Statistical Seismology Science Gateway

Seismic hazard assessment and risk analysis are critical for human life since these fields study and model expected earthquakes to produce seismic hazard maps and to determine the risk of damage from potential earthquakes to buildings, dams, etc. The Statistical Seismology Science Gateway, built on the gUSE framework, holds a comprehensive set of tools and models covering seismic data analysis, hazard assessment and risk analysis. It provides an environment in such a way that skilled users can experiment their own approaches by simply accessing the gateway services, while novice users can easily use existing applications. This chapter focuses on the development of the workflows implementing these tools and models as well as the portlets to access them. It also discusses how easily gUSE framework was customised to build this science gateway and how it is operated

Lightweight Block Ciphers Revisited: Cryptanalysis of Reduced Round PRESENT and HIGHT

Design and analysis of lightweight block ciphers have become more popular due to the fact that the future use of block ciphers in ubiquitous devices is generally assumed to be extensive. In this respect, several lightweight block ciphers are designed, of which PRESENT and HIGHT are two recently proposed ones by Bogdanov et al. and Hong et al. respectively. In this paper, we propose new attacks on PRESENT and HIGHT. Firstly, we present the first related-key cryptanalysis of 128-bit keyed PRESENT by introducing 17-round related-key rectangle attack with time complexity approximately 2 104 memory accesses. Moreover, we further analyze the resistance of HIGHT against impossible differential attacks by mounting new 26-round impossible differential and 31-round related-key impossible differential attacks where the former requires time complexity of 2(119.53) reduced round HIGHT evaluations and the latter is slightly better than exhaustive search