Lightweight selective disclosure for verifiable documents on blockchain
Lightweight selective disclosure for verifiable documents on blockchain
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区块链上可验证文件的轻量级选择性披露
DOI：
10.1016/j.icte.2021.08.012
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发表时间：
2021
期刊：
影响因子：
5.4
通讯作者：
Satoki Watanabe
中科院分区：
文献类型：
--
作者：
Kenji Saito;Satoki Watanabe
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，我们的建议比将文档本身表示为Merkle树并部分隐藏它的已知方法具有优势。
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.