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/pem.h>
12#include <openssl/dh.h>
13#include <openssl/types.h>
14#include <openssl/params.h>
15#include "prov/bio.h"
16#include "prov/implementations.h"
17#include "prov/providercommonerr.h"
18#include "serializer_local.h"
19
20static OSSL_OP_serializer_newctx_fn dh_param_newctx;
21static OSSL_OP_serializer_freectx_fn dh_param_freectx;
22static OSSL_OP_serializer_serialize_data_fn dh_param_der_data;
23static OSSL_OP_serializer_serialize_object_fn dh_param_der;
24static OSSL_OP_serializer_serialize_data_fn dh_param_pem_data;
25static OSSL_OP_serializer_serialize_object_fn dh_param_pem;
26
27static OSSL_OP_serializer_serialize_data_fn dh_param_print_data;
28static OSSL_OP_serializer_serialize_object_fn dh_param_print;
29
30/* Parameters : context */
31
32/*
33 * There's no specific implementation context, so we use the provider context
34 */
35static void *dh_param_newctx(void *provctx)
36{
37 return provctx;
38}
39
40static void dh_param_freectx(void *ctx)
41{
42}
43
44/* Public key : DER */
45static int dh_param_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_param_der(ctx, dh, out, cb, cbarg);
56 DH_free(dh);
57 }
58 return ok;
59}
60
61static int dh_param_der(void *ctx, void *dh, BIO *out,
62 OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
63{
64 return i2d_DHparams_bio(out, dh);
65}
66
67/* Public key : PEM */
68static int dh_param_pem_data(void *ctx, const OSSL_PARAM params[], BIO *out,
69 OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
70{
71 OSSL_OP_keymgmt_importkey_fn *dh_importkey =
72 ossl_prov_get_dh_importkey();
73 int ok = 0;
74
75 if (dh_importkey != NULL) {
76 DH *dh = dh_importkey(ctx, params); /* ctx == provctx */
77
78 ok = dh_param_pem(ctx, dh, out, cb, cbarg);
79 DH_free(dh);
80 }
81 return ok;
82}
83
84static int dh_param_pem(void *ctx, void *dh, BIO *out,
85 OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
86{
87 return PEM_write_bio_DHparams(out, dh);
88}
89
90static int dh_param_print_data(void *ctx, const OSSL_PARAM params[], BIO *out,
91 OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
92{
93 OSSL_OP_keymgmt_importkey_fn *dh_importkey =
94 ossl_prov_get_dh_importkey();
95 int ok = 0;
96
97 if (dh_importkey != NULL) {
98 DH *dh = dh_importkey(ctx, params); /* ctx == provctx */
99
100 ok = dh_param_print(ctx, dh, out, cb, cbarg);
101 DH_free(dh);
102 }
103 return ok;
104}
105
106static int dh_param_print(void *ctx, void *dh, BIO *out,
107 OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
108{
109 return ossl_prov_print_dh(out, dh, dh_print_params);
110}
111
112const OSSL_DISPATCH dh_param_der_serializer_functions[] = {
113 { OSSL_FUNC_SERIALIZER_NEWCTX, (void (*)(void))dh_param_newctx },
114 { OSSL_FUNC_SERIALIZER_FREECTX, (void (*)(void))dh_param_freectx },
115 { OSSL_FUNC_SERIALIZER_SERIALIZE_DATA, (void (*)(void))dh_param_der_data },
116 { OSSL_FUNC_SERIALIZER_SERIALIZE_OBJECT, (void (*)(void))dh_param_der },
117 { 0, NULL }
118};
119
120const OSSL_DISPATCH dh_param_pem_serializer_functions[] = {
121 { OSSL_FUNC_SERIALIZER_NEWCTX, (void (*)(void))dh_param_newctx },
122 { OSSL_FUNC_SERIALIZER_FREECTX, (void (*)(void))dh_param_freectx },
123 { OSSL_FUNC_SERIALIZER_SERIALIZE_DATA, (void (*)(void))dh_param_pem_data },
124 { OSSL_FUNC_SERIALIZER_SERIALIZE_OBJECT, (void (*)(void))dh_param_pem },
125 { 0, NULL }
126};
127
128const OSSL_DISPATCH dh_param_text_serializer_functions[] = {
129 { OSSL_FUNC_SERIALIZER_NEWCTX, (void (*)(void))dh_param_newctx },
130 { OSSL_FUNC_SERIALIZER_FREECTX, (void (*)(void))dh_param_freectx },
131 { OSSL_FUNC_SERIALIZER_SERIALIZE_OBJECT, (void (*)(void))dh_param_print },
132 { OSSL_FUNC_SERIALIZER_SERIALIZE_DATA,
133 (void (*)(void))dh_param_print_data },
134 { 0, NULL }
135};
136