Thales

Benoît Maximilien

Vladimir Ksinant

Laurent Frerebeau

Eric Weber

Jean-Marc Lacroix

Method of managing security entities positioned to cut off an information stream within a network. The method includes designating an entity to act as a sponsor for a new ward wishing to join the network, requesting to connect the ward with the sponsor, said sponsor determining whether or not it accepts the connection. If the sponsor accepts the connection, then connecting the sponsor and disconnecting from the plurality of entities forming the network. At least one of the entities and the sponsor checking a security level of said ward. If at least one of the entities decides to trust said ward, then the sponsor transmits to the ward configuration information to enable the ward to enter into communication with the network. If at least one of the entities decides not to trust the ward, then the ward cannot access the network and an alarm is generated.

Method of management in security equipment and security entity

A security apparatus positioned between at least one domain having a level of trust or of sensitivity A and at least one domain having a level of trust or sensitivity B, bearing in mind that the level A is different from the level B, comprises a virtualization software layer V implemented on the physical layer H and positioned between said physical layer H and at least one set consisting of at least three different compartmentalized blocks having different sensitivity levels, BLA, BLB, MDS. The compartmentalized blocks rest on the physical layer H and the virtualization layer and the blocks include at least one of: a network block A, BLA, comprising all the network functions used to process data of security level A, a network block B, BLB, comprising all the network functions used to process data of security level B, and a security module software block, MDS, or airlock positioned between at least one block of BLA type and at least one block of BLB type, said security module being designed to monitor the exchanges of data between said blocks BLA and BLB, said security module comprising all the security, filtering or cryptographic function transformations.

Security apparatus

The invention relates to a system for processing data that can be exchanged between at least a first domain having a security level A and a second domain having a security level B, A being different from B, characterized in that it comprises at least one elementary entity EEi including a routing module URi and a device UTi for processing data, the routing module URi including at least one input Ii into the domain having the A security level for the data to be processed, and at least one first output Pi for the data that has not been processed and remains in the domain with the A security level, and a second output Li connected to the processing device UTi for the data processed and transferred into the domain with the B security level via the output Oi.

Growing community of inventors

Le Chesnay, France

Benoît Maximilien