The smart city is a hot topic which aims at improving the quality of people’s lives while giving consideration to the environment. It is considered as a promising solution to the problem of rapid growth of urban populations. Currently, many projects relating to the development of smart cities have been proposed, most of which are based on the blockchain technology. Blockchain is a platform of secured and distributed databases. However, there is room for improvement to many aspects of blockchain. Our team at National Chengchi University started research focusing on the development of key technologies for blockchain. The project is supported by the Digital Economy Advancement Project. We have attained the following achievements. First, we designed an efficient consensus protocol to improve the transaction throughput of the blockchain in a permissioned system. We also designed a simple two-step Byzantine consensus protocol that achieves safety and liveness without a recovery protocol. Second, from a software engineering’s perspective, we designed middleware for managing smart contracts so that the development of blockchain applications is easier than before. Finally, for the purpose of privacy protection in blockchain-based applications, we designed a Zero-Knowledge Range Proof (ZKRP) protocol which allows a user to convince other people that a secret value lies within an interval without revealing the secret. We also designed a new kind of certificate for blockchain-based applications.
由資科系碩士生劉義瑋、大學生張哲瑜與徐子崴、老師廖文宏與張家銘所組團隊，參加第三屆蛋白質功能預測競賽 (The Critical Assessment of Functional Annotation, CAFA3)，全世界各知名實驗室也參與該競賽，如: Dr. Zhang-Freddolino @ University of Michigan, Dr. Christine Orengo & Dr. David Jones @ University College London, Dr. Burkhard Rost @ Technical University of Munich，近期主辦單位公佈比賽成果1，在所有參賽的68個隊伍中，NCCUCS在各項評比取得不錯成績，預測Cellular Component Ontology排名第10，預測原核生物的Molecular Function Ontology 排名第8，就預測單胞菌細胞模形成排名第3，在預測果蠅long-term memory世界第1，該方法已被國際會議接受2。