crypto/x509/x509_txt.c

   1 /*
   2  * Copyright 1995-2023 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 <time.h>
  12 #include <errno.h>
  13
  14 #include "internal/cryptlib.h"
  15 #include <openssl/buffer.h>
  16 #include <openssl/evp.h>
  17 #include <openssl/asn1.h>
  18 #include <openssl/x509.h>
  19 #include <openssl/objects.h>
  20
  21 const char *X509_verify_cert_error_string(long n)
  22 {
  23     switch ((int)n) {
  24     case X509_V_OK:
  25         return "ok";
  26     case X509_V_ERR_UNSPECIFIED:
  27         return "unspecified certificate verification error";
  28     case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT:
  29         return "unable to get issuer certificate";
  30     case X509_V_ERR_UNABLE_TO_GET_CRL:
  31         return "unable to get certificate CRL";
  32     case X509_V_ERR_UNABLE_TO_DECRYPT_CERT_SIGNATURE:
  33         return "unable to decrypt certificate's signature";
  34     case X509_V_ERR_UNABLE_TO_DECRYPT_CRL_SIGNATURE:
  35         return "unable to decrypt CRL's signature";
  36     case X509_V_ERR_UNABLE_TO_DECODE_ISSUER_PUBLIC_KEY:
  37         return "unable to decode issuer public key";
  38     case X509_V_ERR_CERT_SIGNATURE_FAILURE:
  39         return "certificate signature failure";
  40     case X509_V_ERR_CRL_SIGNATURE_FAILURE:
  41         return "CRL signature failure";
  42     case X509_V_ERR_CERT_NOT_YET_VALID:
  43         return "certificate is not yet valid";
  44     case X509_V_ERR_CERT_HAS_EXPIRED:
  45         return "certificate has expired";
  46     case X509_V_ERR_CRL_NOT_YET_VALID:
  47         return "CRL is not yet valid";
  48     case X509_V_ERR_CRL_HAS_EXPIRED:
  49         return "CRL has expired";
  50     case X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD:
  51         return "format error in certificate's notBefore field";
  52     case X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD:
  53         return "format error in certificate's notAfter field";
  54     case X509_V_ERR_ERROR_IN_CRL_LAST_UPDATE_FIELD:
  55         return "format error in CRL's lastUpdate field";
  56     case X509_V_ERR_ERROR_IN_CRL_NEXT_UPDATE_FIELD:
  57         return "format error in CRL's nextUpdate field";
  58     case X509_V_ERR_OUT_OF_MEM:
  59         return "out of memory";
  60     case X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT:
  61         return "self-signed certificate";
  62     case X509_V_ERR_SELF_SIGNED_CERT_IN_CHAIN:
  63         return "self-signed certificate in certificate chain";
  64     case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY:
  65         return "unable to get local issuer certificate";
  66     case X509_V_ERR_UNABLE_TO_VERIFY_LEAF_SIGNATURE:
  67         return "unable to verify the first certificate";
  68     case X509_V_ERR_CERT_CHAIN_TOO_LONG:
  69         return "certificate chain too long";
  70     case X509_V_ERR_CERT_REVOKED:
  71         return "certificate revoked";
  72     case X509_V_ERR_NO_ISSUER_PUBLIC_KEY:
  73         return "issuer certificate doesn't have a public key";
  74     case X509_V_ERR_PATH_LENGTH_EXCEEDED:
  75         return "path length constraint exceeded";
  76     case X509_V_ERR_INVALID_PURPOSE:
  77         return "unsuitable certificate purpose";
  78     case X509_V_ERR_CERT_UNTRUSTED:
  79         return "certificate not trusted";
  80     case X509_V_ERR_CERT_REJECTED:
  81         return "certificate rejected";
  82     case X509_V_ERR_SUBJECT_ISSUER_MISMATCH:
  83         return "subject issuer mismatch";
  84     case X509_V_ERR_AKID_SKID_MISMATCH:
  85         return "authority and subject key identifier mismatch";
  86     case X509_V_ERR_AKID_ISSUER_SERIAL_MISMATCH:
  87         return "authority and issuer serial number mismatch";
  88     case X509_V_ERR_KEYUSAGE_NO_CERTSIGN:
  89         return "key usage does not include certificate signing";
  90     case X509_V_ERR_UNABLE_TO_GET_CRL_ISSUER:
  91         return "unable to get CRL issuer certificate";
  92     case X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION:
  93         return "unhandled critical extension";
  94     case X509_V_ERR_KEYUSAGE_NO_CRL_SIGN:
  95         return "key usage does not include CRL signing";
  96     case X509_V_ERR_UNHANDLED_CRITICAL_CRL_EXTENSION:
  97         return "unhandled critical CRL extension";
  98     case X509_V_ERR_INVALID_NON_CA:
  99         return "invalid non-CA certificate (has CA markings)";
 100     case X509_V_ERR_PROXY_PATH_LENGTH_EXCEEDED:
 101         return "proxy path length constraint exceeded";
 102     case X509_V_ERR_KEYUSAGE_NO_DIGITAL_SIGNATURE:
 103         return "key usage does not include digital signature";
 104     case X509_V_ERR_PROXY_CERTIFICATES_NOT_ALLOWED:
 105         return
 106             "proxy certificates not allowed, please set the appropriate flag";
 107     case X509_V_ERR_INVALID_EXTENSION:
 108         return "invalid or inconsistent certificate extension";
 109     case X509_V_ERR_INVALID_POLICY_EXTENSION:
 110         return "invalid or inconsistent certificate policy extension";
 111     case X509_V_ERR_NO_EXPLICIT_POLICY:
 112         return "no explicit policy";
 113     case X509_V_ERR_DIFFERENT_CRL_SCOPE:
 114         return "different CRL scope";
 115     case X509_V_ERR_UNSUPPORTED_EXTENSION_FEATURE:
 116         return "unsupported extension feature";
 117     case X509_V_ERR_UNNESTED_RESOURCE:
 118         return "RFC 3779 resource not subset of parent's resources";
 119     case X509_V_ERR_PERMITTED_VIOLATION:
 120         return "permitted subtree violation";
 121     case X509_V_ERR_EXCLUDED_VIOLATION:
 122         return "excluded subtree violation";
 123     case X509_V_ERR_SUBTREE_MINMAX:
 124         return "name constraints minimum and maximum not supported";
 125     case X509_V_ERR_APPLICATION_VERIFICATION:
 126         return "application verification failure";
 127     case X509_V_ERR_UNSUPPORTED_CONSTRAINT_TYPE:
 128         return "unsupported name constraint type";
 129     case X509_V_ERR_UNSUPPORTED_CONSTRAINT_SYNTAX:
 130         return "unsupported or invalid name constraint syntax";
 131     case X509_V_ERR_UNSUPPORTED_NAME_SYNTAX:
 132         return "unsupported or invalid name syntax";
 133     case X509_V_ERR_CRL_PATH_VALIDATION_ERROR:
 134         return "CRL path validation error";
 135     case X509_V_ERR_PATH_LOOP:
 136         return "path loop";
 137     case X509_V_ERR_SUITE_B_INVALID_VERSION:
 138         return "Suite B: certificate version invalid";
 139     case X509_V_ERR_SUITE_B_INVALID_ALGORITHM:
 140         return "Suite B: invalid public key algorithm";
 141     case X509_V_ERR_SUITE_B_INVALID_CURVE:
 142         return "Suite B: invalid ECC curve";
 143     case X509_V_ERR_SUITE_B_INVALID_SIGNATURE_ALGORITHM:
 144         return "Suite B: invalid signature algorithm";
 145     case X509_V_ERR_SUITE_B_LOS_NOT_ALLOWED:
 146         return "Suite B: curve not allowed for this LOS";
 147     case X509_V_ERR_SUITE_B_CANNOT_SIGN_P_384_WITH_P_256:
 148         return "Suite B: cannot sign P-384 with P-256";
 149     case X509_V_ERR_HOSTNAME_MISMATCH:
 150         return "hostname mismatch";
 151     case X509_V_ERR_EMAIL_MISMATCH:
 152         return "email address mismatch";
 153     case X509_V_ERR_IP_ADDRESS_MISMATCH:
 154         return "IP address mismatch";
 155     case X509_V_ERR_DANE_NO_MATCH:
 156         return "no matching DANE TLSA records";
 157     case X509_V_ERR_EE_KEY_TOO_SMALL:
 158         return "EE certificate key too weak";
 159     case X509_V_ERR_CA_KEY_TOO_SMALL:
 160         return "CA certificate key too weak";
 161     case X509_V_ERR_CA_MD_TOO_WEAK:
 162         return "CA signature digest algorithm too weak";
 163     case X509_V_ERR_INVALID_CALL:
 164         return "invalid certificate verification context";
 165     case X509_V_ERR_STORE_LOOKUP:
 166         return "issuer certificate lookup error";
 167     case X509_V_ERR_NO_VALID_SCTS:
 168         return "Certificate Transparency required, but no valid SCTs found";
 169     case X509_V_ERR_PROXY_SUBJECT_NAME_VIOLATION:
 170         return "proxy subject name violation";
 171     case X509_V_ERR_OCSP_VERIFY_NEEDED:
 172         return "OCSP verification needed";
 173     case X509_V_ERR_OCSP_VERIFY_FAILED:
 174         return "OCSP verification failed";
 175     case X509_V_ERR_OCSP_CERT_UNKNOWN:
 176         return "OCSP unknown cert";
 177     case X509_V_ERR_UNSUPPORTED_SIGNATURE_ALGORITHM:
 178         return "Cannot find certificate signature algorithm";
 179     case X509_V_ERR_SIGNATURE_ALGORITHM_MISMATCH:
 180         return "subject signature algorithm and issuer public key algorithm mismatch";
 181     case X509_V_ERR_SIGNATURE_ALGORITHM_INCONSISTENCY:
 182         return "cert info signature and signature algorithm mismatch";
 183     case X509_V_ERR_INVALID_CA:
 184         return "invalid CA certificate";
 185     case X509_V_ERR_PATHLEN_INVALID_FOR_NON_CA:
 186         return "Path length invalid for non-CA cert";
 187     case X509_V_ERR_PATHLEN_WITHOUT_KU_KEY_CERT_SIGN:
 188         return "Path length given without key usage keyCertSign";
 189     case X509_V_ERR_KU_KEY_CERT_SIGN_INVALID_FOR_NON_CA:
 190         return "Key usage keyCertSign invalid for non-CA cert";
 191     case X509_V_ERR_ISSUER_NAME_EMPTY:
 192         return "Issuer name empty";
 193     case X509_V_ERR_SUBJECT_NAME_EMPTY:
 194         return "Subject name empty";
 195     case X509_V_ERR_MISSING_AUTHORITY_KEY_IDENTIFIER:
 196         return "Missing Authority Key Identifier";
 197     case X509_V_ERR_MISSING_SUBJECT_KEY_IDENTIFIER:
 198         return "Missing Subject Key Identifier";
 199     case X509_V_ERR_EMPTY_SUBJECT_ALT_NAME:
 200         return "Empty Subject Alternative Name extension";
 201     case X509_V_ERR_CA_BCONS_NOT_CRITICAL:
 202         return "Basic Constraints of CA cert not marked critical";
 203     case X509_V_ERR_EMPTY_SUBJECT_SAN_NOT_CRITICAL:
 204         return "Subject empty and Subject Alt Name extension not critical";
 205     case X509_V_ERR_AUTHORITY_KEY_IDENTIFIER_CRITICAL:
 206         return "Authority Key Identifier marked critical";
 207     case X509_V_ERR_SUBJECT_KEY_IDENTIFIER_CRITICAL:
 208         return "Subject Key Identifier marked critical";
 209     case X509_V_ERR_CA_CERT_MISSING_KEY_USAGE:
 210         return "CA cert does not include key usage extension";
 211     case X509_V_ERR_EXTENSIONS_REQUIRE_VERSION_3:
 212         return "Using cert extension requires at least X509v3";
 213     case X509_V_ERR_EC_KEY_EXPLICIT_PARAMS:
 214         return "Certificate public key has explicit ECC parameters";
 215     case X509_V_ERR_RPK_UNTRUSTED:
 216         return "Raw public key untrusted, no trusted keys configured";
 217
 218         /*
 219          * Entries must be kept consistent with include/openssl/x509_vfy.h.in
 220          * and with doc/man3/X509_STORE_CTX_get_error.pod
 221          */
 222
 223     default:
 224         /* Printing an error number into a static buffer is not thread-safe */
 225         return "unknown certificate verification error";
 226     }
 227 }