Research profile

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.

[Google scholar] [DBLP]

Selected papers at Monash

• Fair Delivery of Decentralised Randomness Beacon
  Runchao Han and Jiangshan Yu
  The 27th International Conference on Financial Cryptography and Data Security (FC 2023)
  [Paper]
• Analysing and Improving Shard Allocation Protocols for Sharded Blockchains
  Runchao Han, Jiangshan Yu, and Ren Zhang
  The 4th ACM Conference on Advances in Financial Technologies (AFT 2022)
  [Paper] [Selected as "Paper of the Week" (Issue #68) by ZK Capital]
• On the optionality and fairness of Atomic Swaps
  Runchao Han, Haoyu Lin, and Jiangshan Yu
  The First ACM Conference on Advances in Financial Technologies (AFT 2019)
  [Paper] [Slides] [Code] [EIP-2266 standard] [Peep an EIP #23] [Report from CryptoNews] [Report from Monash University]

Papers at Babylon

• Interchain Timestamping for Mesh Security
  Ertem Nusret Tas, Runchao Han, David Tse, Fisher Yu, and Kamilla Nazirkhanova
  ACM Conference on Computer and Communications Security (CCS 2023)
  [Paper]