Dr. Lily (Lidong) Chen is a mathematician and the manager of Cryptographic Technology Group in Computer Security Division, NIST. Her areas of research include cryptographic protocols, zero-knowledge proof, special featured digital signature schemes, network security, and security for wireless and mobility. Dr. Chen has actively contributed to cryptography and security standards developed in international and industry organizations such as ISO/IEC JTC 1 SC27 and IEEE 802 wireless. She co-authored book "Communication System Security" published in 2012 by CRC Press, Taylor & Francis Group. She has been leading NIST cryptography program since 2012.