1 /* $OpenBSD: cmstest.c,v 1.8 2024/03/29 06:42:42 tb Exp $ */
2 /*
3 * Copyright (c) 2019 Joel Sing <jsing@openbsd.org>
4 *
5 * Permission to use, copy, modify, and distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
8 *
9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16 */
17
18 #include <err.h>
19 #include <string.h>
20
21 #include <openssl/bio.h>
22 #include <openssl/err.h>
23 #include <openssl/pem.h>
24 #include <openssl/x509.h>
25
26 #include <openssl/cms.h>
27
28 static int verbose = 0;
29
30 static const char cms_msg[] = "Hello CMS!\r\n";
31
32 static const char cms_ca_1[] =
33 "-----BEGIN CERTIFICATE-----\n"
34 "MIICqDCCAZACCQD8ebR8e4kdvjANBgkqhkiG9w0BAQsFADAWMRQwEgYDVQQDDAtU\n"
35 "ZXN0IENNUyBDQTAeFw0xOTA1MTExNTUzNTNaFw0yOTA1MDgxNTUzNTNaMBYxFDAS\n"
36 "BgNVBAMMC1Rlc3QgQ01TIENBMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKC\n"
37 "AQEAoIiW3POGYfhY0BEgG8mIwouOI917M72jsuUE57ccjEXLWseItLb7r9vkiwW/\n"
38 "FYbz0UYkJW1JgpZmWaTGOgZGxj+WTzxh1aq7OHyJb6Pxwp9wGrGJu+BEqOZN/bi/\n"
39 "aQ1l8x7DxVJkFeI1+4QKDfmGYfWoVzQLgamO3u0vxz3Vi/XzX01ZomcZUYYx0lIq\n"
40 "hxAO665HoPUmecqYdLPquJNxdfiy37ieLJOmIsKZJtMcCZAxqhcCwE7I0196Ng3P\n"
41 "fK9Sl7BCyTBszb2YC2qOleuI2Wjg/7o1+hugopUkjxz0RGFu5s3K9PhCLwpqylXg\n"
42 "IXe9Vwi38gKawD3yjtDBRDNmIwIDAQABMA0GCSqGSIb3DQEBCwUAA4IBAQAvsvtc\n"
43 "cO0Eo0F6MvB0bjBIMHBkKyWcmD2c5gVFhbHyRD+XBVXNdn5CcBba2amm0VgShBpM\n"
44 "4e1rOtIH/Hf6nB3c/EjZvd16ryoTCTvzayac7sD2Y8IxF1JIAKvjFbu+LmzM/F5f\n"
45 "x3/WdY1qs5W7lO46i8xmSUAP88gohWP4cyVUAITNrh/RSOFaWUd5i1/vZ+iEexLI\n"
46 "rQWsweJleOxvA8SrXm2gAkqRWEncsxOrsX/MsPl7iJoebLhWbS3cOHhutWrfhdlC\n"
47 "2uT6K7SA9rn6qqmvI6mLkHJQpqq++Py2UTDo1u8VKa3ieYNUN070kgxpYiVBGs3L\n"
48 "aaACIcEs48gnTRWc\n"
49 "-----END CERTIFICATE-----\n";
50
51 static const char cms_cert_1[] =
52 "-----BEGIN CERTIFICATE-----\n"
53 "MIICpDCCAYwCAQMwDQYJKoZIhvcNAQEFBQAwFjEUMBIGA1UEAwwLVGVzdCBDTVMg\n"
54 "Q0EwHhcNMTkwNTExMTU1MzU0WhcNMjkwNTA4MTU1MzU0WjAaMRgwFgYDVQQDDA9U\n"
55 "ZXN0IENNUyBDZXJ0IDEwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQDD\n"
56 "MLSuy+tc0AwfrlszgHJ3z7UEpJSn5mcKxquFnEC5DtchgQJ+cj5VFvB9A9G98ykQ\n"
57 "0IrHXNUTbS2yvf8ac1PlocuA8ggeDK4gPHCe097j0nUphhT0VzhwwFfP6Uo6VaR8\n"
58 "B7Qb3zFTz64bN66V89etZ5NQJKMdrh4oOh5nfxLKvCcTK+9U4ZrgeGVdVXmL6HJp\n"
59 "3m9CPobCBsC8DgI+zF/tg4GjDoVCJd6Tv5MRAmKiBrzTGglVeknkgiyIZ9C7gXU/\n"
60 "7NMUihmLlt+80zr+nL0P+MA924WV4fZJi1wtf6Eioalq6n/9i93nBRCeu8bEOBrT\n"
61 "pAre2oBEoULIJu7Ubx79AgMBAAEwDQYJKoZIhvcNAQEFBQADggEBADnLc6ZzApHq\n"
62 "Z8l4zrFKAG/O/oULPMRTA8/zXNQ60BMV10hVtTCxVNq59d48wEljuUOGLfM91rhj\n"
63 "gId8AOlsQbfRZE94DxlcaaAXaEjbkVSke56yfdLd4NqkIWrXGrFlbepj4b4ORAHh\n"
64 "85kPwDEDnpMgQ63LqNX3gru3xf2AGIa1Fck2ISkVafqW5TH0Y6dCeGGFTtnH/QUT\n"
65 "ofTm8uQ2vG9ERn+C1ooqJ2dyAckXFdmCcpor26vO/ZssMEKSee38ZNWR/01LEkOG\n"
66 "G0+AL7E1mJdlVOtp3DDFN0hoNY7PbVuuzT+mrAwGLhCp2jnf68iNdrIuDdIE6yvi\n"
67 "6WWvmmz+rC0=\n"
68 "-----END CERTIFICATE-----\n";
69
70 static const char cms_key_1[] =
71 "-----BEGIN PRIVATE KEY-----\n"
72 "MIIEvgIBADANBgkqhkiG9w0BAQEFAASCBKgwggSkAgEAAoIBAQDDMLSuy+tc0Awf\n"
73 "rlszgHJ3z7UEpJSn5mcKxquFnEC5DtchgQJ+cj5VFvB9A9G98ykQ0IrHXNUTbS2y\n"
74 "vf8ac1PlocuA8ggeDK4gPHCe097j0nUphhT0VzhwwFfP6Uo6VaR8B7Qb3zFTz64b\n"
75 "N66V89etZ5NQJKMdrh4oOh5nfxLKvCcTK+9U4ZrgeGVdVXmL6HJp3m9CPobCBsC8\n"
76 "DgI+zF/tg4GjDoVCJd6Tv5MRAmKiBrzTGglVeknkgiyIZ9C7gXU/7NMUihmLlt+8\n"
77 "0zr+nL0P+MA924WV4fZJi1wtf6Eioalq6n/9i93nBRCeu8bEOBrTpAre2oBEoULI\n"
78 "Ju7Ubx79AgMBAAECggEAD4XkGLKm+S6iiDJ5llL0x4qBPulH2UJ9l2HNakbO7ui7\n"
79 "OzLjW+MCCgpU/dw75ftcnLW5E7nSSEU6iSiLDTN2zKBdatfUxW8EuhOUcU0wQLYQ\n"
80 "E0lSiUwWdQEW+rX27US6XBLQxBav+ZZeplN7UvmdgXDnSkxfnJCoXVKh8GEuwWip\n"
81 "sM/Lwg8MSZK0o5qFVXtPp7kreB8CWlVyPYW5rDYy3k02R1t9k6WSdO2foPXe9rdZ\n"
82 "iiThkALcHdBcFF0NHrIkAgMdtcAxkDIwO2kOnGJQKDXu+txbzPYodMU0Z6eVnlIu\n"
83 "jh9ZjnZKBJgX6YVLVPRBwQXHXeGAnvMNm2WXH7SCAQKBgQDmMxvspc3K6HOqMoik\n"
84 "59Rq1gXIuaGH0uSMSiUMTkr4laJbh9WgZ6JTAfIPuhj1xKGfDK7LF9VjPQ104SgL\n"
85 "dCA1pV6nsuGS3j3vBnaMfmO7yr3yON+p/WDpKOgqC51Z3/pT8reJtMnyowQuDeYe\n"
86 "UVRVyeXA11nve0SSc97US4AtXQKBgQDZERtgs6ejiUJQXuflu9HDczEZ/pHfPI1y\n"
87 "+RU0tvI4860OTjerVJA2YBeOBLa9Y3hblvNpOU0SoVeMAGQLblEznJAl1nbaWqVY\n"
88 "kPgvtQcTOL/awEB90JklvSRqR82WJchMOHMG5SeqrpUx3Dg+cPH6nId0e8UCt3/U\n"
89 "W/u/5hP+IQKBgQDfReEmxaZ10MIm6P6p24Wm3dEcYBfxEjbEb0HBzspek1u3JWep\n"
90 "PfsuQavTXy/IaKBOENIUgBhjOZssqxnZChgXkD7frtulRNOTW5RuLkRzp3BWWJ1v\n"
91 "VifB3gBYj41d16UH+VnVQbnCEiUCuk5hR4bh8oJaaUV8xvW6ipItHNHErQKBgGoe\n"
92 "2uuj6UkiSbFRNL4z3JFZN6AlvNsOl3imHZ/v8Ou29dwQkVbJuNdckydzVoOwpZ7h\n"
93 "ZY8D3JJHHq3rYv3TqQ86c56MAv8tYbiy5yMrtZHIJMOlSeI4oSa6GZt8Dx5gylO5\n"
94 "JUMxtPrU70u5BiZAwYxsCi0AdYimfXAsqB9hNFUBAoGBAJPT7Xsr7NIkrbv+aYXj\n"
95 "rVVJ1qokUEKT6H1GmFXO3Fkw3kjPKS8VZloKOB7OiBC+AwMEQIflArCZ+PJdnVNO\n"
96 "48ntHnaeaZk8rKXsYdJsqMKgIxZYZuCIazZz9WHeYxn5vkH76Q3DrfqrneJ3HSU/\n"
97 "pFtLoXoGoVXRjAtpNvX7fh/G\n"
98 "-----END PRIVATE KEY-----\n";
99
100 const char cms_ca_2[] =
101 "-----BEGIN CERTIFICATE-----\n"
102 "MIIBvTCCAW+gAwIBAgIQHioe49U1R3LcahmTCOUmoTAFBgMrZXAwXTEUMBIGA1UE\n"
103 "ChMLQ01TIFRlc3QgQ0ExHTAbBgNVBAsMFGNtc3Rlc3RAbGlicmVzc2wub3JnMSYw\n"
104 "JAYDVQQDDB1DTVMgVGVzdCBjbXN0ZXN0QGxpYnJlc3NsLm9yZzAeFw0yMzEwMDkw\n"
105 "OTAzNDhaFw0zMzEwMDkwOTAzNDhaMF0xFDASBgNVBAoTC0NNUyBUZXN0IENBMR0w\n"
106 "GwYDVQQLDBRjbXN0ZXN0QGxpYnJlc3NsLm9yZzEmMCQGA1UEAwwdQ01TIFRlc3Qg\n"
107 "Y21zdGVzdEBsaWJyZXNzbC5vcmcwKjAFBgMrZXADIQAYj6pY7cN0DnwmsYHVDLqJ\n"
108 "7/Futy5p4QJDKA/FSZ6+6KNFMEMwDgYDVR0PAQH/BAQDAgIEMBIGA1UdEwEB/wQI\n"
109 "MAYBAf8CAQAwHQYDVR0OBBYEFE7G7c7O2Vj79+Q786M7ssMd/lflMAUGAytlcANB\n"
110 "AOk+RHgs8D82saBM1nQMgIwEsNhYwbj3HhrRFDezYcnZeorBgiZTV3uQd2EndFdU\n"
111 "hcs4OYMCRorxqpUXX6EMtwQ=\n"
112 "-----END CERTIFICATE-----\n";
113
114 const char cms_cert_2[] =
115 "-----BEGIN CERTIFICATE-----\n"
116 "MIIB5DCCAZagAwIBAgIQevuGe7FBHIc2pnQ4b4dsIzAFBgMrZXAwXTEUMBIGA1UE\n"
117 "ChMLQ01TIFRlc3QgQ0ExHTAbBgNVBAsMFGNtc3Rlc3RAbGlicmVzc2wub3JnMSYw\n"
118 "JAYDVQQDDB1DTVMgVGVzdCBjbXN0ZXN0QGxpYnJlc3NsLm9yZzAeFw0yMzEwMDkw\n"
119 "OTAzNDhaFw0zMzEwMDkwOTAzNDhaMD4xHTAbBgNVBAoTFENNUyB0ZXN0IGNlcnRp\n"
120 "ZmljYXRlMR0wGwYDVQQLDBRjbXN0ZXN0QGxpYnJlc3NsLm9yZzAqMAUGAytlcAMh\n"
121 "AFH47Z54SuXMN+i5CCvMVUZJZzSYsDcRY+lPtc+J8h2ko4GKMIGHMA4GA1UdDwEB\n"
122 "/wQEAwIFoDAdBgNVHSUEFjAUBggrBgEFBQcDAQYIKwYBBQUHAwQwHwYDVR0jBBgw\n"
123 "FoAUTsbtzs7ZWPv35Dvzozuywx3+V+UwNQYDVR0RBC4wLIIUY21zdGVzdC5saWJy\n"
124 "ZXNzbC5vcmeBFGNtc3Rlc3RAbGlicmVzc2wub3JnMAUGAytlcANBAAEqYppowFjF\n"
125 "fTZhNM3cIyFfmQthJV/+krEE2VTSoKgCokll+fXz1K9P+R3asgrVDoHjnBtvksIE\n"
126 "wup36c05XQA=\n"
127 "-----END CERTIFICATE-----\n";
128
129 const char cms_key_2[] =
130 "-----BEGIN PRIVATE KEY-----\n"
131 "MC4CAQAwBQYDK2VwBCIEIO88YApnGRDewzSwtxAnBvhlTPz9MjSz51mEpE2oi+9g\n"
132 "-----END PRIVATE KEY-----\n";
133
134 static void
hexdump(const unsigned char * buf,size_t len)135 hexdump(const unsigned char *buf, size_t len)
136 {
137 size_t i;
138
139 for (i = 1; i <= len; i++)
140 fprintf(stderr, " 0x%02x,%s", buf[i - 1], i % 8 ? "" : "\n");
141 if (len % 8 != 0)
142 fprintf(stderr, "\n");
143 }
144
145 static int
test_cms_encrypt_decrypt(void)146 test_cms_encrypt_decrypt(void)
147 {
148 STACK_OF(X509) *certs = NULL;
149 CMS_ContentInfo *ci = NULL;
150 EVP_PKEY *pkey = NULL;
151 BIO *bio_mem = NULL;
152 BIO *bio_out = NULL;
153 X509 *cert = NULL;
154 size_t len;
155 long mem_len;
156 char *p;
157 int failed = 1;
158
159 if ((bio_out = BIO_new_fp(stdout, BIO_NOCLOSE)) == NULL)
160 errx(1, "failed to create BIO");
161
162 if ((certs = sk_X509_new_null()) == NULL)
163 errx(1, "failed to create certs");
164 if ((bio_mem = BIO_new_mem_buf(cms_cert_1, -1)) == NULL)
165 errx(1, "failed to create BIO for cert");
166 if ((cert = PEM_read_bio_X509(bio_mem, NULL, NULL, NULL)) == NULL)
167 errx(1, "failed to read cert");
168 if (!sk_X509_push(certs, cert))
169 errx(1, "failed to push cert");
170
171 BIO_free(bio_mem);
172 if ((bio_mem = BIO_new_mem_buf(cms_key_1, -1)) == NULL)
173 errx(1, "failed to create BIO for key");
174 if ((pkey = PEM_read_bio_PrivateKey(bio_mem, NULL, NULL, NULL)) == NULL)
175 errx(1, "failed to read key");
176
177 BIO_free(bio_mem);
178 if ((bio_mem = BIO_new_mem_buf(cms_msg, -1)) == NULL)
179 errx(1, "failed to create BIO for message");
180
181 if ((ci = CMS_encrypt(certs, bio_mem, EVP_aes_256_cbc(), 0)) == NULL) {
182 fprintf(stderr, "FAIL: CMS_encrypt returned NULL\n");
183 ERR_print_errors_fp(stderr);
184 goto failure;
185 }
186
187 if (verbose) {
188 if (!CMS_ContentInfo_print_ctx(bio_out, ci, 0, NULL))
189 errx(1, "failed to print CMS ContentInfo");
190 if (!PEM_write_bio_CMS(bio_out, ci))
191 errx(1, "failed to print CMS PEM");
192 }
193
194 BIO_free(bio_mem);
195 if ((bio_mem = BIO_new(BIO_s_mem())) == NULL)
196 errx(1, "failed to create BIO for message");
197
198 if (!CMS_decrypt(ci, pkey, cert, NULL, bio_mem, 0)) {
199 fprintf(stderr, "FAIL: CMS_decrypt failed\n");
200 ERR_print_errors_fp(stderr);
201 goto failure;
202 }
203
204 if ((mem_len = BIO_get_mem_data(bio_mem, &p)) <= 0) {
205 fprintf(stderr, "FAIL: BIO_get_mem_data returned %ld\n",
206 mem_len);
207 goto failure;
208 }
209 if ((len = strlen(cms_msg)) != (size_t)mem_len) {
210 fprintf(stderr, "FAIL: CMS decrypt returned %ld bytes, "
211 "want %zu bytes\n", mem_len, len);
212 fprintf(stderr, "Got CMS data:\n");
213 hexdump(p, mem_len);
214 fprintf(stderr, "Want CMS data:\n");
215 hexdump(cms_msg, len);
216 goto failure;
217 }
218 if (memcmp(p, cms_msg, len) != 0) {
219 fprintf(stderr, "FAIL: CMS decrypt message differs");
220 fprintf(stderr, "Got CMS data:\n");
221 hexdump(p, mem_len);
222 fprintf(stderr, "Want CMS data:\n");
223 hexdump(cms_msg, len);
224 goto failure;
225 }
226
227 failed = 0;
228
229 failure:
230 BIO_free(bio_mem);
231 BIO_free(bio_out);
232 CMS_ContentInfo_free(ci);
233 EVP_PKEY_free(pkey);
234 sk_X509_free(certs);
235 X509_free(cert);
236
237 return failed;
238 }
239
240 static int
test_cms_sign_verify(const char * ca_pem,const char * cert_pem,const char * key_pem)241 test_cms_sign_verify(const char *ca_pem, const char *cert_pem,
242 const char *key_pem)
243 {
244 STACK_OF(X509) *certs = NULL;
245 CMS_ContentInfo *ci = NULL;
246 X509_STORE *store = NULL;
247 EVP_PKEY *pkey = NULL;
248 BIO *bio_mem = NULL;
249 BIO *bio_out = NULL;
250 X509 *cert = NULL;
251 X509 *ca = NULL;
252 size_t len;
253 long mem_len;
254 char *p;
255 int failed = 1;
256
257 if ((bio_out = BIO_new_fp(stdout, BIO_NOCLOSE)) == NULL)
258 errx(1, "failed to create BIO");
259
260 if ((certs = sk_X509_new_null()) == NULL)
261 errx(1, "failed to create certs");
262 if ((bio_mem = BIO_new_mem_buf(cert_pem, -1)) == NULL)
263 errx(1, "failed to create BIO for cert");
264 if ((cert = PEM_read_bio_X509(bio_mem, NULL, NULL, NULL)) == NULL)
265 errx(1, "failed to read cert");
266 if (!sk_X509_push(certs, cert))
267 errx(1, "failed to push cert");
268
269 BIO_free(bio_mem);
270 if ((bio_mem = BIO_new_mem_buf(ca_pem, -1)) == NULL)
271 errx(1, "failed to create BIO for cert");
272 if ((ca = PEM_read_bio_X509(bio_mem, NULL, NULL, NULL)) == NULL)
273 errx(1, "failed to read cert");
274 if ((store = X509_STORE_new()) == NULL)
275 errx(1, "failed to create X509 store");
276 if (!X509_STORE_add_cert(store, ca))
277 errx(1, "failed to add cert to store");
278
279 BIO_free(bio_mem);
280 if ((bio_mem = BIO_new_mem_buf(key_pem, -1)) == NULL)
281 errx(1, "failed to create BIO for key");
282 if ((pkey = PEM_read_bio_PrivateKey(bio_mem, NULL, NULL, NULL)) == NULL)
283 errx(1, "failed to read key");
284
285 BIO_free(bio_mem);
286 if ((bio_mem = BIO_new_mem_buf(cms_msg, -1)) == NULL)
287 errx(1, "failed to create BIO for message");
288
289 if ((ci = CMS_sign(cert, pkey, NULL, bio_mem, 0)) == NULL) {
290 fprintf(stderr, "FAIL: CMS sign failed\n");
291 ERR_print_errors_fp(stderr);
292 goto failure;
293 }
294
295 if (verbose) {
296 if (!CMS_ContentInfo_print_ctx(bio_out, ci, 0, NULL))
297 errx(1, "failed to print CMS ContentInfo");
298 if (!PEM_write_bio_CMS(bio_out, ci))
299 errx(1, "failed to print CMS PEM");
300 }
301
302 BIO_free(bio_mem);
303 if ((bio_mem = BIO_new(BIO_s_mem())) == NULL)
304 errx(1, "failed to create BIO for message");
305
306 if (!CMS_verify(ci, certs, store, NULL, bio_mem, 0)) {
307 fprintf(stderr, "FAIL: CMS_verify failed\n");
308 ERR_print_errors_fp(stderr);
309 goto failure;
310 }
311
312 if ((mem_len = BIO_get_mem_data(bio_mem, &p)) <= 0) {
313 fprintf(stderr, "FAIL: BIO_get_mem_data returned %ld\n",
314 mem_len);
315 goto failure;
316 }
317 if ((len = strlen(cms_msg)) != (size_t)mem_len) {
318 fprintf(stderr, "FAIL: CMS verify returned %ld bytes, "
319 "want %zu bytes\n", mem_len, len);
320 fprintf(stderr, "Got CMS data:\n");
321 hexdump(p, mem_len);
322 fprintf(stderr, "Want CMS data:\n");
323 hexdump(cms_msg, len);
324 goto failure;
325 }
326 if (memcmp(p, cms_msg, len) != 0) {
327 fprintf(stderr, "FAIL: CMS verify message differs");
328 fprintf(stderr, "Got CMS data:\n");
329 hexdump(p, mem_len);
330 fprintf(stderr, "Want CMS data:\n");
331 hexdump(cms_msg, len);
332 goto failure;
333 }
334
335 failed = 0;
336
337 failure:
338 BIO_free(bio_mem);
339 BIO_free(bio_out);
340 CMS_ContentInfo_free(ci);
341 EVP_PKEY_free(pkey);
342 sk_X509_free(certs);
343 X509_free(cert);
344 X509_STORE_free(store);
345 X509_free(ca);
346
347 return failed;
348 }
349
350 int
main(int argc,char ** argv)351 main(int argc, char **argv)
352 {
353 int failed = 0;
354
355 ERR_load_crypto_strings();
356
357 failed |= test_cms_encrypt_decrypt();
358 failed |= test_cms_sign_verify(cms_ca_1, cms_cert_1, cms_key_1);
359 failed |= test_cms_sign_verify(cms_ca_2, cms_cert_2, cms_key_2);
360
361 return failed;
362 }
363