x509_txt.c revision 296465 
1/* crypto/x509/x509_txt.c */
2/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3 * All rights reserved.
4 *
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
8 *
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to.  The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 *
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
22 *
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
25 * are met:
26 * 1. Redistributions of source code must retain the copyright
27 *    notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 *    notice, this list of conditions and the following disclaimer in the
30 *    documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 *    must display the following acknowledgement:
33 *    "This product includes cryptographic software written by
34 *     Eric Young (eay@cryptsoft.com)"
35 *    The word 'cryptographic' can be left out if the rouines from the library
36 *    being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 *    the apps directory (application code) you must include an acknowledgement:
39 *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 *
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51 * SUCH DAMAGE.
52 *
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed.  i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
57 */
58
59#include <stdio.h>
60#include <time.h>
61#include <errno.h>
62
63#include "cryptlib.h"
64#include <openssl/lhash.h>
65#include <openssl/buffer.h>
66#include <openssl/evp.h>
67#include <openssl/asn1.h>
68#include <openssl/x509.h>
69#include <openssl/objects.h>
70
71const char *X509_verify_cert_error_string(long n)
72{
73    static char buf[100];
74
75    switch ((int)n) {
76    case X509_V_OK:
77        return ("ok");
78    case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT:
79        return ("unable to get issuer certificate");
80    case X509_V_ERR_UNABLE_TO_GET_CRL:
81        return ("unable to get certificate CRL");
82    case X509_V_ERR_UNABLE_TO_DECRYPT_CERT_SIGNATURE:
83        return ("unable to decrypt certificate's signature");
84    case X509_V_ERR_UNABLE_TO_DECRYPT_CRL_SIGNATURE:
85        return ("unable to decrypt CRL's signature");
86    case X509_V_ERR_UNABLE_TO_DECODE_ISSUER_PUBLIC_KEY:
87        return ("unable to decode issuer public key");
88    case X509_V_ERR_CERT_SIGNATURE_FAILURE:
89        return ("certificate signature failure");
90    case X509_V_ERR_CRL_SIGNATURE_FAILURE:
91        return ("CRL signature failure");
92    case X509_V_ERR_CERT_NOT_YET_VALID:
93        return ("certificate is not yet valid");
94    case X509_V_ERR_CRL_NOT_YET_VALID:
95        return ("CRL is not yet valid");
96    case X509_V_ERR_CERT_HAS_EXPIRED:
97        return ("certificate has expired");
98    case X509_V_ERR_CRL_HAS_EXPIRED:
99        return ("CRL has expired");
100    case X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD:
101        return ("format error in certificate's notBefore field");
102    case X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD:
103        return ("format error in certificate's notAfter field");
104    case X509_V_ERR_ERROR_IN_CRL_LAST_UPDATE_FIELD:
105        return ("format error in CRL's lastUpdate field");
106    case X509_V_ERR_ERROR_IN_CRL_NEXT_UPDATE_FIELD:
107        return ("format error in CRL's nextUpdate field");
108    case X509_V_ERR_OUT_OF_MEM:
109        return ("out of memory");
110    case X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT:
111        return ("self signed certificate");
112    case X509_V_ERR_SELF_SIGNED_CERT_IN_CHAIN:
113        return ("self signed certificate in certificate chain");
114    case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY:
115        return ("unable to get local issuer certificate");
116    case X509_V_ERR_UNABLE_TO_VERIFY_LEAF_SIGNATURE:
117        return ("unable to verify the first certificate");
118    case X509_V_ERR_CERT_CHAIN_TOO_LONG:
119        return ("certificate chain too long");
120    case X509_V_ERR_CERT_REVOKED:
121        return ("certificate revoked");
122    case X509_V_ERR_INVALID_CA:
123        return ("invalid CA certificate");
124    case X509_V_ERR_INVALID_NON_CA:
125        return ("invalid non-CA certificate (has CA markings)");
126    case X509_V_ERR_PATH_LENGTH_EXCEEDED:
127        return ("path length constraint exceeded");
128    case X509_V_ERR_PROXY_PATH_LENGTH_EXCEEDED:
129        return ("proxy path length constraint exceeded");
130    case X509_V_ERR_PROXY_CERTIFICATES_NOT_ALLOWED:
131        return
132            ("proxy certificates not allowed, please set the appropriate flag");
133    case X509_V_ERR_INVALID_PURPOSE:
134        return ("unsupported certificate purpose");
135    case X509_V_ERR_CERT_UNTRUSTED:
136        return ("certificate not trusted");
137    case X509_V_ERR_CERT_REJECTED:
138        return ("certificate rejected");
139    case X509_V_ERR_APPLICATION_VERIFICATION:
140        return ("application verification failure");
141    case X509_V_ERR_SUBJECT_ISSUER_MISMATCH:
142        return ("subject issuer mismatch");
143    case X509_V_ERR_AKID_SKID_MISMATCH:
144        return ("authority and subject key identifier mismatch");
145    case X509_V_ERR_AKID_ISSUER_SERIAL_MISMATCH:
146        return ("authority and issuer serial number mismatch");
147    case X509_V_ERR_KEYUSAGE_NO_CERTSIGN:
148        return ("key usage does not include certificate signing");
149    case X509_V_ERR_UNABLE_TO_GET_CRL_ISSUER:
150        return ("unable to get CRL issuer certificate");
151    case X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION:
152        return ("unhandled critical extension");
153    case X509_V_ERR_KEYUSAGE_NO_CRL_SIGN:
154        return ("key usage does not include CRL signing");
155    case X509_V_ERR_KEYUSAGE_NO_DIGITAL_SIGNATURE:
156        return ("key usage does not include digital signature");
157    case X509_V_ERR_UNHANDLED_CRITICAL_CRL_EXTENSION:
158        return ("unhandled critical CRL extension");
159    case X509_V_ERR_INVALID_EXTENSION:
160        return ("invalid or inconsistent certificate extension");
161    case X509_V_ERR_INVALID_POLICY_EXTENSION:
162        return ("invalid or inconsistent certificate policy extension");
163    case X509_V_ERR_NO_EXPLICIT_POLICY:
164        return ("no explicit policy");
165    case X509_V_ERR_UNNESTED_RESOURCE:
166        return ("RFC 3779 resource not subset of parent's resources");
167    default:
168        BIO_snprintf(buf, sizeof buf, "error number %ld", n);
169        return (buf);
170    }
171}
172