1/* $OpenBSD: x509_txt.c,v 1.28 2023/02/16 08:38:17 tb Exp $ */
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 <openssl/x509_vfy.h>
60
61const char *
62X509_verify_cert_error_string(long n)
63{
64	switch ((int)n) {
65	case X509_V_OK:
66		return "ok";
67	case X509_V_ERR_UNSPECIFIED:
68		return "Unspecified certificate verification error";
69	case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT:
70		return "unable to get issuer certificate";
71	case X509_V_ERR_UNABLE_TO_GET_CRL:
72		return "unable to get certificate CRL";
73	case X509_V_ERR_UNABLE_TO_DECRYPT_CERT_SIGNATURE:
74		return "unable to decrypt certificate's signature";
75	case X509_V_ERR_UNABLE_TO_DECRYPT_CRL_SIGNATURE:
76		return "unable to decrypt CRL's signature";
77	case X509_V_ERR_UNABLE_TO_DECODE_ISSUER_PUBLIC_KEY:
78		return "unable to decode issuer public key";
79	case X509_V_ERR_CERT_SIGNATURE_FAILURE:
80		return "certificate signature failure";
81	case X509_V_ERR_CRL_SIGNATURE_FAILURE:
82		return "CRL signature failure";
83	case X509_V_ERR_CERT_NOT_YET_VALID:
84		return "certificate is not yet valid";
85	case X509_V_ERR_CERT_HAS_EXPIRED:
86		return "certificate has expired";
87	case X509_V_ERR_CRL_NOT_YET_VALID:
88		return "CRL is not yet valid";
89	case X509_V_ERR_CRL_HAS_EXPIRED:
90		return "CRL has expired";
91	case X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD:
92		return "format error in certificate's notBefore field";
93	case X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD:
94		return "format error in certificate's notAfter field";
95	case X509_V_ERR_ERROR_IN_CRL_LAST_UPDATE_FIELD:
96		return "format error in CRL's lastUpdate field";
97	case X509_V_ERR_ERROR_IN_CRL_NEXT_UPDATE_FIELD:
98		return "format error in CRL's nextUpdate field";
99	case X509_V_ERR_OUT_OF_MEM:
100		return "out of memory";
101	case X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT:
102		return "self signed certificate";
103	case X509_V_ERR_SELF_SIGNED_CERT_IN_CHAIN:
104		return "self signed certificate in certificate chain";
105	case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY:
106		return "unable to get local issuer certificate";
107	case X509_V_ERR_UNABLE_TO_VERIFY_LEAF_SIGNATURE:
108		return "unable to verify the first certificate";
109	case X509_V_ERR_CERT_CHAIN_TOO_LONG:
110		return "certificate chain too long";
111	case X509_V_ERR_CERT_REVOKED:
112		return "certificate revoked";
113	case X509_V_ERR_INVALID_CA:
114		return "invalid CA certificate";
115	case X509_V_ERR_PATH_LENGTH_EXCEEDED:
116		return "path length constraint exceeded";
117	case X509_V_ERR_INVALID_PURPOSE:
118		return "unsupported certificate purpose";
119	case X509_V_ERR_CERT_UNTRUSTED:
120		return "certificate not trusted";
121	case X509_V_ERR_CERT_REJECTED:
122		return "certificate rejected";
123	case X509_V_ERR_SUBJECT_ISSUER_MISMATCH:
124		return "subject issuer mismatch";
125	case X509_V_ERR_AKID_SKID_MISMATCH:
126		return "authority and subject key identifier mismatch";
127	case X509_V_ERR_AKID_ISSUER_SERIAL_MISMATCH:
128		return "authority and issuer serial number mismatch";
129	case X509_V_ERR_KEYUSAGE_NO_CERTSIGN:
130		return "key usage does not include certificate signing";
131	case X509_V_ERR_UNABLE_TO_GET_CRL_ISSUER:
132		return "unable to get CRL issuer certificate";
133	case X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION:
134		return "unhandled critical extension";
135	case X509_V_ERR_KEYUSAGE_NO_CRL_SIGN:
136		return "key usage does not include CRL signing";
137	case X509_V_ERR_UNHANDLED_CRITICAL_CRL_EXTENSION:
138		return "unhandled critical CRL extension";
139	case X509_V_ERR_INVALID_NON_CA:
140		return "invalid non-CA certificate (has CA markings)";
141	case X509_V_ERR_PROXY_PATH_LENGTH_EXCEEDED:
142		return "proxy path length constraint exceeded";
143	case X509_V_ERR_KEYUSAGE_NO_DIGITAL_SIGNATURE:
144		return "key usage does not include digital signature";
145	case X509_V_ERR_PROXY_CERTIFICATES_NOT_ALLOWED:
146		return "proxy certificates not allowed, "
147		    "please set the appropriate flag";
148	case X509_V_ERR_INVALID_EXTENSION:
149		return "invalid or inconsistent certificate extension";
150	case X509_V_ERR_INVALID_POLICY_EXTENSION:
151		return "invalid or inconsistent certificate policy extension";
152	case X509_V_ERR_NO_EXPLICIT_POLICY:
153		return "no explicit policy";
154	case X509_V_ERR_DIFFERENT_CRL_SCOPE:
155		return "Different CRL scope";
156	case X509_V_ERR_UNSUPPORTED_EXTENSION_FEATURE:
157		return "Unsupported extension feature";
158	case X509_V_ERR_UNNESTED_RESOURCE:
159		return "RFC 3779 resource not subset of parent's resources";
160	case X509_V_ERR_PERMITTED_VIOLATION:
161		return "permitted subtree violation";
162	case X509_V_ERR_EXCLUDED_VIOLATION:
163		return "excluded subtree violation";
164	case X509_V_ERR_SUBTREE_MINMAX:
165		return "name constraints minimum and maximum not supported";
166	case X509_V_ERR_UNSUPPORTED_CONSTRAINT_TYPE:
167		return "unsupported name constraint type";
168	case X509_V_ERR_UNSUPPORTED_CONSTRAINT_SYNTAX:
169		return "unsupported or invalid name constraint syntax";
170	case X509_V_ERR_UNSUPPORTED_NAME_SYNTAX:
171		return "unsupported or invalid name syntax";
172	case X509_V_ERR_CRL_PATH_VALIDATION_ERROR:
173		return "CRL path validation error";
174	case X509_V_ERR_APPLICATION_VERIFICATION:
175		return "application verification failure";
176	case X509_V_ERR_HOSTNAME_MISMATCH:
177		return "Hostname mismatch";
178	case X509_V_ERR_EMAIL_MISMATCH:
179		return "Email address mismatch";
180	case X509_V_ERR_IP_ADDRESS_MISMATCH:
181		return "IP address mismatch";
182	case X509_V_ERR_INVALID_CALL:
183		return "Invalid certificate verification context";
184	case X509_V_ERR_STORE_LOOKUP:
185		return "Issuer certificate lookup error";
186	case X509_V_ERR_EE_KEY_TOO_SMALL:
187		return "EE certificate key too weak";
188	case X509_V_ERR_CA_KEY_TOO_SMALL:
189		return "CA certificate key too weak";
190	case X509_V_ERR_CA_MD_TOO_WEAK:
191		return "CA signature digest algorithm too weak";
192	default:
193		return "Unknown certificate verification error";
194	}
195}
196LCRYPTO_ALIAS(X509_verify_cert_error_string);
197