Numerical Security Analysis for Practical Quantum Key Distribution

Quantum key distribution QKD promises information-theoretic security based on quantum mechanics and idealized device models. Practical implementations, however, deviate from these models due to unavoidable device imperfections, and existing security proofs fall short of capturing the complexity o...

Bluetooth Signals Can Be Used to Track Smartphones, Say Researchers

Researchers warn Bluetooth signals can be used to track device owners via a unique fingerprinting of the radio signal. The technique was presented via a paper presented at IEEE Security and Privacy conference last month by researchers at the University of California San Diego. The paper suggests...

Wanna Mine Bitcoins Faster? Researchers Find New Way to Do it

A new machine for Bitcoin Mining called "Approximate Hardware" would make Bitcoin mining easier. Bitcoin had gained tremendous popularity over a few couple of years among the virtual currencies due to its decentralized principle. Mining a single Bitcoin is not an ice cake walk, as it requires an...

Researchers: Accelerometers Perfect for Pervasive Tracking

Minute manufacturing imperfections in popular accelerometers cause that hardware to emit uniquely identifiable data that could give third parties the ability to single out specific mobile devices, regardless of any privacy protections deployed on them. In a paper published by the University of...

Researchers Find Hole in Quantum Cryptography

The Norwegian University of Science and Technology NTNU and the University of Erlangen-Nürnberg together with the Max Planck Institute for the Science of Light in Erlangen have recently developed and tested a technique exploiting imperfections in quantum cryptography systems to implement an attac...