diff --git a/vendor/github.com/jcmturner/gokrb5/v8/messages/KRBError.go b/vendor/github.com/jcmturner/gokrb5/v8/messages/KRBError.go
new file mode 100644
index 0000000..d2cf32d
--- /dev/null
+++ b/vendor/github.com/jcmturner/gokrb5/v8/messages/KRBError.go
@@ -0,0 +1,94 @@
+// Package messages implements Kerberos 5 message types and methods.
+package messages
+
+import (
+	"fmt"
+	"time"
+
+	"github.com/jcmturner/gofork/encoding/asn1"
+	"github.com/jcmturner/gokrb5/v8/asn1tools"
+	"github.com/jcmturner/gokrb5/v8/iana"
+	"github.com/jcmturner/gokrb5/v8/iana/asnAppTag"
+	"github.com/jcmturner/gokrb5/v8/iana/errorcode"
+	"github.com/jcmturner/gokrb5/v8/iana/msgtype"
+	"github.com/jcmturner/gokrb5/v8/krberror"
+	"github.com/jcmturner/gokrb5/v8/types"
+)
+
+// KRBError implements RFC 4120 KRB_ERROR: https://tools.ietf.org/html/rfc4120#section-5.9.1.
+type KRBError struct {
+	PVNO      int                 `asn1:"explicit,tag:0"`
+	MsgType   int                 `asn1:"explicit,tag:1"`
+	CTime     time.Time           `asn1:"generalized,optional,explicit,tag:2"`
+	Cusec     int                 `asn1:"optional,explicit,tag:3"`
+	STime     time.Time           `asn1:"generalized,explicit,tag:4"`
+	Susec     int                 `asn1:"explicit,tag:5"`
+	ErrorCode int32               `asn1:"explicit,tag:6"`
+	CRealm    string              `asn1:"generalstring,optional,explicit,tag:7"`
+	CName     types.PrincipalName `asn1:"optional,explicit,tag:8"`
+	Realm     string              `asn1:"generalstring,explicit,tag:9"`
+	SName     types.PrincipalName `asn1:"explicit,tag:10"`
+	EText     string              `asn1:"generalstring,optional,explicit,tag:11"`
+	EData     []byte              `asn1:"optional,explicit,tag:12"`
+}
+
+// NewKRBError creates a new KRBError.
+func NewKRBError(sname types.PrincipalName, realm string, code int32, etext string) KRBError {
+	t := time.Now().UTC()
+	return KRBError{
+		PVNO:      iana.PVNO,
+		MsgType:   msgtype.KRB_ERROR,
+		STime:     t,
+		Susec:     int((t.UnixNano() / int64(time.Microsecond)) - (t.Unix() * 1e6)),
+		ErrorCode: code,
+		SName:     sname,
+		Realm:     realm,
+		EText:     etext,
+	}
+}
+
+// Unmarshal bytes b into the KRBError struct.
+func (k *KRBError) Unmarshal(b []byte) error {
+	_, err := asn1.UnmarshalWithParams(b, k, fmt.Sprintf("application,explicit,tag:%v", asnAppTag.KRBError))
+	if err != nil {
+		return krberror.Errorf(err, krberror.EncodingError, "KRB_ERROR unmarshal error")
+	}
+	expectedMsgType := msgtype.KRB_ERROR
+	if k.MsgType != expectedMsgType {
+		return krberror.NewErrorf(krberror.KRBMsgError, "message ID does not indicate a KRB_ERROR. Expected: %v; Actual: %v", expectedMsgType, k.MsgType)
+	}
+	return nil
+}
+
+// Marshal a KRBError into bytes.
+func (k *KRBError) Marshal() ([]byte, error) {
+	b, err := asn1.Marshal(*k)
+	if err != nil {
+		return b, krberror.Errorf(err, krberror.EncodingError, "error marshaling KRBError")
+	}
+	b = asn1tools.AddASNAppTag(b, asnAppTag.KRBError)
+	return b, nil
+}
+
+// Error method implementing error interface on KRBError struct.
+func (k KRBError) Error() string {
+	etxt := fmt.Sprintf("KRB Error: %s", errorcode.Lookup(k.ErrorCode))
+	if k.EText != "" {
+		etxt = fmt.Sprintf("%s - %s", etxt, k.EText)
+	}
+	return etxt
+}
+
+func processUnmarshalReplyError(b []byte, err error) error {
+	switch err.(type) {
+	case asn1.StructuralError:
+		var krberr KRBError
+		tmperr := krberr.Unmarshal(b)
+		if tmperr != nil {
+			return krberror.Errorf(err, krberror.EncodingError, "failed to unmarshal KDC's reply")
+		}
+		return krberr
+	default:
+		return krberror.Errorf(err, krberror.EncodingError, "failed to unmarshal KDC's reply")
+	}
+}