F a l l i n g . . . on screen.

O F F L I N E D E L E G a T I O N Offline Delegation

This article describes mechanisms for offline delegation of access rights to files maintained by a distributed “File Repository”. The mechanisms are designed for a target environment where personal machines are used at times when critical services, such as authentication and authorization services, are not accessible. We demonstrate how valid delegation credentials can be transferred verbally w...

D O M a I N a D a P Tat I O N U S I N G M a N I F O L D a L I G N M E N T Maxime Trolliet

R É S U M É L’adaptation de domaine est un challenge important pour les futures applications de remote sensing. Les contraintes tant financières que temporelles relative à l’aquisition de données labelisées incitent à mettre au point de nouvelles techniques permettant l’utilisation d’information provenant de différentes sources. Différentes approches ont vu le jour, considérant les caractéristi...

L L O O N N G

In ancient t imes, wax seals impressed with signet r ings were aff ixed to documents as evidence of their authent ic i ty . A digi ta l counterpart is a message authent icat ion code f ixed f i rmly to each important document. We sketch an archite cture that accompl ishes this by using encapsulat ion of content with provenance metadata, cryptographic seal ing, and webs of t rust rooted in respe...

G a M E S a N D L O G I C S F O R I N F O R M at I O N a L C a S C a D E S Msc in Logic

Effects of V a R Y I N G Zinc Concentrations on Quality of a L F a L F a for Lambs 1'2

Zinc concentrations in alfalfa hay were varied using a N-Zn liquid fertilizer as a foliar applicant (.34 or .68 kg Zn/ha) or as a soil fertilizer (4.07 kg Zn/ha). Mean concentrations of Zn across five cuttings of alfalfa in 2 yr were 18, 27, 41 and 21 mg Zn/kg DM for control, low foliar, high foliar and soil treatments, respectively. Each treatment was fed in ad libitum amounts to eight crossbr...