We propose a middleware solution designed to facilitate seamless integration of privacy using zero-knowledge proofs within various multi-chain protocols, encompassing domains such as DeFi, gaming, social networks, DAOs, e-commerce, and the metaverse. Our design achieves two divergent goals. zkFi aims to preserve consumer privacy while achieving regulation compliance through zero-knowledge proofs. These ends are simultaneously achievable. zkFi protocol is designed to function as a plug-and-play solution, offering developers the flexibility to handle transactional assets while abstracting away the complexities associated with zero-knowledge proofs. Notably, specific expertise in zero-knowledge proofs (ZKP) is optional, attributed to zkFi's modular approach and software development kit (SDK) availability.

翻译：摘要：我们提出一种中间件解决方案，旨在利用零知识证明促进跨多链协议（涵盖DeFi、游戏、社交网络、DAO、电子商务及元宇宙等场景）中隐私功能的无缝集成。该设计同步实现两个看似矛盾的目标：zkFi既通过零知识证明保障消费者隐私，又满足法规合规性要求。zkFi协议采用即插即用设计，为开发者提供处理交易资产的灵活性，同时抽象化零知识证明的复杂性。值得注意的是，得益于zkFi的模块化方法和软件开发工具包（SDK）的可用性，开发者无需具备零知识证明（ZKP）方面的专业知识。