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arXiv 2103.07655cs.CRcs.CY
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区块链上可验证文档的轻量级选择性披露

Lightweight Selective Disclosure for Verifiable Documents on Blockchain

Kenji Saito, Satoki Watanabe

摘要:

为了实现轻量级的选择性披露,以保护文档持有人的隐私,我们提出了一种XML格式的文件,可以隐藏任意元素使用加密哈希函数和盐,允许部分数字签名和有效地验证,以及JSON格式,可以转换为这样的XML。通过将多个这样的结构表示为Merkle树并将其根存储在区块链中,可以有效地证明文档的存在。我们表明,我们的建议具有优势,比已知的方法,代表文件本身作为一个Merkle树和部分隐藏它。

英文摘要:

To achieve lightweight selective disclosure for protecting privacy of document holders, we propose an XML format for documents that can hide arbitrary elements using a cryptographic hash function and salts, which allows to be partially digitally signed and efficiently verified, as well as a JSON format that can be converted to such XML. The documents can be efficiently proven to exist by representing multiple such structures as a Merkle tree and storing its root in blockchain. We show that our proposal has advantages over known methods that represent the document itself as a Merkle tree and partially hide it.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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