The authors present a new technique to realize Attribute-Based Encryption (ABE) schemes secure in the standard model against Chosen-Cipher-text Attacks (CCA-secure). Their approach is to extend certain concrete Chosen-Plaintext Attack secure (CPA-secure) ABE schemes to achieve more efficient constructions than the known generic constructions of CCA-secure ABE schemes. They restrict themselves to the construction of ...

Multithreaded programming is an increasingly popular way to express concurrency in applications. Preemptive multitasking, a popular technique for timesharing of computational resources in software-based systems, faces considerable difficulties when applied to partially reconfigurable hardware. In this paper, the authors propose a cooperative scheduling technique for reconfigurable hardware threads as a feasible compromise between computational efficiency ...