d2daec SL	128	ossl_prov_dh_type_to_evp(dh),
d40b42ab MC	129	ossl_prov_prepare_dh_params,
	130	ossl_prov_dh_pub_to_der);
	131	BIO_free(out);
	132
	133	return ret;
045e51cb RL	134	}
045e51cb RL	135
d40b42ab MC	136	static int dh_pub_print_data(void *ctx, const OSSL_PARAM params[],
	137	OSSL_CORE_BIO *out,
	138	OSSL_PASSPHRASE_CALLBACK cb, void cbarg)
045e51cb	139	{
363b1e5d DMSP	140	OSSL_FUNC_keymgmt_new_fn *dh_new = ossl_prov_get_keymgmt_dh_new();
	141	OSSL_FUNC_keymgmt_free_fn *dh_free = ossl_prov_get_keymgmt_dh_free();
	142	OSSL_FUNC_keymgmt_import_fn *dh_import = ossl_prov_get_keymgmt_dh_import();
045e51cb RL	143	int ok = 0;
045e51cb RL	144
32b0645c RL	145	if (dh_import != NULL) {
32b0645c RL	146	DH *dh;
045e51cb	147
32b0645c RL	148	/* ctx == provctx */
32b0645c RL	149	if ((dh = dh_new(ctx)) != NULL
3fab5663	150	&& dh_import(dh, DH_SELECT_PUBLIC_IMPORTABLE, params)
32b0645c RL	151	&& dh_pub_print(ctx, dh, out, cb, cbarg))
	152	ok = 1;
	153	dh_free(dh);
045e51cb RL	154	}
	155	return ok;
	156	}
	157
d40b42ab	158	static int dh_pub_print(void ctx, void dh, OSSL_CORE_BIO *cout,
ece9304c	159	OSSL_PASSPHRASE_CALLBACK cb, void cbarg)
045e51cb	160	{
d40b42ab MC	161	BIO *out = bio_new_from_core_bio(ctx, cout);
	162	int ret;
	163
	164	if (out == NULL)
	165	return 0;
	166
	167	ret = ossl_prov_print_dh(out, dh, dh_print_pub);
	168	BIO_free(out);
	169
	170	return ret;
045e51cb RL	171	}
045e51cb RL	172
ece9304c RL	173	const OSSL_DISPATCH dh_pub_der_encoder_functions[] = {
	174	{ OSSL_FUNC_ENCODER_NEWCTX, (void (*)(void))dh_pub_newctx },
	175	{ OSSL_FUNC_ENCODER_FREECTX, (void (*)(void))dh_pub_freectx },
	176	{ OSSL_FUNC_ENCODER_ENCODE_DATA, (void (*)(void))dh_pub_der_data },
	177	{ OSSL_FUNC_ENCODER_ENCODE_OBJECT, (void (*)(void))dh_pub_der },
045e51cb RL	178	{ 0, NULL }
	179	};
	180
ece9304c RL	181	const OSSL_DISPATCH dh_pub_pem_encoder_functions[] = {
	182	{ OSSL_FUNC_ENCODER_NEWCTX, (void (*)(void))dh_pub_newctx },
	183	{ OSSL_FUNC_ENCODER_FREECTX, (void (*)(void))dh_pub_freectx },
	184	{ OSSL_FUNC_ENCODER_ENCODE_DATA, (void (*)(void))dh_pub_pem_data },
	185	{ OSSL_FUNC_ENCODER_ENCODE_OBJECT, (void (*)(void))dh_pub_pem },
045e51cb RL	186	{ 0, NULL }
	187	};
	188
ece9304c RL	189	const OSSL_DISPATCH dh_pub_text_encoder_functions[] = {
	190	{ OSSL_FUNC_ENCODER_NEWCTX, (void (*)(void))dh_pub_newctx },
	191	{ OSSL_FUNC_ENCODER_FREECTX, (void (*)(void))dh_pub_freectx },
	192	{ OSSL_FUNC_ENCODER_ENCODE_OBJECT, (void (*)(void))dh_pub_print },
	193	{ OSSL_FUNC_ENCODER_ENCODE_DATA,
045e51cb RL	194	(void (*)(void))dh_pub_print_data },
	195	{ 0, NULL }
	196	};