2 * Copyright 2019-2020 The OpenSSL Project Authors. All Rights Reserved.
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
11 * DSA low level APIs are deprecated for public use, but still ok for
14 #include "internal/deprecated.h"
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/dsa.h>
21 #include <openssl/types.h>
22 #include <openssl/params.h>
24 #include "prov/implementations.h"
25 #include "serializer_local.h"
27 static OSSL_OP_serializer_newctx_fn dsa_priv_newctx;
28 static OSSL_OP_serializer_freectx_fn dsa_priv_freectx;
29 static OSSL_OP_serializer_set_ctx_params_fn dsa_priv_set_ctx_params;
30 static OSSL_OP_serializer_settable_ctx_params_fn dsa_priv_settable_ctx_params;
31 static OSSL_OP_serializer_serialize_data_fn dsa_priv_der_data;
32 static OSSL_OP_serializer_serialize_object_fn dsa_priv_der;
33 static OSSL_OP_serializer_serialize_data_fn dsa_pem_priv_data;
34 static OSSL_OP_serializer_serialize_object_fn dsa_pem_priv;
36 static OSSL_OP_serializer_newctx_fn dsa_print_newctx;
37 static OSSL_OP_serializer_freectx_fn dsa_print_freectx;
38 static OSSL_OP_serializer_serialize_data_fn dsa_priv_print_data;
39 static OSSL_OP_serializer_serialize_object_fn dsa_priv_print;
42 * Context used for private key serialization.
44 struct dsa_priv_ctx_st {
47 struct pkcs8_encrypt_ctx_st sc;
50 /* Private key : context */
51 static void *dsa_priv_newctx(void *provctx)
53 struct dsa_priv_ctx_st *ctx = OPENSSL_zalloc(sizeof(*ctx));
56 ctx->provctx = provctx;
58 /* -1 is the "whatever" indicator, i.e. the PKCS8 library default PBE */
64 static void dsa_priv_freectx(void *vctx)
66 struct dsa_priv_ctx_st *ctx = vctx;
68 EVP_CIPHER_free(ctx->sc.cipher);
69 OPENSSL_free(ctx->sc.cipher_pass);
73 static const OSSL_PARAM *dsa_priv_settable_ctx_params(void)
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),
84 static int dsa_priv_set_ctx_params(void *vctx, const OSSL_PARAM params[])
86 struct dsa_priv_ctx_st *ctx = vctx;
89 if ((p = OSSL_PARAM_locate_const(params, OSSL_SERIALIZER_PARAM_CIPHER))
91 const OSSL_PARAM *propsp =
92 OSSL_PARAM_locate_const(params, OSSL_SERIALIZER_PARAM_PROPERTIES);
93 const char *props = NULL;
95 if (p->data_type != OSSL_PARAM_UTF8_STRING)
97 if (propsp != NULL && propsp->data_type != OSSL_PARAM_UTF8_STRING)
99 props = (propsp != NULL ? propsp->data : NULL);
101 EVP_CIPHER_free(ctx->sc.cipher);
102 ctx->sc.cipher_intent = p->data != NULL;
104 && ((ctx->sc.cipher = EVP_CIPHER_fetch(NULL, p->data, props))
108 if ((p = OSSL_PARAM_locate_const(params, OSSL_SERIALIZER_PARAM_PASS))
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))
119 /* Private key : DER */
120 static int dsa_priv_der_data(void *vctx, const OSSL_PARAM params[], BIO *out,
121 OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
123 struct dsa_priv_ctx_st *ctx = vctx;
124 OSSL_OP_keymgmt_new_fn *dsa_new = ossl_prov_get_keymgmt_dsa_new();
125 OSSL_OP_keymgmt_free_fn *dsa_free = ossl_prov_get_keymgmt_dsa_free();
126 OSSL_OP_keymgmt_import_fn *dsa_import = ossl_prov_get_keymgmt_dsa_import();
129 if (dsa_import != NULL) {
132 if ((dsa = dsa_new(ctx->provctx)) != NULL
133 && dsa_import(dsa, OSSL_KEYMGMT_SELECT_KEYPAIR, params)
134 && dsa_priv_der(ctx, dsa, out, cb, cbarg))
141 static int dsa_priv_der(void *vctx, void *dsa, BIO *out,
142 OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
144 struct dsa_priv_ctx_st *ctx = vctx;
147 ctx->sc.cbarg = cbarg;
149 return ossl_prov_write_priv_der_from_obj(out, dsa, EVP_PKEY_DSA,
150 ossl_prov_prepare_dsa_params,
151 ossl_prov_dsa_priv_to_der,
155 /* Private key : PEM */
156 static int dsa_pem_priv_data(void *vctx, const OSSL_PARAM params[], BIO *out,
157 OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
159 struct dsa_priv_ctx_st *ctx = vctx;
160 OSSL_OP_keymgmt_new_fn *dsa_new = ossl_prov_get_keymgmt_dsa_new();
161 OSSL_OP_keymgmt_free_fn *dsa_free = ossl_prov_get_keymgmt_dsa_free();
162 OSSL_OP_keymgmt_import_fn *dsa_import = ossl_prov_get_keymgmt_dsa_import();
165 if (dsa_import != NULL) {
168 if ((dsa = dsa_new(ctx->provctx)) != NULL
169 && dsa_import(dsa, OSSL_KEYMGMT_SELECT_KEYPAIR, params)
170 && dsa_pem_priv(ctx, dsa, out, cb, cbarg))
177 static int dsa_pem_priv(void *vctx, void *dsa, BIO *out,
178 OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
180 struct dsa_priv_ctx_st *ctx = vctx;
183 ctx->sc.cbarg = cbarg;
185 return ossl_prov_write_priv_pem_from_obj(out, dsa, EVP_PKEY_DSA,
186 ossl_prov_prepare_dsa_params,
187 ossl_prov_dsa_priv_to_der,
192 * There's no specific print context, so we use the provider context
194 static void *dsa_print_newctx(void *provctx)
199 static void dsa_print_freectx(void *ctx)
203 static int dsa_priv_print_data(void *vctx, const OSSL_PARAM params[],
205 OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
207 struct dsa_priv_ctx_st *ctx = vctx;
208 OSSL_OP_keymgmt_new_fn *dsa_new = ossl_prov_get_keymgmt_dsa_new();
209 OSSL_OP_keymgmt_free_fn *dsa_free = ossl_prov_get_keymgmt_dsa_free();
210 OSSL_OP_keymgmt_import_fn *dsa_import = ossl_prov_get_keymgmt_dsa_import();
213 if (dsa_import != NULL) {
216 if ((dsa = dsa_new(ctx->provctx)) != NULL
217 && dsa_import(dsa, OSSL_KEYMGMT_SELECT_KEYPAIR, params)
218 && dsa_priv_print(ctx, dsa, out, cb, cbarg))
225 static int dsa_priv_print(void *ctx, void *dsa, BIO *out,
226 OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg)
228 return ossl_prov_print_dsa(out, dsa, dsa_print_priv);
231 const OSSL_DISPATCH dsa_priv_der_serializer_functions[] = {
232 { OSSL_FUNC_SERIALIZER_NEWCTX, (void (*)(void))dsa_priv_newctx },
233 { OSSL_FUNC_SERIALIZER_FREECTX, (void (*)(void))dsa_priv_freectx },
234 { OSSL_FUNC_SERIALIZER_SET_CTX_PARAMS,
235 (void (*)(void))dsa_priv_set_ctx_params },
236 { OSSL_FUNC_SERIALIZER_SETTABLE_CTX_PARAMS,
237 (void (*)(void))dsa_priv_settable_ctx_params },
238 { OSSL_FUNC_SERIALIZER_SERIALIZE_DATA, (void (*)(void))dsa_priv_der_data },
239 { OSSL_FUNC_SERIALIZER_SERIALIZE_OBJECT, (void (*)(void))dsa_priv_der },
243 const OSSL_DISPATCH dsa_priv_pem_serializer_functions[] = {
244 { OSSL_FUNC_SERIALIZER_NEWCTX, (void (*)(void))dsa_priv_newctx },
245 { OSSL_FUNC_SERIALIZER_FREECTX, (void (*)(void))dsa_priv_freectx },
246 { OSSL_FUNC_SERIALIZER_SET_CTX_PARAMS,
247 (void (*)(void))dsa_priv_set_ctx_params },
248 { OSSL_FUNC_SERIALIZER_SETTABLE_CTX_PARAMS,
249 (void (*)(void))dsa_priv_settable_ctx_params },
250 { OSSL_FUNC_SERIALIZER_SERIALIZE_DATA, (void (*)(void))dsa_pem_priv_data },
251 { OSSL_FUNC_SERIALIZER_SERIALIZE_OBJECT, (void (*)(void))dsa_pem_priv },
255 const OSSL_DISPATCH dsa_priv_text_serializer_functions[] = {
256 { OSSL_FUNC_SERIALIZER_NEWCTX, (void (*)(void))dsa_print_newctx },
257 { OSSL_FUNC_SERIALIZER_FREECTX, (void (*)(void))dsa_print_freectx },
258 { OSSL_FUNC_SERIALIZER_SERIALIZE_OBJECT, (void (*)(void))dsa_priv_print },
259 { OSSL_FUNC_SERIALIZER_SERIALIZE_DATA,
260 (void (*)(void))dsa_priv_print_data },