diff --git a/vendor/github.com/jcmturner/gokrb5/v8/types/PrincipalName.go b/vendor/github.com/jcmturner/gokrb5/v8/types/PrincipalName.go
new file mode 100644
index 0000000..d48d2c1
--- /dev/null
+++ b/vendor/github.com/jcmturner/gokrb5/v8/types/PrincipalName.go
@@ -0,0 +1,67 @@
+package types
+
+import (
+	"strings"
+
+	"github.com/jcmturner/gokrb5/v8/iana/nametype"
+)
+
+// Reference: https://www.ietf.org/rfc/rfc4120.txt
+// Section: 5.2.2
+
+// PrincipalName implements RFC 4120 type: https://tools.ietf.org/html/rfc4120#section-5.2.2
+type PrincipalName struct {
+	NameType   int32    `asn1:"explicit,tag:0"`
+	NameString []string `asn1:"generalstring,explicit,tag:1"`
+}
+
+// NewPrincipalName creates a new PrincipalName from the name type int32 and name string provided.
+func NewPrincipalName(ntype int32, spn string) PrincipalName {
+	return PrincipalName{
+		NameType:   ntype,
+		NameString: strings.Split(spn, "/"),
+	}
+}
+
+// GetSalt returns a salt derived from the PrincipalName.
+func (pn PrincipalName) GetSalt(realm string) string {
+	var sb []byte
+	sb = append(sb, realm...)
+	for _, n := range pn.NameString {
+		sb = append(sb, n...)
+	}
+	return string(sb)
+}
+
+// Equal tests if the PrincipalName is equal to the one provided.
+func (pn PrincipalName) Equal(n PrincipalName) bool {
+	if len(pn.NameString) != len(n.NameString) {
+		return false
+	}
+	//https://tools.ietf.org/html/rfc4120#section-6.2 - the name type is not significant when checking for equivalence
+	for i, s := range pn.NameString {
+		if n.NameString[i] != s {
+			return false
+		}
+	}
+	return true
+}
+
+// PrincipalNameString returns the PrincipalName in string form.
+func (pn PrincipalName) PrincipalNameString() string {
+	return strings.Join(pn.NameString, "/")
+}
+
+// ParseSPNString will parse a string in the format <service>/<name>@<realm>
+// a PrincipalName type will be returned with the name type set to KRB_NT_PRINCIPAL(1)
+// and the realm will be returned as a string. If the "@<realm>" suffix
+// is not included in the SPN then the value of realm string returned will be ""
+func ParseSPNString(spn string) (pn PrincipalName, realm string) {
+	if strings.Contains(spn, "@") {
+		s := strings.Split(spn, "@")
+		realm = s[len(s)-1]
+		spn = strings.TrimSuffix(spn, "@"+realm)
+	}
+	pn = NewPrincipalName(nametype.KRB_NT_PRINCIPAL, spn)
+	return
+}