Alibaba’s ant blockchain officially opened its own on-chain privacy protection technology. The ant blockchain said that this technology is the world’s first commercially available on-chain privacy protection technology. At the same time, the paper was selected into ACM SIGMOD 20, as The first independent publication of a Chinese technology company’s blockchain original technology at a Class A conference. The ant blockchain also said that the solution is a hardware TEE-based on-chain privacy protection calculation model, which aims to ensure that the cost of privacy protection calculation is minimized under the condition of rapid growth of business data. , Data encryption storage protocol, remote authentication and key agreement protocol and a TEE-based smart contract engine.