Publications

@article{marcelo001,

title = {“Animation” URL in NFT marketplaces considered harmful for privacy},

author = {Patricia Callejo and Ignacio Gómez-Fernandez and Marcelo Bagnulo},

doi = {https://doi.org/10.1007/s10207-024-00908-x},

issn = {1615-5270},

year  = {2024},

date = {2024-09-17},

journal = {International Journal of Information Security},

abstract = {Non-Fungible Tokens (NFTs) are becoming increasingly popular as a way to represent and own digital property. However, the usage of NFTs also prompts questions about privacy. In this work, we show that it is possible to use NFTs to retrieve enough information to fingerprint users. By doing so, we can uniquely associate users with blockchain accounts. This would allow linking several blockchain accounts to the same user. This work focuses on the vulnerabilities presented by some popular NFT marketplaces. Since NFTs may have HTML files embedded, they allow the use of fingerprinting techniques if not handled carefully. Finally, we provide recommendations and countermeasures for the different actors in this ecosystem to avoid these kinds of tracking methods and, in doing so, safeguard user privacy.},

keywords = {Blockchain, I-Shaper, NFT, privacy},

pubstate = {published},

tppubtype = {article}

}

@article{diazsanchez010,

title = {Kriper: A blockchain network with permissioned storage},

author = {MaríaIsabel Rojo-Rivas and Daniel Díaz-Sánchez and Florina Almenarez and Andrés Marín-Lopez},

doi = {https://doi.org/10.1016/j.future.2022.08.006},

issn = {0167-739X},

year  = {2022},

date = {2022-08-17},

urldate = {2022-08-17},

journal = {Future Generation Computer Systems},

volume = {138},

pages = {160-171},

abstract = {Blockchain has been a revolution in the past few years. Beyond the new currencies that were created around different incarnations of the blockchain concept, there are many other contributions that provide interesting services as a data linked structure using a decentralized network that provide a high level of security. Companies have developed many projects to incorporate blockchain into their business logic pursuing to incorporate other related services as persistence of large volumes of data, privacy or anonymity of transactions, distributed data processing, security (confidentiality, integrity, and availability), document management or micro messages in real time. Nevertheless, as it will be discussed in this article, current blockchains do not meet the needs of companies in many aspects, leading to a scarce or superficial adoption. This article introduces Kriper, a blockchain that aims at meeting corporate world needs by responding with a community-based, open blockchain that may also be segregated and private for certain uses whereas it provides a permissioned distributed storage and micro message lightweight services.},

keywords = {Access control, Blockchain, compromise, Confidentiality, cynamon, Distributed storage, Permissioned storage, privacy, ricon},

pubstate = {published},

tppubtype = {article}

}