providers/implementations/serializers/serializer_dh_pub.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/err.h>
  12 #include <openssl/pem.h>
  13 #include <openssl/dh.h>
  14 #include <openssl/types.h>
  15 #include <openssl/params.h>
  16 #include "prov/bio.h"
  17 #include "prov/implementations.h"
  18 #include "serializer_local.h"
  19
  20 static OSSL_OP_serializer_newctx_fn dh_pub_newctx;
  21 static OSSL_OP_serializer_freectx_fn dh_pub_freectx;
  22 static OSSL_OP_serializer_serialize_data_fn dh_pub_der_data;
  23 static OSSL_OP_serializer_serialize_object_fn dh_pub_der;
  24 static OSSL_OP_serializer_serialize_data_fn dh_pub_pem_data;
  25 static OSSL_OP_serializer_serialize_object_fn dh_pub_pem;
  26
  27 static OSSL_OP_serializer_serialize_data_fn dh_pub_print_data;
  28 static OSSL_OP_serializer_serialize_object_fn dh_pub_print;
  29
  30 /* Public key : context */
  31
  32 /*
  33  * There's no specific implementation context, so we use the provider context
  34  */
  35 static void *dh_pub_newctx(void *provctx)
  36 {
  37     return provctx;
  38 }
  39
  40 static void dh_pub_freectx(void *ctx)
  41 {
  42 }
  43
  44 /* Public key : DER */
  45 static int dh_pub_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_pub_der(ctx, dh, out, cb, cbarg);
  56         DH_free(dh);
  57     }
  58     return ok;
  59 }
  60
  61 static int dh_pub_der(void *ctx, void *dh, BIO *out,
  62                        OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
  63 {
  64     return ossl_prov_write_pub_der_from_obj(out, dh, EVP_PKEY_DH,
  65                                             ossl_prov_prepare_dh_params,
  66                                             ossl_prov_dh_pub_to_der);
  67 }
  68
  69 /* Public key : PEM */
  70 static int dh_pub_pem_data(void *ctx, const OSSL_PARAM params[], BIO *out,
  71                             OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
  72 {
  73     OSSL_OP_keymgmt_importkey_fn *dh_importkey =
  74         ossl_prov_get_dh_importkey();
  75     int ok = 0;
  76
  77     if (dh_importkey != NULL) {
  78         DH *dh = dh_importkey(ctx, params); /* ctx == provctx */
  79
  80         ok = dh_pub_pem(ctx, dh, out, cb, cbarg);
  81         DH_free(dh);
  82     }
  83     return ok;
  84 }
  85
  86 static int dh_pub_pem(void *ctx, void *dh, BIO *out,
  87                        OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
  88 {
  89     return ossl_prov_write_pub_pem_from_obj(out, dh, EVP_PKEY_DH,
  90                                             ossl_prov_prepare_dh_params,
  91                                             ossl_prov_dh_pub_to_der);
  92
  93 }
  94
  95 static int dh_pub_print_data(void *ctx, const OSSL_PARAM params[], BIO *out,
  96                               OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
  97 {
  98     OSSL_OP_keymgmt_importkey_fn *dh_importkey =
  99         ossl_prov_get_dh_importkey();
 100     int ok = 0;
 101
 102     if (dh_importkey != NULL) {
 103         DH *dh = dh_importkey(ctx, params); /* ctx == provctx */
 104
 105         ok = dh_pub_print(ctx, dh, out, cb, cbarg);
 106         DH_free(dh);
 107     }
 108     return ok;
 109 }
 110
 111 static int dh_pub_print(void *ctx, void *dh, BIO *out,
 112                          OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
 113 {
 114     return ossl_prov_print_dh(out, dh, 0);
 115 }
 116
 117 const OSSL_DISPATCH dh_pub_der_serializer_functions[] = {
 118     { OSSL_FUNC_SERIALIZER_NEWCTX, (void (*)(void))dh_pub_newctx },
 119     { OSSL_FUNC_SERIALIZER_FREECTX, (void (*)(void))dh_pub_freectx },
 120     { OSSL_FUNC_SERIALIZER_SERIALIZE_DATA, (void (*)(void))dh_pub_der_data },
 121     { OSSL_FUNC_SERIALIZER_SERIALIZE_OBJECT, (void (*)(void))dh_pub_der },
 122     { 0, NULL }
 123 };
 124
 125 const OSSL_DISPATCH dh_pub_pem_serializer_functions[] = {
 126     { OSSL_FUNC_SERIALIZER_NEWCTX, (void (*)(void))dh_pub_newctx },
 127     { OSSL_FUNC_SERIALIZER_FREECTX, (void (*)(void))dh_pub_freectx },
 128     { OSSL_FUNC_SERIALIZER_SERIALIZE_DATA, (void (*)(void))dh_pub_pem_data },
 129     { OSSL_FUNC_SERIALIZER_SERIALIZE_OBJECT, (void (*)(void))dh_pub_pem },
 130     { 0, NULL }
 131 };
 132
 133 const OSSL_DISPATCH dh_pub_text_serializer_functions[] = {
 134     { OSSL_FUNC_SERIALIZER_NEWCTX, (void (*)(void))dh_pub_newctx },
 135     { OSSL_FUNC_SERIALIZER_FREECTX, (void (*)(void))dh_pub_freectx },
 136     { OSSL_FUNC_SERIALIZER_SERIALIZE_OBJECT, (void (*)(void))dh_pub_print },
 137     { OSSL_FUNC_SERIALIZER_SERIALIZE_DATA,
 138       (void (*)(void))dh_pub_print_data },
 139     { 0, NULL }
 140 };