Anonymity on blockchain based e-cash protocols—A survey

N Andola, VK Yadav, S Venkatesan, S Verma - Computer Science Review, 2021‏ - Elsevier
The transactions in blockchain framework, based cryptocurrencies are publicly available,
thereby accessible to all users by design. However, the anonymity of blockchain …

Peredi: Privacy-enhanced, regulated and distributed central bank digital currencies

A Kiayias, M Kohlweiss, A Sarencheh - Proceedings of the 2022 ACM …, 2022‏ - dl.acm.org
Central Bank Digital Currencies (CBDCs) aspire to offer a digital replacement for physical
cash and as such need to tackle two fundamental requirements that are in conflict. On the …

Platypus: A central bank digital currency with unlinkable transactions and privacy-preserving regulation

K Wüst, K Kostiainen, N Delius, S Capkun - Proceedings of the 2022 …, 2022‏ - dl.acm.org
Due to the popularity of blockchain-based cryptocurrencies, the increasing digitalization of
payments, and the constantly reducing role of cash in society, central banks have shown an …

Utt: Decentralized ecash with accountable privacy

A Tomescu, A Bhat, B Applebaum, I Abraham… - Cryptology ePrint …, 2022‏ - eprint.iacr.org
Abstract We present UnTraceable Transactions (UTT), a system for decentralized ecash with
accountable privacy. UTT is the first ecash system that obtains three critical properties:(1) it …

Privacy on the blockchain: Unique ring signatures

R Mercer - arxiv preprint arxiv:1612.01188, 2016‏ - arxiv.org
Ring signatures are cryptographic protocols designed to allow any member of a group to
produce a signature on behalf of the group, without revealing the individual signer's identity …

Privacy-preserving incentive systems with highly efficient point-collection

J Bobolz, F Eidens, S Krenn, D Slamanig… - Proceedings of the 15th …, 2020‏ - dl.acm.org
Incentive systems (such as customer loyalty systems) are omnipresent nowadays and
deployed in several areas such as retail, travel, and financial services. Despite the benefits …

Transferable E-cash: A cleaner model and the first practical instantiation

B Bauer, G Fuchsbauer, C Qian - IACR International Conference on Public …, 2021‏ - Springer
Transferable e-cash is the most faithful digital analog of physical cash, as it allows users to
transfer coins between them in isolation, that is, without interacting with a bank or a “ledger” …

BBA+ Improving the Security and Applicability of Privacy-Preserving Point Collection

G Hartung, M Hoffmann, M Nagel, A Rupp - Proceedings of the 2017 …, 2017‏ - dl.acm.org
Black-box accumulation (BBA) has recently been introduced as a building-block for a variety
of user-centric protocols such as loyalty, refund, and incentive systems. Loosely speaking …

Priority-based and privacy-preserving electric vehicle dynamic charging system with divisible e-payment

M Nabil, M Bima, A Alsharif, W Johnson… - … cities cybersecurity and …, 2019‏ - Elsevier
Dynamic charging systems enable moving electric vehicles (EVs) to charge using magnetic
induction from charging pads (CPs) installed on roads. For the system to function, the EVs …

Dual-anonymous off-line electronic cash for mobile payment

J Ni, MH Au, W Wu, X Luo, X Lin… - IEEE Transactions on …, 2021‏ - ieeexplore.ieee.org
Mobile devices have become near-ubiquitous tools in our daily lives. Following this trend,
mobile commence is developed rapidly which in turns stimulates interests in mobile …