A Novel Memory-hard Password Hashing Scheme for Blockchain-based Cyber-physical Systems
Ye Luo, Zehai Su, Wei Zheng, Zhaobin Chen, Fuqin Wang, Zhemin Zhang, Jinjun Chen
Abstract
There has been an increasing interest of integrating blockchain into cyber-physical systems (CPS). The design of password hashing schemes (PHSs) is in the core of blockchain security. However, no existing PHS seems to meet both the requirements of sufficient security and small code size for blockchain-based CPSs. In this article, a novel memory-hard PHS based on the classic PBKDF2 is proposed. Evaluation results show that the proposed scheme is promising for blockchain-based CPS, as it manages to provide enhanced security in comparison to PBKDF2 with limited increase in code size.
Topics & Concepts
BlockchainComputer scienceHash functionPasswordComputer securityScheme (mathematics)Code (set theory)Programming languageMathematicsSet (abstract data type)Mathematical analysisBlockchain Technology Applications and SecurityAdvanced Malware Detection TechniquesIoT and Edge/Fog Computing