According to the securities network news, Wu Yunkun, president of 360 Enterprise Security Group, said that at present, the blockchain technology is still immature, and there are problems in real-time, high concurrency, delay and throughput, and the application fields are very limited. . The immaturity of blockchain technology limits the role of information security to a certain extent. Information security technology plays a decisive role in the development of blockchain. And cryptography is a key technology in the infrastructure and a core technology in other window models.