Titlebook: Blockchain Technology and Application; 5th CCF China Blockc Yi Sun,Liang Cai,Zeguang Lu Conference proceedings 2022 The Editor(s) (if appli

ASTER

PCT: A Relay-Based Privacy-Preserving Cross-Chain Transaction Scheme,nge proof based on the Borromean ring signature to ensure that the transaction amount is legitimate. Finally, a lending scheme is designed to solve the problem of insufficient funds in cross-chain transactions. Security analysis and experiments show our scheme achieves privacy-preserving cross-chain transactions with low overhead.

parasite

,An Illegal Data Supervision Scheme for the Consortium Blockchain,t, we use regular expressions on the application side to prevent users from accessing illegal data. Second, the smart contract can be used by supervisors to mark illegal data with greater impact. The experimental results show the effectiveness and practicability of our scheme.

EVEN

神圣将军

A Leadership Transfer Algorithm for the Raft,ve heartbeats and become faulty nodes because of unreliable transmission. Faulty nodes seriously affect consensus efficiency, even causing the network split. The leader cannot receive enough replies during the network split, so the cluster cannot reach a consensus for transactions. To improve the ef

明确

Blockchain Multi-signature Wallet System Based on QR Code Communication,ystem combining software and hardware is proposed. First, at the software level, multi-party key management method is adopted to divide the blockchain wallet key into multiple fragments for multi-point storage. Threshold signature technology is adopted to provide key escrow and retrieval services. T

overhaul

EthMB+: A Tamper-Proof Data Query Model Based on B+ Tree and Merkle Tree,es a new solution for trusted data storage and decentralized computing. Most existing blockchain systems store blockchain data in key-value databases with simple semantic descriptions. However, the data storage system only provides a single query mode and limited query types. As a result, it is impo

affinity

BARB

向前变椭圆

,An Illegal Data Supervision Scheme for the Consortium Blockchain,ecentralization. However, due to the immutability of blockchain, the cost of removing illegal data on the blockchain is relatively high. Although the permission blockchain has restricted users’ actions, there will still be illegal data on the chain, which brings great regulatory difficulties to the

鞭子