The goal of privacy metrics is to measure the degree of privacy enjoyed by users in a system
and the amount of protection offered by privacy-enhancing technologies. In this way, privacy …

Covert communication enables covert information transmission in an undetectable way to
prevent the exposure of communication behaviors. Blockchain-based covert communication …

Monero is a privacy-centric cryptocurrency that allows users to obscure their transactions by
including chaff coins, called" mixins," along with the actual coins they spend. In this paper …

Bitcoin is quickly emerging as a popular digital payment system. However, in spite of its
reliance on pseudonyms, Bitcoin raises a number of privacy concerns due to the fact that all …

We propose Mixcoin, a protocol to facilitate anonymous payments in Bitcoin and similar
cryptocurrencies. We build on the emergent phenomenon of currency mixes, adding an …

Purchases of electric vehicles have been increasing in recent years. These vehicles differ
from traditional fossil-fuel-based vehicles especially in the time consumed to keep them …

We provide a first systematic account of opportunities and limitations of anti-money
laundering (AML) in Bitcoin, a decentralized cryptographic currency proliferating on the …

We present a new class of statistical de-anonymization attacks against high-dimensional
micro-data, such as individual preferences, recommendations, transaction records and so …

We present Loopix, a low-latency anonymous communication system that provides bi-
directional 'third-party'sender and receiver anonymity and unobservability. Loopix leverages …

We present the first analysis of the popular Tor anonymity network that indicates the security
of typical users against reasonably realistic adversaries in the Tor network or in the …