The Trusted Digital Technology Lab (TDT lab) of Shanghai Jiao Tong University was founded by Professor Zhenfu Cao in September 2002. It is one of the earliest labs publicly working on the trusted-X technology all over the world. It focuses on the research of cryptology and trusted digital technology, including modern cryptographic algorithms, cryptanalysis, cryptographic protocols, trusted computing, trusted network. Meanwhile, the Lab is working hard to promote the transformation from research and development into products and achieve the key technology on information security design, such as identity (biometric) based public key authentication framework.

Since it was established, TDT lab has already applied for 19 national patents including 15 published ones, and published over 200 papers on the renowned domestic and foreign academic journals and conferences. It has done an excellent job on more than 10 important research projects, such as Outstanding Youth Science Foundation of China. Till now, 2 post-doctors, 10 doctors, 21 masters and several engineering masters have graduated from this lab.

Currently, there are 3 professors and associate professors, 3 guest professors and guest staffs, 10 doctors, 14 masters, several engineering masters and several students of ACM experimental class.

Now, the lab is in charge of the research on National Natural Science Foundation of China, National 863 project, Research Fund for the Doctoral Program of Higher Education and Special Foundation of Huawei. The lab has built up a long term relationship with many related international institutes. The lab aims to build and cultivate an international top-level research group, and become one of the most important research institutes in the world.