Runchao Han

Brief bio

I'm a researcher and engineer in Blockchain.
Currently, I'm working on Babylon, a new blockchain that brings security and decentralisation of Bitcoin to all Proof-of-Stake blockchains.
Previously, I obtained my PhD at Monash University and CSIRO-Data61 (advisors: Jiangshan Yu, Joseph Liu and Shiping Chen), Msc at The University of Manchester (advisor: Christos Kotselidis), and BSc at BUPT.
My name in Chinese is 韩润超.

I aim at improving scalability, security and privacy of permissionless blockchains and cryptocurrencies.
My research mainly combines techniques from Cryptography and Distributed Computing.
My PhD research mainly focused on blockchain sharding protocols and their underlying primitives, such as shard allocation and decentralised randomness beacon.
I also have worked on some other topics such as cross-chain communication, economic security of blockchains, layer-2 protocols, and optimisation of Proof-of-Work mining.

RandChain: A Scalable and Fair Decentralised Randomness Beacon

Runchao Han, Haoyu Lin, and Jiangshan Yu

[Paper] [Slides] [Shortlisted at VDF Research]
On the Security and Performance of Blockchain Sharding

Runchao Han, Jiangshan Yu, Haoyu Lin, Shiping Chen, and Paulo Esteves-Veríssimo

[Paper]

Analysing and Improving Shard Allocation Protocols for Sharded Blockchains.
- AFT conference (virtual). September, 2022
- Seminar at CSIRO-Data61 (virtual). August, 2022
Fact and Fiction: Challenging the honest majority assumption of permissionless blockchains.
- AsiaCCS conference (virtual). June, 2021. [Video]
- Seminar at CSIRO-Data61 (virtual). November, 2021
RandChain: A Scalable and Fair Decentralised Randomness Beacon.
- Seminar at Nervos Foundation (virtual). June, 2022.
- Seminar at Decrypto (virtual). November, 2020. [Video]
Demystifying Crypto-Mining: Analysis and Optimizations of Memory-Hard PoW Algorithms.
- Seminar at Huawei Noah's Ark Lab (virtual). July, 2020.
On the optionality and fairness of Atomic Swaps.

2022: EuroS&P, IEEE Blockchain, IEEE Transaction of Service Computing, ACM DLT Journal, Journal of Network and Systems Management
2021: DSN, ICBC, IEEE Blockchain, NSS, MSN, TrustCom, IEEE Transaction of Service Computing
2020: AFT, ICDCS, SRDS, ACNS, AsiaCCS, TrustCom, ACISP, ICBC, NSS, TDSC, The Computer Journal, IEEE IoT Journal, IEEE Software Journal, IEEE Transaction of Service Computing
2019: Indocrypt, TrustCom, Future Generation Computing System