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045e51cb RL |
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 | ||
ada66e78 P |
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 | ||
045e51cb RL |
16 | #include <openssl/core_numbers.h> |
17 | #include <openssl/core_names.h> | |
18 | #include <openssl/err.h> | |
19 | #include <openssl/pem.h> | |
20 | #include <openssl/dh.h> | |
21 | #include <openssl/types.h> | |
22 | #include <openssl/params.h> | |
23 | #include "prov/bio.h" | |
24 | #include "prov/implementations.h" | |
25 | #include "serializer_local.h" | |
26 | ||
27 | static OSSL_OP_serializer_newctx_fn dh_priv_newctx; | |
28 | static OSSL_OP_serializer_freectx_fn dh_priv_freectx; | |
29 | static OSSL_OP_serializer_set_ctx_params_fn dh_priv_set_ctx_params; | |
30 | static OSSL_OP_serializer_settable_ctx_params_fn dh_priv_settable_ctx_params; | |
31 | static OSSL_OP_serializer_serialize_data_fn dh_priv_der_data; | |
32 | static OSSL_OP_serializer_serialize_object_fn dh_priv_der; | |
33 | static OSSL_OP_serializer_serialize_data_fn dh_pem_priv_data; | |
34 | static OSSL_OP_serializer_serialize_object_fn dh_pem_priv; | |
35 | ||
36 | static OSSL_OP_serializer_newctx_fn dh_print_newctx; | |
37 | static OSSL_OP_serializer_freectx_fn dh_print_freectx; | |
38 | static OSSL_OP_serializer_serialize_data_fn dh_priv_print_data; | |
39 | static OSSL_OP_serializer_serialize_object_fn dh_priv_print; | |
40 | ||
41 | /* | |
42 | * Context used for private key serialization. | |
43 | */ | |
44 | struct dh_priv_ctx_st { | |
45 | void *provctx; | |
46 | ||
47 | struct pkcs8_encrypt_ctx_st sc; | |
48 | }; | |
49 | ||
50 | /* Private key : context */ | |
51 | static void *dh_priv_newctx(void *provctx) | |
52 | { | |
53 | struct dh_priv_ctx_st *ctx = OPENSSL_zalloc(sizeof(*ctx)); | |
54 | ||
55 | if (ctx != NULL) { | |
56 | ctx->provctx = provctx; | |
045e51cb | 57 | |
4c1e06fc P |
58 | /* -1 is the "whatever" indicator, i.e. the PKCS8 library default PBE */ |
59 | ctx->sc.pbe_nid = -1; | |
60 | } | |
045e51cb RL |
61 | return ctx; |
62 | } | |
63 | ||
64 | static void dh_priv_freectx(void *vctx) | |
65 | { | |
66 | struct dh_priv_ctx_st *ctx = vctx; | |
67 | ||
68 | EVP_CIPHER_free(ctx->sc.cipher); | |
69 | OPENSSL_free(ctx->sc.cipher_pass); | |
70 | OPENSSL_free(ctx); | |
71 | } | |
72 | ||
73 | static const OSSL_PARAM *dh_priv_settable_ctx_params(void) | |
74 | { | |
75 | static const OSSL_PARAM settables[] = { | |
76 | OSSL_PARAM_utf8_string(OSSL_SERIALIZER_PARAM_CIPHER, NULL, 0), | |
77 | OSSL_PARAM_octet_string(OSSL_SERIALIZER_PARAM_PASS, NULL, 0), | |
78 | OSSL_PARAM_END, | |
79 | }; | |
80 | ||
81 | return settables; | |
82 | } | |
83 | ||
84 | static int dh_priv_set_ctx_params(void *vctx, const OSSL_PARAM params[]) | |
85 | { | |
86 | struct dh_priv_ctx_st *ctx = vctx; | |
87 | const OSSL_PARAM *p; | |
88 | ||
89 | if ((p = OSSL_PARAM_locate_const(params, OSSL_SERIALIZER_PARAM_CIPHER)) | |
90 | != NULL) { | |
91 | const OSSL_PARAM *propsp = | |
92 | OSSL_PARAM_locate_const(params, OSSL_SERIALIZER_PARAM_PROPERTIES); | |
93 | const char *props = NULL; | |
94 | ||
95 | if (p->data_type != OSSL_PARAM_UTF8_STRING) | |
96 | return 0; | |
97 | if (propsp != NULL && propsp->data_type != OSSL_PARAM_UTF8_STRING) | |
98 | return 0; | |
99 | props = (propsp != NULL ? propsp->data : NULL); | |
100 | ||
101 | EVP_CIPHER_free(ctx->sc.cipher); | |
102 | ctx->sc.cipher_intent = p->data != NULL; | |
103 | if (p->data != NULL | |
104 | && ((ctx->sc.cipher = EVP_CIPHER_fetch(NULL, p->data, props)) | |
105 | == NULL)) | |
106 | return 0; | |
107 | } | |
108 | if ((p = OSSL_PARAM_locate_const(params, OSSL_SERIALIZER_PARAM_PASS)) | |
109 | != NULL) { | |
110 | OPENSSL_free(ctx->sc.cipher_pass); | |
111 | ctx->sc.cipher_pass = NULL; | |
112 | if (!OSSL_PARAM_get_octet_string(p, &ctx->sc.cipher_pass, 0, | |
113 | &ctx->sc.cipher_pass_length)) | |
114 | return 0; | |
115 | } | |
116 | return 1; | |
117 | } | |
118 | ||
119 | /* Private key : DER */ | |
120 | static int dh_priv_der_data(void *vctx, const OSSL_PARAM params[], BIO *out, | |
32b0645c | 121 | OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg) |
045e51cb RL |
122 | { |
123 | struct dh_priv_ctx_st *ctx = vctx; | |
32b0645c RL |
124 | OSSL_OP_keymgmt_new_fn *dh_new = ossl_prov_get_keymgmt_dh_new(); |
125 | OSSL_OP_keymgmt_free_fn *dh_free = ossl_prov_get_keymgmt_dh_free(); | |
126 | OSSL_OP_keymgmt_import_fn *dh_import = ossl_prov_get_keymgmt_dh_import(); | |
045e51cb RL |
127 | int ok = 0; |
128 | ||
32b0645c RL |
129 | if (dh_import != NULL) { |
130 | DH *dh; | |
045e51cb | 131 | |
32b0645c RL |
132 | if ((dh = dh_new(ctx->provctx)) != NULL |
133 | && dh_import(dh, OSSL_KEYMGMT_SELECT_KEYPAIR, params) | |
134 | && dh_priv_der(ctx, dh, out, cb, cbarg)) | |
135 | ok = 1; | |
136 | dh_free(dh); | |
045e51cb RL |
137 | } |
138 | return ok; | |
139 | } | |
140 | ||
141 | static int dh_priv_der(void *vctx, void *dh, BIO *out, | |
142 | OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg) | |
143 | { | |
144 | struct dh_priv_ctx_st *ctx = vctx; | |
145 | int ret; | |
146 | ||
147 | ctx->sc.cb = cb; | |
148 | ctx->sc.cbarg = cbarg; | |
149 | ||
150 | ret = ossl_prov_write_priv_der_from_obj(out, dh, EVP_PKEY_DH, | |
151 | ossl_prov_prepare_dh_params, | |
152 | ossl_prov_dh_priv_to_der, | |
153 | &ctx->sc); | |
154 | ||
155 | return ret; | |
156 | } | |
157 | ||
158 | /* Private key : PEM */ | |
159 | static int dh_pem_priv_data(void *vctx, const OSSL_PARAM params[], BIO *out, | |
32b0645c | 160 | OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg) |
045e51cb RL |
161 | { |
162 | struct dh_priv_ctx_st *ctx = vctx; | |
32b0645c RL |
163 | OSSL_OP_keymgmt_new_fn *dh_new = ossl_prov_get_keymgmt_dh_new(); |
164 | OSSL_OP_keymgmt_free_fn *dh_free = ossl_prov_get_keymgmt_dh_free(); | |
165 | OSSL_OP_keymgmt_import_fn *dh_import = ossl_prov_get_keymgmt_dh_import(); | |
045e51cb RL |
166 | int ok = 0; |
167 | ||
32b0645c RL |
168 | if (dh_import != NULL) { |
169 | DH *dh; | |
045e51cb | 170 | |
32b0645c RL |
171 | if ((dh = dh_new(ctx->provctx)) != NULL |
172 | && dh_import(dh, OSSL_KEYMGMT_SELECT_KEYPAIR, params) | |
173 | && dh_pem_priv(ctx->provctx, dh, out, cb, cbarg)) | |
174 | ok = 1; | |
175 | dh_free(dh); | |
045e51cb RL |
176 | } |
177 | return ok; | |
178 | } | |
179 | ||
180 | static int dh_pem_priv(void *vctx, void *dh, BIO *out, | |
32b0645c | 181 | OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg) |
045e51cb RL |
182 | { |
183 | struct dh_priv_ctx_st *ctx = vctx; | |
184 | int ret; | |
185 | ||
186 | ctx->sc.cb = cb; | |
187 | ctx->sc.cbarg = cbarg; | |
188 | ||
189 | ret = ossl_prov_write_priv_pem_from_obj(out, dh, EVP_PKEY_DH, | |
190 | ossl_prov_prepare_dh_params, | |
191 | ossl_prov_dh_priv_to_der, | |
192 | &ctx->sc); | |
193 | ||
194 | return ret; | |
195 | } | |
196 | ||
197 | /* | |
198 | * There's no specific print context, so we use the provider context | |
199 | */ | |
200 | static void *dh_print_newctx(void *provctx) | |
201 | { | |
202 | return provctx; | |
203 | } | |
204 | ||
205 | static void dh_print_freectx(void *ctx) | |
206 | { | |
207 | } | |
208 | ||
32b0645c RL |
209 | static int dh_priv_print_data(void *vctx, const OSSL_PARAM params[], BIO *out, |
210 | OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg) | |
045e51cb | 211 | { |
32b0645c RL |
212 | struct dh_priv_ctx_st *ctx = vctx; |
213 | OSSL_OP_keymgmt_new_fn *dh_new = ossl_prov_get_keymgmt_dh_new(); | |
214 | OSSL_OP_keymgmt_free_fn *dh_free = ossl_prov_get_keymgmt_dh_free(); | |
215 | OSSL_OP_keymgmt_import_fn *dh_import = ossl_prov_get_keymgmt_dh_import(); | |
045e51cb RL |
216 | int ok = 0; |
217 | ||
32b0645c RL |
218 | if (dh_import != NULL) { |
219 | DH *dh; | |
045e51cb | 220 | |
32b0645c RL |
221 | if ((dh = dh_new(ctx->provctx)) != NULL |
222 | && dh_import(dh, OSSL_KEYMGMT_SELECT_KEYPAIR, params) | |
223 | && dh_priv_print(ctx, dh, out, cb, cbarg)) | |
224 | ok = 1; | |
225 | dh_free(dh); | |
045e51cb RL |
226 | } |
227 | return ok; | |
228 | } | |
229 | ||
230 | static int dh_priv_print(void *ctx, void *dh, BIO *out, | |
32b0645c | 231 | OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg) |
045e51cb RL |
232 | { |
233 | return ossl_prov_print_dh(out, dh, dh_print_priv); | |
234 | } | |
235 | ||
236 | const OSSL_DISPATCH dh_priv_der_serializer_functions[] = { | |
237 | { OSSL_FUNC_SERIALIZER_NEWCTX, (void (*)(void))dh_priv_newctx }, | |
238 | { OSSL_FUNC_SERIALIZER_FREECTX, (void (*)(void))dh_priv_freectx }, | |
239 | { OSSL_FUNC_SERIALIZER_SET_CTX_PARAMS, | |
240 | (void (*)(void))dh_priv_set_ctx_params }, | |
241 | { OSSL_FUNC_SERIALIZER_SETTABLE_CTX_PARAMS, | |
242 | (void (*)(void))dh_priv_settable_ctx_params }, | |
243 | { OSSL_FUNC_SERIALIZER_SERIALIZE_DATA, (void (*)(void))dh_priv_der_data }, | |
244 | { OSSL_FUNC_SERIALIZER_SERIALIZE_OBJECT, (void (*)(void))dh_priv_der }, | |
245 | { 0, NULL } | |
246 | }; | |
247 | ||
248 | const OSSL_DISPATCH dh_priv_pem_serializer_functions[] = { | |
249 | { OSSL_FUNC_SERIALIZER_NEWCTX, (void (*)(void))dh_priv_newctx }, | |
250 | { OSSL_FUNC_SERIALIZER_FREECTX, (void (*)(void))dh_priv_freectx }, | |
251 | { OSSL_FUNC_SERIALIZER_SET_CTX_PARAMS, | |
252 | (void (*)(void))dh_priv_set_ctx_params }, | |
253 | { OSSL_FUNC_SERIALIZER_SETTABLE_CTX_PARAMS, | |
254 | (void (*)(void))dh_priv_settable_ctx_params }, | |
255 | { OSSL_FUNC_SERIALIZER_SERIALIZE_DATA, (void (*)(void))dh_pem_priv_data }, | |
256 | { OSSL_FUNC_SERIALIZER_SERIALIZE_OBJECT, (void (*)(void))dh_pem_priv }, | |
257 | { 0, NULL } | |
258 | }; | |
259 | ||
260 | const OSSL_DISPATCH dh_priv_text_serializer_functions[] = { | |
261 | { OSSL_FUNC_SERIALIZER_NEWCTX, (void (*)(void))dh_print_newctx }, | |
262 | { OSSL_FUNC_SERIALIZER_FREECTX, (void (*)(void))dh_print_freectx }, | |
263 | { OSSL_FUNC_SERIALIZER_SERIALIZE_OBJECT, (void (*)(void))dh_priv_print }, | |
264 | { OSSL_FUNC_SERIALIZER_SERIALIZE_DATA, | |
265 | (void (*)(void))dh_priv_print_data }, | |
266 | { 0, NULL } | |
267 | }; |