摘要:
The invention relates to the protection by firewall of a domestic community of interconnectable appliances.The invention allows distributed and totally decentralized management of the firewall policy, implemented at the level of each appliance, which is consistent and adapts dynamically to the changes occurring within the domestic network. We shall speak of ubiquitous firewalls.
摘要:
A method for performing at least one evolution operation in a dynamic, evolutive community of devices in a network comprising at least a first device. The method comprises a step of sending at least one message over the network from the first device to a second device, wherein the first device continues the method without acknowledgement of the at least one message from the second device. The method is suitable for execution on clockless devices. A device for performing the method is also claimed.
摘要:
The invention relates to the protection by firewall of a domestic community of interconnectable appliances. The invention allows distributed and totally decentralized management of the firewall policy, implemented at the level of each appliance, which is consistent and adapts dynamically to the changes occurring within the domestic network. We shall speak of ubiquitous firewalls.
摘要:
A method for performing at least one evolution operation in a dynamic, evolutive community of devices in a network comprising at least a first device. The method comprises a step of sending at least one message over the network from the first device to a second device, wherein the first device continues the method without acknowledgement of the at least one message from the second device. The method is suitable for execution on clockless devices. A device for performing the method is also claimed.
摘要:
A new system for creating and updating a secure community of devices in digital networks is disclosed. A device adapted to belong to a community of networked devices contains; a provable identity and/or means for generating and/or obtaining a provable identity; means adapted to store information about devices of the community having trust relationships with the device; means adapted to store information about devices not trusted by this device; and means for trust relationships synchronization.
摘要:
The local digital network comprises: access devices (1), for receiving data originating from outside the network and transmitting them at a point of the network; and presentation devices (2,3) for receiving the data flowing in the network and presenting them at a point of the network. The data flow in the network in encrypted form and all the devices of the network use a single key, the local key of the network, for the encryption and decryption of the data. Preferably, the local key of the network is formed by a pair of public and private keys. The purpose of this network is to make it possible to copy data in the local network whilst preventing pirate copies destined for other local networks.
摘要:
The invention relates to pairing a slave device with a master device, for example decoders in a conditional access system. There is provided a security module that stores a device state that indicates whether a decoder shall be a master or a slave decoder. There is also provided a method in a conditional access system of providing a device with a device state stored on a security module. It is detected that the security module is in connection with the device and the device state is transferred from the security module to the device. There is further provided a method of pairing a slave device with a master device. The slave device asks the master device to identify itself, the master device returns an identification, and if the slave device has not yet been paired with a master device, it checks the identity of the master device and, if the identity is verified pairs with the master device. There is also provided a first, slave, device for pairing with a second, master, device. The first device comprises an interface for sending an identification command to and receiving an identification message from the master device, and a processor for checking the identity of the second device and pairing the first device with the second device.
摘要:
The invention relates to a device for preventing illegal exportation of a content protected by a global copy protection system to a local copy protection system. According to the invention, each content liable to be exported contains a unique identifier and the device comprises a table for storing unique identifiers of all contents that have already been exported through said device. The invention also relates to a method for recording a content received by such a device. This method comprises the steps consisting, if the copy is to be made for a local copy protection system, in checking whether the unique identifier of said content is contained in the table of said device; and should said checking be positive, in preventing the recording; andshould said checking be negative, in recording the content and storing said unique identifier in said table.
摘要:
The invention relates to a local digital network comprising: at least one source device intended to broadcast data over the network; and at least one receiver device intended to receive said data. The source device uses a network active encryption key to encrypt data liable to be broadcast in the network and the receiver device contains: a network active decryption key for decrypting data encrypted using said active encryption key and at least one decryption key of the network for decrypting data encrypted with the aid of an encryption key used previously in the network. The invention also relates to the installing of new devices in such a network as well as the sending of data from a source device to a receiver device.
摘要:
The invention relates to a local digital network comprising: at least one source device intended to broadcast data over the network; and at least one receiver device intended to receive said data. The source device uses a network active encryption key to encrypt data liable to be broadcast in the network and the receiver device contains: a network active decryption key for decrypting data encrypted using said active encryption key and at least one decryption key of the network for decrypting data encrypted with the aid of an encryption key used previously in the network. The invention also relates to the installing of new devices in such a network as well as the sending of data from a source device to a receiver device.