We study two closely related primitives: Broadcast Encryption and Key Predistribution Schemes (KPS). Broadcast Encryption allows a broadcaster to broadcast an encrypted message so that only a designated group of users can decrypt it. KPS allows a designated group of users to establish a common key non-interactively. We discover a generic method to construct efficient broadcast encryption scheme...

The goal of this paper is to derive a hazard map for earthquake occurrences in Pakistan from a catalogue that contains spatial coordinates of shallow earthquakes of magnitude 4.5 or larger aggregated over calendar years. We test relative temporal stationarity by the KPSS statistic and use the inhomogeneous J -function to test for inter-point interactions. We then formulate a cluster model, and ...

Acknowledgments I acknowledge useful conversations with Serena Ng, James Stock, and Vince Wiggins. The KPSS code was adapted from John Barkoulas’ RATS code for that test. Thanks also to Richard Sperling for tracking down a discrepancy between published work and the dfgls output and alerting me to the Cheung and Lai estimates. Any remaining errors are my own. References Cheung, Y. W. and K.-S. L...

We investigate the bootstrapped size and power properties of …ve long memory tests, including the modi…ed R/S, KPSS and GPH tests. In small samples, the moving block bootstrap controls the empirical size of the tests. However, for these sample sizes, the power of bootstrapped tests against fractionally integrated alternatives is often a good deal less that of asymptotic tests. In larger samples...

Background. The purpose of the study is to validate Ukrainian and Russian versions King’s Parkinson’s disease Pain Scale (KPPS). Materials methods. was conducted at Odesa Regional Clinical Hospital in 2018–2020. We examined 160 patients with verified by UK Brain Bank criteria (main group) 100 people same age without signs extrapyramidal pathology (controls). All were accordance requirements cur...