In blockchain networks, reaching effective supervision while maintaining anonymity to the public has been an ongoing challenge. In existing solutions, certification authorities need to record all pairs of identities and pseudonyms, which is demanding and costly. This article proposed an account guarantee scheme to realize feasible supervision for existing anonymous blockchain networks with lower storage costs. Users are able to guarantee anonymous accounts with account guarantee key pairs generated from certificated polynomial functions, which inherently maintains one-to-n mapping certifications. Single or limited account guarantee key pairs do not leak privacy. Victims are able to request TCs to screen a cheater or disclose a cheater with enough fraud transactions by themselves. Detailed security and privacy analysis showed that the account guarantee scheme preserves user privacy and realizes feasible supervision. Experimental results demonstrated that the account guarantee scheme is efficient and practical.

中文翻译：

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账户保证计划

在区块链网络中，在保持对公众匿名的同时实现有效监督一直是一个持续的挑战。在现有的解决方案中，认证机构需要记录所有的身份和假名对，这要求很高，而且成本很高。本文提出了一种账户保证方案，以较低的存储成本实现对现有匿名区块链网络的可行监管。用户可以使用由证书多项式函数生成的帐户保证密钥对来保证匿名帐户，该多项式函数固有地维护一对 n 映射证书。单一或有限账户保证密钥对不会泄露隐私。受害者可以自行要求 TC 筛选作弊者或披露作弊者的足够欺诈交易。详细的安全和隐私分析表明，账户保障方案保护了用户隐私，实现了可行的监管。实验结果表明，该账户保证方案是高效实用的。