4 papers
Malleability-Resistant Encrypted Control System with Disturbance Compensation and Real-Time Attack Detection
Naoki Aizawa, Keita Emura, Kiminao Kogiso
This study proposes an encrypted PID control system with a disturbance observer (DOB) using a keyed-homomorphic encryption (KHE) scheme, aiming to achieve control performance while…
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…