133,047 research outputs found
Le Plongeon [D. Le Courtois]
No full textTitre : Le Plongeon (c) Delphine Le Courtois - Affiche reproduite avec l'aimable autorisation de la société Hippocampe Productions Réalisateur : Delphine Le Courtois Scénariste : Delphine Le Courtois Année : 2013 Durée : 10' Pays : France Langue : français Genre : fiction Couleur/Noir et blanc : couleur Distribution/casting : Louis Leenart, Frédéric Séchet, Marie Kawczynski Synopsis : Treize ans, au bord du précipice de l’âge adulte, un garçon sur un plongeoir fait face à l’abysse. Mots-..
Random Permutation Statistics and An Improved Slide-Determine Attack on KeeLoq
No full textKeeLoq is a lightweight block cipher which is extensively used in the automotive industry. Its periodic structure, and overall simplicity makes it vulnerable to many different attacks. Only certain attacks are considered as really "practical" attacks on KeeLoq: the brute force, and several other attacks which require up to 2p16 known plaintexts and are then much faster than brute force, developed by Courtois et al., and (faster attack) by Dunkelman et al. On the other hand, due to the unusually small block size, there are yet many other attacks on KeeLoq, which require the knowledge of as much as about 2p32 known plaintexts but are much faster still. There are many scenarios in which such attacks are of practical interest, for example if a master key can be recovered, see Section 2 in [11] for a detailed discussion. The fastest of these attacks is an attack by Courtois, Bard and Wagner from that has a very low complexity of about 2p28 KeeLoq encryptions on average. In this paper we will propose an improved and refined attack which is faster both on average and in the best case. We also present an exact mathematical analysis of probabilities that arise in these attacks using the methods of modern analytic combinatorics
Passive Seismic Experiment Package weight report
No full textThe estimated weight report for the Passive Seismic Experiment Package (PSEP), part of the Early Apollo Scientific Experiments Package (EASEP)prepared by D. Courtois
Marc Nattier und Marie Courtois
No full textMarc Nattier (um 1642-1705) und Marie Courtois (um 1655-1703), Pastell auf Papier, vor 1704, 81,0 x 65,5 cm und 80,9 x 64,5 cm, Lyon, musée des Beaux-Arts, cabinet des Arts Graphiques, Inv.Nr. 1963-15 und 1963-16 Bei den zwei als unbekannt geführten Pastellbildnissen von Vivien im Lyoner Musée des Beaux-Arts handelt es sich aller Wahrscheinlichkeit nach um die bislang als verschollen geltenden Portraits von Marc Nattier und seiner Gattin, Marie Courtois, die 1704 im Salon ausgestellt waren. D..
Passive Seismic Experiment Package power management
No full textThe purpose of this EATM is to update the description of the functional aspects of the PSEP Power Subsystem, incorporating the effects of recent changes. The functional description is presented in a series of plots of various aspects of power distribution versus the system input power.prepared by D. Courtois
Bendix data transmitter qualification units
No full textThis ATM presents a summary of operating events which led to a decision to stop qualification testing with the Serial Number 23 unit and perform a complete qualification sequence with Serial Number 21. This ATM satisfies action required per the Delta QTRR Meeting on 2 September 1970.prepared by D. A. Courtois
Bendix data transmitter housing material change
No full textThis ATM presents a comparison of Bendix Data Transmitters with housings machined of aluminum versus those with housings machined of magnesium. A second action item from the same meeting required an analysis of the effect of increasing the countersink diameter of two mounting plate holes. This analysis is also summarized in this ATM.prepared by D. A. Courtois
Passive Seismic Experiment Package power balance
No full textThe purpose of this EATM is to present the results of a study of the power balance of the PSEP. The nominal operating conditions and the power balance effects of commands are described. The effects of the inadvertent introduction of any command into the PSEP are also considered from a power balance point of view.prepared by D. Courtois
Generator warm-up characteristics
No full textThis document describes the warm-up process of the SNAP-27 Generator Assembly after the isotope capsule is inserted. Several inquiries have recently been received regarding this process, and deployment sequence studies are impacted. Because of the several variables associated with the turn-on of ALSEP on the lunar surface, there is no simple plot of available power as a function of time. However, some reasonable estimates can be made of available power for specific turn-on cases.prepared by D. A. Courtois
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