Blockchain Technology and Application

A Proxy Re-encryption Scheme of Medical Data Sharing Based on ConsortiumBlockchain.- A Leadership Transfer Algorithm for Raft.- Blockchain Multi-Signature Wallet System Based on QR Code Communication.- EthMB+: A Tamper-proof Data Query Model based on B+ Tree and Merkle Tree.- Overview of Zero-knowledge Proof and Its Applications in Blockchain.- PCT: a Relay-based Privacy-preserving Cross-chain Transaction Scheme.- An Illegal Data Supervision Scheme for the Consortium Blockchain.