diff --git a/keychain/leveldb/store.go b/keychain/leveldb/store.go
index a954f80..6ea56f0 100644
--- a/keychain/leveldb/store.go
+++ b/keychain/leveldb/store.go
@@ -54,3 +54,23 @@ func (ks *KeyStore) Get(id string) (keychain.Key, error) {
 	// with no err
 	return k, nil
 }
+
+func (ks *KeyStore) GetAll() ([]keychain.Key, error) {
+	keys := make([]keychain.Key, 0)
+	iter := ks.handle.GetIteratorWithPrefix()
+	for iter.Next() {
+		key := iter.Key()
+		rawData := iter.Value()
+
+		var k keychain.Key
+		err := json.Unmarshal(rawData, &k)
+		if err != nil {
+			logrus.Error("error while unmarshal key :" + string(key) + ", in level db key store")
+			continue
+		}
+
+		keys = append(keys, k)
+	}
+
+	return keys, nil
+}
diff --git a/keychain/leveldb/store_test.go b/keychain/leveldb/store_test.go
new file mode 100644
index 0000000..894a868
--- /dev/null
+++ b/keychain/leveldb/store_test.go
@@ -0,0 +1,146 @@
+package leveldb
+
+import (
+	"encoding/json"
+	"os"
+	"testing"
+
+	"github.com/DE-labtory/zulu/db/leveldb"
+	"github.com/DE-labtory/zulu/keychain"
+	"github.com/stretchr/testify/assert"
+)
+
+const TestDbPath = "./test_db_path"
+
+var gracefulTestDown = func(t *testing.T, provider *leveldb.DBProvider) {
+	provider.Close()
+	err := os.RemoveAll(TestDbPath)
+	if err != nil {
+		t.Log(err.Error())
+	}
+}
+
+func TestKeyStore_Get(t *testing.T) {
+	// set
+	dbProvider := leveldb.CreateNewDBProvider(TestDbPath)
+	defer gracefulTestDown(t, dbProvider)
+	keyStoreHandle := dbProvider.GetDBHandle("keystore")
+
+	// given
+	keyId := "testKeyId"
+	keyData := keychain.Key{
+		ID:         keyId,
+		PrivateKey: []byte("testPrivateKey"),
+		PublicKey:  []byte("testPublicKey"),
+	}
+	rawData, err := json.Marshal(keyData)
+	assert.NoError(t, err)
+
+	err = keyStoreHandle.Put([]byte(keyId), rawData, true)
+	assert.NoError(t, err)
+
+	keyStore := NewKeyStore(keyStoreHandle)
+
+	// when
+	retrieveKey, err := keyStore.Get(keyId)
+
+	// then
+	assert.NoError(t, err)
+	assert.Equal(t, keyData, retrieveKey)
+}
+
+func TestKeyStore_GetNotFound(t *testing.T) {
+	// set
+	dbProvider := leveldb.CreateNewDBProvider(TestDbPath)
+	defer gracefulTestDown(t, dbProvider)
+	keyStoreHandle := dbProvider.GetDBHandle("keystore")
+
+	// given
+	keyId := "testKeyId"
+	keyData := keychain.Key{
+		ID:         keyId,
+		PrivateKey: []byte("testPrivateKey"),
+		PublicKey:  []byte("testPublicKey"),
+	}
+	rawData, err := json.Marshal(keyData)
+	assert.NoError(t, err)
+
+	err = keyStoreHandle.Put([]byte(keyId), rawData, true)
+	assert.NoError(t, err)
+
+	keyStore := NewKeyStore(keyStoreHandle)
+
+	// when
+	retrieveKey, err := keyStore.Get(keyId + "NOT_FOUND")
+
+	// then
+	assert.Error(t, err)
+	assert.Equal(t, keychain.Key{}, retrieveKey)
+}
+
+func TestKeyStore_Store(t *testing.T) {
+	// set
+	dbProvider := leveldb.CreateNewDBProvider(TestDbPath)
+	defer gracefulTestDown(t, dbProvider)
+	keyStoreHandle := dbProvider.GetDBHandle("keystore")
+
+	// given
+	keyId := "testKeyId"
+	keyData := keychain.Key{
+		ID:         keyId,
+		PrivateKey: []byte("testPrivateKey"),
+		PublicKey:  []byte("testPublicKey"),
+	}
+	rawData, err := json.Marshal(keyData)
+	assert.NoError(t, err)
+
+	keyStore := NewKeyStore(keyStoreHandle)
+
+	// when
+	err = keyStore.Store(keyData)
+
+	// then
+	assert.NoError(t, err)
+
+	d, err := keyStoreHandle.Get([]byte(keyId))
+	assert.NoError(t, err)
+	assert.Equal(t, rawData, d)
+
+}
+
+func TestKeyStore_GetAll(t *testing.T) {
+	// set
+	dbProvider := leveldb.CreateNewDBProvider(TestDbPath)
+	defer gracefulTestDown(t, dbProvider)
+	keyStoreHandle := dbProvider.GetDBHandle("keystore")
+
+	// given
+	keyId1 := "testKeyId1"
+	keyData1 := keychain.Key{
+		ID:         keyId1,
+		PrivateKey: []byte("testPrivateKey1"),
+		PublicKey:  []byte("testPublicKey1"),
+	}
+
+	keyId2 := "testKeyId2"
+	keyData2 := keychain.Key{
+		ID:         keyId2,
+		PrivateKey: []byte("testPrivateKey2"),
+		PublicKey:  []byte("testPublicKey2"),
+	}
+
+	keyStore := NewKeyStore(keyStoreHandle)
+	err := keyStore.Store(keyData1)
+	assert.NoError(t, err)
+
+	err = keyStore.Store(keyData2)
+	assert.NoError(t, err)
+
+	// when
+	loadKeys, err := keyStore.GetAll()
+
+	// then
+	assert.NoError(t, err)
+	assert.Len(t, loadKeys, 2)
+
+}