fuzz/libtasn1_pkix_der_fuzzer.c - third_party/libtasn1 - Git at Google

 /*
  * Copyright(c) 2019 Free Software Foundation, Inc.
  *
  * This file is part of libtasn1.
  *
  * Libtasn1 is free software: you can redistribute it and/or modify
  * it under the terms of the GNU Lesser General Public License as published by
  * the Free Software Foundation, either version 3 of the License, or
  * (at your option) any later version.
  *
  * Libtasn1 is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public License
  * along with libtasn1.  If not, see <https://www.gnu.org/licenses/>.
  *
  * This fuzzer is testing arbitrary DER input data with GnuTLS's ASN.1 definition (lib/pkix.asn).
  * So, any issues found here likely have a real world impact on every software using libgnutls.
  */

 #include <config.h>

 #include <assert.h> // assert
 #include <stdlib.h> // malloc, free
 #include <string.h> // strcmp, memcpy

 #include "libtasn1.h"
 #include "fuzzer.h"

 /*
  * This is the ASN.1 definition array used by GnuTLS.
  * It is created from lib/pkix.asn over at the GnuTLS project.
  */
 static const asn1_static_node pkix_asn1_tab[] = {
   { "PKIX1", 536875024, NULL },
   { NULL, 1073741836, NULL },
   { "PrivateKeyUsagePeriod", 1610612741, NULL },
   { "notBefore", 1610637349, NULL },
   { NULL, 4104, "0"},
   { "notAfter", 536895525, NULL },
   { NULL, 4104, "1"},
   { "AuthorityKeyIdentifier", 1610612741, NULL },
   { "keyIdentifier", 1610637319, NULL },
   { NULL, 4104, "0"},
   { "authorityCertIssuer", 1610637314, "GeneralNames"},
   { NULL, 4104, "1"},
   { "authorityCertSerialNumber", 536895490, "CertificateSerialNumber"},
   { NULL, 4104, "2"},
   { "SubjectKeyIdentifier", 1073741831, NULL },
   { "KeyUsage", 1073741830, NULL },
   { "DirectoryString", 1610612754, NULL },
   { "teletexString", 1612709918, NULL },
   { "MAX", 524298, "1"},
   { "printableString", 1612709919, NULL },
   { "MAX", 524298, "1"},
   { "universalString", 1612709920, NULL },
   { "MAX", 524298, "1"},
   { "utf8String", 1612709922, NULL },
   { "MAX", 524298, "1"},
   { "bmpString", 1612709921, NULL },
   { "MAX", 524298, "1"},
   { "ia5String", 538968093, NULL },
   { "MAX", 524298, "1"},
   { "SubjectAltName", 1073741826, "GeneralNames"},
   { "GeneralNames", 1612709899, NULL },
   { "MAX", 1074266122, "1"},
   { NULL, 2, "GeneralName"},
   { "GeneralName", 1610612754, NULL },
   { "otherName", 1610620930, "AnotherName"},
   { NULL, 4104, "0"},
   { "rfc822Name", 1610620957, NULL },
   { NULL, 4104, "1"},
   { "dNSName", 1610620957, NULL },
   { NULL, 4104, "2"},
   { "x400Address", 1610620941, NULL },
   { NULL, 4104, "3"},
   { "directoryName", 1610620939, NULL },
   { NULL, 1073743880, "4"},
   { NULL, 2, "RelativeDistinguishedName"},
   { "ediPartyName", 1610620941, NULL },
   { NULL, 4104, "5"},
   { "uniformResourceIdentifier", 1610620957, NULL },
   { NULL, 4104, "6"},
   { "iPAddress", 1610620935, NULL },
   { NULL, 4104, "7"},
   { "registeredID", 536879116, NULL },
   { NULL, 4104, "8"},
   { "AnotherName", 1610612741, NULL },
   { "type-id", 1073741836, NULL },
   { "value", 541073421, NULL },
   { NULL, 1073743880, "0"},
   { "type-id", 1, NULL },
   { "IssuerAltName", 1073741826, "GeneralNames"},
   { "BasicConstraints", 1610612741, NULL },
   { "cA", 1610645508, NULL },
   { NULL, 131081, NULL },
   { "pathLenConstraint", 537411587, NULL },
   { "0", 10, "MAX"},
   { "CRLDistributionPoints", 1612709899, NULL },
   { "MAX", 1074266122, "1"},
   { NULL, 2, "DistributionPoint"},
   { "DistributionPoint", 1610612741, NULL },
   { "distributionPoint", 1610637314, "DistributionPointName"},
   { NULL, 2056, "0"},
   { "reasons", 1610637314, "ReasonFlags"},
   { NULL, 4104, "1"},
   { "cRLIssuer", 536895490, "GeneralNames"},
   { NULL, 4104, "2"},
   { "DistributionPointName", 1610612754, NULL },
   { "fullName", 1610620930, "GeneralNames"},
   { NULL, 4104, "0"},
   { "nameRelativeToCRLIssuer", 536879106, "RelativeDistinguishedName"},
   { NULL, 4104, "1"},
   { "ReasonFlags", 1073741830, NULL },
   { "ExtKeyUsageSyntax", 1612709899, NULL },
   { "MAX", 1074266122, "1"},
   { NULL, 12, NULL },
   { "AuthorityInfoAccessSyntax", 1612709899, NULL },
   { "MAX", 1074266122, "1"},
   { NULL, 2, "AccessDescription"},
   { "AccessDescription", 1610612741, NULL },
   { "accessMethod", 1073741836, NULL },
   { "accessLocation", 2, "GeneralName"},
   { "Attribute", 1610612741, NULL },
   { "type", 1073741836, NULL },
   { "values", 536870927, NULL },
   { NULL, 13, NULL },
   { "AttributeTypeAndValue", 1610612741, NULL },
   { "type", 1073741836, NULL },
   { "value", 13, NULL },
   { "Name", 1610612754, NULL },
   { "rdnSequence", 536870923, NULL },
   { NULL, 2, "RelativeDistinguishedName"},
   { "DistinguishedName", 1610612747, NULL },
   { NULL, 2, "RelativeDistinguishedName"},
   { "RelativeDistinguishedName", 1612709903, NULL },
   { "MAX", 1074266122, "1"},
   { NULL, 2, "AttributeTypeAndValue"},
   { "Certificate", 1610612741, NULL },
   { "tbsCertificate", 1073741826, "TBSCertificate"},
   { "signatureAlgorithm", 1073741826, "AlgorithmIdentifier"},
   { "signature", 6, NULL },
   { "TBSCertificate", 1610612741, NULL },
   { "version", 1610653699, NULL },
   { NULL, 1073741833, "0"},
   { NULL, 2056, "0"},
   { "serialNumber", 1073741826, "CertificateSerialNumber"},
   { "signature", 1073741826, "AlgorithmIdentifier"},
   { "issuer", 1073741826, "Name"},
   { "validity", 1073741826, "Validity"},
   { "subject", 1073741826, "Name"},
   { "subjectPublicKeyInfo", 1073741826, "SubjectPublicKeyInfo"},
   { "issuerUniqueID", 1610637314, "UniqueIdentifier"},
   { NULL, 4104, "1"},
   { "subjectUniqueID", 1610637314, "UniqueIdentifier"},
   { NULL, 4104, "2"},
   { "extensions", 536895490, "Extensions"},
   { NULL, 2056, "3"},
   { "CertificateSerialNumber", 1073741827, NULL },
   { "Validity", 1610612741, NULL },
   { "notBefore", 1073741826, "Time"},
   { "notAfter", 2, "Time"},
   { "Time", 1610612754, NULL },
   { "utcTime", 1073741860, NULL },
   { "generalTime", 37, NULL },
   { "UniqueIdentifier", 1073741830, NULL },
   { "SubjectPublicKeyInfo", 1610612741, NULL },
   { "algorithm", 1073741826, "AlgorithmIdentifier"},
   { "subjectPublicKey", 6, NULL },
   { "Extensions", 1612709899, NULL },
   { "MAX", 1074266122, "1"},
   { NULL, 2, "Extension"},
   { "Extension", 1610612741, NULL },
   { "extnID", 1073741836, NULL },
   { "critical", 1610645508, NULL },
   { NULL, 131081, NULL },
   { "extnValue", 7, NULL },
   { "CertificateList", 1610612741, NULL },
   { "tbsCertList", 1073741826, "TBSCertList"},
   { "signatureAlgorithm", 1073741826, "AlgorithmIdentifier"},
   { "signature", 6, NULL },
   { "TBSCertList", 1610612741, NULL },
   { "version", 1073758211, NULL },
   { "signature", 1073741826, "AlgorithmIdentifier"},
   { "issuer", 1073741826, "Name"},
   { "thisUpdate", 1073741826, "Time"},
   { "nextUpdate", 1073758210, "Time"},
   { "revokedCertificates", 1610629131, NULL },
   { NULL, 536870917, NULL },
   { "userCertificate", 1073741826, "CertificateSerialNumber"},
   { "revocationDate", 1073741826, "Time"},
   { "crlEntryExtensions", 16386, "Extensions"},
   { "crlExtensions", 536895490, "Extensions"},
   { NULL, 2056, "0"},
   { "AlgorithmIdentifier", 1610612741, NULL },
   { "algorithm", 1073741836, NULL },
   { "parameters", 541081613, NULL },
   { "algorithm", 1, NULL },
   { "Dss-Sig-Value", 1610612741, NULL },
   { "r", 1073741827, NULL },
   { "s", 3, NULL },
   { "Dss-Parms", 1610612741, NULL },
   { "p", 1073741827, NULL },
   { "q", 1073741827, NULL },
   { "g", 3, NULL },
   { "pkcs-7-ContentInfo", 1610612741, NULL },
   { "contentType", 1073741836, NULL },
   { "content", 541073421, NULL },
   { NULL, 1073743880, "0"},
   { "contentType", 1, NULL },
   { "pkcs-7-DigestInfo", 1610612741, NULL },
   { "digestAlgorithm", 1073741826, "AlgorithmIdentifier"},
   { "digest", 7, NULL },
   { "pkcs-7-SignedData", 1610612741, NULL },
   { "version", 1073741827, NULL },
   { "digestAlgorithms", 1073741826, "pkcs-7-DigestAlgorithmIdentifiers"},
   { "encapContentInfo", 1073741826, "pkcs-7-EncapsulatedContentInfo"},
   { "certificates", 1610637314, "pkcs-7-CertificateSet"},
   { NULL, 4104, "0"},
   { "crls", 1610637314, "pkcs-7-CertificateRevocationLists"},
   { NULL, 4104, "1"},
   { "signerInfos", 2, "pkcs-7-SignerInfos"},
   { "pkcs-7-DigestAlgorithmIdentifiers", 1610612751, NULL },
   { NULL, 2, "AlgorithmIdentifier"},
   { "pkcs-7-EncapsulatedContentInfo", 1610612741, NULL },
   { "eContentType", 1073741836, NULL },
   { "eContent", 536895501, NULL },
   { NULL, 2056, "0"},
   { "pkcs-7-CertificateRevocationLists", 1610612751, NULL },
   { NULL, 13, NULL },
   { "pkcs-7-CertificateChoices", 1610612754, NULL },
   { "certificate", 13, NULL },
   { "pkcs-7-CertificateSet", 1610612751, NULL },
   { NULL, 2, "pkcs-7-CertificateChoices"},
   { "IssuerAndSerialNumber", 1610612741, NULL },
   { "issuer", 1073741826, "Name"},
   { "serialNumber", 2, "CertificateSerialNumber"},
   { "pkcs-7-SignerInfo", 1610612741, NULL },
   { "version", 1073741827, NULL },
   { "sid", 1073741826, "SignerIdentifier"},
   { "digestAlgorithm", 1073741826, "AlgorithmIdentifier"},
   { "signedAttrs", 1610637314, "SignedAttributes"},
   { NULL, 4104, "0"},
   { "signatureAlgorithm", 1073741826, "AlgorithmIdentifier"},
   { "signature", 1073741831, NULL },
   { "unsignedAttrs", 536895490, "SignedAttributes"},
   { NULL, 4104, "1"},
   { "SignedAttributes", 1612709903, NULL },
   { "MAX", 1074266122, "1"},
   { NULL, 2, "Attribute"},
   { "SignerIdentifier", 1610612754, NULL },
   { "issuerAndSerialNumber", 1073741826, "IssuerAndSerialNumber"},
   { "subjectKeyIdentifier", 536879111, NULL },
   { NULL, 4104, "0"},
   { "pkcs-7-SignerInfos", 1610612751, NULL },
   { NULL, 2, "pkcs-7-SignerInfo"},
   { "pkcs-10-CertificationRequestInfo", 1610612741, NULL },
   { "version", 1073741827, NULL },
   { "subject", 1073741826, "Name"},
   { "subjectPKInfo", 1073741826, "SubjectPublicKeyInfo"},
   { "attributes", 536879106, "Attributes"},
   { NULL, 4104, "0"},
   { "Attributes", 1610612751, NULL },
   { NULL, 2, "Attribute"},
   { "pkcs-10-CertificationRequest", 1610612741, NULL },
   { "certificationRequestInfo", 1073741826, "pkcs-10-CertificationRequestInfo"},
   { "signatureAlgorithm", 1073741826, "AlgorithmIdentifier"},
   { "signature", 6, NULL },
   { "pkcs-9-at-challengePassword", 1879048204, NULL },
   { "iso", 1073741825, "1"},
   { "member-body", 1073741825, "2"},
   { "us", 1073741825, "840"},
   { "rsadsi", 1073741825, "113549"},
   { "pkcs", 1073741825, "1"},
   { NULL, 1073741825, "9"},
   { NULL, 1, "7"},
   { "pkcs-9-challengePassword", 1610612754, NULL },
   { "printableString", 1073741855, NULL },
   { "utf8String", 34, NULL },
   { "pkcs-9-localKeyId", 1073741831, NULL },
   { "pkcs-8-PrivateKeyInfo", 1610612741, NULL },
   { "version", 1073741827, NULL },
   { "privateKeyAlgorithm", 1073741826, "AlgorithmIdentifier"},
   { "privateKey", 1073741831, NULL },
   { "attributes", 536895490, "Attributes"},
   { NULL, 4104, "0"},
   { "pkcs-8-EncryptedPrivateKeyInfo", 1610612741, NULL },
   { "encryptionAlgorithm", 1073741826, "AlgorithmIdentifier"},
   { "encryptedData", 2, "pkcs-8-EncryptedData"},
   { "pkcs-8-EncryptedData", 1073741831, NULL },
   { "pkcs-5-des-CBC-params", 1612709895, NULL },
   { NULL, 1048586, "8"},
   { "pkcs-5-des-EDE3-CBC-params", 1612709895, NULL },
   { NULL, 1048586, "8"},
   { "pkcs-5-aes128-CBC-params", 1612709895, NULL },
   { NULL, 1048586, "16"},
   { "pkcs-5-aes192-CBC-params", 1612709895, NULL },
   { NULL, 1048586, "16"},
   { "pkcs-5-aes256-CBC-params", 1612709895, NULL },
   { NULL, 1048586, "16"},
   { "Gost28147-89-Parameters", 1610612741, NULL },
   { "iv", 1073741831, NULL },
   { "encryptionParamSet", 12, NULL },
   { "pkcs-5-PBE-params", 1610612741, NULL },
   { "salt", 1073741831, NULL },
   { "iterationCount", 3, NULL },
   { "pkcs-5-PBES2-params", 1610612741, NULL },
   { "keyDerivationFunc", 1073741826, "AlgorithmIdentifier"},
   { "encryptionScheme", 2, "AlgorithmIdentifier"},
   { "pkcs-5-PBKDF2-params", 1610612741, NULL },
   { "salt", 1610612754, NULL },
   { "specified", 1073741831, NULL },
   { "otherSource", 2, "AlgorithmIdentifier"},
   { "iterationCount", 1611137027, NULL },
   { "1", 10, "MAX"},
   { "keyLength", 1611153411, NULL },
   { "1", 10, "MAX"},
   { "prf", 16386, "AlgorithmIdentifier"},
   { "pkcs-12-PFX", 1610612741, NULL },
   { "version", 1610874883, NULL },
   { "v3", 1, "3"},
   { "authSafe", 1073741826, "pkcs-7-ContentInfo"},
   { "macData", 16386, "pkcs-12-MacData"},
   { "pkcs-12-PbeParams", 1610612741, NULL },
   { "salt", 1073741831, NULL },
   { "iterations", 3, NULL },
   { "pkcs-12-MacData", 1610612741, NULL },
   { "mac", 1073741826, "pkcs-7-DigestInfo"},
   { "macSalt", 1073741831, NULL },
   { "iterations", 536903683, NULL },
   { NULL, 9, "1"},
   { "pkcs-12-AuthenticatedSafe", 1610612747, NULL },
   { NULL, 2, "pkcs-7-ContentInfo"},
   { "pkcs-12-SafeContents", 1610612747, NULL },
   { NULL, 2, "pkcs-12-SafeBag"},
   { "pkcs-12-SafeBag", 1610612741, NULL },
   { "bagId", 1073741836, NULL },
   { "bagValue", 1614815245, NULL },
   { NULL, 1073743880, "0"},
   { "badId", 1, NULL },
   { "bagAttributes", 536887311, NULL },
   { NULL, 2, "Attribute"},
   { "pkcs-12-CertBag", 1610612741, NULL },
   { "certId", 1073741836, NULL },
   { "certValue", 541073421, NULL },
   { NULL, 1073743880, "0"},
   { "certId", 1, NULL },
   { "pkcs-12-CRLBag", 1610612741, NULL },
   { "crlId", 1073741836, NULL },
   { "crlValue", 541073421, NULL },
   { NULL, 1073743880, "0"},
   { "crlId", 1, NULL },
   { "pkcs-12-SecretBag", 1610612741, NULL },
   { "secretTypeId", 1073741836, NULL },
   { "secretValue", 541073421, NULL },
   { NULL, 1073743880, "0"},
   { "secretTypeId", 1, NULL },
   { "pkcs-7-Data", 1073741831, NULL },
   { "pkcs-7-EncryptedData", 1610612741, NULL },
   { "version", 1073741827, NULL },
   { "encryptedContentInfo", 1073741826, "pkcs-7-EncryptedContentInfo"},
   { "unprotectedAttrs", 536895490, "pkcs-7-UnprotectedAttributes"},
   { NULL, 4104, "1"},
   { "pkcs-7-EncryptedContentInfo", 1610612741, NULL },
   { "contentType", 1073741836, NULL },
   { "contentEncryptionAlgorithm", 1073741826, "pkcs-7-ContentEncryptionAlgorithmIdentifier"},
   { "encryptedContent", 536895495, NULL },
   { NULL, 4104, "0"},
   { "pkcs-7-ContentEncryptionAlgorithmIdentifier", 1073741826, "AlgorithmIdentifier"},
   { "pkcs-7-UnprotectedAttributes", 1612709903, NULL },
   { "MAX", 1074266122, "1"},
   { NULL, 2, "Attribute"},
   { "ProxyCertInfo", 1610612741, NULL },
   { "pCPathLenConstraint", 1611153411, NULL },
   { "0", 10, "MAX"},
   { "proxyPolicy", 2, "ProxyPolicy"},
   { "ProxyPolicy", 1610612741, NULL },
   { "policyLanguage", 1073741836, NULL },
   { "policy", 16391, NULL },
   { "certificatePolicies", 1612709899, NULL },
   { "MAX", 1074266122, "1"},
   { NULL, 2, "PolicyInformation"},
   { "PolicyInformation", 1610612741, NULL },
   { "policyIdentifier", 1073741836, NULL },
   { "policyQualifiers", 538984459, NULL },
   { "MAX", 1074266122, "1"},
   { NULL, 2, "PolicyQualifierInfo"},
   { "PolicyQualifierInfo", 1610612741, NULL },
   { "policyQualifierId", 1073741836, NULL },
   { "qualifier", 541065229, NULL },
   { "policyQualifierId", 1, NULL },
   { "CPSuri", 1073741853, NULL },
   { "UserNotice", 1610612741, NULL },
   { "noticeRef", 1073758210, "NoticeReference"},
   { "explicitText", 16386, "DisplayText"},
   { "NoticeReference", 1610612741, NULL },
   { "organization", 1073741826, "DisplayText"},
   { "noticeNumbers", 536870923, NULL },
   { NULL, 3, NULL },
   { "DisplayText", 1610612754, NULL },
   { "ia5String", 1612709917, NULL },
   { "200", 524298, "1"},
   { "visibleString", 1612709923, NULL },
   { "200", 524298, "1"},
   { "bmpString", 1612709921, NULL },
   { "200", 524298, "1"},
   { "utf8String", 538968098, NULL },
   { "200", 524298, "1"},
   { "OCSPRequest", 1610612741, NULL },
   { "tbsRequest", 1073741826, "TBSRequest"},
   { "optionalSignature", 536895490, "Signature"},
   { NULL, 2056, "0"},
   { "TBSRequest", 1610612741, NULL },
   { "version", 1610653699, NULL },
   { NULL, 1073741833, "0"},
   { NULL, 2056, "0"},
   { "requestorName", 1610637314, "GeneralName"},
   { NULL, 2056, "1"},
   { "requestList", 1610612747, NULL },
   { NULL, 2, "Request"},
   { "requestExtensions", 536895490, "Extensions"},
   { NULL, 2056, "2"},
   { "Signature", 1610612741, NULL },
   { "signatureAlgorithm", 1073741826, "AlgorithmIdentifier"},
   { "signature", 1073741830, NULL },
   { "certs", 536895499, NULL },
   { NULL, 1073743880, "0"},
   { NULL, 2, "Certificate"},
   { "Request", 1610612741, NULL },
   { "reqCert", 1073741826, "CertID"},
   { "singleRequestExtensions", 536895490, "Extensions"},
   { NULL, 2056, "0"},
   { "CertID", 1610612741, NULL },
   { "hashAlgorithm", 1073741826, "AlgorithmIdentifier"},
   { "issuerNameHash", 1073741831, NULL },
   { "issuerKeyHash", 1073741831, NULL },
   { "serialNumber", 2, "CertificateSerialNumber"},
   { "OCSPResponse", 1610612741, NULL },
   { "responseStatus", 1073741826, "OCSPResponseStatus"},
   { "responseBytes", 536895490, "ResponseBytes"},
   { NULL, 2056, "0"},
   { "OCSPResponseStatus", 1610874901, NULL },
   { "successful", 1073741825, "0"},
   { "malformedRequest", 1073741825, "1"},
   { "internalError", 1073741825, "2"},
   { "tryLater", 1073741825, "3"},
   { "sigRequired", 1073741825, "5"},
   { "unauthorized", 1, "6"},
   { "ResponseBytes", 1610612741, NULL },
   { "responseType", 1073741836, NULL },
   { "response", 7, NULL },
   { "BasicOCSPResponse", 1610612741, NULL },
   { "tbsResponseData", 1073741826, "ResponseData"},
   { "signatureAlgorithm", 1073741826, "AlgorithmIdentifier"},
   { "signature", 1073741830, NULL },
   { "certs", 536895499, NULL },
   { NULL, 1073743880, "0"},
   { NULL, 2, "Certificate"},
   { "ResponseData", 1610612741, NULL },
   { "version", 1610653699, NULL },
   { NULL, 1073741833, "0"},
   { NULL, 2056, "0"},
   { "responderID", 1073741826, "ResponderID"},
   { "producedAt", 1073741861, NULL },
   { "responses", 1610612747, NULL },
   { NULL, 2, "SingleResponse"},
   { "responseExtensions", 536895490, "Extensions"},
   { NULL, 2056, "1"},
   { "ResponderID", 1610612754, NULL },
   { "byName", 1610620939, NULL },
   { NULL, 1073743880, "1"},
   { NULL, 2, "RelativeDistinguishedName"},
   { "byKey", 536879111, NULL },
   { NULL, 2056, "2"},
   { "SingleResponse", 1610612741, NULL },
   { "certID", 1073741826, "CertID"},
   { "certStatus", 1073741826, "CertStatus"},
   { "thisUpdate", 1073741861, NULL },
   { "nextUpdate", 1610637349, NULL },
   { NULL, 2056, "0"},
   { "singleExtensions", 536895490, "Extensions"},
   { NULL, 2056, "1"},
   { "CertStatus", 1610612754, NULL },
   { "good", 1610620948, NULL },
   { NULL, 4104, "0"},
   { "revoked", 1610620930, "RevokedInfo"},
   { NULL, 4104, "1"},
   { "unknown", 536879106, "UnknownInfo"},
   { NULL, 4104, "2"},
   { "RevokedInfo", 1610612741, NULL },
   { "revocationTime", 1073741861, NULL },
   { "revocationReason", 537157653, NULL },
   { NULL, 1073743880, "0"},
   { "unspecified", 1, "0"},
   { "UnknownInfo", 1073741844, NULL },
   { "NameConstraints", 1610612741, NULL },
   { "permittedSubtrees", 1610637314, "GeneralSubtrees"},
   { NULL, 4104, "0"},
   { "excludedSubtrees", 536895490, "GeneralSubtrees"},
   { NULL, 4104, "1"},
   { "GeneralSubtrees", 1612709899, NULL },
   { "MAX", 1074266122, "1"},
   { NULL, 2, "GeneralSubtree"},
   { "GeneralSubtree", 1610612741, NULL },
   { "base", 1073741826, "GeneralName"},
   { "minimum", 1610653699, NULL },
   { NULL, 1073741833, "0"},
   { NULL, 4104, "0"},
   { "maximum", 536895491, NULL },
   { NULL, 4104, "1"},
   { "TlsFeatures", 536870923, NULL },
   { NULL, 3, NULL },
   { NULL, 0, NULL }
 };

 int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
 {
 	static asn1_node _gnutls_pkix1_asn = NULL;
 	static int first = 1;
 	asn1_node dn;
 	int res, start, end;

 	if (size > 10000) // same as max_len = 10000 in .options file
 		return 0;

 	if (first) {
 		first = 0;

 		// from _gnutls_global_init()
 		res = asn1_array2tree(pkix_asn1_tab, &_gnutls_pkix1_asn, NULL);
 		assert(res == ASN1_SUCCESS);
 	}

 	// from cert_get_issuer_dn()
 	if ((res = asn1_create_element(_gnutls_pkix1_asn, "PKIX1.Certificate", &dn)) != ASN1_SUCCESS) {
 		goto out;
 	}

 	// from cert_get_issuer_dn()
 	res = asn1_der_decoding(&dn, data, size, NULL);
 	if (res != ASN1_SUCCESS) {
 		goto out;
 	}

 	// from cert_get_issuer_dn()
 	res = asn1_der_decoding_startEnd(dn, data, size, "tbsCertificate.issuer", &start, &end);
 	if (res != ASN1_SUCCESS) {
 		goto out;
 	}

 out:
 	asn1_delete_structure(&dn);

 	return 0;
 }
	/*
	* Copyright(c) 2019 Free Software Foundation, Inc.
	*
	* This file is part of libtasn1.
	*
	* Libtasn1 is free software: you can redistribute it and/or modify
	* it under the terms of the GNU Lesser General Public License as published by
	* the Free Software Foundation, either version 3 of the License, or
	* (at your option) any later version.
	*
	* Libtasn1 is distributed in the hope that it will be useful,
	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	* GNU Lesser General Public License for more details.
	*
	* You should have received a copy of the GNU Lesser General Public License
	* along with libtasn1. If not, see <https://www.gnu.org/licenses/>.
	*
	* This fuzzer is testing arbitrary DER input data with GnuTLS's ASN.1 definition (lib/pkix.asn).
	* So, any issues found here likely have a real world impact on every software using libgnutls.
	*/

	#include <config.h>

	#include <assert.h> // assert
	#include <stdlib.h> // malloc, free
	#include <string.h> // strcmp, memcpy

	#include "libtasn1.h"
	#include "fuzzer.h"

	/*
	* This is the ASN.1 definition array used by GnuTLS.
	* It is created from lib/pkix.asn over at the GnuTLS project.
	*/
	static const asn1_static_node pkix_asn1_tab[] = {
	{ "PKIX1", 536875024, NULL },
	{ NULL, 1073741836, NULL },
	{ "PrivateKeyUsagePeriod", 1610612741, NULL },
	{ "notBefore", 1610637349, NULL },
	{ NULL, 4104, "0"},
	{ "notAfter", 536895525, NULL },
	{ NULL, 4104, "1"},
	{ "AuthorityKeyIdentifier", 1610612741, NULL },
	{ "keyIdentifier", 1610637319, NULL },
	{ NULL, 4104, "0"},
	{ "authorityCertIssuer", 1610637314, "GeneralNames"},
	{ NULL, 4104, "1"},
	{ "authorityCertSerialNumber", 536895490, "CertificateSerialNumber"},
	{ NULL, 4104, "2"},
	{ "SubjectKeyIdentifier", 1073741831, NULL },
	{ "KeyUsage", 1073741830, NULL },
	{ "DirectoryString", 1610612754, NULL },
	{ "teletexString", 1612709918, NULL },
	{ "MAX", 524298, "1"},
	{ "printableString", 1612709919, NULL },
	{ "MAX", 524298, "1"},
	{ "universalString", 1612709920, NULL },
	{ "MAX", 524298, "1"},
	{ "utf8String", 1612709922, NULL },
	{ "MAX", 524298, "1"},
	{ "bmpString", 1612709921, NULL },
	{ "MAX", 524298, "1"},
	{ "ia5String", 538968093, NULL },
	{ "MAX", 524298, "1"},
	{ "SubjectAltName", 1073741826, "GeneralNames"},
	{ "GeneralNames", 1612709899, NULL },
	{ "MAX", 1074266122, "1"},
	{ NULL, 2, "GeneralName"},
	{ "GeneralName", 1610612754, NULL },
	{ "otherName", 1610620930, "AnotherName"},
	{ NULL, 4104, "0"},
	{ "rfc822Name", 1610620957, NULL },
	{ NULL, 4104, "1"},
	{ "dNSName", 1610620957, NULL },
	{ NULL, 4104, "2"},
	{ "x400Address", 1610620941, NULL },
	{ NULL, 4104, "3"},
	{ "directoryName", 1610620939, NULL },
	{ NULL, 1073743880, "4"},
	{ NULL, 2, "RelativeDistinguishedName"},
	{ "ediPartyName", 1610620941, NULL },
	{ NULL, 4104, "5"},
	{ "uniformResourceIdentifier", 1610620957, NULL },
	{ NULL, 4104, "6"},
	{ "iPAddress", 1610620935, NULL },
	{ NULL, 4104, "7"},
	{ "registeredID", 536879116, NULL },
	{ NULL, 4104, "8"},
	{ "AnotherName", 1610612741, NULL },
	{ "type-id", 1073741836, NULL },
	{ "value", 541073421, NULL },
	{ NULL, 1073743880, "0"},
	{ "type-id", 1, NULL },
	{ "IssuerAltName", 1073741826, "GeneralNames"},
	{ "BasicConstraints", 1610612741, NULL },
	{ "cA", 1610645508, NULL },
	{ NULL, 131081, NULL },
	{ "pathLenConstraint", 537411587, NULL },
	{ "0", 10, "MAX"},
	{ "CRLDistributionPoints", 1612709899, NULL },
	{ "MAX", 1074266122, "1"},
	{ NULL, 2, "DistributionPoint"},
	{ "DistributionPoint", 1610612741, NULL },
	{ "distributionPoint", 1610637314, "DistributionPointName"},
	{ NULL, 2056, "0"},
	{ "reasons", 1610637314, "ReasonFlags"},
	{ NULL, 4104, "1"},
	{ "cRLIssuer", 536895490, "GeneralNames"},
	{ NULL, 4104, "2"},
	{ "DistributionPointName", 1610612754, NULL },
	{ "fullName", 1610620930, "GeneralNames"},
	{ NULL, 4104, "0"},
	{ "nameRelativeToCRLIssuer", 536879106, "RelativeDistinguishedName"},
	{ NULL, 4104, "1"},
	{ "ReasonFlags", 1073741830, NULL },
	{ "ExtKeyUsageSyntax", 1612709899, NULL },
	{ "MAX", 1074266122, "1"},
	{ NULL, 12, NULL },
	{ "AuthorityInfoAccessSyntax", 1612709899, NULL },
	{ "MAX", 1074266122, "1"},
	{ NULL, 2, "AccessDescription"},
	{ "AccessDescription", 1610612741, NULL },
	{ "accessMethod", 1073741836, NULL },
	{ "accessLocation", 2, "GeneralName"},
	{ "Attribute", 1610612741, NULL },
	{ "type", 1073741836, NULL },
	{ "values", 536870927, NULL },
	{ NULL, 13, NULL },
	{ "AttributeTypeAndValue", 1610612741, NULL },
	{ "type", 1073741836, NULL },
	{ "value", 13, NULL },
	{ "Name", 1610612754, NULL },
	{ "rdnSequence", 536870923, NULL },
	{ NULL, 2, "RelativeDistinguishedName"},
	{ "DistinguishedName", 1610612747, NULL },
	{ NULL, 2, "RelativeDistinguishedName"},
	{ "RelativeDistinguishedName", 1612709903, NULL },
	{ "MAX", 1074266122, "1"},
	{ NULL, 2, "AttributeTypeAndValue"},
	{ "Certificate", 1610612741, NULL },
	{ "tbsCertificate", 1073741826, "TBSCertificate"},
	{ "signatureAlgorithm", 1073741826, "AlgorithmIdentifier"},
	{ "signature", 6, NULL },
	{ "TBSCertificate", 1610612741, NULL },
	{ "version", 1610653699, NULL },
	{ NULL, 1073741833, "0"},
	{ NULL, 2056, "0"},
	{ "serialNumber", 1073741826, "CertificateSerialNumber"},
	{ "signature", 1073741826, "AlgorithmIdentifier"},
	{ "issuer", 1073741826, "Name"},
	{ "validity", 1073741826, "Validity"},
	{ "subject", 1073741826, "Name"},
	{ "subjectPublicKeyInfo", 1073741826, "SubjectPublicKeyInfo"},
	{ "issuerUniqueID", 1610637314, "UniqueIdentifier"},
	{ NULL, 4104, "1"},
	{ "subjectUniqueID", 1610637314, "UniqueIdentifier"},
	{ NULL, 4104, "2"},
	{ "extensions", 536895490, "Extensions"},
	{ NULL, 2056, "3"},
	{ "CertificateSerialNumber", 1073741827, NULL },
	{ "Validity", 1610612741, NULL },
	{ "notBefore", 1073741826, "Time"},
	{ "notAfter", 2, "Time"},
	{ "Time", 1610612754, NULL },
	{ "utcTime", 1073741860, NULL },
	{ "generalTime", 37, NULL },
	{ "UniqueIdentifier", 1073741830, NULL },
	{ "SubjectPublicKeyInfo", 1610612741, NULL },
	{ "algorithm", 1073741826, "AlgorithmIdentifier"},
	{ "subjectPublicKey", 6, NULL },
	{ "Extensions", 1612709899, NULL },
	{ "MAX", 1074266122, "1"},
	{ NULL, 2, "Extension"},
	{ "Extension", 1610612741, NULL },
	{ "extnID", 1073741836, NULL },
	{ "critical", 1610645508, NULL },
	{ NULL, 131081, NULL },
	{ "extnValue", 7, NULL },
	{ "CertificateList", 1610612741, NULL },
	{ "tbsCertList", 1073741826, "TBSCertList"},
	{ "signatureAlgorithm", 1073741826, "AlgorithmIdentifier"},
	{ "signature", 6, NULL },
	{ "TBSCertList", 1610612741, NULL },
	{ "version", 1073758211, NULL },
	{ "signature", 1073741826, "AlgorithmIdentifier"},
	{ "issuer", 1073741826, "Name"},
	{ "thisUpdate", 1073741826, "Time"},
	{ "nextUpdate", 1073758210, "Time"},
	{ "revokedCertificates", 1610629131, NULL },
	{ NULL, 536870917, NULL },
	{ "userCertificate", 1073741826, "CertificateSerialNumber"},
	{ "revocationDate", 1073741826, "Time"},
	{ "crlEntryExtensions", 16386, "Extensions"},
	{ "crlExtensions", 536895490, "Extensions"},
	{ NULL, 2056, "0"},
	{ "AlgorithmIdentifier", 1610612741, NULL },
	{ "algorithm", 1073741836, NULL },
	{ "parameters", 541081613, NULL },
	{ "algorithm", 1, NULL },
	{ "Dss-Sig-Value", 1610612741, NULL },
	{ "r", 1073741827, NULL },
	{ "s", 3, NULL },
	{ "Dss-Parms", 1610612741, NULL },
	{ "p", 1073741827, NULL },
	{ "q", 1073741827, NULL },
	{ "g", 3, NULL },
	{ "pkcs-7-ContentInfo", 1610612741, NULL },
	{ "contentType", 1073741836, NULL },
	{ "content", 541073421, NULL },
	{ NULL, 1073743880, "0"},
	{ "contentType", 1, NULL },
	{ "pkcs-7-DigestInfo", 1610612741, NULL },
	{ "digestAlgorithm", 1073741826, "AlgorithmIdentifier"},
	{ "digest", 7, NULL },
	{ "pkcs-7-SignedData", 1610612741, NULL },
	{ "version", 1073741827, NULL },
	{ "digestAlgorithms", 1073741826, "pkcs-7-DigestAlgorithmIdentifiers"},
	{ "encapContentInfo", 1073741826, "pkcs-7-EncapsulatedContentInfo"},
	{ "certificates", 1610637314, "pkcs-7-CertificateSet"},
	{ NULL, 4104, "0"},
	{ "crls", 1610637314, "pkcs-7-CertificateRevocationLists"},
	{ NULL, 4104, "1"},
	{ "signerInfos", 2, "pkcs-7-SignerInfos"},
	{ "pkcs-7-DigestAlgorithmIdentifiers", 1610612751, NULL },
	{ NULL, 2, "AlgorithmIdentifier"},
	{ "pkcs-7-EncapsulatedContentInfo", 1610612741, NULL },
	{ "eContentType", 1073741836, NULL },
	{ "eContent", 536895501, NULL },
	{ NULL, 2056, "0"},
	{ "pkcs-7-CertificateRevocationLists", 1610612751, NULL },
	{ NULL, 13, NULL },
	{ "pkcs-7-CertificateChoices", 1610612754, NULL },
	{ "certificate", 13, NULL },
	{ "pkcs-7-CertificateSet", 1610612751, NULL },
	{ NULL, 2, "pkcs-7-CertificateChoices"},
	{ "IssuerAndSerialNumber", 1610612741, NULL },
	{ "issuer", 1073741826, "Name"},
	{ "serialNumber", 2, "CertificateSerialNumber"},
	{ "pkcs-7-SignerInfo", 1610612741, NULL },
	{ "version", 1073741827, NULL },
	{ "sid", 1073741826, "SignerIdentifier"},
	{ "digestAlgorithm", 1073741826, "AlgorithmIdentifier"},
	{ "signedAttrs", 1610637314, "SignedAttributes"},
	{ NULL, 4104, "0"},
	{ "signatureAlgorithm", 1073741826, "AlgorithmIdentifier"},
	{ "signature", 1073741831, NULL },
	{ "unsignedAttrs", 536895490, "SignedAttributes"},
	{ NULL, 4104, "1"},
	{ "SignedAttributes", 1612709903, NULL },
	{ "MAX", 1074266122, "1"},
	{ NULL, 2, "Attribute"},
	{ "SignerIdentifier", 1610612754, NULL },
	{ "issuerAndSerialNumber", 1073741826, "IssuerAndSerialNumber"},
	{ "subjectKeyIdentifier", 536879111, NULL },
	{ NULL, 4104, "0"},
	{ "pkcs-7-SignerInfos", 1610612751, NULL },
	{ NULL, 2, "pkcs-7-SignerInfo"},
	{ "pkcs-10-CertificationRequestInfo", 1610612741, NULL },
	{ "version", 1073741827, NULL },
	{ "subject", 1073741826, "Name"},
	{ "subjectPKInfo", 1073741826, "SubjectPublicKeyInfo"},
	{ "attributes", 536879106, "Attributes"},
	{ NULL, 4104, "0"},
	{ "Attributes", 1610612751, NULL },
	{ NULL, 2, "Attribute"},
	{ "pkcs-10-CertificationRequest", 1610612741, NULL },
	{ "certificationRequestInfo", 1073741826, "pkcs-10-CertificationRequestInfo"},
	{ "signatureAlgorithm", 1073741826, "AlgorithmIdentifier"},
	{ "signature", 6, NULL },
	{ "pkcs-9-at-challengePassword", 1879048204, NULL },
	{ "iso", 1073741825, "1"},
	{ "member-body", 1073741825, "2"},
	{ "us", 1073741825, "840"},
	{ "rsadsi", 1073741825, "113549"},
	{ "pkcs", 1073741825, "1"},
	{ NULL, 1073741825, "9"},
	{ NULL, 1, "7"},
	{ "pkcs-9-challengePassword", 1610612754, NULL },
	{ "printableString", 1073741855, NULL },
	{ "utf8String", 34, NULL },
	{ "pkcs-9-localKeyId", 1073741831, NULL },
	{ "pkcs-8-PrivateKeyInfo", 1610612741, NULL },
	{ "version", 1073741827, NULL },
	{ "privateKeyAlgorithm", 1073741826, "AlgorithmIdentifier"},
	{ "privateKey", 1073741831, NULL },
	{ "attributes", 536895490, "Attributes"},
	{ NULL, 4104, "0"},
	{ "pkcs-8-EncryptedPrivateKeyInfo", 1610612741, NULL },
	{ "encryptionAlgorithm", 1073741826, "AlgorithmIdentifier"},
	{ "encryptedData", 2, "pkcs-8-EncryptedData"},
	{ "pkcs-8-EncryptedData", 1073741831, NULL },
	{ "pkcs-5-des-CBC-params", 1612709895, NULL },
	{ NULL, 1048586, "8"},
	{ "pkcs-5-des-EDE3-CBC-params", 1612709895, NULL },
	{ NULL, 1048586, "8"},
	{ "pkcs-5-aes128-CBC-params", 1612709895, NULL },
	{ NULL, 1048586, "16"},
	{ "pkcs-5-aes192-CBC-params", 1612709895, NULL },
	{ NULL, 1048586, "16"},
	{ "pkcs-5-aes256-CBC-params", 1612709895, NULL },
	{ NULL, 1048586, "16"},
	{ "Gost28147-89-Parameters", 1610612741, NULL },
	{ "iv", 1073741831, NULL },
	{ "encryptionParamSet", 12, NULL },
	{ "pkcs-5-PBE-params", 1610612741, NULL },
	{ "salt", 1073741831, NULL },
	{ "iterationCount", 3, NULL },
	{ "pkcs-5-PBES2-params", 1610612741, NULL },
	{ "keyDerivationFunc", 1073741826, "AlgorithmIdentifier"},
	{ "encryptionScheme", 2, "AlgorithmIdentifier"},
	{ "pkcs-5-PBKDF2-params", 1610612741, NULL },
	{ "salt", 1610612754, NULL },
	{ "specified", 1073741831, NULL },
	{ "otherSource", 2, "AlgorithmIdentifier"},
	{ "iterationCount", 1611137027, NULL },
	{ "1", 10, "MAX"},
	{ "keyLength", 1611153411, NULL },
	{ "1", 10, "MAX"},
	{ "prf", 16386, "AlgorithmIdentifier"},
	{ "pkcs-12-PFX", 1610612741, NULL },
	{ "version", 1610874883, NULL },
	{ "v3", 1, "3"},
	{ "authSafe", 1073741826, "pkcs-7-ContentInfo"},
	{ "macData", 16386, "pkcs-12-MacData"},
	{ "pkcs-12-PbeParams", 1610612741, NULL },
	{ "salt", 1073741831, NULL },
	{ "iterations", 3, NULL },
	{ "pkcs-12-MacData", 1610612741, NULL },
	{ "mac", 1073741826, "pkcs-7-DigestInfo"},
	{ "macSalt", 1073741831, NULL },
	{ "iterations", 536903683, NULL },
	{ NULL, 9, "1"},
	{ "pkcs-12-AuthenticatedSafe", 1610612747, NULL },
	{ NULL, 2, "pkcs-7-ContentInfo"},
	{ "pkcs-12-SafeContents", 1610612747, NULL },
	{ NULL, 2, "pkcs-12-SafeBag"},
	{ "pkcs-12-SafeBag", 1610612741, NULL },
	{ "bagId", 1073741836, NULL },
	{ "bagValue", 1614815245, NULL },
	{ NULL, 1073743880, "0"},
	{ "badId", 1, NULL },
	{ "bagAttributes", 536887311, NULL },
	{ NULL, 2, "Attribute"},
	{ "pkcs-12-CertBag", 1610612741, NULL },
	{ "certId", 1073741836, NULL },
	{ "certValue", 541073421, NULL },
	{ NULL, 1073743880, "0"},
	{ "certId", 1, NULL },
	{ "pkcs-12-CRLBag", 1610612741, NULL },
	{ "crlId", 1073741836, NULL },
	{ "crlValue", 541073421, NULL },
	{ NULL, 1073743880, "0"},
	{ "crlId", 1, NULL },
	{ "pkcs-12-SecretBag", 1610612741, NULL },
	{ "secretTypeId", 1073741836, NULL },
	{ "secretValue", 541073421, NULL },
	{ NULL, 1073743880, "0"},
	{ "secretTypeId", 1, NULL },
	{ "pkcs-7-Data", 1073741831, NULL },
	{ "pkcs-7-EncryptedData", 1610612741, NULL },
	{ "version", 1073741827, NULL },
	{ "encryptedContentInfo", 1073741826, "pkcs-7-EncryptedContentInfo"},
	{ "unprotectedAttrs", 536895490, "pkcs-7-UnprotectedAttributes"},
	{ NULL, 4104, "1"},
	{ "pkcs-7-EncryptedContentInfo", 1610612741, NULL },
	{ "contentType", 1073741836, NULL },
	{ "contentEncryptionAlgorithm", 1073741826, "pkcs-7-ContentEncryptionAlgorithmIdentifier"},
	{ "encryptedContent", 536895495, NULL },
	{ NULL, 4104, "0"},
	{ "pkcs-7-ContentEncryptionAlgorithmIdentifier", 1073741826, "AlgorithmIdentifier"},
	{ "pkcs-7-UnprotectedAttributes", 1612709903, NULL },
	{ "MAX", 1074266122, "1"},
	{ NULL, 2, "Attribute"},
	{ "ProxyCertInfo", 1610612741, NULL },
	{ "pCPathLenConstraint", 1611153411, NULL },
	{ "0", 10, "MAX"},
	{ "proxyPolicy", 2, "ProxyPolicy"},
	{ "ProxyPolicy", 1610612741, NULL },
	{ "policyLanguage", 1073741836, NULL },
	{ "policy", 16391, NULL },
	{ "certificatePolicies", 1612709899, NULL },
	{ "MAX", 1074266122, "1"},
	{ NULL, 2, "PolicyInformation"},
	{ "PolicyInformation", 1610612741, NULL },
	{ "policyIdentifier", 1073741836, NULL },
	{ "policyQualifiers", 538984459, NULL },
	{ "MAX", 1074266122, "1"},
	{ NULL, 2, "PolicyQualifierInfo"},
	{ "PolicyQualifierInfo", 1610612741, NULL },
	{ "policyQualifierId", 1073741836, NULL },
	{ "qualifier", 541065229, NULL },
	{ "policyQualifierId", 1, NULL },
	{ "CPSuri", 1073741853, NULL },
	{ "UserNotice", 1610612741, NULL },
	{ "noticeRef", 1073758210, "NoticeReference"},
	{ "explicitText", 16386, "DisplayText"},
	{ "NoticeReference", 1610612741, NULL },
	{ "organization", 1073741826, "DisplayText"},
	{ "noticeNumbers", 536870923, NULL },
	{ NULL, 3, NULL },
	{ "DisplayText", 1610612754, NULL },
	{ "ia5String", 1612709917, NULL },
	{ "200", 524298, "1"},
	{ "visibleString", 1612709923, NULL },
	{ "200", 524298, "1"},
	{ "bmpString", 1612709921, NULL },
	{ "200", 524298, "1"},
	{ "utf8String", 538968098, NULL },
	{ "200", 524298, "1"},
	{ "OCSPRequest", 1610612741, NULL },
	{ "tbsRequest", 1073741826, "TBSRequest"},
	{ "optionalSignature", 536895490, "Signature"},
	{ NULL, 2056, "0"},
	{ "TBSRequest", 1610612741, NULL },
	{ "version", 1610653699, NULL },
	{ NULL, 1073741833, "0"},
	{ NULL, 2056, "0"},
	{ "requestorName", 1610637314, "GeneralName"},
	{ NULL, 2056, "1"},
	{ "requestList", 1610612747, NULL },
	{ NULL, 2, "Request"},
	{ "requestExtensions", 536895490, "Extensions"},
	{ NULL, 2056, "2"},
	{ "Signature", 1610612741, NULL },
	{ "signatureAlgorithm", 1073741826, "AlgorithmIdentifier"},
	{ "signature", 1073741830, NULL },
	{ "certs", 536895499, NULL },
	{ NULL, 1073743880, "0"},
	{ NULL, 2, "Certificate"},
	{ "Request", 1610612741, NULL },
	{ "reqCert", 1073741826, "CertID"},
	{ "singleRequestExtensions", 536895490, "Extensions"},
	{ NULL, 2056, "0"},
	{ "CertID", 1610612741, NULL },
	{ "hashAlgorithm", 1073741826, "AlgorithmIdentifier"},
	{ "issuerNameHash", 1073741831, NULL },
	{ "issuerKeyHash", 1073741831, NULL },
	{ "serialNumber", 2, "CertificateSerialNumber"},
	{ "OCSPResponse", 1610612741, NULL },
	{ "responseStatus", 1073741826, "OCSPResponseStatus"},
	{ "responseBytes", 536895490, "ResponseBytes"},
	{ NULL, 2056, "0"},
	{ "OCSPResponseStatus", 1610874901, NULL },
	{ "successful", 1073741825, "0"},
	{ "malformedRequest", 1073741825, "1"},
	{ "internalError", 1073741825, "2"},
	{ "tryLater", 1073741825, "3"},
	{ "sigRequired", 1073741825, "5"},
	{ "unauthorized", 1, "6"},
	{ "ResponseBytes", 1610612741, NULL },
	{ "responseType", 1073741836, NULL },
	{ "response", 7, NULL },
	{ "BasicOCSPResponse", 1610612741, NULL },
	{ "tbsResponseData", 1073741826, "ResponseData"},
	{ "signatureAlgorithm", 1073741826, "AlgorithmIdentifier"},
	{ "signature", 1073741830, NULL },
	{ "certs", 536895499, NULL },
	{ NULL, 1073743880, "0"},
	{ NULL, 2, "Certificate"},
	{ "ResponseData", 1610612741, NULL },
	{ "version", 1610653699, NULL },
	{ NULL, 1073741833, "0"},
	{ NULL, 2056, "0"},
	{ "responderID", 1073741826, "ResponderID"},
	{ "producedAt", 1073741861, NULL },
	{ "responses", 1610612747, NULL },
	{ NULL, 2, "SingleResponse"},
	{ "responseExtensions", 536895490, "Extensions"},
	{ NULL, 2056, "1"},
	{ "ResponderID", 1610612754, NULL },
	{ "byName", 1610620939, NULL },
	{ NULL, 1073743880, "1"},
	{ NULL, 2, "RelativeDistinguishedName"},
	{ "byKey", 536879111, NULL },
	{ NULL, 2056, "2"},
	{ "SingleResponse", 1610612741, NULL },
	{ "certID", 1073741826, "CertID"},
	{ "certStatus", 1073741826, "CertStatus"},
	{ "thisUpdate", 1073741861, NULL },
	{ "nextUpdate", 1610637349, NULL },
	{ NULL, 2056, "0"},
	{ "singleExtensions", 536895490, "Extensions"},
	{ NULL, 2056, "1"},
	{ "CertStatus", 1610612754, NULL },
	{ "good", 1610620948, NULL },
	{ NULL, 4104, "0"},
	{ "revoked", 1610620930, "RevokedInfo"},
	{ NULL, 4104, "1"},
	{ "unknown", 536879106, "UnknownInfo"},
	{ NULL, 4104, "2"},
	{ "RevokedInfo", 1610612741, NULL },
	{ "revocationTime", 1073741861, NULL },
	{ "revocationReason", 537157653, NULL },
	{ NULL, 1073743880, "0"},
	{ "unspecified", 1, "0"},
	{ "UnknownInfo", 1073741844, NULL },
	{ "NameConstraints", 1610612741, NULL },
	{ "permittedSubtrees", 1610637314, "GeneralSubtrees"},
	{ NULL, 4104, "0"},
	{ "excludedSubtrees", 536895490, "GeneralSubtrees"},
	{ NULL, 4104, "1"},
	{ "GeneralSubtrees", 1612709899, NULL },
	{ "MAX", 1074266122, "1"},
	{ NULL, 2, "GeneralSubtree"},
	{ "GeneralSubtree", 1610612741, NULL },
	{ "base", 1073741826, "GeneralName"},
	{ "minimum", 1610653699, NULL },
	{ NULL, 1073741833, "0"},
	{ NULL, 4104, "0"},
	{ "maximum", 536895491, NULL },
	{ NULL, 4104, "1"},
	{ "TlsFeatures", 536870923, NULL },
	{ NULL, 3, NULL },
	{ NULL, 0, NULL }
	};

	int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
	{
	static asn1_node _gnutls_pkix1_asn = NULL;
	static int first = 1;
	asn1_node dn;
	int res, start, end;

	if (size > 10000) // same as max_len = 10000 in .options file
	return 0;

	if (first) {
	first = 0;

	// from _gnutls_global_init()
	res = asn1_array2tree(pkix_asn1_tab, &_gnutls_pkix1_asn, NULL);
	assert(res == ASN1_SUCCESS);
	}

	// from cert_get_issuer_dn()
	if ((res = asn1_create_element(_gnutls_pkix1_asn, "PKIX1.Certificate", &dn)) != ASN1_SUCCESS) {
	goto out;
	}

	// from cert_get_issuer_dn()
	res = asn1_der_decoding(&dn, data, size, NULL);
	if (res != ASN1_SUCCESS) {
	goto out;
	}

	// from cert_get_issuer_dn()
	res = asn1_der_decoding_startEnd(dn, data, size, "tbsCertificate.issuer", &start, &end);
	if (res != ASN1_SUCCESS) {
	goto out;
	}

	out:
	asn1_delete_structure(&dn);

	return 0;
	}