Abstract: A communication apparatus includes an encryption key generation unit that generates encryption key information at constant encryption key generation intervals, a common key generation unit that generates common key information uniquely with respect to a generation time at common key generation intervals set longer than the encryption key generation intervals, a common key application unit that performs encryption or decryption of the encryption key information by using the common key information, and an encryption key distribution unit that makes a request to a data transmitting/receiving unit to distribute the encryption key information to a plurality of communication apparatuses to be communicated simultaneously at encryption key distribution intervals set shorter than the encryption key generation intervals to perform communication with higher security.

Abstract: In the global information sharing and distributing service system, the public use of idle resources can be propelled and sufficient security can be guaranteed on the resources for private use. A node machine configuring an information network includes resources located in a private zone available to private use, resources located in a public zone for public service use, and a private resource security management unit for management of the security of the resources located in the private zone.

Abstract: In a node device 1 in a communication network, an FID management table 5 stores an FID for unique identification of a frame and the information about a destination node of the frame, and a weighting table 7 stores weighting information about another node as a destination for relay of the frame for each final destination node of the frame. When a frame transmitted to a local node is received, and if the FID of the received frame is stored in the FID management table 5, the data about the destination node associated with the FID is updated. If the FID of the frame received from the frame reception device is not stored in the FID management table 5, the FID management table 5 corresponding to the destination node of the frame is referred to, and another node as a destination for relay of the frame is determined.

Abstract: A node apparatus changes a first access key unique to itself; changes a shared key same for node apparatuses; encrypts, using the shared key, the first access key and transmits it; receives an access key notification frame; decrypts it using the shared key, thereby obtaining a second access key; attaches, to a first plaintext frame, first signature data obtained by encrypting, using the shared key, data including a first value calculated from the first plaintext frame; encrypts the first plaintext frame using the second access key and transmits thus encrypted frame; receives a second encrypted frame; decrypts it by the first access key to obtain a second plaintext frame; obtains a second value by decrypting, using the shared key, a second signature data attached to the second plaintext frame; calculates a third value from the second plaintext frame; and confirms whether the second and third values are consistent.

Abstract: An object cooperative network system for executing processing in cooperation between objects connected by a common communication path. Each of the objects includes a transmitting section to transmit messages that include predetermined information to the network system. In addition, each object includes a monitoring section to monitor the predetermined information of the transmitted messages, and a reaction table to indicate correspondence between the transmitted messages. Each of the objects sets information to which the object should respond in the monitoring section, and receives a message to execute processing by making reference to the reaction table when information to which the object should respond is detected.

Abstract: In object collaboration via a message, various message types are dealt with. Furthermore, synchronization processing between objects is conducted easily and flexibly. A message type is previously classified and arranged hierarchically. A message/action reaction table 103 arranged on the message type basis is held in a message/action reaction relationship storing part 102. A received message is subjected to matching by a message type classifying/matching part 107. When the received message is matched with a message type dealt with by the message/action reaction relationship storing part 102, the message is given to an action executing part 104. When the received message is not matched with a message type dealt with by the message/action reaction relationship storing part 102, the message is discarded.

Abstract: A policy that relates attributes of an agent to a role is distributed to each agent on a network. A field connector generates an internal field in accordance with an instruction of a security manager. A ROLE manager uses attribute information from an attribute manager, and assigns each agent a ROLE in accordance with the attributes of each agent, and installs a ROLE method table and a ROLE execution part. When receiving a message from an external network, each agent searches for a corresponding ROLE by referring to the ROLE method table, and executes the ROLE. Thus, collaboration among agents is realized through a virtual communication channel based on the exchange of a message.

Abstract: When data is to be transmitted from a transmission source to a transmission destination in a wireless or wired ad-hoc network constructed in an indoor environment such as a house or an office, the data is transmitted by using a path that is formed over a plurality of channels that the respective nodes have. Also, when data transmission with high reliability is to be performed, same data is sent to two or more paths, thereby even when the data on one path cannot be normally delivered due to noise, the data can be delivered to the transmission destination without being affected by the noise by using the data transmitted on another channel.

Abstract: An information mediating apparatus has: a mediating condition file in which mediating condition list data describing specific mediating conditions has been stored; and a personal information file in which personal information peculiar to a person, a group, or the like has been stored. A mediation service processing unit reads out the mediating condition list data designated in response to a mediating request from the user from the mediating condition file, notifies a backend server in a service providing server group, collects and selects service information matched with the mediating condition list data, and displays it to the user. The mediating service processing unit is constructed by: a user interface processing unit having an HTML forming function; and a logic processing unit described as an information mediating program.

Abstract: In the global information sharing and distributing service system, the public use of idle resources can be propelled and sufficient security can be guaranteed on the resources for private use. A node machine configuring an information network includes resources located in a private zone available to private use, resources located in a public zone for public service use, and a private resource security management unit for management of the security of the resources located in the private zone.

Abstract: A policy that relates attributes of an agent to a role is distributed to each agent on a network. A field connector generates an internal field in accordance with an instruction of a security manager. A ROLE manager uses attribute information from an attribute manager, and assigns each agent a ROLE in accordance with the attributes of each agent, and installs a ROLE method table and a ROLE execution part. When receiving a message from an external network, each agent searches for a corresponding ROLE by referring to the ROLE method table, and executes the ROLE. Thus, collaboration among agents is realized through a virtual communication channel by means of the exchange of a message.

Abstract: A communication apparatus includes a plurality of communication nodes that select one communication route from among a plurality of communication routes, and perform a unicast communication with a communication partner on the communication route selected; and a wire that is used as a medium for supplying power to each of the communication nodes and as a communication medium between communication nodes, and connects each of the communication nodes to form a network of the communication route.

Abstract: An object collaboration apparatus is driven by a message action relation, and can dynamically build a collaboration between objects using a bidding system. A task initiator object circulates a requesting message, indicating the service content that the task initiator object wants to request, on a shared communication channel 504, and this requesting message is received by each service object. If an action that is a reaction to the message is listed in a reaction table 703 stored by the service objects, the service objects create and return a bidding message, which includes a bidding value, for example the CPU load ratio, with the bidding portion 707. An arbitrating portion of the initiator object receives all bidding messages in a certain period of time, and, in consideration of parameters such as the bidding value and the communication time between objects, determines and awards the bid to the bid-winning object. Then, it sends out the requested processing information together with the bid awarding message.

Abstract: A storage device that is detachably attachable to an information processing apparatus, comprises an IC chip; a first control unit extracting a control command for the IC chip included in a control command for the storage device from the information processing apparatus; and a second control unit performing interface conversion corresponding to the IC chip on the control command for the IC chip extracted by the first control unit and giving the converted control command to the IC chip.

Abstract: In the global information sharing and distributing service system, the public use of idle resources can be propelled and sufficient security can be guaranteed on the resources for private use. A node machine configuring an information network includes resources located in a private zone available to private use, resources located in a public zone for public service use, and a private resource security management unit for management of the security of the resources located in the private zone.

Abstract: An object collaboration apparatus is presented, in which driving is performed in accordance with message/action reaction relations, and the collaboration among objects can be changed in a flexible and dynamical manner. A message/action reaction relation in a message/action reaction table 103 of a message/action reaction relation storage portion 102 storing relations between messages and information on actions that are reactions to the messages is separated with a message/action reaction relation separation portion 106 of a message/action reaction relation update control portion 105, and a new message/action relation is organized with a message/action reaction relation organizing portion 107.

Abstract: An object cooperative network system for executing processing in cooperation between objects connected by a common communication path. Each of the objects includes a transmitting section to transmit messages that include predetermined information to the network system. In addition, each object includes a monitoring section to monitor the predetermined information of the transmitted messages, and a reaction table to indicate correspondence between the transmitted messages. Each of the objects sets information to which the object should respond in the monitoring section, and receives a message to execute processing by making reference to the reaction table when information to which the object should respond is detected.

Abstract: An object cooperative network system for executing processing in cooperation between objects connected by a common communication path. Each of the objects includes a transmitting section to transmit messages that include predetermined information to the network system. In addition, each object includes a monitoring section to monitor the predetermined information of the transmitted messages, and a reaction table to indicate correspondence between the transmitted messages. Each of the objects sets information to which the object should respond in the monitoring section, and receives a message to execute processing by making reference to the reaction table when information to which the object should respond is detected.

Abstract: A system includes an attribute information DB accumulating attribute information which is a material for evaluating the qualification for receiving a provided service, a policy DB accumulating policies having a condition of receiving a service and a service description section describing a service provided when the condition is satisfied, a policy evaluation section obtaining the information indicating whether or not the user has the attribute information satisfying the condition described in the condition description section in the policy, and a function execution section providing a service described in the service description section of the policy on condition that the information that the user has the attribute information satisfying the condition is acquired.

Abstract: Each object belonging to a network manages loaded functions in a function managing section. The function managing section generates an argument type table that provides correspondences between the functions and argument types, and stores the same in an argument type table section. When a message input/output section receives a structured message that runs through the network, an argument type matching section executes a matching process between an argument type of the received message and argument types of the functions in the argument type table in the argument type table section. In the case where the matching between the argument types is established, an executing section is notified of the matching, activates a corresponding function from the function managing section, and executes the same. This increases freedom of collaboration between objects connected to a network, thereby allowing object collaboration to be constructed irrespective of object interfaces.