Amadeus S.a.s.

Virginie Amar

Jeremie Barlet

Olivier Thonnard

Jihane Zouaoui

Guillaume Touffait

Romain Peicle

Christophe Defayet

Marc Campora

Ayoub Choukouk

Joseph El Hayek

Alexandre Barras

Mathieu Morino Baquetto

Caroline Lafont

Yan Collendavelloo

Maria Assunta Domanico

Luc Capanaccia

Sébastien Pellise

Xavier Leblanc

Sebastien Pellise

Sébastian Pellise

A computer network () adapted to provide secured access to online applications hosted on application servers () to a requesting user (U). The network () comprises a login security server () configured for deciding access for the user based on data contained in a central generic access control file () and in the access request. The network () further comprises a centralized user identification component () configured for receiving identification data from user through a central login panel () and for sending an access grant or denial command to the application servers ().

Computer network for a secured access to online applications

Systems and methods for monitoring user authenticity during user activities in a user session on an application server is provided. The method being carried out in a distributed manner by a distributed server system. The method comprises a user modeling-process and a user-verification process. The user-modeling process is performed on a user-model server in which a user model is adapted session-by-session to user activity data received from the application server. The user-verification process is performed on the application server on the basis of the user model adapted on the user-model server. The user-verification process comprises comparing the user model with features extracted from user activity in the user session on the application server and determining a total risk-score value based on the comparison. If the total risk-score value is greater than a given threshold, a corrective action is performed.

Monitoring user authenticity in distributed system

Systems and methods for monitoring user authenticity according to user activities on an application server. A user-modeling process and a user-verification process are performed. In the user-modeling process, a user model is adapted session-by-session to user activities in which the user model includes a plurality of adaptive feature-specific user-behavior models. The user-verification process includes determining a plurality of feature-specific risk-score values, comparing the at least one of the adaptive feature-specific user-behavior models with a respective feature extracted from user activity in the user session on the application server, and determining a total risk-score value indicative of user authenticity by weighting and combining the plurality of feature-specific risk-score values. If the total risk-score value is greater than a given threshold, a corrective action is performed.

Monitoring user authenticity

The invention relates to a cache memory and method for controlling access to data. According to the invention, a control area which is advantageously formed separate from a data area is provided for controlling the access to data stored in the cache and to be read by applicative processes. The control area includes at least one release area with offsets and data version definition sections. Application to shared memories for client server architectures.

Cache memory structure and method

A method and a system for maintaining consistency of replicated files distributed over a plurality of independent processing slave nodes part of an application tier of a multi-tier client/server data processing system are described. The replicated files are distributed from a master node of a master tier. Upon reception of an update request to update a master database a new version of a replicated file is first generated and stored in a shared file system. A notification of availability of the new version is forwarded to a synchronizing slave node and broadcasted to all slave nodes. Each slave node preloads the new version of the replicated file from the shared file system and acknowledges successful completion. Upon reception of all acknowledgments in the synchronization slave node a notification of preloading achievement is forwarded to the master server which updates the master database.

Method and system to maintain strong consistency of distributed replicated contents in a client/server system

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Biot, France

Virginie Amar