diff --git a/pkg/checksum.go b/pkg/checksum.go
index 4182b71..72087a7 100644
--- a/pkg/checksum.go
+++ b/pkg/checksum.go
@@ -37,8 +37,8 @@ func NewChecksum() *Checksum {
 	return NewChecksumFromV2(new(refs.Checksum))
 }
 
-// GetType returns checksum type.
-func (c *Checksum) GetType() ChecksumType {
+// Type returns checksum type.
+func (c *Checksum) Type() ChecksumType {
 	switch (*refs.Checksum)(c).GetType() {
 	case refs.SHA256:
 		return ChecksumSHA256
@@ -49,8 +49,8 @@ func (c *Checksum) GetType() ChecksumType {
 	}
 }
 
-// GetSum returns checksum bytes.
-func (c *Checksum) GetSum() []byte {
+// Sum returns checksum bytes.
+func (c *Checksum) Sum() []byte {
 	return (*refs.Checksum)(c).GetSum()
 }
 
@@ -75,7 +75,7 @@ func (c *Checksum) ToV2() *refs.Checksum {
 }
 
 func EqualChecksums(cs1, cs2 *Checksum) bool {
-	return cs1.GetType() == cs2.GetType() && bytes.Equal(cs1.GetSum(), cs2.GetSum())
+	return cs1.Type() == cs2.Type() && bytes.Equal(cs1.Sum(), cs2.Sum())
 }
 
 // Marshal marshals Checksum into a protobuf binary form.
diff --git a/pkg/checksum_test.go b/pkg/checksum_test.go
index 9d402a4..41cc9d3 100644
--- a/pkg/checksum_test.go
+++ b/pkg/checksum_test.go
@@ -25,8 +25,8 @@ func TestChecksum(t *testing.T) {
 
 	c.SetSHA256(cSHA256)
 
-	require.Equal(t, ChecksumSHA256, c.GetType())
-	require.Equal(t, cSHA256[:], c.GetSum())
+	require.Equal(t, ChecksumSHA256, c.Type())
+	require.Equal(t, cSHA256[:], c.Sum())
 
 	cV2 := c.ToV2()
 
@@ -38,8 +38,8 @@ func TestChecksum(t *testing.T) {
 
 	c.SetTillichZemor(cTZ)
 
-	require.Equal(t, ChecksumTZ, c.GetType())
-	require.Equal(t, cTZ[:], c.GetSum())
+	require.Equal(t, ChecksumTZ, c.Type())
+	require.Equal(t, cTZ[:], c.Sum())
 
 	cV2 = c.ToV2()