M. Piekarska

The blockchain has fueled one of the most enthusiastic bursts of activity in applied cryptography in years, but outstanding problems in security and privacy research must be solved for blockchain technologies to go beyond the hype and reach their full potential. Expand

Bitcoin, the first peer-to-peer electronic cash system, opened the door to permissionless, private, and trustless transactions. Expand

In this paper, we show that covenants can be implemented with a new CHECKSIGFROMSTACK operation that verifies a signature for a message passed as an argument. Expand

In the field of IT security the development of Proof of Concept (PoC) implementations is a commonly accepted method to determine the exploitability of an identified weakness. Expand

Mobile phones are the most intimate computing devices of our time. Expand

The paper assesses the gap between actual and perceived privacy features of smartphones, exploring privacy as a factor of various significance with respect to context of finding back smartphone and selecting storage places. Expand

Empirical studies show that the flow of personal information through mobile apps made devices vulnerable in terms of privacy. Expand

We are witnessing a shift in the design of mobile operating systems from custom architectures to web-based platforms. Expand

In this paper we present the Privacy Dashboard -- a tool designed to inform and empower the people using mobile devices, by introducing features such as Remote Privacy Protection, Backup, Adjustable Location Accuracy, Permission Control and Secondary-User Mode. Expand