1 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
2  * All rights reserved.
3  *
4  * This package is an SSL implementation written
5  * by Eric Young (eay@cryptsoft.com).
6  * The implementation was written so as to conform with Netscapes SSL.
7  *
8  * This library is free for commercial and non-commercial use as long as
9  * the following conditions are aheared to.  The following conditions
10  * apply to all code found in this distribution, be it the RC4, RSA,
11  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
12  * included with this distribution is covered by the same copyright terms
13  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
14  *
15  * Copyright remains Eric Young's, and as such any Copyright notices in
16  * the code are not to be removed.
17  * If this package is used in a product, Eric Young should be given attribution
18  * as the author of the parts of the library used.
19  * This can be in the form of a textual message at program startup or
20  * in documentation (online or textual) provided with the package.
21  *
22  * Redistribution and use in source and binary forms, with or without
23  * modification, are permitted provided that the following conditions
24  * are met:
25  * 1. Redistributions of source code must retain the copyright
26  *    notice, this list of conditions and the following disclaimer.
27  * 2. Redistributions in binary form must reproduce the above copyright
28  *    notice, this list of conditions and the following disclaimer in the
29  *    documentation and/or other materials provided with the distribution.
30  * 3. All advertising materials mentioning features or use of this software
31  *    must display the following acknowledgement:
32  *    "This product includes cryptographic software written by
33  *     Eric Young (eay@cryptsoft.com)"
34  *    The word 'cryptographic' can be left out if the rouines from the library
35  *    being used are not cryptographic related :-).
36  * 4. If you include any Windows specific code (or a derivative thereof) from
37  *    the apps directory (application code) you must include an acknowledgement:
38  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
39  *
40  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
41  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
43  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
44  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
45  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
46  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
48  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
49  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
50  * SUCH DAMAGE.
51  *
52  * The licence and distribution terms for any publically available version or
53  * derivative of this code cannot be changed.  i.e. this code cannot simply be
54  * copied and put under another distribution licence
55  * [including the GNU Public Licence.] */
56 
57 #include <openssl/x509.h>
58 
X509_verify_cert_error_string(long err)59 const char *X509_verify_cert_error_string(long err)
60 {
61     switch (err) {
62     case X509_V_OK:
63         return "ok";
64     case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT:
65         return "unable to get issuer certificate";
66     case X509_V_ERR_UNABLE_TO_GET_CRL:
67         return "unable to get certificate CRL";
68     case X509_V_ERR_UNABLE_TO_DECRYPT_CERT_SIGNATURE:
69         return "unable to decrypt certificate's signature";
70     case X509_V_ERR_UNABLE_TO_DECRYPT_CRL_SIGNATURE:
71         return "unable to decrypt CRL's signature";
72     case X509_V_ERR_UNABLE_TO_DECODE_ISSUER_PUBLIC_KEY:
73         return "unable to decode issuer public key";
74     case X509_V_ERR_CERT_SIGNATURE_FAILURE:
75         return "certificate signature failure";
76     case X509_V_ERR_CRL_SIGNATURE_FAILURE:
77         return "CRL signature failure";
78     case X509_V_ERR_CERT_NOT_YET_VALID:
79         return "certificate is not yet valid";
80     case X509_V_ERR_CRL_NOT_YET_VALID:
81         return "CRL is not yet valid";
82     case X509_V_ERR_CERT_HAS_EXPIRED:
83         return "certificate has expired";
84     case X509_V_ERR_CRL_HAS_EXPIRED:
85         return "CRL has expired";
86     case X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD:
87         return "format error in certificate's notBefore field";
88     case X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD:
89         return "format error in certificate's notAfter field";
90     case X509_V_ERR_ERROR_IN_CRL_LAST_UPDATE_FIELD:
91         return "format error in CRL's lastUpdate field";
92     case X509_V_ERR_ERROR_IN_CRL_NEXT_UPDATE_FIELD:
93         return "format error in CRL's nextUpdate field";
94     case X509_V_ERR_OUT_OF_MEM:
95         return "out of memory";
96     case X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT:
97         return "self signed certificate";
98     case X509_V_ERR_SELF_SIGNED_CERT_IN_CHAIN:
99         return "self signed certificate in certificate chain";
100     case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY:
101         return "unable to get local issuer certificate";
102     case X509_V_ERR_UNABLE_TO_VERIFY_LEAF_SIGNATURE:
103         return "unable to verify the first certificate";
104     case X509_V_ERR_CERT_CHAIN_TOO_LONG:
105         return "certificate chain too long";
106     case X509_V_ERR_CERT_REVOKED:
107         return "certificate revoked";
108     case X509_V_ERR_INVALID_CA:
109         return "invalid CA certificate";
110     case X509_V_ERR_INVALID_NON_CA:
111         return "invalid non-CA certificate (has CA markings)";
112     case X509_V_ERR_PATH_LENGTH_EXCEEDED:
113         return "path length constraint exceeded";
114     case X509_V_ERR_PROXY_PATH_LENGTH_EXCEEDED:
115         return "proxy path length constraint exceeded";
116     case X509_V_ERR_PROXY_CERTIFICATES_NOT_ALLOWED:
117         return
118             "proxy certificates not allowed, please set the appropriate flag";
119     case X509_V_ERR_INVALID_PURPOSE:
120         return "unsupported certificate purpose";
121     case X509_V_ERR_CERT_UNTRUSTED:
122         return "certificate not trusted";
123     case X509_V_ERR_CERT_REJECTED:
124         return "certificate rejected";
125     case X509_V_ERR_APPLICATION_VERIFICATION:
126         return "application verification failure";
127     case X509_V_ERR_SUBJECT_ISSUER_MISMATCH:
128         return "subject issuer mismatch";
129     case X509_V_ERR_AKID_SKID_MISMATCH:
130         return "authority and subject key identifier mismatch";
131     case X509_V_ERR_AKID_ISSUER_SERIAL_MISMATCH:
132         return "authority and issuer serial number mismatch";
133     case X509_V_ERR_KEYUSAGE_NO_CERTSIGN:
134         return "key usage does not include certificate signing";
135     case X509_V_ERR_UNABLE_TO_GET_CRL_ISSUER:
136         return "unable to get CRL issuer certificate";
137     case X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION:
138         return "unhandled critical extension";
139     case X509_V_ERR_KEYUSAGE_NO_CRL_SIGN:
140         return "key usage does not include CRL signing";
141     case X509_V_ERR_KEYUSAGE_NO_DIGITAL_SIGNATURE:
142         return "key usage does not include digital signature";
143     case X509_V_ERR_UNHANDLED_CRITICAL_CRL_EXTENSION:
144         return "unhandled critical CRL extension";
145     case X509_V_ERR_INVALID_EXTENSION:
146         return "invalid or inconsistent certificate extension";
147     case X509_V_ERR_INVALID_POLICY_EXTENSION:
148         return "invalid or inconsistent certificate policy extension";
149     case X509_V_ERR_NO_EXPLICIT_POLICY:
150         return "no explicit policy";
151     case X509_V_ERR_DIFFERENT_CRL_SCOPE:
152         return "Different CRL scope";
153     case X509_V_ERR_UNSUPPORTED_EXTENSION_FEATURE:
154         return "Unsupported extension feature";
155     case X509_V_ERR_UNNESTED_RESOURCE:
156         return "RFC 3779 resource not subset of parent's resources";
157 
158     case X509_V_ERR_PERMITTED_VIOLATION:
159         return "permitted subtree violation";
160     case X509_V_ERR_EXCLUDED_VIOLATION:
161         return "excluded subtree violation";
162     case X509_V_ERR_SUBTREE_MINMAX:
163         return "name constraints minimum and maximum not supported";
164     case X509_V_ERR_UNSUPPORTED_CONSTRAINT_TYPE:
165         return "unsupported name constraint type";
166     case X509_V_ERR_UNSUPPORTED_CONSTRAINT_SYNTAX:
167         return "unsupported or invalid name constraint syntax";
168     case X509_V_ERR_UNSUPPORTED_NAME_SYNTAX:
169         return "unsupported or invalid name syntax";
170     case X509_V_ERR_CRL_PATH_VALIDATION_ERROR:
171         return "CRL path validation error";
172 
173     case X509_V_ERR_SUITE_B_INVALID_VERSION:
174         return "Suite B: certificate version invalid";
175     case X509_V_ERR_SUITE_B_INVALID_ALGORITHM:
176         return "Suite B: invalid public key algorithm";
177     case X509_V_ERR_SUITE_B_INVALID_CURVE:
178         return "Suite B: invalid ECC curve";
179     case X509_V_ERR_SUITE_B_INVALID_SIGNATURE_ALGORITHM:
180         return "Suite B: invalid signature algorithm";
181     case X509_V_ERR_SUITE_B_LOS_NOT_ALLOWED:
182         return "Suite B: curve not allowed for this LOS";
183     case X509_V_ERR_SUITE_B_CANNOT_SIGN_P_384_WITH_P_256:
184         return "Suite B: cannot sign P-384 with P-256";
185 
186     case X509_V_ERR_HOSTNAME_MISMATCH:
187         return "Hostname mismatch";
188     case X509_V_ERR_EMAIL_MISMATCH:
189         return "Email address mismatch";
190     case X509_V_ERR_IP_ADDRESS_MISMATCH:
191         return "IP address mismatch";
192 
193     case X509_V_ERR_INVALID_CALL:
194         return "Invalid certificate verification context";
195     case X509_V_ERR_STORE_LOOKUP:
196         return "Issuer certificate lookup error";
197 
198     case X509_V_ERR_NAME_CONSTRAINTS_WITHOUT_SANS:
199         return "Issuer has name constraints but leaf has no SANs";
200 
201     default:
202         return "unknown certificate verification error";
203     }
204 }
205