Abstract: A method for securely transmitting data from a sender computer system to a receiver computer system comprises receiving cleartext message by a first intelligent agent environment; splitting said message into a plurality of message fragments; creating an intelligent agent for each message fragment; generating a key for each message fragment; encrypting each said message fragment to produce a respective encrypted message fragment; and transmitting each intelligent agent with said respective encrypted message fragment as a data payload. The method may further comprise receiving each intelligent agent with its respective encrypted message fragment as a data payload by a second intelligent agent environment at the receiver computer system; locating each of a set of agents; decrypting each encrypted respective message fragment to produce a respective cleartext message fragment; and collaborating by the set of agents to recombine cleartext message fragments to form a cleartext message.

Abstract: A mobile intelligent agent is used in a Byzantine fault-tolerant computing network. The mobile intelligent agent ensures that only a single instance of the mobile intelligent agent performs processing in the processing host. The agent interrogates an environment in the processing host for presence of a sibling mobile intelligent agent or a trace left by a sibling mobile intelligent agent. If a sibling mobile intelligent agent or a trace left by a sibling mobile intelligent agent is detected, further execution by the mobile intelligent agent in the processing host is ended. The agent will then be forwarded onward to find a processing host wherein the agent has not been executed.

Abstract: A method for securely transmitting data from a sender computer system to a receiver computer system comprises receiving a cleartext message by a first intelligent agent environment; splitting said message into a plurality of message fragments; creating an intelligent agent for each message fragment; generating a key for each message fragment; encrypting each said message fragment to produce a respective encrypted message fragment; and transmitting each intelligent agent with said respective encrypted message fragment as a data payload. The method may further comprise receiving each intelligent agent with its respective encrypted message fragment as a data payload by a second intelligent agent environment at the receiver computer system; locating each of a set of agents; decrypting each encrypted respective message fragment to produce a respective cleartext message fragment; and collaborating by the set of agents to recombine cleartext message fragments to form a cleartext message.

Abstract: A mobile intelligent agent is used in a Byzantine fault-tolerant computing network. The mobile intelligent agent ensures that only a single instance of the mobile intelligent agent performs processing in the processing host. The agent interrogates an environment in the processing host for presence of a sibling mobile intelligent agent or a trace left by a sibling mobile intelligent agent. If a sibling mobile intelligent agent or a trace left by a sibling mobile intelligent agent is detected, further execution by the mobile intelligent agent in the processing host is ended. The agent will then be forwarded onward to find a processing host wherein the agent has not been executed.

Abstract: A method of operating a communication system which comprises a plurality of clients and a data repository, comprises the steps of detecting a location change of the data repository, acquiring data defining the clients connected to the data repository, transmitting a component to each client defined by the data, receiving the component at each client, and updating a user link to the data repository, at each client, according to the component. The step of transmitting a component to each client defined by the data comprises can comprise replicating an agent for each client.