Blockchain technology is an immutable database that cannot be censored, tampered with, or erased, which can increase credibility and reduce interaction costs. Therefore, blockchain technology is expected to become the next generation Internet infrastructure, with broad application prospects in many industries, such as medicine, energy, and finance. The open network and publicly stored data in a blockchain system, however, raise serious risks of data theft and user privacy leakage, which has become a core issue that restricts the blockchain technology from becoming practical. This article uses kleptography technology to design a blockchain covert data transmission scheme to achieve high-concealment and high-performance data transmission under open network conditions. Experiments conducted in the Bitcoin network prove that the covert data transmission mechanism of this article has high compatibility and high performance, and can be practically applied to many popular blockchain systems.

中文翻译：

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通过开放式区块链网络实现隐秘渠道

区块链技术是一个不可篡改的数据库，无法进行审查，篡改或擦除，这可以提高可信度并降低交互成本。因此，区块链技术有望成为下一代互联网基础设施，在医药，能源和金融等许多行业具有广阔的应用前景。但是，开放网络和区块链系统中的公共存储数据会带来严重的数据盗窃和用户隐私泄露风险，这已成为限制区块链技术实用化的核心问题。本文使用kleptography技术设计了一种区块链隐蔽数据传输方案，以在开放网络条件下实现高隐蔽性和高性能数据传输。