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3149baf8 AE |
1 | /* |
2 | * Written by Rob Stradling (rob@comodo.com) and Stephen Henson | |
3 | * (steve@openssl.org) for the OpenSSL project 2014. | |
4 | */ | |
5 | /* ==================================================================== | |
6 | * Copyright (c) 2014 The OpenSSL Project. All rights reserved. | |
7 | * | |
8 | * Redistribution and use in source and binary forms, with or without | |
9 | * modification, are permitted provided that the following conditions | |
10 | * are met: | |
11 | * | |
12 | * 1. Redistributions of source code must retain the above copyright | |
13 | * notice, this list of conditions and the following disclaimer. | |
14 | * | |
15 | * 2. Redistributions in binary form must reproduce the above copyright | |
16 | * notice, this list of conditions and the following disclaimer in | |
17 | * the documentation and/or other materials provided with the | |
18 | * distribution. | |
19 | * | |
20 | * 3. All advertising materials mentioning features or use of this | |
21 | * software must display the following acknowledgment: | |
22 | * "This product includes software developed by the OpenSSL Project | |
23 | * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" | |
24 | * | |
25 | * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to | |
26 | * endorse or promote products derived from this software without | |
27 | * prior written permission. For written permission, please contact | |
28 | * licensing@OpenSSL.org. | |
29 | * | |
30 | * 5. Products derived from this software may not be called "OpenSSL" | |
31 | * nor may "OpenSSL" appear in their names without prior written | |
32 | * permission of the OpenSSL Project. | |
33 | * | |
34 | * 6. Redistributions of any form whatsoever must retain the following | |
35 | * acknowledgment: | |
36 | * "This product includes software developed by the OpenSSL Project | |
37 | * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" | |
38 | * | |
39 | * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY | |
40 | * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
41 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
42 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR | |
43 | * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
44 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
45 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
46 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
47 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
48 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
49 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | |
50 | * OF THE POSSIBILITY OF SUCH DAMAGE. | |
51 | * ==================================================================== | |
52 | * | |
53 | * This product includes cryptographic software written by Eric Young | |
54 | * (eay@cryptsoft.com). This product includes software written by Tim | |
55 | * Hudson (tjh@cryptsoft.com). | |
56 | * | |
57 | */ | |
58 | ||
59 | #ifndef OPENSSL_NO_CT | |
60 | ||
61 | # include <limits.h> | |
62 | # include "internal/cryptlib.h" | |
3dc9589c | 63 | # include "../../ssl/ssl_locl.h" |
eb6d5f99 | 64 | # include "internal/ct_int.h" |
3149baf8 AE |
65 | |
66 | SCT *SCT_new(void) | |
67 | { | |
68 | SCT *sct = OPENSSL_zalloc(sizeof(SCT)); | |
69 | if (sct == NULL) { | |
70 | CTerr(CT_F_SCT_NEW, ERR_R_MALLOC_FAILURE); | |
71 | return NULL; | |
72 | } | |
73 | sct->entry_type = UNSET_ENTRY; | |
74 | sct->version = UNSET_VERSION; | |
75 | return sct; | |
76 | } | |
77 | ||
78 | void SCT_free(SCT *sct) | |
79 | { | |
5ad29c54 | 80 | if (sct != NULL) { |
3149baf8 AE |
81 | OPENSSL_free(sct->log_id); |
82 | OPENSSL_free(sct->ext); | |
83 | OPENSSL_free(sct->sig); | |
84 | OPENSSL_free(sct->sct); | |
85 | OPENSSL_free(sct); | |
86 | } | |
87 | } | |
88 | ||
89 | int SCT_set_version(SCT *sct, sct_version_t version) | |
90 | { | |
91 | if (version != SCT_V1) { | |
92 | CTerr(CT_F_SCT_SET_VERSION, CT_R_UNSUPPORTED_VERSION); | |
93 | return 0; | |
94 | } | |
95 | sct->version = version; | |
96 | return 1; | |
97 | } | |
98 | ||
99 | int SCT_set_log_entry_type(SCT *sct, log_entry_type_t entry_type) | |
100 | { | |
101 | if (entry_type != X509_ENTRY && entry_type != PRECERT_ENTRY) { | |
102 | CTerr(CT_F_SCT_SET_LOG_ENTRY_TYPE, CT_R_UNSUPPORTED_ENTRY_TYPE); | |
103 | return 0; | |
104 | } | |
105 | sct->entry_type = entry_type; | |
106 | return 1; | |
107 | } | |
108 | ||
109 | int SCT_set0_log_id(SCT *sct, unsigned char *log_id, size_t log_id_len) | |
110 | { | |
111 | /* Currently only SHA-256 allowed so length must be SCT_V1_HASHLEN */ | |
112 | if (log_id_len != SCT_V1_HASHLEN) { | |
113 | CTerr(CT_F_SCT_SET0_LOG_ID, CT_R_INVALID_LOG_ID_LENGTH); | |
114 | return 0; | |
115 | } | |
116 | OPENSSL_free(sct->log_id); | |
117 | sct->log_id = log_id; | |
118 | sct->log_id_len = log_id_len; | |
119 | return 1; | |
120 | } | |
121 | ||
5ad29c54 AE |
122 | int SCT_set1_log_id(SCT *sct, const unsigned char *log_id, size_t log_id_len) |
123 | { | |
124 | /* Currently only SHA-256 allowed so length must be SCT_V1_HASHLEN */ | |
125 | if (log_id_len != SCT_V1_HASHLEN) { | |
126 | CTerr(CT_F_SCT_SET1_LOG_ID, CT_R_INVALID_LOG_ID_LENGTH); | |
127 | return 0; | |
128 | } | |
129 | ||
130 | OPENSSL_free(sct->log_id); | |
131 | if (log_id == NULL || log_id_len == 0) { | |
132 | sct->log_id = NULL; | |
133 | } else { | |
134 | sct->log_id = OPENSSL_memdup(log_id, log_id_len); | |
135 | ||
136 | if (sct->log_id == NULL) { | |
137 | CTerr(CT_F_SCT_SET1_LOG_ID, ERR_R_MALLOC_FAILURE); | |
138 | return 0; | |
139 | } | |
140 | } | |
141 | ||
142 | sct->log_id_len = log_id_len; | |
143 | return 1; | |
144 | } | |
145 | ||
146 | ||
3149baf8 AE |
147 | void SCT_set_timestamp(SCT *sct, uint64_t timestamp) |
148 | { | |
149 | sct->timestamp = timestamp; | |
150 | } | |
151 | ||
152 | int SCT_set_signature_nid(SCT *sct, int nid) | |
153 | { | |
154 | switch (nid) { | |
155 | case NID_sha256WithRSAEncryption: | |
156 | sct->hash_alg = TLSEXT_hash_sha256; | |
157 | sct->sig_alg = TLSEXT_signature_rsa; | |
158 | return 1; | |
159 | case NID_ecdsa_with_SHA256: | |
160 | sct->hash_alg = TLSEXT_hash_sha256; | |
161 | sct->sig_alg = TLSEXT_signature_ecdsa; | |
162 | return 1; | |
163 | default: | |
164 | CTerr(CT_F_SCT_SET_SIGNATURE_NID, CT_R_UNRECOGNIZED_SIGNATURE_NID); | |
165 | return 0; | |
166 | } | |
167 | } | |
168 | ||
169 | void SCT_set0_extensions(SCT *sct, unsigned char *ext, size_t ext_len) | |
170 | { | |
171 | OPENSSL_free(sct->ext); | |
172 | sct->ext = ext; | |
173 | sct->ext_len = ext_len; | |
174 | } | |
175 | ||
5ad29c54 AE |
176 | int SCT_set1_extensions(SCT *sct, const unsigned char *ext, size_t ext_len) |
177 | { | |
178 | OPENSSL_free(sct->ext); | |
179 | sct->ext = NULL; | |
180 | sct->ext_len = 0; | |
181 | ||
182 | if (ext != NULL && ext_len > 0) { | |
183 | sct->ext = OPENSSL_memdup(ext, ext_len); | |
184 | if (sct->ext == NULL) { | |
185 | CTerr(CT_F_SCT_SET1_EXTENSIONS, ERR_R_MALLOC_FAILURE); | |
186 | return 0; | |
187 | } | |
188 | sct->ext_len = ext_len; | |
189 | } | |
190 | return 1; | |
191 | } | |
192 | ||
3149baf8 AE |
193 | void SCT_set0_signature(SCT *sct, unsigned char *sig, size_t sig_len) |
194 | { | |
195 | OPENSSL_free(sct->sig); | |
196 | sct->sig = sig; | |
197 | sct->sig_len = sig_len; | |
198 | } | |
199 | ||
5ad29c54 AE |
200 | int SCT_set1_signature(SCT *sct, const unsigned char *sig, size_t sig_len) |
201 | { | |
202 | OPENSSL_free(sct->sig); | |
203 | if (sig == NULL || sig_len == 0) { | |
204 | sct->sig = NULL; | |
205 | } else { | |
206 | sct->sig = OPENSSL_memdup(sig, sig_len); | |
207 | if (sct->sig == NULL) { | |
208 | CTerr(CT_F_SCT_SET1_SIGNATURE, ERR_R_MALLOC_FAILURE); | |
209 | return 0; | |
210 | } | |
211 | } | |
212 | sct->sig_len = sig_len; | |
213 | return 1; | |
214 | } | |
215 | ||
3149baf8 AE |
216 | sct_version_t SCT_get_version(const SCT *sct) |
217 | { | |
218 | return sct->version; | |
219 | } | |
220 | ||
221 | log_entry_type_t SCT_get_log_entry_type(const SCT *sct) | |
222 | { | |
223 | return sct->entry_type; | |
224 | } | |
225 | ||
226 | size_t SCT_get0_log_id(const SCT *sct, unsigned char **log_id) | |
227 | { | |
228 | *log_id = sct->log_id; | |
229 | return sct->log_id_len; | |
230 | } | |
231 | ||
232 | uint64_t SCT_get_timestamp(const SCT *sct) | |
233 | { | |
234 | return sct->timestamp; | |
235 | } | |
236 | ||
237 | int SCT_get_signature_nid(const SCT *sct) | |
238 | { | |
239 | if (sct->version == SCT_V1) { | |
240 | if (sct->hash_alg == TLSEXT_hash_sha256) { | |
241 | switch (sct->sig_alg) { | |
242 | case TLSEXT_signature_ecdsa: | |
243 | return NID_ecdsa_with_SHA256; | |
244 | case TLSEXT_signature_rsa: | |
245 | return NID_sha256WithRSAEncryption; | |
246 | default: | |
247 | return NID_undef; | |
248 | } | |
249 | } | |
250 | } | |
251 | return NID_undef; | |
252 | } | |
253 | ||
254 | size_t SCT_get0_extensions(const SCT *sct, unsigned char **ext) | |
255 | { | |
256 | *ext = sct->ext; | |
257 | return sct->ext_len; | |
258 | } | |
259 | ||
260 | size_t SCT_get0_signature(const SCT *sct, unsigned char **sig) | |
261 | { | |
262 | *sig = sct->sig; | |
263 | return sct->sig_len; | |
264 | } | |
265 | ||
5ad29c54 AE |
266 | int SCT_is_valid(const SCT *sct) |
267 | { | |
268 | switch (sct->version) { | |
269 | case UNSET_VERSION: | |
270 | return 0; | |
271 | case SCT_V1: | |
272 | return sct->log_id != NULL && SCT_signature_is_valid(sct); | |
273 | default: | |
274 | return sct->sct != NULL; /* Just need cached encoding */ | |
275 | } | |
276 | } | |
277 | ||
3149baf8 | 278 | #endif |