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- /*
- * 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_dispatch.h>
- #include <openssl/pem.h>
- #include <openssl/ec.h>
- #include <openssl/types.h>
- #include <openssl/params.h>
- #include "prov/bio.h"
- #include "prov/implementations.h"
- #include "prov/providercommonerr.h"
- #include "prov/provider_ctx.h"
- #include "encoder_local.h"
- static OSSL_FUNC_encoder_newctx_fn ec_param_newctx;
- static OSSL_FUNC_encoder_freectx_fn ec_param_freectx;
- static OSSL_FUNC_encoder_encode_data_fn ec_param_der_data;
- static OSSL_FUNC_encoder_encode_object_fn ec_param_der;
- static OSSL_FUNC_encoder_encode_data_fn ec_param_pem_data;
- static OSSL_FUNC_encoder_encode_object_fn ec_param_pem;
- static OSSL_FUNC_encoder_encode_data_fn ec_param_print_data;
- static OSSL_FUNC_encoder_encode_object_fn ec_param_print;
- /* There is no specific implementation context, so use the provider context */
- static void *ec_param_newctx(void *provctx)
- {
- return provctx;
- }
- static void ec_param_freectx(void *vctx)
- {
- }
- /* Public key : DER */
- static int ec_param_der_data(void *vctx, const OSSL_PARAM params[],
- OSSL_CORE_BIO *out,
- OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
- {
- OSSL_FUNC_keymgmt_new_fn *ec_new;
- OSSL_FUNC_keymgmt_free_fn *ec_free;
- OSSL_FUNC_keymgmt_import_fn *ec_import;
- int ok = 0;
- ec_get_new_free_import(&ec_new, &ec_free, &ec_import);
- if (ec_import != NULL) {
- EC_KEY *eckey;
- /* vctx == provctx */
- if ((eckey = ec_new(vctx)) != NULL
- && ec_import(eckey, OSSL_KEYMGMT_SELECT_ALL_PARAMETERS, params)
- && ec_param_der(vctx, eckey, out, cb, cbarg))
- ok = 1;
- ec_free(eckey);
- }
- return ok;
- }
- static int ec_param_der(void *vctx, void *eckey, OSSL_CORE_BIO *cout,
- OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
- {
- BIO *out = bio_new_from_core_bio(vctx, cout);
- int ret;
- if (out == NULL)
- return 0;
- ret = i2d_ECPKParameters_bio(out, EC_KEY_get0_group(eckey));
- BIO_free(out);
- return ret;
- }
- /* Public key : PEM */
- static int ec_param_pem_data(void *vctx, const OSSL_PARAM params[],
- OSSL_CORE_BIO *out,
- OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
- {
- OSSL_FUNC_keymgmt_new_fn *ec_new;
- OSSL_FUNC_keymgmt_free_fn *ec_free;
- OSSL_FUNC_keymgmt_import_fn *ec_import;
- int ok = 0;
- ec_get_new_free_import(&ec_new, &ec_free, &ec_import);
- if (ec_import != NULL) {
- EC_KEY *eckey;
- /* vctx == provctx */
- if ((eckey = ec_new(vctx)) != NULL
- && ec_import(eckey, OSSL_KEYMGMT_SELECT_ALL_PARAMETERS, params)
- && ec_param_pem(vctx, eckey, out, cb, cbarg))
- ok = 1;
- ec_free(eckey);
- }
- return ok;
- }
- static int ec_param_pem(void *vctx, void *eckey, OSSL_CORE_BIO *cout,
- OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
- {
- BIO *out = bio_new_from_core_bio(vctx, cout);
- int ret;
- if (out == NULL)
- return 0;
- ret = PEM_write_bio_ECPKParameters(out, EC_KEY_get0_group(eckey));
- BIO_free(out);
- return ret;
- }
- static int ec_param_print_data(void *vctx, const OSSL_PARAM params[],
- OSSL_CORE_BIO *out,
- OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
- {
- OSSL_FUNC_keymgmt_new_fn *ec_new;
- OSSL_FUNC_keymgmt_free_fn *ec_free;
- OSSL_FUNC_keymgmt_import_fn *ec_import;
- int ok = 0;
- ec_get_new_free_import(&ec_new, &ec_free, &ec_import);
- if (ec_import != NULL) {
- EC_KEY *eckey;
- /* vctx == provctx */
- if ((eckey = ec_new(vctx)) != NULL
- && ec_import(eckey, OSSL_KEYMGMT_SELECT_ALL_PARAMETERS, params)
- && ec_param_print(vctx, eckey, out, cb, cbarg))
- ok = 1;
- ec_free(eckey);
- }
- return ok;
- }
- static int ec_param_print(void *vctx, void *eckey, OSSL_CORE_BIO *cout,
- OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
- {
- BIO *out = bio_new_from_core_bio(vctx, cout);
- int ret;
- if (out == NULL)
- return 0;
- ret = ossl_prov_print_eckey(out, eckey, ec_print_params);
- BIO_free(out);
- return ret;
- }
- const OSSL_DISPATCH ec_param_der_encoder_functions[] = {
- { OSSL_FUNC_ENCODER_NEWCTX, (void (*)(void))ec_param_newctx },
- { OSSL_FUNC_ENCODER_FREECTX, (void (*)(void))ec_param_freectx },
- { OSSL_FUNC_ENCODER_ENCODE_DATA, (void (*)(void))ec_param_der_data },
- { OSSL_FUNC_ENCODER_ENCODE_OBJECT, (void (*)(void))ec_param_der },
- { 0, NULL }
- };
- const OSSL_DISPATCH ec_param_pem_encoder_functions[] = {
- { OSSL_FUNC_ENCODER_NEWCTX, (void (*)(void))ec_param_newctx },
- { OSSL_FUNC_ENCODER_FREECTX, (void (*)(void))ec_param_freectx },
- { OSSL_FUNC_ENCODER_ENCODE_DATA, (void (*)(void))ec_param_pem_data },
- { OSSL_FUNC_ENCODER_ENCODE_OBJECT, (void (*)(void))ec_param_pem },
- { 0, NULL }
- };
- const OSSL_DISPATCH ec_param_text_encoder_functions[] = {
- { OSSL_FUNC_ENCODER_NEWCTX, (void (*)(void))ec_param_newctx },
- { OSSL_FUNC_ENCODER_FREECTX, (void (*)(void))ec_param_freectx },
- { OSSL_FUNC_ENCODER_ENCODE_OBJECT, (void (*)(void))ec_param_print },
- { OSSL_FUNC_ENCODER_ENCODE_DATA,
- (void (*)(void))ec_param_print_data },
- { 0, NULL }
- };
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