diff --git a/pkg/object/fmt.go b/pkg/object/fmt.go
index 04cb5f4..637fa22 100644
--- a/pkg/object/fmt.go
+++ b/pkg/object/fmt.go
@@ -119,7 +119,7 @@ func VerifyIDSignature(obj *Object) error {
 		func() ([]byte, []byte) {
 			sig := obj.GetSignature()
 
-			return sig.GetKey(), sig.GetSign()
+			return sig.Key(), sig.Sign()
 		},
 	)
 }
diff --git a/pkg/object/fmt_test.go b/pkg/object/fmt_test.go
index 5a65e49..2f94b37 100644
--- a/pkg/object/fmt_test.go
+++ b/pkg/object/fmt_test.go
@@ -51,18 +51,18 @@ func TestVerificationFields(t *testing.T) {
 		},
 		{
 			corrupt: func() {
-				obj.GetSignature().GetKey()[0]++
+				obj.GetSignature().Key()[0]++
 			},
 			restore: func() {
-				obj.GetSignature().GetKey()[0]--
+				obj.GetSignature().Key()[0]--
 			},
 		},
 		{
 			corrupt: func() {
-				obj.GetSignature().GetSign()[0]++
+				obj.GetSignature().Sign()[0]++
 			},
 			restore: func() {
-				obj.GetSignature().GetSign()[0]--
+				obj.GetSignature().Sign()[0]--
 			},
 		},
 	}
diff --git a/pkg/signature.go b/pkg/signature.go
index 992b183..7cf318d 100644
--- a/pkg/signature.go
+++ b/pkg/signature.go
@@ -19,8 +19,8 @@ func NewSignature() *Signature {
 	return NewSignatureFromV2(new(refs.Signature))
 }
 
-// GetKey sets binary public key.
-func (s *Signature) GetKey() []byte {
+// Key sets binary public key.
+func (s *Signature) Key() []byte {
 	return (*refs.Signature)(s).GetKey()
 }
 
@@ -29,8 +29,8 @@ func (s *Signature) SetKey(v []byte) {
 	(*refs.Signature)(s).SetKey(v)
 }
 
-// GetSign return signature value.
-func (s *Signature) GetSign() []byte {
+// Sign return signature value.
+func (s *Signature) Sign() []byte {
 	return (*refs.Signature)(s).GetSign()
 }