Waters’ variant of the Boneh-Boyen IBE scheme is attractive because of its efficency, applications, and security attributes, but suffers from a relatively complex proof with poor concrete security. This is due in part to the proof’s “artificial abort” step, which has then been inherited by numerous derivative works. It has often been asked whether this step is necessary. We show that it is not,...

design of bridge deck with long-term strength, durability and permanence is a significant interest for engineers. one applicable solution to this challenge could be via using hybrid system consisting of conventional materials such as concrete and steel with frp plates which is also known as composite deck. since these deck are relatively new so their performance is not completely known. the pre...

In this note, we describe an error in the proof for CLRW2 given by Landecker et al. in their paper at CRYPTO 2012 on the beyond-birthday-bound security for tweakable block ciphers. We are able to resolve the issue, give a new bound for the security of CLRW2, and identify a potential limitation of this proof technique when looking to extend the scheme to provide asymptotic security.

M. Naor (Ed.): TCC 2004, LCNS 2951, pages 336 352, February 2004. c © Springer-Verlag Berlin Heidelberg 2004. Abstract. We consider compositional properties of reactive systems that are secure in a cryptographic sense. We follow the well-known simulatability approach of modern cryptography, i.e., the specification is an ideal system and a real system should in some sense simulate this ideal one...

Abstract In Malaysia, road pavements are frequently damaged by the accumulation of water on surface caused heavy rain, due to humid climate. The presence within asphaltic concrete mixture particles may impede their workability. Exposure towards natural phenomenon such as rain can be main cause related inside asphalt pavements. To improve conditions for users, it is necessary consider alternativ...

Laston sebagai lapisan aus/AC-WC (Asphaltic Concrete-Wearing Course) atau lapis permukaan adalah suatu bagian dari perkerasan yang berada pada dimana bersentuhan langsung dengan ban kendaraan, tersebut harus memiliki ketahanan terhadap air, serta ketahahanan perubahan cuaca. Oleh karena itu campuran beraspal ini diperhatikan, apabila kurang baik maka dapat mengakibatkan terjadinya kerusakan dal...

How many words are needed to define all the words in a dictionary? Graph-theoretic analysis reveals that about 10% of a dictionary is a unique Kernel of words that define one another and all the rest, but this is not the smallest such subset. The Kernel consists of one huge strongly connected component (SCC), about half its size, the Core, surrounded by many small SCCs, the Satellites. Core wor...

Accurate assessment of demand and capacity of structures is critical in developing performance-based design methodologies. In this research, new methods are presented towards quantifying demand and capacity of RCFT frames and members. An experimental database was compiled documenting local damage levels of RCFT members. The quantified information collected from the experiments was utilized in c...