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Anonymity on blockchain based e-cash protocols—A survey
The transactions in blockchain framework, based cryptocurrencies are publicly available,
thereby accessible to all users by design. However, the anonymity of blockchain …
thereby accessible to all users by design. However, the anonymity of blockchain …
Peredi: Privacy-enhanced, regulated and distributed central bank digital currencies
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 …
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
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 …
payments, and the constantly reducing role of cash in society, central banks have shown an …
Utt: Decentralized ecash with accountable privacy
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 …
accountable privacy. UTT is the first ecash system that obtains three critical properties:(1) it …
Privacy on the blockchain: Unique ring signatures
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 …
produce a signature on behalf of the group, without revealing the individual signer's identity …
Privacy-preserving incentive systems with highly efficient point-collection
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 …
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
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” …
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
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 …
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
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 …
induction from charging pads (CPs) installed on roads. For the system to function, the EVs …
Dual-anonymous off-line electronic cash for mobile payment
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 …
mobile commence is developed rapidly which in turns stimulates interests in mobile …