diff --git a/session/impl_redis.go b/session/impl_redis.go
index cc0b9af..759fdd0 100644
--- a/session/impl_redis.go
+++ b/session/impl_redis.go
@@ -47,8 +47,11 @@ func (p *provider_redis) New(input *Authorization) (string, error) {
 	if err != nil {
 		return "", err
 	}
+	_, err = p.redisClient.Expire(p.ctx, string(sk), p.ttl).Result()
+	if err != nil {
+		return "", err
+	}
 	pk := storagekey_to_publickey(sk)
-
 	return string(pk), err
 }
 
@@ -202,6 +205,9 @@ func (c *consumer_redis) query_internal(sk storagekey) (*sessionRedis, error) {
 		logger.Println("consumer Query :", err)
 		return nil, err
 	}
+	if ttl < 0 {
+		ttl = time.Duration(time.Hour * 24)
+	}
 
 	auth := MakeAuthrizationFromStringMap(payload)
 	si := &sessionRedis{