| Title |
Anonymization with controlled de-anonymization in private blockchain |
| Authors |
Sakalauskas, Eligijus ; Michalkovič, Aleksejus ; Dindienė, Lina ; Lukšys, Kęstutis ; Bendoraitis, Antanas |
| ISBN |
9788409900305 |
| Full Text |
|
| Is Part of |
Advances in blockchain and cryptocurrency: book series, Vol. 1 / editor S.Yurish.. Barcelona : IFSA publishing, 2026. p. 99-136.. ISBN 9788409900305 |
| Keywords [eng] |
Private blockchain ; Transaction’s anonymity ; Ring signatures ; Anonymization ; De-anonymization |
| Abstract [eng] |
In a private blockchain, it is essential to provide not only anonymization of users but also controlled de-anonymization when any user can prove the possession of the funds to the third party related to his/her identity and corresponding to the blockchain address, public key and may be public key certificate. It is also required that this user remains anonymous on the Net. Such a third party could be an audit organization, investment company, legal authorities and others. The most popular anonymization is realized in Monero private blockchain by implementing ring signatures based on elliptic curve cryptography. The de-anonymization problem is not considered in connection with the anonymization problem. In this paper, we present a unified anonymization-de-anonymization system. Anonymization is based on an arbitrary set of single-user addresses generated independently and secretly. These addresses correspond to the multiple users’ private and public keys. Transactions are signed by a Schnorr signature. De-anonymization is based on the Schnorr aggregated-multisignature scheme and Non-Interactive Zero Knowledge proof. The presented solution is an integration of Schnorr signature, Schnorr aggregated-multisignature, and Schnorr-based Non-Interactive Zero Knowledge Proof. Security and effectiveness analysis are presented. |
| Published |
Barcelona : IFSA publishing, 2026 |
| Type |
Book part |
| Language |
English |
| Publication date |
2026 |
| CC license |
|
