This paper describes a low power hardware implementation of the Trivium stream cipher based on shift register parallelization techniques. The design was simulated with Modelsim, and synthesized with Synopsys in three CMOS technologies with different gate lengths: 180nm, 130nm and 90 nm. The aim of this paper is to evaluate the suitability of this technique and compare the power consumption and ...

Since stream ciphers have the reputation to be inefficient in software applications the new stream cipher Hermes8 has been developed. It is based on a 8-bit-architecture and an algorithm with low complexity. The two versions presented here are Hermes8-80 with 23 byte state and 10 byte key and furthermore Hermes8-128 with 37 byte state and 16 byte key. Both are suited to run efficiently on 8-bit...

XML stream querying problem involves evaluating a given, potentially large, set of query expressions on a continuous stream of XML messages. Since the messages arrive continuously, it is essential that the query processing rate matches the data arrival rate. Therefore, it is necessary to index the given set of query expressions appropriately to enable real-time processing of the streaming XML d...

A star destroyed by a supermassive black hole (SMBH) in tidal disruption event (TDE) is transformed into filamentary structure known as tidally disrupted stellar debris stream. We show that when ideal gas pressure dominates the thermodynamics of stream, there an exact solution to hydrodynamics equations describes stream evolution and accounts for self-gravity, pressure, dynamical expansion gas,...