4 citations · 6 across the 6 of their papers we have counts for
6 papers
On the Consideration of Vanity Address Generation via Identity-Based Signatures
Shogo Murasaki, Kazumasa Omote, Keita Emura
An address is indicated as an identifier of the user on the blockchain, and is defined by a hash value of the ECDSA verification key. A vanity address is an address that embeds cus…
A Smart Contract-based Non-Transferable Signature Verification System using Nominative Signatures
Hinata Nishino, Kazumasa Omote, Keita Emura
Nominative signatures allow us to indicate who can verify a signature, and they can be employed to construct a non-transferable signature verification system that prevents the sign…
An Anonymous yet Accountable Contract Wallet System using Account Abstraction
Kota Chin, Keita Emura, Kazumasa Omote
Account abstraction allows a contract wallet to initiate transaction execution. Thus, account abstraction is useful for preserving the privacy of externally owned accounts (EOAs) b…
A Sealed-bid Auction with Fund Binding: Preventing Maximum Bidding Price Leakage
Kota Chin, Keita Emura, Kazumasa Omote +1
In an open-bid auction, a bidder can know the budgets of other bidders. Thus, a sealed-bid auction that hides bidding prices is desirable. However, in previous sealed-bid auction p…
Accuracy and Privacy Evaluations of Collaborative Data Analysis
Akira Imakura, Anna Bogdanova, Takaya Yamazoe +2
Distributed data analysis without revealing the individual data has recently attracted significant attention in several applications. A collaborative data analysis through sharing…
An Anonymous Trust-Marking Scheme on Blockchain Systems
Teppei Sato, Keita Emura, Tomoki Fujitani +1
During the Coincheck incident, which recorded the largest damages in cryptocurrency history in 2018, it was demonstrated that using Mosaic token can have a certain effect. Although…