index.js

try {
  var asn1 = require('asn1.js');
} catch (e) {
  var asn1 = require('../' + '..');
}

var CRLReason = asn1.define('CRLReason', function() {
  this.enum({
    0: 'unspecified',
    1: 'keyCompromise',
    2: 'CACompromise',
    3: 'affiliationChanged',
    4: 'superseded',
    5: 'cessationOfOperation',
    6: 'certificateHold',
    8: 'removeFromCRL',
    9: 'privilegeWithdrawn',
    10: 'AACompromise'
  });
});
exports.CRLReason = CRLReason;

var AlgorithmIdentifier = asn1.define('AlgorithmIdentifier', function() {
  this.seq().obj(
    this.key('algorithm').objid(),
    this.key('parameters').optional().any()
  );
});
exports.AlgorithmIdentifier = AlgorithmIdentifier;

var Certificate = asn1.define('Certificate', function() {
  this.seq().obj(
    this.key('tbsCertificate').use(TBSCertificate),
    this.key('signatureAlgorithm').use(AlgorithmIdentifier),
    this.key('signature').bitstr()
  );
});
exports.Certificate = Certificate;

var TBSCertificate = asn1.define('TBSCertificate', function() {
  this.seq().obj(
    this.key('version').def('v1').explicit(0).use(Version),
    this.key('serialNumber').use(CertificateSerialNumber),
    this.key('signature').use(AlgorithmIdentifier),
    this.key('issuer').use(Name),
    this.key('validity').use(Validity),
    this.key('subject').use(Name),
    this.key('subjectPublicKeyInfo').use(SubjectPublicKeyInfo),

    // TODO(indutny): validate that version is v2 or v3
    this.key('issuerUniqueID').optional().explicit(1).use(UniqueIdentifier),
    this.key('subjectUniqueID').optional().explicit(2).use(UniqueIdentifier),

    // TODO(indutny): validate that version is v3
    this.key('extensions').optional().explicit(3).use(Extensions)
  );
});
exports.TBSCertificate = TBSCertificate;

var Version = asn1.define('Version', function() {
  this.int({
    0: 'v1',
    1: 'v2',
    2: 'v3'
  });
});
exports.Version = Version;

var CertificateSerialNumber = asn1.define('CertificateSerialNumber',
                                          function() {
  this.int();
});
exports.CertificateSerialNumber = CertificateSerialNumber;

var Validity = asn1.define('Validity', function() {
  this.seq().obj(
    this.key('notBefore').use(Time),
    this.key('notAfter').use(Time)
  );
});
exports.Validity = Validity;

var Time = asn1.define('Time', function() {
  this.choice({
    utcTime: this.utctime(),
    genTime: this.gentime()
  });
});
exports.Time = Time;

var UniqueIdentifier = asn1.define('UniqueIdentifier', function() {
  this.bitstr();
});
exports.UniqueIdentifier = UniqueIdentifier;

var SubjectPublicKeyInfo = asn1.define('SubjectPublicKeyInfo', function() {
  this.seq().obj(
    this.key('algorithm').use(AlgorithmIdentifier),
    this.key('subjectPublicKey').bitstr()
  );
});
exports.SubjectPublicKeyInfo = SubjectPublicKeyInfo;

var Extensions = asn1.define('Extensions', function() {
  this.seqof(Extension);
});
exports.Extensions = Extensions;

var Extension = asn1.define('Extension', function() {
  this.seq().obj(
    this.key('extnID').objid(),
    this.key('critical').bool().def(false),
    this.key('extnValue').octstr()
  );
});
exports.Extension = Extension;

var Name = asn1.define('Name', function() {
  this.choice({
    rdn: this.use(RDNSequence)
  });
});
exports.Name = Name;

var RDNSequence = asn1.define('RDNSequence', function() {
  this.seqof(RelativeDistinguishedName);
});
exports.RDNSequence = RDNSequence;

var RelativeDistinguishedName = asn1.define('RelativeDistinguishedName',
                                            function() {
  this.setof(AttributeTypeAndValue);
});
exports.RelativeDistinguishedName = RelativeDistinguishedName;

var AttributeTypeAndValue = asn1.define('AttributeTypeAndValue', function() {
  this.seq().obj(
    this.key('type').use(AttributeType),
    this.key('value').use(AttributeValue)
  );
});
exports.AttributeTypeAndValue = AttributeTypeAndValue;

var AttributeType = asn1.define('AttributeType', function() {
  this.objid();
});
exports.AttributeType = AttributeType;

var AttributeValue = asn1.define('AttributeValue', function() {
  this.any();
});
exports.AttributeValue = AttributeValue;

var GeneralNames = asn1.define('GeneralNames', function() {
  this.seqof(GeneralName);
});
exports.GeneralNames = GeneralNames;

var GeneralName = asn1.define('GeneralName', function() {
  return this.choice({
    otherName: this.implicit(0).use(AnotherName),
    rfc822Name: this.implicit(1).ia5str(),
    dNSName: this.implicit(2).ia5str(),
    directoryName: this.implicit(4).use(Name),

    // TODO(indutny): requires DirectoryString, ORAddress
    // ediPartyName: this.implicit(5).use(EDIPartyName),
    // x400Address: this.implicit(3).use(ORAddress),

    uniformResourceIdentifier: this.implicit(6).ia5str(),
    iPAddress: this.implicit(7).octstr(),
    registeredID: this.implicit(8).objid()
  });
});
exports.GeneralName = GeneralName;

var AnotherName = asn1.define('AnotherName', function() {
  return this.seq().obj(
    this.key('type-id').objid(),
    this.key('value').explicit(0).any()
  );
});
exports.AnotherName = AnotherName;

exports['id-pe-authorityInfoAccess'] = [ 1, 3, 6, 1, 5, 5, 7, 1, 1];

var AuthorityInfoAccessSyntax = asn1.define('AuthorityInfoAccessSyntax',
                                            function() {
  this.seqof(AccessDescription);
});
exports.AuthorityInfoAccessSyntax = AuthorityInfoAccessSyntax;

var AccessDescription = asn1.define('AccessDescription', function() {
  this.seq().obj(
    this.key('accessMethod').objid(),
    this.key('accessLocation').use(GeneralName)
  );
});
exports.AccessDescription = AccessDescription;