The ever increasing expansion of mobile applications into nearly every aspect of modern life, from banking to healthcare systems, is making their security more important than ever. Modern smartphone operating systems (OS) rely substantially on the permission-based security model to enforce restrictions on the operations that each application can perform. In this paper, we perform an analysis of...

Cryptographic libraries that implement Transport Layer Security (TLS) have a responsibility to delete cryptographic keys once they’re no longer in use. Any key that’s left in memory can potentially be recovered through the actions of an attacker, up to and including the physical capture and forensic analysis of a device’s memory. This paper describes an analysis of the TLS library stack used in...

We report on our efforts to collect behavioral data based on activities recorded by phones. We recruited Android device owners and offered entry into a raffle for participants. Our application was distributed from the Android Market, and its placement there unexpectedly helped us find participants from casual users browsing for free applications. We collected data from 267 total participants wh...

Digital technology has enabled the dissemination of all types information, replacing traditional formats with automated systems. As a result development digital technology, library also entered new era, which is then called era. considered as one form modern where dependence will be on in conversion information and data to achieve greater effectiveness efficiency storing processing transmitting...

Android, iOS, and Windows 8 are changing the application architecture of consumer operating systems. These new architectures required OS designers to rethink security and access control. While the new security architectures improve on traditional desktop and server OS designs, they lack sufficient protection semantics for different classes of OS customers (e.g., consumer, enterprise, and govern...