Identifier change management apparatus, identifier change management method, and identifier change management program
US12309285B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 7, 2020 |
| Grant date | May 20, 2025 |
| Priority date | — |
| Expiry date | Jun 8, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/3073
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An identifier change management apparatus according to one embodiment includes: a key management unit configured to manage a group of private keys including a first private key; a message input unit configured to receive a message; a transaction issuing unit configured to issue an identifier change transaction including a hash value of the message and a first signature value generated from the first private key; a distributed ledger in which an identifier change program is registered, the identifier change program holding a pairing public key used when the identifier is changed and a second signature value; and a program control management unit configured to calculate a pairing signature value by the first and second signature values by the identifier change program and change the identifier on condition that the pairing signature value, the pairing public key, and the hash value satisfy an equation using a predetermined pairing function.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.