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 /*
  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/err.h>
  18 #include <openssl/pem.h>
  19 #include <openssl/dh.h>
  20 #include <openssl/types.h>
  21 #include <openssl/params.h>
  22 #include "prov/bio.h"
  23 #include "prov/implementations.h"
  24 #include "serializer_local.h"
  25
  26 static OSSL_OP_serializer_newctx_fn dh_pub_newctx;
  27 static OSSL_OP_serializer_freectx_fn dh_pub_freectx;
  28 static OSSL_OP_serializer_serialize_data_fn dh_pub_der_data;
  29 static OSSL_OP_serializer_serialize_object_fn dh_pub_der;
  30 static OSSL_OP_serializer_serialize_data_fn dh_pub_pem_data;
  31 static OSSL_OP_serializer_serialize_object_fn dh_pub_pem;
  32
  33 static OSSL_OP_serializer_serialize_data_fn dh_pub_print_data;
  34 static OSSL_OP_serializer_serialize_object_fn dh_pub_print;
  35
  36 /* Public key : context */
  37
  38 /*
  39  * There's no specific implementation context, so we use the provider context
  40  */
  41 static void *dh_pub_newctx(void *provctx)
  42 {
  43     return provctx;
  44 }
  45
  46 static void dh_pub_freectx(void *ctx)
  47 {
  48 }
  49
  50 /* Public key : DER */
  51 static int dh_pub_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_KEYPAIR, params)
  65             && dh_pub_der(ctx, dh, out, cb, cbarg))
  66             ok = 1;
  67         dh_free(dh);
  68     }
  69     return ok;
  70 }
  71
  72 static int dh_pub_der(void *ctx, void *dh, BIO *out,
  73                        OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
  74 {
  75     return ossl_prov_write_pub_der_from_obj(out, dh, EVP_PKEY_DH,
  76                                             ossl_prov_prepare_dh_params,
  77                                             ossl_prov_dh_pub_to_der);
  78 }
  79
  80 /* Public key : PEM */
  81 static int dh_pub_pem_data(void *ctx, const OSSL_PARAM params[], BIO *out,
  82                             OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
  83 {
  84     OSSL_OP_keymgmt_new_fn *dh_new = ossl_prov_get_keymgmt_dh_new();
  85     OSSL_OP_keymgmt_free_fn *dh_free = ossl_prov_get_keymgmt_dh_free();
  86     OSSL_OP_keymgmt_import_fn *dh_import = ossl_prov_get_keymgmt_dh_import();
  87     int ok = 0;
  88
  89     if (dh_import != NULL) {
  90         DH *dh;
  91
  92         /* ctx == provctx */
  93         if ((dh = dh_new(ctx)) != NULL
  94             && dh_import(dh, OSSL_KEYMGMT_SELECT_KEYPAIR, params)
  95             && dh_pub_pem(ctx, dh, out, cb, cbarg))
  96             ok = 1;
  97         dh_free(dh);
  98     }
  99     return ok;
 100 }
 101
 102 static int dh_pub_pem(void *ctx, void *dh, BIO *out,
 103                        OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
 104 {
 105     return ossl_prov_write_pub_pem_from_obj(out, dh, EVP_PKEY_DH,
 106                                             ossl_prov_prepare_dh_params,
 107                                             ossl_prov_dh_pub_to_der);
 108
 109 }
 110
 111 static int dh_pub_print_data(void *ctx, const OSSL_PARAM params[], BIO *out,
 112                               OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
 113 {
 114     OSSL_OP_keymgmt_new_fn *dh_new = ossl_prov_get_keymgmt_dh_new();
 115     OSSL_OP_keymgmt_free_fn *dh_free = ossl_prov_get_keymgmt_dh_free();
 116     OSSL_OP_keymgmt_import_fn *dh_import = ossl_prov_get_keymgmt_dh_import();
 117     int ok = 0;
 118
 119     if (dh_import != NULL) {
 120         DH *dh;
 121
 122         /* ctx == provctx */
 123         if ((dh = dh_new(ctx)) != NULL
 124             && dh_import(dh, OSSL_KEYMGMT_SELECT_KEYPAIR, params)
 125             && dh_pub_print(ctx, dh, out, cb, cbarg))
 126             ok = 1;
 127         dh_free(dh);
 128     }
 129     return ok;
 130 }
 131
 132 static int dh_pub_print(void *ctx, void *dh, BIO *out,
 133                          OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
 134 {
 135     return ossl_prov_print_dh(out, dh, 0);
 136 }
 137
 138 const OSSL_DISPATCH dh_pub_der_serializer_functions[] = {
 139     { OSSL_FUNC_SERIALIZER_NEWCTX, (void (*)(void))dh_pub_newctx },
 140     { OSSL_FUNC_SERIALIZER_FREECTX, (void (*)(void))dh_pub_freectx },
 141     { OSSL_FUNC_SERIALIZER_SERIALIZE_DATA, (void (*)(void))dh_pub_der_data },
 142     { OSSL_FUNC_SERIALIZER_SERIALIZE_OBJECT, (void (*)(void))dh_pub_der },
 143     { 0, NULL }
 144 };
 145
 146 const OSSL_DISPATCH dh_pub_pem_serializer_functions[] = {
 147     { OSSL_FUNC_SERIALIZER_NEWCTX, (void (*)(void))dh_pub_newctx },
 148     { OSSL_FUNC_SERIALIZER_FREECTX, (void (*)(void))dh_pub_freectx },
 149     { OSSL_FUNC_SERIALIZER_SERIALIZE_DATA, (void (*)(void))dh_pub_pem_data },
 150     { OSSL_FUNC_SERIALIZER_SERIALIZE_OBJECT, (void (*)(void))dh_pub_pem },
 151     { 0, NULL }
 152 };
 153
 154 const OSSL_DISPATCH dh_pub_text_serializer_functions[] = {
 155     { OSSL_FUNC_SERIALIZER_NEWCTX, (void (*)(void))dh_pub_newctx },
 156     { OSSL_FUNC_SERIALIZER_FREECTX, (void (*)(void))dh_pub_freectx },
 157     { OSSL_FUNC_SERIALIZER_SERIALIZE_OBJECT, (void (*)(void))dh_pub_print },
 158     { OSSL_FUNC_SERIALIZER_SERIALIZE_DATA,
 159       (void (*)(void))dh_pub_print_data },
 160     { 0, NULL }
 161 };