2 * Copyright 1995-2016 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 #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 #include "crypto/x509.h"
20 #ifndef OPENSSL_NO_STDIO
21 int X509_print_fp(FILE *fp
, X509
*x
)
23 return X509_print_ex_fp(fp
, x
, XN_FLAG_COMPAT
, X509_FLAG_COMPAT
);
26 int X509_print_ex_fp(FILE *fp
, X509
*x
, unsigned long nmflag
,
32 if ((b
= BIO_new(BIO_s_file())) == NULL
) {
33 X509err(X509_F_X509_PRINT_EX_FP
, ERR_R_BUF_LIB
);
36 BIO_set_fp(b
, fp
, BIO_NOCLOSE
);
37 ret
= X509_print_ex(b
, x
, nmflag
, cflag
);
43 int X509_print(BIO
*bp
, X509
*x
)
45 return X509_print_ex(bp
, x
, XN_FLAG_COMPAT
, X509_FLAG_COMPAT
);
48 int X509_print_ex(BIO
*bp
, X509
*x
, unsigned long nmflags
,
53 char *m
= NULL
, mlch
= ' ';
56 EVP_PKEY
*pkey
= NULL
;
59 if ((nmflags
& XN_FLAG_SEP_MASK
) == XN_FLAG_SEP_MULTILINE
) {
64 if (nmflags
== X509_FLAG_COMPAT
)
67 if (!(cflag
& X509_FLAG_NO_HEADER
)) {
68 if (BIO_write(bp
, "Certificate:\n", 13) <= 0)
70 if (BIO_write(bp
, " Data:\n", 10) <= 0)
73 if (!(cflag
& X509_FLAG_NO_VERSION
)) {
74 l
= X509_get_version(x
);
75 if (l
>= 0 && l
<= 2) {
76 if (BIO_printf(bp
, "%8sVersion: %ld (0x%lx)\n", "", l
+ 1, (unsigned long)l
) <= 0)
79 if (BIO_printf(bp
, "%8sVersion: Unknown (%ld)\n", "", l
) <= 0)
83 if (!(cflag
& X509_FLAG_NO_SERIAL
)) {
85 if (BIO_write(bp
, " Serial Number:", 22) <= 0)
88 bs
= X509_get_serialNumber(x
);
89 if (bs
->length
<= (int)sizeof(long)) {
91 l
= ASN1_INTEGER_get(bs
);
98 if (bs
->type
== V_ASN1_NEG_INTEGER
) {
99 ul
= 0 - (unsigned long)l
;
105 if (BIO_printf(bp
, " %s%lu (%s0x%lx)\n", neg
, ul
, neg
, ul
) <= 0)
108 neg
= (bs
->type
== V_ASN1_NEG_INTEGER
) ? " (Negative)" : "";
109 if (BIO_printf(bp
, "\n%12s%s", "", neg
) <= 0)
112 for (i
= 0; i
< bs
->length
; i
++) {
113 if (BIO_printf(bp
, "%02x%c", bs
->data
[i
],
114 ((i
+ 1 == bs
->length
) ? '\n' : ':')) <= 0)
121 if (!(cflag
& X509_FLAG_NO_SIGNAME
)) {
122 const X509_ALGOR
*tsig_alg
= X509_get0_tbs_sigalg(x
);
124 if (BIO_puts(bp
, " ") <= 0)
126 if (X509_signature_print(bp
, tsig_alg
, NULL
) <= 0)
130 if (!(cflag
& X509_FLAG_NO_ISSUER
)) {
131 if (BIO_printf(bp
, " Issuer:%c", mlch
) <= 0)
133 if (X509_NAME_print_ex(bp
, X509_get_issuer_name(x
), nmindent
, nmflags
)
136 if (BIO_write(bp
, "\n", 1) <= 0)
139 if (!(cflag
& X509_FLAG_NO_VALIDITY
)) {
140 if (BIO_write(bp
, " Validity\n", 17) <= 0)
142 if (BIO_write(bp
, " Not Before: ", 24) <= 0)
144 if (!ASN1_TIME_print(bp
, X509_get0_notBefore(x
)))
146 if (BIO_write(bp
, "\n Not After : ", 25) <= 0)
148 if (!ASN1_TIME_print(bp
, X509_get0_notAfter(x
)))
150 if (BIO_write(bp
, "\n", 1) <= 0)
153 if (!(cflag
& X509_FLAG_NO_SUBJECT
)) {
154 if (BIO_printf(bp
, " Subject:%c", mlch
) <= 0)
156 if (X509_NAME_print_ex
157 (bp
, X509_get_subject_name(x
), nmindent
, nmflags
) < 0)
159 if (BIO_write(bp
, "\n", 1) <= 0)
162 if (!(cflag
& X509_FLAG_NO_PUBKEY
)) {
163 X509_PUBKEY
*xpkey
= X509_get_X509_PUBKEY(x
);
165 X509_PUBKEY_get0_param(&xpoid
, NULL
, NULL
, NULL
, xpkey
);
166 if (BIO_write(bp
, " Subject Public Key Info:\n", 33) <= 0)
168 if (BIO_printf(bp
, "%12sPublic Key Algorithm: ", "") <= 0)
170 if (i2a_ASN1_OBJECT(bp
, xpoid
) <= 0)
172 if (BIO_puts(bp
, "\n") <= 0)
175 pkey
= X509_get0_pubkey(x
);
177 BIO_printf(bp
, "%12sUnable to load Public Key\n", "");
178 ERR_print_errors(bp
);
180 EVP_PKEY_print_public(bp
, pkey
, 16, NULL
);
184 if (!(cflag
& X509_FLAG_NO_IDS
)) {
185 const ASN1_BIT_STRING
*iuid
, *suid
;
186 X509_get0_uids(x
, &iuid
, &suid
);
188 if (BIO_printf(bp
, "%8sIssuer Unique ID: ", "") <= 0)
190 if (!X509_signature_dump(bp
, iuid
, 12))
194 if (BIO_printf(bp
, "%8sSubject Unique ID: ", "") <= 0)
196 if (!X509_signature_dump(bp
, suid
, 12))
201 if (!(cflag
& X509_FLAG_NO_EXTENSIONS
))
202 X509V3_extensions_print(bp
, "X509v3 extensions",
203 X509_get0_extensions(x
), cflag
, 8);
205 if (!(cflag
& X509_FLAG_NO_SIGDUMP
)) {
206 const X509_ALGOR
*sig_alg
;
207 const ASN1_BIT_STRING
*sig
;
208 X509_get0_signature(&sig
, &sig_alg
, x
);
209 if (X509_signature_print(bp
, sig_alg
, sig
) <= 0)
212 if (!(cflag
& X509_FLAG_NO_AUX
)) {
213 if (!X509_aux_print(bp
, x
, 0))
222 int X509_ocspid_print(BIO
*bp
, X509
*x
)
224 unsigned char *der
= NULL
;
225 unsigned char *dertmp
;
228 unsigned char SHA1md
[SHA_DIGEST_LENGTH
];
229 ASN1_BIT_STRING
*keybstr
;
233 * display the hash of the subject as it would appear in OCSP requests
235 if (BIO_printf(bp
, " Subject OCSP hash: ") <= 0)
237 subj
= X509_get_subject_name(x
);
238 derlen
= i2d_X509_NAME(subj
, NULL
);
239 if ((der
= dertmp
= OPENSSL_malloc(derlen
)) == NULL
)
241 i2d_X509_NAME(subj
, &dertmp
);
243 if (!EVP_Digest(der
, derlen
, SHA1md
, NULL
, EVP_sha1(), NULL
))
245 for (i
= 0; i
< SHA_DIGEST_LENGTH
; i
++) {
246 if (BIO_printf(bp
, "%02X", SHA1md
[i
]) <= 0)
253 * display the hash of the public key as it would appear in OCSP requests
255 if (BIO_printf(bp
, "\n Public key OCSP hash: ") <= 0)
258 keybstr
= X509_get0_pubkey_bitstr(x
);
263 if (!EVP_Digest(ASN1_STRING_get0_data(keybstr
),
264 ASN1_STRING_length(keybstr
), SHA1md
, NULL
, EVP_sha1(),
267 for (i
= 0; i
< SHA_DIGEST_LENGTH
; i
++) {
268 if (BIO_printf(bp
, "%02X", SHA1md
[i
]) <= 0)
271 BIO_printf(bp
, "\n");
279 int X509_signature_dump(BIO
*bp
, const ASN1_STRING
*sig
, int indent
)
281 const unsigned char *s
;
286 for (i
= 0; i
< n
; i
++) {
288 if (i
> 0 && BIO_write(bp
, "\n", 1) <= 0)
290 if (BIO_indent(bp
, indent
, indent
) <= 0)
293 if (BIO_printf(bp
, "%02x%s", s
[i
], ((i
+ 1) == n
) ? "" : ":") <= 0)
296 if (BIO_write(bp
, "\n", 1) != 1)
302 int X509_signature_print(BIO
*bp
, const X509_ALGOR
*sigalg
,
303 const ASN1_STRING
*sig
)
307 if (BIO_printf(bp
, "%*sSignature Algorithm: ", indent
, "") <= 0)
309 if (i2a_ASN1_OBJECT(bp
, sigalg
->algorithm
) <= 0)
312 if (sig
&& BIO_printf(bp
, "\n%*sSignature Value:", indent
, "") <= 0)
314 sig_nid
= OBJ_obj2nid(sigalg
->algorithm
);
315 if (sig_nid
!= NID_undef
) {
316 int pkey_nid
, dig_nid
;
317 const EVP_PKEY_ASN1_METHOD
*ameth
;
318 if (OBJ_find_sigid_algs(sig_nid
, &dig_nid
, &pkey_nid
)) {
319 ameth
= EVP_PKEY_asn1_find(NULL
, pkey_nid
);
320 if (ameth
&& ameth
->sig_print
)
321 return ameth
->sig_print(bp
, sigalg
, sig
, indent
+ 4, 0);
324 if (BIO_write(bp
, "\n", 1) != 1)
327 return X509_signature_dump(bp
, sig
, indent
+ 4);
331 int X509_aux_print(BIO
*out
, X509
*x
, int indent
)
333 char oidstr
[80], first
;
334 STACK_OF(ASN1_OBJECT
) *trust
, *reject
;
335 const unsigned char *alias
, *keyid
;
338 if (X509_trusted(x
) == 0)
340 trust
= X509_get0_trust_objects(x
);
341 reject
= X509_get0_reject_objects(x
);
344 BIO_printf(out
, "%*sTrusted Uses:\n%*s", indent
, "", indent
+ 2, "");
345 for (i
= 0; i
< sk_ASN1_OBJECT_num(trust
); i
++) {
350 OBJ_obj2txt(oidstr
, sizeof(oidstr
),
351 sk_ASN1_OBJECT_value(trust
, i
), 0);
352 BIO_puts(out
, oidstr
);
356 BIO_printf(out
, "%*sNo Trusted Uses.\n", indent
, "");
359 BIO_printf(out
, "%*sRejected Uses:\n%*s", indent
, "", indent
+ 2, "");
360 for (i
= 0; i
< sk_ASN1_OBJECT_num(reject
); i
++) {
365 OBJ_obj2txt(oidstr
, sizeof(oidstr
),
366 sk_ASN1_OBJECT_value(reject
, i
), 0);
367 BIO_puts(out
, oidstr
);
371 BIO_printf(out
, "%*sNo Rejected Uses.\n", indent
, "");
372 alias
= X509_alias_get0(x
, NULL
);
374 BIO_printf(out
, "%*sAlias: %s\n", indent
, "", alias
);
375 keyid
= X509_keyid_get0(x
, &keyidlen
);
377 BIO_printf(out
, "%*sKey Id: ", indent
, "");
378 for (i
= 0; i
< keyidlen
; i
++)
379 BIO_printf(out
, "%s%02X", i
? ":" : "", keyid
[i
]);
380 BIO_write(out
, "\n", 1);
386 * Helper functions for improving certificate verification error diagnostics
389 int x509_print_ex_brief(BIO
*bio
, X509
*cert
, unsigned long neg_cflags
)
391 unsigned long flags
= ASN1_STRFLGS_RFC2253
| ASN1_STRFLGS_ESC_QUOTE
|
392 XN_FLAG_SEP_CPLUS_SPC
| XN_FLAG_FN_SN
;
395 return BIO_printf(bio
, " (no certificate)\n") > 0;
396 if (BIO_printf(bio
, " certificate\n") <= 0
397 || !X509_print_ex(bio
, cert
, flags
, ~X509_FLAG_NO_SUBJECT
))
399 if (X509_check_issued((X509
*)cert
, cert
) == X509_V_OK
) {
400 if (BIO_printf(bio
, " self-issued\n") <= 0)
403 if (BIO_printf(bio
, " ") <= 0
404 || !X509_print_ex(bio
, cert
, flags
, ~X509_FLAG_NO_ISSUER
))
407 if (!X509_print_ex(bio
, cert
, flags
,
408 ~(X509_FLAG_NO_SERIAL
| X509_FLAG_NO_VALIDITY
)))
410 if (X509_cmp_current_time(X509_get0_notBefore(cert
)) > 0)
411 if (BIO_printf(bio
, " not yet valid\n") <= 0)
413 if (X509_cmp_current_time(X509_get0_notAfter(cert
)) < 0)
414 if (BIO_printf(bio
, " no more valid\n") <= 0)
416 return X509_print_ex(bio
, cert
, flags
, ~(neg_cflags
));
419 static int print_certs(BIO
*bio
, const STACK_OF(X509
) *certs
)
423 if (certs
== NULL
|| sk_X509_num(certs
) <= 0)
424 return BIO_printf(bio
, " (no certificates)\n") >= 0;
426 for (i
= 0; i
< sk_X509_num(certs
); i
++) {
427 X509
*cert
= sk_X509_value(certs
, i
);
428 if (cert
!= NULL
&& !x509_print_ex_brief(bio
, cert
, 0))
434 static int print_store_certs(BIO
*bio
, X509_STORE
*store
)
437 STACK_OF(X509
) *certs
= X509_STORE_get1_all_certs(store
);
438 int ret
= print_certs(bio
, certs
);
440 sk_X509_pop_free(certs
, X509_free
);
443 return BIO_printf(bio
, " (no trusted store)\n") >= 0;
447 /* Extend the error queue with details on a failed cert verification */
448 int X509_STORE_CTX_print_verify_cb(int ok
, X509_STORE_CTX
*ctx
)
450 if (ok
== 0 && ctx
!= NULL
) {
451 int cert_error
= X509_STORE_CTX_get_error(ctx
);
452 int depth
= X509_STORE_CTX_get_error_depth(ctx
);
453 X509
*cert
= X509_STORE_CTX_get_current_cert(ctx
);
454 BIO
*bio
= BIO_new(BIO_s_mem()); /* may be NULL */
456 BIO_printf(bio
, "%s at depth=%d error=%d (%s)\n",
457 X509_STORE_CTX_get0_parent_ctx(ctx
) != NULL
458 ? "CRL path validation" : "certificate verification",
460 X509_verify_cert_error_string(cert_error
));
461 BIO_printf(bio
, "failure for:\n");
462 x509_print_ex_brief(bio
, cert
, X509_FLAG_NO_EXTENSIONS
);
463 if (cert_error
== X509_V_ERR_CERT_UNTRUSTED
464 || cert_error
== X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT
465 || cert_error
== X509_V_ERR_SELF_SIGNED_CERT_IN_CHAIN
466 || cert_error
== X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT
467 || cert_error
== X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY
468 || cert_error
== X509_V_ERR_UNABLE_TO_GET_CRL_ISSUER
469 || cert_error
== X509_V_ERR_STORE_LOOKUP
) {
470 BIO_printf(bio
, "non-trusted certs:\n");
471 print_certs(bio
, X509_STORE_CTX_get0_untrusted(ctx
));
472 BIO_printf(bio
, "certs in trust store:\n");
473 print_store_certs(bio
, X509_STORE_CTX_get0_store(ctx
));
475 CMPerr(0, X509_R_CERTIFICATE_VERIFICATION_FAILED
);
476 ERR_add_error_mem_bio("\n", bio
);
481 * TODO we could check policies here too, e.g.:
482 * if (cert_error == X509_V_OK && ok == 2)
483 * policies_print(NULL, ctx);