]>
Commit | Line | Data |
---|---|---|
677add38 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 | ||
10 | #include <openssl/core_numbers.h> | |
11 | #include <openssl/core_names.h> | |
12 | #include <openssl/err.h> | |
13 | #include <openssl/pem.h> | |
14 | #include <openssl/rsa.h> | |
15 | #include <openssl/types.h> | |
16 | #include <openssl/params.h> | |
17 | #include <openssl/safestack.h> | |
18 | #include "prov/bio.h" | |
19 | #include "prov/implementations.h" | |
20 | #include "prov/providercommonerr.h" | |
21 | #include "serializer_local.h" | |
22 | ||
23 | static OSSL_OP_serializer_newctx_fn rsa_priv_newctx; | |
24 | static OSSL_OP_serializer_freectx_fn rsa_priv_freectx; | |
25 | static OSSL_OP_serializer_set_ctx_params_fn rsa_priv_set_ctx_params; | |
26 | static OSSL_OP_serializer_settable_ctx_params_fn rsa_priv_settable_ctx_params; | |
27 | static OSSL_OP_serializer_serialize_data_fn rsa_priv_der_data; | |
28 | static OSSL_OP_serializer_serialize_object_fn rsa_priv_der; | |
29 | static OSSL_OP_serializer_serialize_data_fn rsa_pem_priv_data; | |
30 | static OSSL_OP_serializer_serialize_object_fn rsa_pem_priv; | |
31 | ||
32 | static OSSL_OP_serializer_newctx_fn rsa_print_newctx; | |
33 | static OSSL_OP_serializer_freectx_fn rsa_print_freectx; | |
34 | static OSSL_OP_serializer_serialize_data_fn rsa_priv_print_data; | |
35 | static OSSL_OP_serializer_serialize_object_fn rsa_priv_print; | |
36 | ||
37 | /* | |
38 | * Context used for private key serialization. | |
39 | */ | |
40 | struct rsa_priv_ctx_st { | |
41 | void *provctx; | |
42 | ||
43 | struct pkcs8_encrypt_ctx_st sc; | |
44 | }; | |
45 | ||
46 | /* Helper functions to prepare RSA-PSS params for serialization */ | |
47 | ||
48 | static int prepare_rsa_params(const void *rsa, int nid, | |
49 | ASN1_STRING **pstr, int *pstrtype) | |
50 | { | |
51 | const RSA_PSS_PARAMS *pss = RSA_get0_pss_params(rsa); | |
52 | *pstr = NULL; | |
53 | ||
54 | /* If RSA it's just NULL type */ | |
55 | if (nid != EVP_PKEY_RSA_PSS) { | |
56 | *pstrtype = V_ASN1_NULL; | |
57 | return 1; | |
58 | } | |
59 | /* If no PSS parameters we omit parameters entirely */ | |
60 | if (pss == NULL) { | |
61 | *pstrtype = V_ASN1_UNDEF; | |
62 | return 1; | |
63 | } | |
64 | /* Encode PSS parameters */ | |
65 | if (ASN1_item_pack((void *)pss, ASN1_ITEM_rptr(RSA_PSS_PARAMS), pstr) | |
66 | == NULL) | |
67 | return 0; | |
68 | ||
69 | *pstrtype = V_ASN1_SEQUENCE; | |
70 | return 1; | |
71 | } | |
72 | ||
73 | /* Private key : context */ | |
74 | static void *rsa_priv_newctx(void *provctx) | |
75 | { | |
76 | struct rsa_priv_ctx_st *ctx = OPENSSL_zalloc(sizeof(*ctx)); | |
77 | ||
78 | if (ctx != NULL) { | |
79 | ctx->provctx = provctx; | |
80 | } | |
81 | ||
82 | /* -1 is the "whatever" indicator, i.e. the PKCS8 library default PBE */ | |
83 | ctx->sc.pbe_nid = -1; | |
84 | ||
85 | return ctx; | |
86 | } | |
87 | ||
88 | static void rsa_priv_freectx(void *vctx) | |
89 | { | |
90 | struct rsa_priv_ctx_st *ctx = vctx; | |
91 | ||
92 | EVP_CIPHER_free(ctx->sc.cipher); | |
93 | OPENSSL_free(ctx->sc.cipher_pass); | |
94 | OPENSSL_free(ctx); | |
95 | } | |
96 | ||
97 | static const OSSL_PARAM *rsa_priv_settable_ctx_params(void) | |
98 | { | |
99 | static const OSSL_PARAM settables[] = { | |
100 | OSSL_PARAM_utf8_string(OSSL_SERIALIZER_PARAM_CIPHER, NULL, 0), | |
101 | OSSL_PARAM_octet_string(OSSL_SERIALIZER_PARAM_PASS, NULL, 0), | |
102 | OSSL_PARAM_END, | |
103 | }; | |
104 | ||
105 | return settables; | |
106 | } | |
107 | ||
108 | static int rsa_priv_set_ctx_params(void *vctx, const OSSL_PARAM params[]) | |
109 | { | |
110 | struct rsa_priv_ctx_st *ctx = vctx; | |
111 | const OSSL_PARAM *p; | |
112 | ||
113 | if ((p = OSSL_PARAM_locate_const(params, OSSL_SERIALIZER_PARAM_CIPHER)) | |
114 | != NULL) { | |
115 | const OSSL_PARAM *propsp = | |
116 | OSSL_PARAM_locate_const(params, OSSL_SERIALIZER_PARAM_PROPERTIES); | |
117 | const char *props = NULL; | |
118 | ||
119 | if (p->data_type != OSSL_PARAM_UTF8_STRING) | |
120 | return 0; | |
121 | if (propsp != NULL && propsp->data_type != OSSL_PARAM_UTF8_STRING) | |
122 | return 0; | |
123 | props = (propsp != NULL ? propsp->data : NULL); | |
124 | ||
125 | EVP_CIPHER_free(ctx->sc.cipher); | |
126 | ctx->sc.cipher_intent = p->data != NULL; | |
127 | if (p->data != NULL | |
128 | && ((ctx->sc.cipher = EVP_CIPHER_fetch(NULL, p->data, props)) | |
129 | == NULL)) | |
130 | return 0; | |
131 | } | |
132 | if ((p = OSSL_PARAM_locate_const(params, OSSL_SERIALIZER_PARAM_PASS)) | |
133 | != NULL) { | |
134 | OPENSSL_free(ctx->sc.cipher_pass); | |
135 | ctx->sc.cipher_pass = NULL; | |
136 | if (!OSSL_PARAM_get_octet_string(p, &ctx->sc.cipher_pass, 0, | |
137 | &ctx->sc.cipher_pass_length)) | |
138 | return 0; | |
139 | } | |
140 | return 1; | |
141 | } | |
142 | ||
143 | /* Private key : DER */ | |
144 | static int rsa_priv_der_data(void *vctx, const OSSL_PARAM params[], BIO *out, | |
145 | OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg) | |
146 | { | |
147 | struct rsa_priv_ctx_st *ctx = vctx; | |
148 | OSSL_OP_keymgmt_importkey_fn *rsa_importkey = | |
149 | ossl_prov_get_rsa_importkey(); | |
150 | int ok = 0; | |
151 | ||
152 | if (rsa_importkey != NULL) { | |
153 | RSA *rsa = rsa_importkey(ctx->provctx, params); | |
154 | ||
155 | ok = rsa_priv_der(vctx, rsa, out, cb, cbarg); | |
156 | RSA_free(rsa); | |
157 | } | |
158 | return ok; | |
159 | } | |
160 | ||
161 | static int rsa_priv_der(void *vctx, void *rsa, BIO *out, | |
162 | OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg) | |
163 | { | |
164 | struct rsa_priv_ctx_st *ctx = vctx; | |
165 | int ret; | |
166 | ||
167 | ctx->sc.cb = cb; | |
168 | ctx->sc.cbarg = cbarg; | |
169 | ||
170 | ret = ossl_prov_write_priv_der_from_obj(out, rsa, EVP_PKEY_RSA, | |
171 | prepare_rsa_params, | |
172 | (i2d_of_void *)i2d_RSAPrivateKey, | |
173 | &ctx->sc); | |
174 | ||
175 | return ret; | |
176 | } | |
177 | ||
178 | /* Private key : PEM */ | |
179 | static int rsa_pem_priv_data(void *vctx, const OSSL_PARAM params[], BIO *out, | |
180 | OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg) | |
181 | { | |
182 | struct rsa_priv_ctx_st *ctx = vctx; | |
183 | OSSL_OP_keymgmt_importkey_fn *rsa_importkey = | |
184 | ossl_prov_get_rsa_importkey(); | |
185 | int ok = 0; | |
186 | ||
187 | if (rsa_importkey != NULL) { | |
188 | RSA *rsa = rsa_importkey(ctx, params); | |
189 | ||
190 | ok = rsa_pem_priv(vctx, rsa, out, cb, cbarg); | |
191 | RSA_free(rsa); | |
192 | } | |
193 | return ok; | |
194 | } | |
195 | ||
196 | static int rsa_pem_priv(void *vctx, void *rsa, BIO *out, | |
197 | OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg) | |
198 | { | |
199 | struct rsa_priv_ctx_st *ctx = vctx; | |
200 | int ret; | |
201 | ||
202 | ctx->sc.cb = cb; | |
203 | ctx->sc.cbarg = cbarg; | |
204 | ||
205 | ret = ossl_prov_write_priv_pem_from_obj(out, rsa, EVP_PKEY_RSA, | |
206 | prepare_rsa_params, | |
207 | (i2d_of_void *)i2d_RSAPrivateKey, | |
208 | &ctx->sc); | |
209 | ||
210 | return ret; | |
211 | } | |
212 | ||
213 | /* | |
214 | * There's no specific print context, so we use the provider context | |
215 | */ | |
216 | static void *rsa_print_newctx(void *provctx) | |
217 | { | |
218 | return provctx; | |
219 | } | |
220 | ||
221 | static void rsa_print_freectx(void *ctx) | |
222 | { | |
223 | } | |
224 | ||
225 | static int rsa_priv_print_data(void *provctx, const OSSL_PARAM params[], | |
226 | BIO *out, | |
227 | OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg) | |
228 | { | |
229 | OSSL_OP_keymgmt_importkey_fn *rsa_importkey = | |
230 | ossl_prov_get_rsa_importkey(); | |
231 | int ok = 0; | |
232 | ||
233 | if (rsa_importkey != NULL) { | |
234 | RSA *rsa = rsa_importkey(provctx, params); /* ctx == provctx */ | |
235 | ||
236 | ok = rsa_priv_print(provctx, rsa, out, cb, cbarg); | |
237 | RSA_free(rsa); | |
238 | } | |
239 | return ok; | |
240 | } | |
241 | ||
242 | static int rsa_priv_print(void *ctx, void *rsa, BIO *out, | |
243 | OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg) | |
244 | { | |
245 | return ossl_prov_print_rsa(out, rsa, 1); | |
246 | } | |
247 | ||
248 | const OSSL_DISPATCH rsa_priv_der_serializer_functions[] = { | |
249 | { OSSL_FUNC_SERIALIZER_NEWCTX, (void (*)(void))rsa_priv_newctx }, | |
250 | { OSSL_FUNC_SERIALIZER_FREECTX, (void (*)(void))rsa_priv_freectx }, | |
251 | { OSSL_FUNC_SERIALIZER_SET_CTX_PARAMS, | |
252 | (void (*)(void))rsa_priv_set_ctx_params }, | |
253 | { OSSL_FUNC_SERIALIZER_SETTABLE_CTX_PARAMS, | |
254 | (void (*)(void))rsa_priv_settable_ctx_params }, | |
255 | { OSSL_FUNC_SERIALIZER_SERIALIZE_DATA, (void (*)(void))rsa_priv_der_data }, | |
256 | { OSSL_FUNC_SERIALIZER_SERIALIZE_OBJECT, (void (*)(void))rsa_priv_der }, | |
257 | { 0, NULL } | |
258 | }; | |
259 | ||
260 | const OSSL_DISPATCH rsa_priv_pem_serializer_functions[] = { | |
261 | { OSSL_FUNC_SERIALIZER_NEWCTX, (void (*)(void))rsa_priv_newctx }, | |
262 | { OSSL_FUNC_SERIALIZER_FREECTX, (void (*)(void))rsa_priv_freectx }, | |
263 | { OSSL_FUNC_SERIALIZER_SET_CTX_PARAMS, | |
264 | (void (*)(void))rsa_priv_set_ctx_params }, | |
265 | { OSSL_FUNC_SERIALIZER_SETTABLE_CTX_PARAMS, | |
266 | (void (*)(void))rsa_priv_settable_ctx_params }, | |
267 | { OSSL_FUNC_SERIALIZER_SERIALIZE_DATA, (void (*)(void))rsa_pem_priv_data }, | |
268 | { OSSL_FUNC_SERIALIZER_SERIALIZE_OBJECT, (void (*)(void))rsa_pem_priv }, | |
269 | { 0, NULL } | |
270 | }; | |
271 | ||
272 | const OSSL_DISPATCH rsa_priv_text_serializer_functions[] = { | |
273 | { OSSL_FUNC_SERIALIZER_NEWCTX, (void (*)(void))rsa_print_newctx }, | |
274 | { OSSL_FUNC_SERIALIZER_FREECTX, (void (*)(void))rsa_print_freectx }, | |
275 | { OSSL_FUNC_SERIALIZER_SERIALIZE_OBJECT, (void (*)(void))rsa_priv_print }, | |
276 | { OSSL_FUNC_SERIALIZER_SERIALIZE_DATA, | |
277 | (void (*)(void))rsa_priv_print_data }, | |
278 | { 0, NULL } | |
279 | }; |