1/*
2 * Copyright 1995-2016 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 <stdio.h>
11#include "internal/cryptlib.h"
12#include <openssl/buffer.h>
13#include <openssl/bn.h>
14#include <openssl/objects.h>
15#include <openssl/x509.h>
16#include <openssl/x509v3.h>
17#include "crypto/asn1.h"
18
19#ifndef OPENSSL_NO_STDIO
20int X509_print_fp(FILE *fp, X509 *x)
21{
22 return X509_print_ex_fp(fp, x, XN_FLAG_COMPAT, X509_FLAG_COMPAT);
23}
24
25int X509_print_ex_fp(FILE *fp, X509 *x, unsigned long nmflag,
26 unsigned long cflag)
27{
28 BIO *b;
29 int ret;
30
31 if ((b = BIO_new(BIO_s_file())) == NULL) {
32 X509err(X509_F_X509_PRINT_EX_FP, ERR_R_BUF_LIB);
33 return 0;
34 }
35 BIO_set_fp(b, fp, BIO_NOCLOSE);
36 ret = X509_print_ex(b, x, nmflag, cflag);
37 BIO_free(b);
38 return ret;
39}
40#endif
41
42int X509_print(BIO *bp, X509 *x)
43{
44 return X509_print_ex(bp, x, XN_FLAG_COMPAT, X509_FLAG_COMPAT);
45}
46
47int X509_print_ex(BIO *bp, X509 *x, unsigned long nmflags,
48 unsigned long cflag)
49{
50 long l;
51 int ret = 0, i;
52 char *m = NULL, mlch = ' ';
53 int nmindent = 0;
54 ASN1_INTEGER *bs;
55 EVP_PKEY *pkey = NULL;
56 const char *neg;
57
58 if ((nmflags & XN_FLAG_SEP_MASK) == XN_FLAG_SEP_MULTILINE) {
59 mlch = '\n';
60 nmindent = 12;
61 }
62
63 if (nmflags == X509_FLAG_COMPAT)
64 nmindent = 16;
65
66 if (!(cflag & X509_FLAG_NO_HEADER)) {
67 if (BIO_write(bp, "Certificate:\n", 13) <= 0)
68 goto err;
69 if (BIO_write(bp, " Data:\n", 10) <= 0)
70 goto err;
71 }
72 if (!(cflag & X509_FLAG_NO_VERSION)) {
73 l = X509_get_version(x);
74 if (l >= 0 && l <= 2) {
75 if (BIO_printf(bp, "%8sVersion: %ld (0x%lx)\n", "", l + 1, (unsigned long)l) <= 0)
76 goto err;
77 } else {
78 if (BIO_printf(bp, "%8sVersion: Unknown (%ld)\n", "", l) <= 0)
79 goto err;
80 }
81 }
82 if (!(cflag & X509_FLAG_NO_SERIAL)) {
83
84 if (BIO_write(bp, " Serial Number:", 22) <= 0)
85 goto err;
86
87 bs = X509_get_serialNumber(x);
88 if (bs->length <= (int)sizeof(long)) {
89 ERR_set_mark();
90 l = ASN1_INTEGER_get(bs);
91 ERR_pop_to_mark();
92 } else {
93 l = -1;
94 }
95 if (l != -1) {
96 unsigned long ul;
97 if (bs->type == V_ASN1_NEG_INTEGER) {
98 ul = 0 - (unsigned long)l;
99 neg = "-";
100 } else {
101 ul = l;
102 neg = "";
103 }
104 if (BIO_printf(bp, " %s%lu (%s0x%lx)\n", neg, ul, neg, ul) <= 0)
105 goto err;
106 } else {
107 neg = (bs->type == V_ASN1_NEG_INTEGER) ? " (Negative)" : "";
108 if (BIO_printf(bp, "\n%12s%s", "", neg) <= 0)
109 goto err;
110
111 for (i = 0; i < bs->length; i++) {
112 if (BIO_printf(bp, "%02x%c", bs->data[i],
113 ((i + 1 == bs->length) ? '\n' : ':')) <= 0)
114 goto err;
115 }
116 }
117
118 }
119
120 if (!(cflag & X509_FLAG_NO_SIGNAME)) {
121 const X509_ALGOR *tsig_alg = X509_get0_tbs_sigalg(x);
122
123 if (BIO_puts(bp, " ") <= 0)
124 goto err;
125 if (X509_signature_print(bp, tsig_alg, NULL) <= 0)
126 goto err;
127 }
128
129 if (!(cflag & X509_FLAG_NO_ISSUER)) {
130 if (BIO_printf(bp, " Issuer:%c", mlch) <= 0)
131 goto err;
132 if (X509_NAME_print_ex(bp, X509_get_issuer_name(x), nmindent, nmflags)
133 < 0)
134 goto err;
135 if (BIO_write(bp, "\n", 1) <= 0)
136 goto err;
137 }
138 if (!(cflag & X509_FLAG_NO_VALIDITY)) {
139 if (BIO_write(bp, " Validity\n", 17) <= 0)
140 goto err;
141 if (BIO_write(bp, " Not Before: ", 24) <= 0)
142 goto err;
143 if (!ASN1_TIME_print(bp, X509_get0_notBefore(x)))
144 goto err;
145 if (BIO_write(bp, "\n Not After : ", 25) <= 0)
146 goto err;
147 if (!ASN1_TIME_print(bp, X509_get0_notAfter(x)))
148 goto err;
149 if (BIO_write(bp, "\n", 1) <= 0)
150 goto err;
151 }
152 if (!(cflag & X509_FLAG_NO_SUBJECT)) {
153 if (BIO_printf(bp, " Subject:%c", mlch) <= 0)
154 goto err;
155 if (X509_NAME_print_ex
156 (bp, X509_get_subject_name(x), nmindent, nmflags) < 0)
157 goto err;
158 if (BIO_write(bp, "\n", 1) <= 0)
159 goto err;
160 }
161 if (!(cflag & X509_FLAG_NO_PUBKEY)) {
162 X509_PUBKEY *xpkey = X509_get_X509_PUBKEY(x);
163 ASN1_OBJECT *xpoid;
164 X509_PUBKEY_get0_param(&xpoid, NULL, NULL, NULL, xpkey);
165 if (BIO_write(bp, " Subject Public Key Info:\n", 33) <= 0)
166 goto err;
167 if (BIO_printf(bp, "%12sPublic Key Algorithm: ", "") <= 0)
168 goto err;
169 if (i2a_ASN1_OBJECT(bp, xpoid) <= 0)
170 goto err;
171 if (BIO_puts(bp, "\n") <= 0)
172 goto err;
173
174 pkey = X509_get0_pubkey(x);
175 if (pkey == NULL) {
176 BIO_printf(bp, "%12sUnable to load Public Key\n", "");
177 ERR_print_errors(bp);
178 } else {
179 EVP_PKEY_print_public(bp, pkey, 16, NULL);
180 }
181 }
182
183 if (!(cflag & X509_FLAG_NO_IDS)) {
184 const ASN1_BIT_STRING *iuid, *suid;
185 X509_get0_uids(x, &iuid, &suid);
186 if (iuid != NULL) {
187 if (BIO_printf(bp, "%8sIssuer Unique ID: ", "") <= 0)
188 goto err;
189 if (!X509_signature_dump(bp, iuid, 12))
190 goto err;
191 }
192 if (suid != NULL) {
193 if (BIO_printf(bp, "%8sSubject Unique ID: ", "") <= 0)
194 goto err;
195 if (!X509_signature_dump(bp, suid, 12))
196 goto err;
197 }
198 }
199
200 if (!(cflag & X509_FLAG_NO_EXTENSIONS))
201 X509V3_extensions_print(bp, "X509v3 extensions",
202 X509_get0_extensions(x), cflag, 8);
203
204 if (!(cflag & X509_FLAG_NO_SIGDUMP)) {
205 const X509_ALGOR *sig_alg;
206 const ASN1_BIT_STRING *sig;
207 X509_get0_signature(&sig, &sig_alg, x);
208 if (X509_signature_print(bp, sig_alg, sig) <= 0)
209 goto err;
210 }
211 if (!(cflag & X509_FLAG_NO_AUX)) {
212 if (!X509_aux_print(bp, x, 0))
213 goto err;
214 }
215 ret = 1;
216 err:
217 OPENSSL_free(m);
218 return ret;
219}
220
221int X509_ocspid_print(BIO *bp, X509 *x)
222{
223 unsigned char *der = NULL;
224 unsigned char *dertmp;
225 int derlen;
226 int i;
227 unsigned char SHA1md[SHA_DIGEST_LENGTH];
228 ASN1_BIT_STRING *keybstr;
229 X509_NAME *subj;
230
231 /*
232 * display the hash of the subject as it would appear in OCSP requests
233 */
234 if (BIO_printf(bp, " Subject OCSP hash: ") <= 0)
235 goto err;
236 subj = X509_get_subject_name(x);
237 derlen = i2d_X509_NAME(subj, NULL);
238 if ((der = dertmp = OPENSSL_malloc(derlen)) == NULL)
239 goto err;
240 i2d_X509_NAME(subj, &dertmp);
241
242 if (!EVP_Digest(der, derlen, SHA1md, NULL, EVP_sha1(), NULL))
243 goto err;
244 for (i = 0; i < SHA_DIGEST_LENGTH; i++) {
245 if (BIO_printf(bp, "%02X", SHA1md[i]) <= 0)
246 goto err;
247 }
248 OPENSSL_free(der);
249 der = NULL;
250
251 /*
252 * display the hash of the public key as it would appear in OCSP requests
253 */
254 if (BIO_printf(bp, "\n Public key OCSP hash: ") <= 0)
255 goto err;
256
257 keybstr = X509_get0_pubkey_bitstr(x);
258
259 if (keybstr == NULL)
260 goto err;
261
262 if (!EVP_Digest(ASN1_STRING_get0_data(keybstr),
263 ASN1_STRING_length(keybstr), SHA1md, NULL, EVP_sha1(),
264 NULL))
265 goto err;
266 for (i = 0; i < SHA_DIGEST_LENGTH; i++) {
267 if (BIO_printf(bp, "%02X", SHA1md[i]) <= 0)
268 goto err;
269 }
270 BIO_printf(bp, "\n");
271
272 return 1;
273 err:
274 OPENSSL_free(der);
275 return 0;
276}
277
278int X509_signature_dump(BIO *bp, const ASN1_STRING *sig, int indent)
279{
280 const unsigned char *s;
281 int i, n;
282
283 n = sig->length;
284 s = sig->data;
285 for (i = 0; i < n; i++) {
286 if ((i % 18) == 0) {
287 if (i > 0 && BIO_write(bp, "\n", 1) <= 0)
288 return 0;
289 if (BIO_indent(bp, indent, indent) <= 0)
290 return 0;
291 }
292 if (BIO_printf(bp, "%02x%s", s[i], ((i + 1) == n) ? "" : ":") <= 0)
293 return 0;
294 }
295 if (BIO_write(bp, "\n", 1) != 1)
296 return 0;
297
298 return 1;
299}
300
301int X509_signature_print(BIO *bp, const X509_ALGOR *sigalg,
302 const ASN1_STRING *sig)
303{
304 int sig_nid;
305 int indent = 4;
306 if (BIO_printf(bp, "%*sSignature Algorithm: ", indent, "") <= 0)
307 return 0;
308 if (i2a_ASN1_OBJECT(bp, sigalg->algorithm) <= 0)
309 return 0;
310
311 if (sig && BIO_printf(bp, "\n%*sSignature Value:", indent, "") <= 0)
312 return 0;
313 sig_nid = OBJ_obj2nid(sigalg->algorithm);
314 if (sig_nid != NID_undef) {
315 int pkey_nid, dig_nid;
316 const EVP_PKEY_ASN1_METHOD *ameth;
317 if (OBJ_find_sigid_algs(sig_nid, &dig_nid, &pkey_nid)) {
318 ameth = EVP_PKEY_asn1_find(NULL, pkey_nid);
319 if (ameth && ameth->sig_print)
320 return ameth->sig_print(bp, sigalg, sig, indent + 4, 0);
321 }
322 }
323 if (BIO_write(bp, "\n", 1) != 1)
324 return 0;
325 if (sig)
326 return X509_signature_dump(bp, sig, indent + 4);
327 return 1;
328}
329
330int X509_aux_print(BIO *out, X509 *x, int indent)
331{
332 char oidstr[80], first;
333 STACK_OF(ASN1_OBJECT) *trust, *reject;
334 const unsigned char *alias, *keyid;
335 int keyidlen;
336 int i;
337 if (X509_trusted(x) == 0)
338 return 1;
339 trust = X509_get0_trust_objects(x);
340 reject = X509_get0_reject_objects(x);
341 if (trust) {
342 first = 1;
343 BIO_printf(out, "%*sTrusted Uses:\n%*s", indent, "", indent + 2, "");
344 for (i = 0; i < sk_ASN1_OBJECT_num(trust); i++) {
345 if (!first)
346 BIO_puts(out, ", ");
347 else
348 first = 0;
349 OBJ_obj2txt(oidstr, sizeof(oidstr),
350 sk_ASN1_OBJECT_value(trust, i), 0);
351 BIO_puts(out, oidstr);
352 }
353 BIO_puts(out, "\n");
354 } else
355 BIO_printf(out, "%*sNo Trusted Uses.\n", indent, "");
356 if (reject) {
357 first = 1;
358 BIO_printf(out, "%*sRejected Uses:\n%*s", indent, "", indent + 2, "");
359 for (i = 0; i < sk_ASN1_OBJECT_num(reject); i++) {
360 if (!first)
361 BIO_puts(out, ", ");
362 else
363 first = 0;
364 OBJ_obj2txt(oidstr, sizeof(oidstr),
365 sk_ASN1_OBJECT_value(reject, i), 0);
366 BIO_puts(out, oidstr);
367 }
368 BIO_puts(out, "\n");
369 } else
370 BIO_printf(out, "%*sNo Rejected Uses.\n", indent, "");
371 alias = X509_alias_get0(x, NULL);
372 if (alias)
373 BIO_printf(out, "%*sAlias: %s\n", indent, "", alias);
374 keyid = X509_keyid_get0(x, &keyidlen);
375 if (keyid) {
376 BIO_printf(out, "%*sKey Id: ", indent, "");
377 for (i = 0; i < keyidlen; i++)
378 BIO_printf(out, "%s%02X", i ? ":" : "", keyid[i]);
379 BIO_write(out, "\n", 1);
380 }
381 return 1;
382}
383