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/*
* 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
*/
/*
* DH low level APIs are deprecated for public use, but still ok for
* internal use.
*/
#include "internal/deprecated.h"
#include <openssl/core_numbers.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 "serializer_local.h"
static OSSL_OP_serializer_newctx_fn dh_pub_newctx;
static OSSL_OP_serializer_freectx_fn dh_pub_freectx;
static OSSL_OP_serializer_serialize_data_fn dh_pub_der_data;
static OSSL_OP_serializer_serialize_object_fn dh_pub_der;
static OSSL_OP_serializer_serialize_data_fn dh_pub_pem_data;
static OSSL_OP_serializer_serialize_object_fn dh_pub_pem;
static OSSL_OP_serializer_serialize_data_fn dh_pub_print_data;
static OSSL_OP_serializer_serialize_object_fn dh_pub_print;
/* 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[], BIO *out,
OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
{
OSSL_OP_keymgmt_new_fn *dh_new = ossl_prov_get_keymgmt_dh_new();
OSSL_OP_keymgmt_free_fn *dh_free = ossl_prov_get_keymgmt_dh_free();
OSSL_OP_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, OSSL_KEYMGMT_SELECT_KEYPAIR, 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, BIO *out,
OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
{
return ossl_prov_write_pub_der_from_obj(out, dh, EVP_PKEY_DH,
ossl_prov_prepare_dh_params,
ossl_prov_dh_pub_to_der);
}
/* Public key : PEM */
static int dh_pub_pem_data(void *ctx, const OSSL_PARAM params[], BIO *out,
OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
{
OSSL_OP_keymgmt_new_fn *dh_new = ossl_prov_get_keymgmt_dh_new();
OSSL_OP_keymgmt_free_fn *dh_free = ossl_prov_get_keymgmt_dh_free();
OSSL_OP_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, OSSL_KEYMGMT_SELECT_KEYPAIR, 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, BIO *out,
OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
{
return ossl_prov_write_pub_pem_from_obj(out, dh, EVP_PKEY_DH,
ossl_prov_prepare_dh_params,
ossl_prov_dh_pub_to_der);
}
static int dh_pub_print_data(void *ctx, const OSSL_PARAM params[], BIO *out,
OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
{
OSSL_OP_keymgmt_new_fn *dh_new = ossl_prov_get_keymgmt_dh_new();
OSSL_OP_keymgmt_free_fn *dh_free = ossl_prov_get_keymgmt_dh_free();
OSSL_OP_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, OSSL_KEYMGMT_SELECT_KEYPAIR, 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, BIO *out,
OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
{
return ossl_prov_print_dh(out, dh, dh_print_pub);
}
const OSSL_DISPATCH dh_pub_der_serializer_functions[] = {
{ OSSL_FUNC_SERIALIZER_NEWCTX, (void (*)(void))dh_pub_newctx },
{ OSSL_FUNC_SERIALIZER_FREECTX, (void (*)(void))dh_pub_freectx },
{ OSSL_FUNC_SERIALIZER_SERIALIZE_DATA, (void (*)(void))dh_pub_der_data },
{ OSSL_FUNC_SERIALIZER_SERIALIZE_OBJECT, (void (*)(void))dh_pub_der },
{ 0, NULL }
};
const OSSL_DISPATCH dh_pub_pem_serializer_functions[] = {
{ OSSL_FUNC_SERIALIZER_NEWCTX, (void (*)(void))dh_pub_newctx },
{ OSSL_FUNC_SERIALIZER_FREECTX, (void (*)(void))dh_pub_freectx },
{ OSSL_FUNC_SERIALIZER_SERIALIZE_DATA, (void (*)(void))dh_pub_pem_data },
{ OSSL_FUNC_SERIALIZER_SERIALIZE_OBJECT, (void (*)(void))dh_pub_pem },
{ 0, NULL }
};
const OSSL_DISPATCH dh_pub_text_serializer_functions[] = {
{ OSSL_FUNC_SERIALIZER_NEWCTX, (void (*)(void))dh_pub_newctx },
{ OSSL_FUNC_SERIALIZER_FREECTX, (void (*)(void))dh_pub_freectx },
{ OSSL_FUNC_SERIALIZER_SERIALIZE_OBJECT, (void (*)(void))dh_pub_print },
{ OSSL_FUNC_SERIALIZER_SERIALIZE_DATA,
(void (*)(void))dh_pub_print_data },
{ 0, NULL }
};
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