Lightweight selective disclosure for verifiable documents on blockchain

Kenji Saito*, Satoki Watanabe

*この研究の対応する著者

研究成果: Article査読

抄録

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.

本文言語English
ページ(範囲)290-294
ページ数5
ジャーナルICT Express
7
3
DOI
出版ステータスPublished - 2021 9月

ASJC Scopus subject areas

  • ソフトウェア
  • 情報システム
  • ハードウェアとアーキテクチャ
  • コンピュータ ネットワークおよび通信
  • 人工知能

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