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_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_KEYPAIR, params)
  59             && dh_pub_der(ctx, dh, out, cb, cbarg))
  60             ok = 1;
  61         dh_free(dh);
  62     }
  63     return ok;
  64 }
  65
  66 static int dh_pub_der(void *ctx, void *dh, BIO *out,
  67                        OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
  68 {
  69     return ossl_prov_write_pub_der_from_obj(out, dh, EVP_PKEY_DH,
  70                                             ossl_prov_prepare_dh_params,
  71                                             ossl_prov_dh_pub_to_der);
  72 }
  73
  74 /* Public key : PEM */
  75 static int dh_pub_pem_data(void *ctx, const OSSL_PARAM params[], BIO *out,
  76                             OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
  77 {
  78     OSSL_OP_keymgmt_new_fn *dh_new = ossl_prov_get_keymgmt_dh_new();
  79     OSSL_OP_keymgmt_free_fn *dh_free = ossl_prov_get_keymgmt_dh_free();
  80     OSSL_OP_keymgmt_import_fn *dh_import = ossl_prov_get_keymgmt_dh_import();
  81     int ok = 0;
  82
  83     if (dh_import != NULL) {
  84         DH *dh;
  85
  86         /* ctx == provctx */
  87         if ((dh = dh_new(ctx)) != NULL
  88             && dh_import(dh, OSSL_KEYMGMT_SELECT_KEYPAIR, params)
  89             && dh_pub_pem(ctx, dh, out, cb, cbarg))
  90             ok = 1;
  91         dh_free(dh);
  92     }
  93     return ok;
  94 }
  95
  96 static int dh_pub_pem(void *ctx, void *dh, BIO *out,
  97                        OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
  98 {
  99     return ossl_prov_write_pub_pem_from_obj(out, dh, EVP_PKEY_DH,
 100                                             ossl_prov_prepare_dh_params,
 101                                             ossl_prov_dh_pub_to_der);
 102
 103 }
 104
 105 static int dh_pub_print_data(void *ctx, const OSSL_PARAM params[], BIO *out,
 106                               OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
 107 {
 108     OSSL_OP_keymgmt_new_fn *dh_new = ossl_prov_get_keymgmt_dh_new();
 109     OSSL_OP_keymgmt_free_fn *dh_free = ossl_prov_get_keymgmt_dh_free();
 110     OSSL_OP_keymgmt_import_fn *dh_import = ossl_prov_get_keymgmt_dh_import();
 111     int ok = 0;
 112
 113     if (dh_import != NULL) {
 114         DH *dh;
 115
 116         /* ctx == provctx */
 117         if ((dh = dh_new(ctx)) != NULL
 118             && dh_import(dh, OSSL_KEYMGMT_SELECT_KEYPAIR, params)
 119             && dh_pub_print(ctx, dh, out, cb, cbarg))
 120             ok = 1;
 121         dh_free(dh);
 122     }
 123     return ok;
 124 }
 125
 126 static int dh_pub_print(void *ctx, void *dh, BIO *out,
 127                          OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
 128 {
 129     return ossl_prov_print_dh(out, dh, 0);
 130 }
 131
 132 const OSSL_DISPATCH dh_pub_der_serializer_functions[] = {
 133     { OSSL_FUNC_SERIALIZER_NEWCTX, (void (*)(void))dh_pub_newctx },
 134     { OSSL_FUNC_SERIALIZER_FREECTX, (void (*)(void))dh_pub_freectx },
 135     { OSSL_FUNC_SERIALIZER_SERIALIZE_DATA, (void (*)(void))dh_pub_der_data },
 136     { OSSL_FUNC_SERIALIZER_SERIALIZE_OBJECT, (void (*)(void))dh_pub_der },
 137     { 0, NULL }
 138 };
 139
 140 const OSSL_DISPATCH dh_pub_pem_serializer_functions[] = {
 141     { OSSL_FUNC_SERIALIZER_NEWCTX, (void (*)(void))dh_pub_newctx },
 142     { OSSL_FUNC_SERIALIZER_FREECTX, (void (*)(void))dh_pub_freectx },
 143     { OSSL_FUNC_SERIALIZER_SERIALIZE_DATA, (void (*)(void))dh_pub_pem_data },
 144     { OSSL_FUNC_SERIALIZER_SERIALIZE_OBJECT, (void (*)(void))dh_pub_pem },
 145     { 0, NULL }
 146 };
 147
 148 const OSSL_DISPATCH dh_pub_text_serializer_functions[] = {
 149     { OSSL_FUNC_SERIALIZER_NEWCTX, (void (*)(void))dh_pub_newctx },
 150     { OSSL_FUNC_SERIALIZER_FREECTX, (void (*)(void))dh_pub_freectx },
 151     { OSSL_FUNC_SERIALIZER_SERIALIZE_OBJECT, (void (*)(void))dh_pub_print },
 152     { OSSL_FUNC_SERIALIZER_SERIALIZE_DATA,
 153       (void (*)(void))dh_pub_print_data },
 154     { 0, NULL }
 155 };