Invariant subspace attacks were introduced at CRYPTO 2011 to cryptanalyze PRINTcipher. The invariant subspaces for PRINTcipher were discovered in an ad hoc fashion, leaving a generic technique to discover invariant subspaces in other ciphers as an open problem. Here, based on a rather simple observation, we introduce a generic algorithm to detect invariant subspaces. We apply this algorithm to ...

The sharpest optical images of the R136 cluster in Large Magellanic Cloud are presented, allowing for first time to resolve members central core, including R136a1, most massive star known. These data were taken using Gemini speckle imager Zorro medium-band filters with effective wavelengths similar BVRI achieving angular resolutions between 30-40 mas. All stars previously known literature, havi...

Se evaluó la distribución potencial del cusumbo, zorro y oncilla en el norte de Saba na Bogotá, región Colombia que presenta altas transformaciones por actividades antrópicas, encontrándose un área 108749,88 ha disponibles para 93899,64 81014,15 oncilla. Además, se conectividad funcional las especies a partir una distancia umbral determinada como radio acción reportados cada especie ci...