| 1 | /*
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| 2 | * Copyright 1995-2020 The OpenSSL Project Authors. All Rights Reserved.
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| 3 | *
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| 4 | * Licensed under the OpenSSL license (the "License"). You may not use
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| 5 | * this file except in compliance with the License. You can obtain a copy
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| 6 | * in the file LICENSE in the source distribution or at
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| 7 | * https://www.openssl.org/source/license.html
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| 8 | */
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| 9 |
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| 10 | #include <stdio.h>
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| 11 | #include <time.h>
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| 12 | #include <errno.h>
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| 13 |
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| 14 | #include "internal/cryptlib.h"
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| 15 | #include <openssl/buffer.h>
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| 16 | #include <openssl/evp.h>
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| 17 | #include <openssl/asn1.h>
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| 18 | #include <openssl/x509.h>
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| 19 | #include <openssl/objects.h>
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| 20 |
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| 21 | const char *X509_verify_cert_error_string(long n)
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| 22 | {
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| 23 | switch ((int)n) {
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| 24 | case X509_V_OK:
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| 25 | return "ok";
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| 26 | case X509_V_ERR_UNSPECIFIED:
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| 27 | return "unspecified certificate verification error";
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| 28 | case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT:
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| 29 | return "unable to get issuer certificate";
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| 30 | case X509_V_ERR_UNABLE_TO_GET_CRL:
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| 31 | return "unable to get certificate CRL";
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| 32 | case X509_V_ERR_UNABLE_TO_DECRYPT_CERT_SIGNATURE:
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| 33 | return "unable to decrypt certificate's signature";
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| 34 | case X509_V_ERR_UNABLE_TO_DECRYPT_CRL_SIGNATURE:
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| 35 | return "unable to decrypt CRL's signature";
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| 36 | case X509_V_ERR_UNABLE_TO_DECODE_ISSUER_PUBLIC_KEY:
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| 37 | return "unable to decode issuer public key";
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| 38 | case X509_V_ERR_CERT_SIGNATURE_FAILURE:
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| 39 | return "certificate signature failure";
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| 40 | case X509_V_ERR_CRL_SIGNATURE_FAILURE:
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| 41 | return "CRL signature failure";
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| 42 | case X509_V_ERR_CERT_NOT_YET_VALID:
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| 43 | return "certificate is not yet valid";
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| 44 | case X509_V_ERR_CERT_HAS_EXPIRED:
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| 45 | return "certificate has expired";
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| 46 | case X509_V_ERR_CRL_NOT_YET_VALID:
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| 47 | return "CRL is not yet valid";
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| 48 | case X509_V_ERR_CRL_HAS_EXPIRED:
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| 49 | return "CRL has expired";
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| 50 | case X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD:
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| 51 | return "format error in certificate's notBefore field";
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| 52 | case X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD:
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| 53 | return "format error in certificate's notAfter field";
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| 54 | case X509_V_ERR_ERROR_IN_CRL_LAST_UPDATE_FIELD:
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| 55 | return "format error in CRL's lastUpdate field";
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| 56 | case X509_V_ERR_ERROR_IN_CRL_NEXT_UPDATE_FIELD:
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| 57 | return "format error in CRL's nextUpdate field";
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| 58 | case X509_V_ERR_OUT_OF_MEM:
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| 59 | return "out of memory";
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| 60 | case X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT:
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| 61 | return "self signed certificate";
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| 62 | case X509_V_ERR_SELF_SIGNED_CERT_IN_CHAIN:
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| 63 | return "self signed certificate in certificate chain";
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| 64 | case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY:
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| 65 | return "unable to get local issuer certificate";
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| 66 | case X509_V_ERR_UNABLE_TO_VERIFY_LEAF_SIGNATURE:
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| 67 | return "unable to verify the first certificate";
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| 68 | case X509_V_ERR_CERT_CHAIN_TOO_LONG:
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| 69 | return "certificate chain too long";
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| 70 | case X509_V_ERR_CERT_REVOKED:
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| 71 | return "certificate revoked";
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| 72 | case X509_V_ERR_INVALID_CA:
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| 73 | return "invalid CA certificate";
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| 74 | case X509_V_ERR_PATH_LENGTH_EXCEEDED:
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| 75 | return "path length constraint exceeded";
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| 76 | case X509_V_ERR_INVALID_PURPOSE:
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| 77 | return "unsupported certificate purpose";
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| 78 | case X509_V_ERR_CERT_UNTRUSTED:
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| 79 | return "certificate not trusted";
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| 80 | case X509_V_ERR_CERT_REJECTED:
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| 81 | return "certificate rejected";
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| 82 | case X509_V_ERR_SUBJECT_ISSUER_MISMATCH:
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| 83 | return "subject issuer mismatch";
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| 84 | case X509_V_ERR_AKID_SKID_MISMATCH:
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| 85 | return "authority and subject key identifier mismatch";
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| 86 | case X509_V_ERR_AKID_ISSUER_SERIAL_MISMATCH:
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| 87 | return "authority and issuer serial number mismatch";
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| 88 | case X509_V_ERR_KEYUSAGE_NO_CERTSIGN:
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| 89 | return "key usage does not include certificate signing";
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| 90 | case X509_V_ERR_UNABLE_TO_GET_CRL_ISSUER:
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| 91 | return "unable to get CRL issuer certificate";
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| 92 | case X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION:
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| 93 | return "unhandled critical extension";
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| 94 | case X509_V_ERR_KEYUSAGE_NO_CRL_SIGN:
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| 95 | return "key usage does not include CRL signing";
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| 96 | case X509_V_ERR_UNHANDLED_CRITICAL_CRL_EXTENSION:
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| 97 | return "unhandled critical CRL extension";
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| 98 | case X509_V_ERR_INVALID_NON_CA:
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| 99 | return "invalid non-CA certificate (has CA markings)";
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| 100 | case X509_V_ERR_PROXY_PATH_LENGTH_EXCEEDED:
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| 101 | return "proxy path length constraint exceeded";
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| 102 | case X509_V_ERR_KEYUSAGE_NO_DIGITAL_SIGNATURE:
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| 103 | return "key usage does not include digital signature";
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| 104 | case X509_V_ERR_PROXY_CERTIFICATES_NOT_ALLOWED:
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| 105 | return
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| 106 | "proxy certificates not allowed, please set the appropriate flag";
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| 107 | case X509_V_ERR_INVALID_EXTENSION:
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| 108 | return "invalid or inconsistent certificate extension";
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| 109 | case X509_V_ERR_INVALID_POLICY_EXTENSION:
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| 110 | return "invalid or inconsistent certificate policy extension";
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| 111 | case X509_V_ERR_NO_EXPLICIT_POLICY:
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| 112 | return "no explicit policy";
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| 113 | case X509_V_ERR_DIFFERENT_CRL_SCOPE:
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| 114 | return "Different CRL scope";
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| 115 | case X509_V_ERR_UNSUPPORTED_EXTENSION_FEATURE:
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| 116 | return "Unsupported extension feature";
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| 117 | case X509_V_ERR_UNNESTED_RESOURCE:
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| 118 | return "RFC 3779 resource not subset of parent's resources";
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| 119 | case X509_V_ERR_PERMITTED_VIOLATION:
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| 120 | return "permitted subtree violation";
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| 121 | case X509_V_ERR_EXCLUDED_VIOLATION:
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| 122 | return "excluded subtree violation";
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| 123 | case X509_V_ERR_SUBTREE_MINMAX:
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| 124 | return "name constraints minimum and maximum not supported";
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| 125 | case X509_V_ERR_APPLICATION_VERIFICATION:
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| 126 | return "application verification failure";
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| 127 | case X509_V_ERR_UNSUPPORTED_CONSTRAINT_TYPE:
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| 128 | return "unsupported name constraint type";
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| 129 | case X509_V_ERR_UNSUPPORTED_CONSTRAINT_SYNTAX:
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| 130 | return "unsupported or invalid name constraint syntax";
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| 131 | case X509_V_ERR_UNSUPPORTED_NAME_SYNTAX:
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| 132 | return "unsupported or invalid name syntax";
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| 133 | case X509_V_ERR_CRL_PATH_VALIDATION_ERROR:
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| 134 | return "CRL path validation error";
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| 135 | case X509_V_ERR_PATH_LOOP:
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| 136 | return "Path Loop";
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| 137 | case X509_V_ERR_SUITE_B_INVALID_VERSION:
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| 138 | return "Suite B: certificate version invalid";
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| 139 | case X509_V_ERR_SUITE_B_INVALID_ALGORITHM:
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| 140 | return "Suite B: invalid public key algorithm";
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| 141 | case X509_V_ERR_SUITE_B_INVALID_CURVE:
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| 142 | return "Suite B: invalid ECC curve";
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| 143 | case X509_V_ERR_SUITE_B_INVALID_SIGNATURE_ALGORITHM:
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| 144 | return "Suite B: invalid signature algorithm";
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| 145 | case X509_V_ERR_SUITE_B_LOS_NOT_ALLOWED:
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| 146 | return "Suite B: curve not allowed for this LOS";
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| 147 | case X509_V_ERR_SUITE_B_CANNOT_SIGN_P_384_WITH_P_256:
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| 148 | return "Suite B: cannot sign P-384 with P-256";
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| 149 | case X509_V_ERR_HOSTNAME_MISMATCH:
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| 150 | return "Hostname mismatch";
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| 151 | case X509_V_ERR_EMAIL_MISMATCH:
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| 152 | return "Email address mismatch";
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| 153 | case X509_V_ERR_IP_ADDRESS_MISMATCH:
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| 154 | return "IP address mismatch";
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| 155 | case X509_V_ERR_DANE_NO_MATCH:
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| 156 | return "No matching DANE TLSA records";
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| 157 | case X509_V_ERR_EE_KEY_TOO_SMALL:
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| 158 | return "EE certificate key too weak";
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| 159 | case X509_V_ERR_CA_KEY_TOO_SMALL:
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| 160 | return "CA certificate key too weak";
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| 161 | case X509_V_ERR_CA_MD_TOO_WEAK:
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| 162 | return "CA signature digest algorithm too weak";
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| 163 | case X509_V_ERR_INVALID_CALL:
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| 164 | return "Invalid certificate verification context";
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| 165 | case X509_V_ERR_STORE_LOOKUP:
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| 166 | return "Issuer certificate lookup error";
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| 167 | case X509_V_ERR_NO_VALID_SCTS:
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| 168 | return "Certificate Transparency required, but no valid SCTs found";
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| 169 | case X509_V_ERR_PROXY_SUBJECT_NAME_VIOLATION:
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| 170 | return "proxy subject name violation";
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| 171 | case X509_V_ERR_OCSP_VERIFY_NEEDED:
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| 172 | return "OCSP verification needed";
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| 173 | case X509_V_ERR_OCSP_VERIFY_FAILED:
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| 174 | return "OCSP verification failed";
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| 175 | case X509_V_ERR_OCSP_CERT_UNKNOWN:
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| 176 | return "OCSP unknown cert";
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| 177 | case X509_V_ERR_EC_KEY_EXPLICIT_PARAMS:
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| 178 | return "Certificate public key has explicit ECC parameters";
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| 179 |
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| 180 | default:
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| 181 | /* Printing an error number into a static buffer is not thread-safe */
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| 182 | return "unknown certificate verification error";
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| 183 | }
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| 184 | }
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