Trojan

About: Trojan is a research topic. Over the lifetime, 2028 publications have been published within this topic receiving 33209 citations.

Information dispersion for trojan defense through high-level synthesis

Abstract: Emerging technologies such as the Internet of Things (IoT) heavily rely on hardware security for data and privacy protection. However, constantly increasing integration complexity requires automatic synthesis to maintain the pace of innovation. We introduce the first High-Level Synthesis (HLS) flow that produces a security enhanced hardware design to directly prevent Hardware Trojan Horse (HTH) injection by a malicious foundry. Through analysis of entropy loss and criticality decay, the presented algorithms implement highly efficient resource-targeted information dispersion to counter HTH insertion. The flow is evaluated on existing HLS benchmarks and a new IoT-specific benchmark and shows significant resource savings.

IKAROS, A solar sail demonstrator and its application to trojan asteroid exploration

Abstract: Solar power sail is a deep space probe to be powered by hybrid propulsion of solar photon acceleration and ion engines to explore outer planetary region of the Solar System without relying on nuclear technology. The Japan Aerospace Exploration Agency (JAXA) launched the world’s first deep space solar sail demonstration spacecraft “IKAROS” (Interplanetary Kite-craft Accelerated by Radiation Of the Sun) on May 21, 2010. IKAROS succeeded in deploying a 20m-span solar sail on June 9 and demonstrated several key technologies for solar sail utilizing the deep space flight environment. JAXA is currently studying an outer solar system exploration mission using the demonstrated solar power sail technology. The mission plans to fly for Jupiter, where the spacecraft drops a tiny Jovian probe and performs a swing-by for a Trojan asteroid. Current scenario consists of the rendezvous with one of the Trojan asteroids that are at the Lagrange points L4/L5 associated with Sun-Jupiter system. About as large as 50m sail should be deployed for this mission according to preliminary mission analysis and related research is intensively being carried out in JAXA. JAXA plans to initiate the project in a few years and looks at the launch around 2020.

The TROY project: II. Multi-technique constraints on exotrojans in nine planetary systems.

Abstract: Co-orbital bodies are the byproduct of planet formation and evolution, as we know from the Solar System. Although planet-size co-orbitals do not exists in our planetary system, dynamical studies show that they can remain stable for long periods of time in the gravitational well of massive planets. Should they exist, their detection is feasible with the current instrumentation. In this paper, we present new ground-based observations searching for these bodies co-orbiting with nine close-in (P<5 days) planets, using different observing techniques. The combination of all of them allows us to restrict the parameter space of any possible trojan in the system. We use multi-technique observations (radial velocity, precision photometry and transit timing variations), both newly acquired in the context of the TROY project and publicly available, to constrain the presence of planet-size trojans in the Lagrangian points of nine known exoplanets. We find no clear evidence of trojans in these nine systems through any of the techniques used down to the precision of the observations. However, this allows us to constrain the presence of any potential trojan in the system, specially in the trojan mass/radius versus libration amplitude plane. In particular, we can set upper mass limits in the super-Earth mass regime for six of the studied systems.