providers/implementations/serializers/serializer_dh_param.c

   1 /*
   2  * Copyright 2019-2020 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 /*
  11  * DH low level APIs are deprecated for public use, but still ok for
  12  * internal use.
  13  */
  14 #include "internal/deprecated.h"
  15
  16 #include <openssl/core_numbers.h>
  17 #include <openssl/pem.h>
  18 #include <openssl/dh.h>
  19 #include <openssl/types.h>
  20 #include <openssl/params.h>
  21 #include "prov/bio.h"
  22 #include "prov/implementations.h"
  23 #include "prov/providercommonerr.h"
  24 #include "serializer_local.h"
  25
  26 static OSSL_OP_serializer_newctx_fn dh_param_newctx;
  27 static OSSL_OP_serializer_freectx_fn dh_param_freectx;
  28 static OSSL_OP_serializer_serialize_data_fn dh_param_der_data;
  29 static OSSL_OP_serializer_serialize_object_fn dh_param_der;
  30 static OSSL_OP_serializer_serialize_data_fn dh_param_pem_data;
  31 static OSSL_OP_serializer_serialize_object_fn dh_param_pem;
  32
  33 static OSSL_OP_serializer_serialize_data_fn dh_param_print_data;
  34 static OSSL_OP_serializer_serialize_object_fn dh_param_print;
  35
  36 /* Parameters : context */
  37
  38 /*
  39  * There's no specific implementation context, so we use the provider context
  40  */
  41 static void *dh_param_newctx(void *provctx)
  42 {
  43     return provctx;
  44 }
  45
  46 static void dh_param_freectx(void *ctx)
  47 {
  48 }
  49
  50 /* Public key : DER */
  51 static int dh_param_der_data(void *ctx, const OSSL_PARAM params[], BIO *out,
  52                              OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
  53 {
  54     OSSL_OP_keymgmt_new_fn *dh_new = ossl_prov_get_keymgmt_dh_new();
  55     OSSL_OP_keymgmt_free_fn *dh_free = ossl_prov_get_keymgmt_dh_free();
  56     OSSL_OP_keymgmt_import_fn *dh_import = ossl_prov_get_keymgmt_dh_import();
  57     int ok = 0;
  58
  59     if (dh_import != NULL) {
  60         DH *dh;
  61
  62         /* ctx == provctx */
  63         if ((dh = dh_new(ctx)) != NULL
  64             && dh_import(dh, OSSL_KEYMGMT_SELECT_ALL_PARAMETERS, params)
  65             && dh_param_der(ctx, dh, out, cb, cbarg))
  66             ok = 1;
  67         dh_free(dh);
  68     }
  69     return ok;
  70 }
  71
  72 static int dh_param_der(void *ctx, void *dh, BIO *out,
  73                         OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
  74 {
  75     return i2d_DHparams_bio(out, dh);
  76 }
  77
  78 /* Public key : PEM */
  79 static int dh_param_pem_data(void *ctx, const OSSL_PARAM params[], BIO *out,
  80                              OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
  81 {
  82     OSSL_OP_keymgmt_new_fn *dh_new = ossl_prov_get_keymgmt_dh_new();
  83     OSSL_OP_keymgmt_free_fn *dh_free = ossl_prov_get_keymgmt_dh_free();
  84     OSSL_OP_keymgmt_import_fn *dh_import = ossl_prov_get_keymgmt_dh_import();
  85     int ok = 0;
  86
  87     if (dh_import != NULL) {
  88         DH *dh;
  89
  90         /* ctx == provctx */
  91         if ((dh = dh_new(ctx)) != NULL
  92             && dh_import(dh, OSSL_KEYMGMT_SELECT_ALL_PARAMETERS, params)
  93             && dh_param_pem(ctx, dh, out, cb, cbarg))
  94             ok = 1;
  95         dh_free(dh);
  96     }
  97     return ok;
  98 }
  99
 100 static int dh_param_pem(void *ctx, void *dh, BIO *out,
 101                        OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
 102 {
 103     return PEM_write_bio_DHparams(out, dh);
 104 }
 105
 106 static int dh_param_print_data(void *ctx, const OSSL_PARAM params[], BIO *out,
 107                                OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
 108 {
 109     OSSL_OP_keymgmt_new_fn *dh_new = ossl_prov_get_keymgmt_dh_new();
 110     OSSL_OP_keymgmt_free_fn *dh_free = ossl_prov_get_keymgmt_dh_free();
 111     OSSL_OP_keymgmt_import_fn *dh_import = ossl_prov_get_keymgmt_dh_import();
 112     int ok = 0;
 113
 114     if (dh_import != NULL) {
 115         DH *dh;
 116
 117         /* ctx == provctx */
 118         if ((dh = dh_new(ctx)) != NULL
 119             && dh_import(dh, OSSL_KEYMGMT_SELECT_ALL_PARAMETERS, params)
 120             && dh_param_print(ctx, dh, out, cb, cbarg))
 121             ok = 1;
 122         dh_free(dh);
 123     }
 124     return ok;
 125 }
 126
 127 static int dh_param_print(void *ctx, void *dh, BIO *out,
 128                          OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
 129 {
 130     return ossl_prov_print_dh(out, dh, dh_print_params);
 131 }
 132
 133 const OSSL_DISPATCH dh_param_der_serializer_functions[] = {
 134     { OSSL_FUNC_SERIALIZER_NEWCTX, (void (*)(void))dh_param_newctx },
 135     { OSSL_FUNC_SERIALIZER_FREECTX, (void (*)(void))dh_param_freectx },
 136     { OSSL_FUNC_SERIALIZER_SERIALIZE_DATA, (void (*)(void))dh_param_der_data },
 137     { OSSL_FUNC_SERIALIZER_SERIALIZE_OBJECT, (void (*)(void))dh_param_der },
 138     { 0, NULL }
 139 };
 140
 141 const OSSL_DISPATCH dh_param_pem_serializer_functions[] = {
 142     { OSSL_FUNC_SERIALIZER_NEWCTX, (void (*)(void))dh_param_newctx },
 143     { OSSL_FUNC_SERIALIZER_FREECTX, (void (*)(void))dh_param_freectx },
 144     { OSSL_FUNC_SERIALIZER_SERIALIZE_DATA, (void (*)(void))dh_param_pem_data },
 145     { OSSL_FUNC_SERIALIZER_SERIALIZE_OBJECT, (void (*)(void))dh_param_pem },
 146     { 0, NULL }
 147 };
 148
 149 const OSSL_DISPATCH dh_param_text_serializer_functions[] = {
 150     { OSSL_FUNC_SERIALIZER_NEWCTX, (void (*)(void))dh_param_newctx },
 151     { OSSL_FUNC_SERIALIZER_FREECTX, (void (*)(void))dh_param_freectx },
 152     { OSSL_FUNC_SERIALIZER_SERIALIZE_OBJECT, (void (*)(void))dh_param_print },
 153     { OSSL_FUNC_SERIALIZER_SERIALIZE_DATA,
 154       (void (*)(void))dh_param_print_data },
 155     { 0, NULL }
 156 };