Deeply engaged in the development of smart card products and applications for more than 20 years. As a technical expert in the smart card area, I am proficient in various smart card technical specifications and implementations in multiple industries, including financial payment, telecommunication identification, public transportation, online banking, social security, and so on.In recent years, my personal interest has shifted to the field of blockchain and cryptocurrency. Through a few projects, I have already made many in-depth attempts in this area, and I am willing to keep on being involved in projects with original, creative, practical conceptions and visions.