Toward Achieving Anonymous NFT Trading
Toward Achieving Anonymous NFT Trading
复制标题
实现匿名 NFT 交易
DOI:
10.1109/access.2022.3228787
复制
发表时间:
2022
期刊:
影响因子:
3.9
通讯作者:
Omote Kazumasa
中科院分区:
文献类型:
--
作者:
Chen Zhanwen;Omote Kazumasa
With the rapid development of Non-Fungible Token (NFT) market, various types of digital artwork are published via NFT in recent years for sale. In the current NFT system, owner’s address of each NFT is stored in plaintext. This leads to a severe privacy problem: once a person’s blockchain address is known, all his NFT assets are viewable, which may further cause problems related to the privacy of holding sensitive NFT or premeditated scams to high-value NFT owners. However, due to the limitation of Ethereum and smart contract, it is hard to prevent others from tracking the owner of NFT. Meanwhile, current state-of-the-art NFT research usually assumes the relation between blockchain address and owner’s identity is unknown, thus creating the so-called anonymity. In this paper, based on the most popular NFT marketplace OpenSea’s system, we propose a new exchange scheme to hides the address of NFT owner during trading. To achieve our goal, a proof of commitment scheme is exploited to bind the owner to an NFT while hiding the identity. Moreover, An anonymous payment method is designed to prevent attackers from tracing the Ether flow in NFT trading. Our scheme is proven to be secure against curious users and malicious active attackers. Implementation on testnet also shows that the increased gas cost is acceptable, meaning it is suitable for application.
登录
查看更多内容
DOI:
--
发表时间:
2022
期刊:
IACR Cryptology ePrint Archive
影响因子:
--
作者:
V. Rao
通讯作者:
V. Rao
DOI:
10.1109/brains52497.2021.9569837
发表时间:
2020-11
期刊:
2021 3rd Conference on Blockchain Research & Applications for Innovative Networks and Services (BRAINS)
影响因子:
--
作者:
Peter Robinson;R. Ramesh
通讯作者:
Peter Robinson;R. Ramesh
DOI:
--
发表时间:
2020
期刊:
IACR Cryptol. ePrint Arch.
影响因子:
--
作者:
Joël Gugger
通讯作者:
Joël Gugger
DOI:
10.1109/icbc54727.2022.9805542
发表时间:
2022
期刊:
2022 IEEE International Conference on Blockchain and Cryptocurrency (ICBC)
影响因子:
--
作者:
Mikhail Krasnoselskii;Yash Madhwal;Y. Yanovich
通讯作者:
Y. Yanovich
DOI:
10.1541/ieejeiss.141.903
发表时间:
2021
影响因子:
--
作者:
H. Hata;Sho Teramoto
通讯作者:
Sho Teramoto