Anonymity and Fair-Exchange in e-Commerce Protocol for Physical Products Delivery

Bîrjoveanu, Cătălin V.

doi:10.5220/0005508801700177

Cited by 7 publications

(3 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Some authors have proposed blockchain-based fair exchange systems that could be adapted to service provision; however, to the best of our knowledge, we are the first to propose a system that satisfies all of the above properties. In particular, anonymity and physical delivery have rarely been addressed together, and if so, the protocol was based on TTP and impractical assumptions about the banking system [12] or did not address the conflict between parties [4].…”

Section: The Contribution Of Our Paper Ismentioning

confidence: 99%

“…The authors of [12] proposed a protocol for physical products that guarantees the anonymity of both buyer and seller. They achieve this by introducing an online TTP that validates coins and guarantees fairness.…”

Section: Fair Exchange Anonymity Dispute Resolution and Physical Prod...mentioning

confidence: 99%

“…The problem arises when the seller wants to send the product to the buyer who wants to remain anonymous. Most of the existing protocols either assume the existence of a trusted delivery agent [12,45], or use a complex delivery mechanism similar to onion routing involving multiple many delivery services [4].…”

Section: Physical Productsmentioning

confidence: 99%

See 2 more Smart Citations

Anonymous provision of privacy-sensitive services using blockchain and decentralised storage

Barański

Szymański

Mora

2023

Preprint

View full text Add to dashboard Cite

Lawyers, laboratories, auditors or banks often need data containing sensitive personal information to provide their services. Examples of sensitive services include genetic testing, paternity testing, STD testing, credit scoring or legal advice. The processing of personal data, especially when providing services involving sensitive data such as health records, biological material or legal documents, exposes both users and service providers (SPs) to privacy risks. SPs are at risk of violating GDPR, CPAA and other legal regulations, while customers are at risk of losing their privacy. We observe that personal data is often only used for logistical purposes, such as payment or communication, and could be provided anonymously if such methods were available. We present a solution that allows services to be provided without collecting personal data. We use anonymous payment methods such as cash and anonymous cryptocurrencies, blockchain to achieve fairness, and distributed content-addressable storage networks to deliver results. Compared to other solutions, our protocol achieves anonymity with weaker assumptions, supports physical materials and conflict resolution, and does not require the customer to interact with the blockchain in conflict-free transactions, demonstrating better practicality. In this work, we analyse the fairness of our protocol and implement it using Ethereum technology as a message board, Monero as an anonymous payment method, and Powergate (IPFS and Filecoin) as a decentralised storage network.

show abstract

Section: The Contribution Of Our Paper Ismentioning

confidence: 99%

Section: Fair Exchange Anonymity Dispute Resolution and Physical Prod...mentioning

confidence: 99%