providers/implementations/serializers/serializer_dh_param.c

   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/pem.h>
  12 #include <openssl/dh.h>
  13 #include <openssl/types.h>
  14 #include <openssl/params.h>
  15 #include "prov/bio.h"
  16 #include "prov/implementations.h"
  17 #include "prov/providercommonerr.h"
  18 #include "serializer_local.h"
  19
  20 static OSSL_OP_serializer_newctx_fn dh_param_newctx;
  21 static OSSL_OP_serializer_freectx_fn dh_param_freectx;
  22 static OSSL_OP_serializer_serialize_data_fn dh_param_der_data;
  23 static OSSL_OP_serializer_serialize_object_fn dh_param_der;
  24 static OSSL_OP_serializer_serialize_data_fn dh_param_pem_data;
  25 static OSSL_OP_serializer_serialize_object_fn dh_param_pem;
  26
  27 static OSSL_OP_serializer_serialize_data_fn dh_param_print_data;
  28 static OSSL_OP_serializer_serialize_object_fn dh_param_print;
  29
  30 /* Parameters : context */
  31
  32 /*
  33  * There's no specific implementation context, so we use the provider context
  34  */
  35 static void *dh_param_newctx(void *provctx)
  36 {
  37     return provctx;
  38 }
  39
  40 static void dh_param_freectx(void *ctx)
  41 {
  42 }
  43
  44 /* Public key : DER */
  45 static int dh_param_der_data(void *ctx, const OSSL_PARAM params[], BIO *out,
  46                              OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
  47 {
  48     OSSL_OP_keymgmt_importkey_fn *dh_importkey =
  49         ossl_prov_get_dh_importkey();
  50     int ok = 0;
  51
  52     if (dh_importkey != NULL) {
  53         DH *dh = dh_importkey(ctx, params); /* ctx == provctx */
  54
  55         ok = dh_param_der(ctx, dh, out, cb, cbarg);
  56         DH_free(dh);
  57     }
  58     return ok;
  59 }
  60
  61 static int dh_param_der(void *ctx, void *dh, BIO *out,
  62                         OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
  63 {
  64     return i2d_DHparams_bio(out, dh);
  65 }
  66
  67 /* Public key : PEM */
  68 static int dh_param_pem_data(void *ctx, const OSSL_PARAM params[], BIO *out,
  69                             OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
  70 {
  71     OSSL_OP_keymgmt_importkey_fn *dh_importkey =
  72         ossl_prov_get_dh_importkey();
  73     int ok = 0;
  74
  75     if (dh_importkey != NULL) {
  76         DH *dh = dh_importkey(ctx, params); /* ctx == provctx */
  77
  78         ok = dh_param_pem(ctx, dh, out, cb, cbarg);
  79         DH_free(dh);
  80     }
  81     return ok;
  82 }
  83
  84 static int dh_param_pem(void *ctx, void *dh, BIO *out,
  85                        OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
  86 {
  87     return PEM_write_bio_DHparams(out, dh);
  88 }
  89
  90 static int dh_param_print_data(void *ctx, const OSSL_PARAM params[], BIO *out,
  91                               OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
  92 {
  93     OSSL_OP_keymgmt_importkey_fn *dh_importkey =
  94         ossl_prov_get_dh_importkey();
  95     int ok = 0;
  96
  97     if (dh_importkey != NULL) {
  98         DH *dh = dh_importkey(ctx, params); /* ctx == provctx */
  99
 100         ok = dh_param_print(ctx, dh, out, cb, cbarg);
 101         DH_free(dh);
 102     }
 103     return ok;
 104 }
 105
 106 static int dh_param_print(void *ctx, void *dh, BIO *out,
 107                          OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
 108 {
 109     return ossl_prov_print_dh(out, dh, dh_print_params);
 110 }
 111
 112 const OSSL_DISPATCH dh_param_der_serializer_functions[] = {
 113     { OSSL_FUNC_SERIALIZER_NEWCTX, (void (*)(void))dh_param_newctx },
 114     { OSSL_FUNC_SERIALIZER_FREECTX, (void (*)(void))dh_param_freectx },
 115     { OSSL_FUNC_SERIALIZER_SERIALIZE_DATA, (void (*)(void))dh_param_der_data },
 116     { OSSL_FUNC_SERIALIZER_SERIALIZE_OBJECT, (void (*)(void))dh_param_der },
 117     { 0, NULL }
 118 };
 119
 120 const OSSL_DISPATCH dh_param_pem_serializer_functions[] = {
 121     { OSSL_FUNC_SERIALIZER_NEWCTX, (void (*)(void))dh_param_newctx },
 122     { OSSL_FUNC_SERIALIZER_FREECTX, (void (*)(void))dh_param_freectx },
 123     { OSSL_FUNC_SERIALIZER_SERIALIZE_DATA, (void (*)(void))dh_param_pem_data },
 124     { OSSL_FUNC_SERIALIZER_SERIALIZE_OBJECT, (void (*)(void))dh_param_pem },
 125     { 0, NULL }
 126 };
 127
 128 const OSSL_DISPATCH dh_param_text_serializer_functions[] = {
 129     { OSSL_FUNC_SERIALIZER_NEWCTX, (void (*)(void))dh_param_newctx },
 130     { OSSL_FUNC_SERIALIZER_FREECTX, (void (*)(void))dh_param_freectx },
 131     { OSSL_FUNC_SERIALIZER_SERIALIZE_OBJECT, (void (*)(void))dh_param_print },
 132     { OSSL_FUNC_SERIALIZER_SERIALIZE_DATA,
 133       (void (*)(void))dh_param_print_data },
 134     { 0, NULL }
 135 };