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
20static OSSL_OP_serializer_newctx_fn dh_pub_newctx;
21static OSSL_OP_serializer_freectx_fn dh_pub_freectx;
22static OSSL_OP_serializer_serialize_data_fn dh_pub_der_data;
23static OSSL_OP_serializer_serialize_object_fn dh_pub_der;
24static OSSL_OP_serializer_serialize_data_fn dh_pub_pem_data;
25static OSSL_OP_serializer_serialize_object_fn dh_pub_pem;
26
27static OSSL_OP_serializer_serialize_data_fn dh_pub_print_data;
28static 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 */
35static void *dh_pub_newctx(void *provctx)
36{
37 return provctx;
38}
39
40static void dh_pub_freectx(void *ctx)
41{
42}
43
44/* Public key : DER */
45static 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
61static 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 */
70static 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
86static 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
95static 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
111static 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
117const 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
125const 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
133const 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};
141