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_new_fn *dh_new = ossl_prov_get_keymgmt_dh_new();
  49     OSSL_OP_keymgmt_free_fn *dh_free = ossl_prov_get_keymgmt_dh_free();
  50     OSSL_OP_keymgmt_import_fn *dh_import = ossl_prov_get_keymgmt_dh_import();
  51     int ok = 0;
  52
  53     if (dh_import != NULL) {
  54         DH *dh;
  55
  56         /* ctx == provctx */
  57         if ((dh = dh_new(ctx)) != NULL
  58             && dh_import(dh, OSSL_KEYMGMT_SELECT_ALL_PARAMETERS, params)
  59             && dh_param_der(ctx, dh, out, cb, cbarg))
  60             ok = 1;
  61         dh_free(dh);
  62     }
  63     return ok;
  64 }
  65
  66 static int dh_param_der(void *ctx, void *dh, BIO *out,
  67                         OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
  68 {
  69     return i2d_DHparams_bio(out, dh);
  70 }
  71
  72 /* Public key : PEM */
  73 static int dh_param_pem_data(void *ctx, const OSSL_PARAM params[], BIO *out,
  74                              OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
  75 {
  76     OSSL_OP_keymgmt_new_fn *dh_new = ossl_prov_get_keymgmt_dh_new();
  77     OSSL_OP_keymgmt_free_fn *dh_free = ossl_prov_get_keymgmt_dh_free();
  78     OSSL_OP_keymgmt_import_fn *dh_import = ossl_prov_get_keymgmt_dh_import();
  79     int ok = 0;
  80
  81     if (dh_import != NULL) {
  82         DH *dh;
  83
  84         /* ctx == provctx */
  85         if ((dh = dh_new(ctx)) != NULL
  86             && dh_import(dh, OSSL_KEYMGMT_SELECT_ALL_PARAMETERS, params)
  87             && dh_param_pem(ctx, dh, out, cb, cbarg))
  88             ok = 1;
  89         dh_free(dh);
  90     }
  91     return ok;
  92 }
  93
  94 static int dh_param_pem(void *ctx, void *dh, BIO *out,
  95                        OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
  96 {
  97     return PEM_write_bio_DHparams(out, dh);
  98 }
  99
 100 static int dh_param_print_data(void *ctx, const OSSL_PARAM params[], BIO *out,
 101                                OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
 102 {
 103     OSSL_OP_keymgmt_new_fn *dh_new = ossl_prov_get_keymgmt_dh_new();
 104     OSSL_OP_keymgmt_free_fn *dh_free = ossl_prov_get_keymgmt_dh_free();
 105     OSSL_OP_keymgmt_import_fn *dh_import = ossl_prov_get_keymgmt_dh_import();
 106     int ok = 0;
 107
 108     if (dh_import != NULL) {
 109         DH *dh;
 110
 111         /* ctx == provctx */
 112         if ((dh = dh_new(ctx)) != NULL
 113             && dh_import(dh, OSSL_KEYMGMT_SELECT_ALL_PARAMETERS, params)
 114             && dh_param_print(ctx, dh, out, cb, cbarg))
 115             ok = 1;
 116         dh_free(dh);
 117     }
 118     return ok;
 119 }
 120
 121 static int dh_param_print(void *ctx, void *dh, BIO *out,
 122                          OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
 123 {
 124     return ossl_prov_print_dh(out, dh, dh_print_params);
 125 }
 126
 127 const OSSL_DISPATCH dh_param_der_serializer_functions[] = {
 128     { OSSL_FUNC_SERIALIZER_NEWCTX, (void (*)(void))dh_param_newctx },
 129     { OSSL_FUNC_SERIALIZER_FREECTX, (void (*)(void))dh_param_freectx },
 130     { OSSL_FUNC_SERIALIZER_SERIALIZE_DATA, (void (*)(void))dh_param_der_data },
 131     { OSSL_FUNC_SERIALIZER_SERIALIZE_OBJECT, (void (*)(void))dh_param_der },
 132     { 0, NULL }
 133 };
 134
 135 const OSSL_DISPATCH dh_param_pem_serializer_functions[] = {
 136     { OSSL_FUNC_SERIALIZER_NEWCTX, (void (*)(void))dh_param_newctx },
 137     { OSSL_FUNC_SERIALIZER_FREECTX, (void (*)(void))dh_param_freectx },
 138     { OSSL_FUNC_SERIALIZER_SERIALIZE_DATA, (void (*)(void))dh_param_pem_data },
 139     { OSSL_FUNC_SERIALIZER_SERIALIZE_OBJECT, (void (*)(void))dh_param_pem },
 140     { 0, NULL }
 141 };
 142
 143 const OSSL_DISPATCH dh_param_text_serializer_functions[] = {
 144     { OSSL_FUNC_SERIALIZER_NEWCTX, (void (*)(void))dh_param_newctx },
 145     { OSSL_FUNC_SERIALIZER_FREECTX, (void (*)(void))dh_param_freectx },
 146     { OSSL_FUNC_SERIALIZER_SERIALIZE_OBJECT, (void (*)(void))dh_param_print },
 147     { OSSL_FUNC_SERIALIZER_SERIALIZE_DATA,
 148       (void (*)(void))dh_param_print_data },
 149     { 0, NULL }
 150 };