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.

中文翻译：

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一种新的基于区块链的网络物理系统的记忆硬密码散列方案

将区块链集成到网络物理系统（CPS）中的兴趣越来越大。密码哈希方案（PHS）的设计是区块链安全的核心。然而，现有的 PHS 似乎没有同时满足基于区块链的 CPS 的足够安全性和小代码大小的要求。在本文中，提出了一种基于经典 PBKDF2 的新型记忆硬 PHS。评估结果表明，所提出的方案对于基于区块链的 CPS 很有前景，因为与 PBKDF2 相比，它在代码大小增加有限的情况下提供了增强的安全性。