providers/implementations/serializers/serializer_dsa_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/dsa.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 dsa_pub_newctx;
  21 static OSSL_OP_serializer_freectx_fn dsa_pub_freectx;
  22 static OSSL_OP_serializer_serialize_data_fn dsa_pub_der_data;
  23 static OSSL_OP_serializer_serialize_object_fn dsa_pub_der;
  24 static OSSL_OP_serializer_serialize_data_fn dsa_pub_pem_data;
  25 static OSSL_OP_serializer_serialize_object_fn dsa_pub_pem;
  26
  27 static OSSL_OP_serializer_serialize_data_fn dsa_pub_print_data;
  28 static OSSL_OP_serializer_serialize_object_fn dsa_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 *dsa_pub_newctx(void *provctx)
  36 {
  37     return provctx;
  38 }
  39
  40 static void dsa_pub_freectx(void *ctx)
  41 {
  42 }
  43
  44 /* Public key : DER */
  45 static int dsa_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 *dsa_new = ossl_prov_get_keymgmt_dsa_new();
  49     OSSL_OP_keymgmt_free_fn *dsa_free = ossl_prov_get_keymgmt_dsa_free();
  50     OSSL_OP_keymgmt_import_fn *dsa_import = ossl_prov_get_keymgmt_dsa_import();
  51     int ok = 0;
  52
  53     if (dsa_import != NULL) {
  54         DSA *dsa;
  55
  56         /* ctx == provctx */
  57         if ((dsa = dsa_new(ctx)) != NULL
  58             && dsa_import(dsa, OSSL_KEYMGMT_SELECT_KEYPAIR, params)
  59             && dsa_pub_der(ctx, dsa, out, cb, cbarg))
  60             ok = 1;
  61         dsa_free(dsa);
  62     }
  63     return ok;
  64 }
  65
  66 static int dsa_pub_der(void *ctx, void *dsa, BIO *out,
  67                        OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
  68 {
  69     /*
  70      * TODO(v3.0) implement setting save_parameters, see dsa_pub_encode()
  71      * in crypto/dsa/dsa_ameth.c
  72      */
  73     int save_parameters = 1;
  74
  75     return
  76         save_parameters
  77         ? ossl_prov_write_pub_der_from_obj(out, dsa, EVP_PKEY_DSA,
  78                                            ossl_prov_prepare_all_dsa_params,
  79                                            ossl_prov_dsa_pub_to_der)
  80         : ossl_prov_write_pub_der_from_obj(out, dsa, EVP_PKEY_DSA,
  81                                            ossl_prov_prepare_dsa_params,
  82                                            ossl_prov_dsa_pub_to_der);
  83
  84 }
  85
  86 /* Public key : PEM */
  87 static int dsa_pub_pem_data(void *ctx, const OSSL_PARAM params[], BIO *out,
  88                             OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
  89 {
  90     OSSL_OP_keymgmt_new_fn *dsa_new = ossl_prov_get_keymgmt_dsa_new();
  91     OSSL_OP_keymgmt_free_fn *dsa_free = ossl_prov_get_keymgmt_dsa_free();
  92     OSSL_OP_keymgmt_import_fn *dsa_import = ossl_prov_get_keymgmt_dsa_import();
  93     int ok = 0;
  94
  95     if (dsa_import != NULL) {
  96         DSA *dsa;
  97
  98         /* ctx == provctx */
  99         if ((dsa = dsa_new(ctx)) != NULL
 100             && dsa_import(dsa, OSSL_KEYMGMT_SELECT_KEYPAIR, params)
 101             && dsa_pub_pem(ctx, dsa, out, cb, cbarg))
 102             ok = 1;
 103         dsa_free(dsa);
 104     }
 105     return ok;
 106 }
 107
 108 static int dsa_pub_pem(void *ctx, void *dsa, BIO *out,
 109                        OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
 110 {
 111     return ossl_prov_write_pub_pem_from_obj(out, dsa, EVP_PKEY_DSA,
 112                                             ossl_prov_prepare_dsa_params,
 113                                             ossl_prov_dsa_pub_to_der);
 114 }
 115
 116 static int dsa_pub_print_data(void *ctx, const OSSL_PARAM params[], BIO *out,
 117                               OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
 118 {
 119     OSSL_OP_keymgmt_new_fn *dsa_new = ossl_prov_get_keymgmt_dsa_new();
 120     OSSL_OP_keymgmt_free_fn *dsa_free = ossl_prov_get_keymgmt_dsa_free();
 121     OSSL_OP_keymgmt_import_fn *dsa_import = ossl_prov_get_keymgmt_dsa_import();
 122     int ok = 0;
 123
 124     if (dsa_import != NULL) {
 125         DSA *dsa;
 126
 127         /* ctx == provctx */
 128         if ((dsa = dsa_new(ctx)) != NULL
 129             && dsa_import(dsa, OSSL_KEYMGMT_SELECT_KEYPAIR, params)
 130             && dsa_pub_print(ctx, dsa, out, cb, cbarg))
 131             ok = 1;
 132         dsa_free(dsa);
 133     }
 134     return ok;
 135 }
 136
 137 static int dsa_pub_print(void *ctx, void *dsa, BIO *out,
 138                          OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
 139 {
 140     return ossl_prov_print_dsa(out, dsa, 0);
 141 }
 142
 143 const OSSL_DISPATCH dsa_pub_der_serializer_functions[] = {
 144     { OSSL_FUNC_SERIALIZER_NEWCTX, (void (*)(void))dsa_pub_newctx },
 145     { OSSL_FUNC_SERIALIZER_FREECTX, (void (*)(void))dsa_pub_freectx },
 146     { OSSL_FUNC_SERIALIZER_SERIALIZE_DATA, (void (*)(void))dsa_pub_der_data },
 147     { OSSL_FUNC_SERIALIZER_SERIALIZE_OBJECT, (void (*)(void))dsa_pub_der },
 148     { 0, NULL }
 149 };
 150
 151 const OSSL_DISPATCH dsa_pub_pem_serializer_functions[] = {
 152     { OSSL_FUNC_SERIALIZER_NEWCTX, (void (*)(void))dsa_pub_newctx },
 153     { OSSL_FUNC_SERIALIZER_FREECTX, (void (*)(void))dsa_pub_freectx },
 154     { OSSL_FUNC_SERIALIZER_SERIALIZE_DATA, (void (*)(void))dsa_pub_pem_data },
 155     { OSSL_FUNC_SERIALIZER_SERIALIZE_OBJECT, (void (*)(void))dsa_pub_pem },
 156     { 0, NULL }
 157 };
 158
 159 const OSSL_DISPATCH dsa_pub_text_serializer_functions[] = {
 160     { OSSL_FUNC_SERIALIZER_NEWCTX, (void (*)(void))dsa_pub_newctx },
 161     { OSSL_FUNC_SERIALIZER_FREECTX, (void (*)(void))dsa_pub_freectx },
 162     { OSSL_FUNC_SERIALIZER_SERIALIZE_OBJECT, (void (*)(void))dsa_pub_print },
 163     { OSSL_FUNC_SERIALIZER_SERIALIZE_DATA,
 164       (void (*)(void))dsa_pub_print_data },
 165     { 0, NULL }
 166 };