Secure group communication relies on secure and robust distribution of group keys. A stateless group key distribution scheme is an ideal candidate when the communication channel is unreliable. Several stateless group key distribution schemes have been proposed. However, these schemes require all users store a certain number of auxiliary keys. The number of such keys increases as the group size ...

There is currently an enormous performance differential, as much as a factor of ten, between the write performance of local file systems and that of distributed file systems, such as the popular NFS [1]. Moreover, the underlying cause of this performance gap is such that as disks with faster transfer rates, or as multiple disks in parallel, are used, this performance differential can only incre...

Traits offer a fine-grained mechanism to compose classes from reusable components while avoiding problems of fragility brought by multiple inheritance and mixins. Traits as originally proposed are stateless, that is, they contain only methods, but no instance variables. State can only be accessed within traits by accessors, which become required methods of the trait. Although this approach work...

Stateless geographic routing provides relatively good performance at a fixed overhead, which is typically much lower than conventional routing protocols such as AODV. However, the performance of geographic routing is impacted by physical voids, and localization errors. Accordingly, virtual coordinate systems (VCS) were proposed as an alternative approach that is resilient to localization errors...

In this paper, we settle a problem in probabilistic verification of infinite–state process (specifically, probabilistic pushdown process). We show that model checking stateless probabilistic pushdown process (pBPA) against probabilistic computational tree logic (PCTL) is undecidable.

This is a film review of Hidden Figures (2016), directed by Theodore Melfi.

1. Impetus Inspiration is often the result of an interaction between the outside world and the composer's inner experience. It may be unexpected and ephemeral, but it can also be the result of a gradual growth, one that reveals itself progressively or by twists and turns. The source of inspiration may lie in sensory phenomena (looking at an object, a landscape, a work of art, hearing sound or m...

educational or research purposes on condition that (1) this copyright notice is included, (2) proper attribution to the author or authors is made and (3) no commercial gain is involved. Abstract Partly as a result of the diversity of the architectures and system software, Data-Flow systems have not been compared directly. In this paper, three widely different Data-Flow systems are compared usin...