Invited Talk

Title: Privacy-Enhancing Consortium Blockchain

Speaker: Dr. Tsz Hon Yuen

Abstract:

Blockchain provides an immutable, global transaction history in distributed system. All transactions can be seen by all of the nodes on the network. However, it may not be desirable in business use cases that require strong privacy. In public blockchain, several cryptographic techniques are used to provide anonymity of users and confidentiality of transaction amount (such as linkable ring signature in Monero, and zk-SNARK in ZCash). However, they are not efficient enough for systems with high throughput. Therefore, we propose and implement some new privacy-enhancing techniques which can be used in consortium blockchain.

Biography:

Dr Tsz Hon Yuen is a senior researcher of Shield Lab at Huawei Singapore. He is a member of Cryptography Expert Group in Huawei. He received his PhD degree from University of Wollongong in 2010 and worked in University of Hong Kong before joining Huawei. His current research interests include public key encryption, digital signatures, privacy and blockchain. He has published more than 50 technical papers, including top journals and conferences such as IEEE TC and Eurocrypt. He received the Best Paper Award in ESORICS 2014. He is also active in industrial fields with more than 10 patents. He has served as the PC members and reviewers for many security and cryptography conferences, workshops and journals.