diff --git a/lib/PayPro.js b/lib/PayPro.js
index 931ffae..59042a2 100644
--- a/lib/PayPro.js
+++ b/lib/PayPro.js
@@ -274,6 +274,7 @@ PayPro.prototype.x509Verify = function() {
 
 var rfc5280 = {};
 
+var AuthorityKeyIdentifier =
 rfc5280.AuthorityKeyIdentifier = asn1.define('AuthorityKeyIdentifier', function() {
   this.seq().obj(
     this.key('keyIdentifier').optional().octstr(),
@@ -282,6 +283,110 @@ rfc5280.AuthorityKeyIdentifier = asn1.define('AuthorityKeyIdentifier', function(
   );
 });
 
+var GeneralNames =
+rfc5280.GeneralNames = asn1.define('GeneralNames', function() {
+  this.seq().obj(
+    this.key('generalNames').use(rfc5280.GeneralName)
+  );
+});
+
+var GeneralName =
+rfc5280.GeneralName = asn1.define('GeneralName', function() {
+  this.choice({
+    otherName: this.use(OtherName),
+    rfc822Name: this.use(IA5String),
+    dNSName: this.use(IA5String),
+    x400Address: this.use(ORAddress),
+    directoryName: this.use(rfc3280.Name),
+    ediPartyName: this.use(EDIPartyName),
+    uniformResourceIdentifier: this.use(IA5String),
+    iPAddress: this.octstr(),
+    registeredID: this.objid()
+  });
+});
+
+var OtherName =
+rfc5280.OtherName = asn1.define('OtherName', function() {
+  this.seq().obj(
+    this.key('typeId').objid(),
+    this.key('value')
+  );
+});
+
+// https://www.google.com/search?q=IA5String
+// https://en.wikipedia.org/wiki/IA5STRING
+// http://msdn.microsoft.com/en-us/library/windows/desktop/bb540805(v=vs.85).aspx
+var IA5String =
+rfc5280.IA5String = asn1.define('IA5String', function() {
+  this.octstr(); // unsure
+});
+
+var ORAddress =
+rfc5280.ORAddress = asn1.define('ORAddress', function() {
+  this.seq().obj(
+    this.key('builtInStandardAttributes').use(BuiltInStandardAttributes),
+    this.key('builtInDomainDefinedAttributes').optional().use(BuiltInDomainDefinedAttributes),
+    this.key('extensionAttributes').optional().use(ExtensionAttributes)
+  );
+});
+
+var BuiltInStandardAttributes =
+rfc5280.BuiltInStandardAttributes = asn1.define('BuiltInStandardAttributes', function() {
+  ;
+});
+
+var BuiltInDomainDefinedAttributes =
+rfc5280.BuiltInDomainDefinedAttributes = asn1.define('BuiltInDomainDefinedAttributes', function() {
+  ;
+});
+
+var ExtensionAttributes =
+rfc5280.ExtensionAttributes = asn1.define('ExtensionAttributes', function() {
+  ;
+});
+
+var EDIPartyName = rfc5280.EDIPartyName = asn1.define('EDIPartyName', function() {
+  this.seq().obj(
+    this.key('nameAssigner').optional().use(DirectoryString),
+    this.key('partyName').use(DirectoryString)
+  );
+});
+
+var DirectoryString = rfc5280.DirectoryString = asn1.define('DirectoryString', function() {
+  this.choice({
+    teletexString: this.use(TeletexString),
+    printableString: this.use(PrintableString),
+    universalString: this.use(UniversalString),
+    utf8String: this.use(UTF8String),
+    bmpString: this.use(BMPString)
+  });
+});
+
+var TeletexString =
+rfc5280.TeletexString = asn1.define('TeletexString', function() {
+  ;
+});
+
+var PrintableString =
+rfc5280.PrintableString = asn1.define('PrintableString', function() {
+  ;
+});
+
+var UniversalString =
+rfc5280.UniversalString = asn1.define('UniversalString', function() {
+  ;
+});
+
+var UTF8String =
+rfc5280.UTF8String = asn1.define('UTF8String', function() {
+  ;
+});
+
+var BMPString =
+rfc5280.BMPString = asn1.define('BMPString', function() {
+  ;
+});
+
 // rfc5280.SubjectKeyIdentifier = asn1.define('SubjectKeyIdentifier', function() {
 //   this.seq().obj(
 //     this.key('keyIdentifier').optional().octstr(),