diff --git a/initiator.go b/initiator.go
index 69b8ed4..1d78645 100644
--- a/initiator.go
+++ b/initiator.go
@@ -8,11 +8,11 @@ import (
 )
 
 type Initiator interface {
-	oid() asn1.ObjectIdentifier
-	initSecContext() ([]byte, error)            // GSS_Init_sec_context
-	acceptSecContext(sc []byte) ([]byte, error) // GSS_Accept_sec_context
-	sum(bs []byte) []byte                       // GSS_getMIC
-	sessionKey() []byte                         // QueryContextAttributes(ctx, SECPKG_ATTR_SESSION_KEY, &out)
+	OID() asn1.ObjectIdentifier
+	InitSecContext() ([]byte, error)            // GSS_Init_sec_context
+	AcceptSecContext(sc []byte) ([]byte, error) // GSS_Accept_sec_context
+	Sum(bs []byte) []byte                       // GSS_getMIC
+	SessionKey() []byte                         // QueryContextAttributes(ctx, SECPKG_ATTR_SESSION_KEY, &out)
 }
 
 // NTLMInitiator implements session-setup through NTLMv2.
@@ -29,11 +29,11 @@ type NTLMInitiator struct {
 	seqNum uint32
 }
 
-func (i *NTLMInitiator) oid() asn1.ObjectIdentifier {
+func (i *NTLMInitiator) OID() asn1.ObjectIdentifier {
 	return spnego.NlmpOid
 }
 
-func (i *NTLMInitiator) initSecContext() ([]byte, error) {
+func (i *NTLMInitiator) InitSecContext() ([]byte, error) {
 	i.ntlm = &ntlm.Client{
 		User:        i.User,
 		Password:    i.Password,
@@ -49,7 +49,7 @@ func (i *NTLMInitiator) initSecContext() ([]byte, error) {
 	return nmsg, nil
 }
 
-func (i *NTLMInitiator) acceptSecContext(sc []byte) ([]byte, error) {
+func (i *NTLMInitiator) AcceptSecContext(sc []byte) ([]byte, error) {
 	amsg, err := i.ntlm.Authenticate(sc)
 	if err != nil {
 		return nil, err
@@ -57,12 +57,12 @@ func (i *NTLMInitiator) acceptSecContext(sc []byte) ([]byte, error) {
 	return amsg, nil
 }
 
-func (i *NTLMInitiator) sum(bs []byte) []byte {
+func (i *NTLMInitiator) Sum(bs []byte) []byte {
 	mic, _ := i.ntlm.Session().Sum(bs, i.seqNum)
 	return mic
 }
 
-func (i *NTLMInitiator) sessionKey() []byte {
+func (i *NTLMInitiator) SessionKey() []byte {
 	return i.ntlm.Session().SessionKey()
 }
 
diff --git a/spnego.go b/spnego.go
index f3bb027..1678532 100644
--- a/spnego.go
+++ b/spnego.go
@@ -15,7 +15,7 @@ type spnegoClient struct {
 func newSpnegoClient(mechs []Initiator) *spnegoClient {
 	mechTypes := make([]asn1.ObjectIdentifier, len(mechs))
 	for i, mech := range mechs {
-		mechTypes[i] = mech.oid()
+		mechTypes[i] = mech.OID()
 	}
 	return &spnegoClient{
 		mechs:     mechs,
@@ -28,7 +28,7 @@ func (c *spnegoClient) oid() asn1.ObjectIdentifier {
 }
 
 func (c *spnegoClient) initSecContext() (negTokenInitBytes []byte, err error) {
-	mechToken, err := c.mechs[0].initSecContext()
+	mechToken, err := c.mechs[0].InitSecContext()
 	if err != nil {
 		return nil, err
 	}
@@ -52,7 +52,7 @@ func (c *spnegoClient) acceptSecContext(negTokenRespBytes []byte) (negTokenRespB
 		}
 	}
 
-	responseToken, err := c.selectedMech.acceptSecContext(negTokenResp.ResponseToken)
+	responseToken, err := c.selectedMech.AcceptSecContext(negTokenResp.ResponseToken)
 	if err != nil {
 		return nil, err
 	}
@@ -62,7 +62,7 @@ func (c *spnegoClient) acceptSecContext(negTokenRespBytes []byte) (negTokenRespB
 		return nil, err
 	}
 
-	mechListMIC := c.selectedMech.sum(ms)
+	mechListMIC := c.selectedMech.Sum(ms)
 
 	negTokenRespBytes1, err = spnego.EncodeNegTokenResp(1, nil, responseToken, mechListMIC)
 	if err != nil {
@@ -73,9 +73,9 @@ func (c *spnegoClient) acceptSecContext(negTokenRespBytes []byte) (negTokenRespB
 }
 
 func (c *spnegoClient) sum(bs []byte) []byte {
-	return c.selectedMech.sum(bs)
+	return c.selectedMech.Sum(bs)
 }
 
 func (c *spnegoClient) sessionKey() []byte {
-	return c.selectedMech.sessionKey()
+	return c.selectedMech.SessionKey()
 }