APPARATUS AND METHODS FOR TRANSMISSION SECURITY IN A COMPUTER NETWORK

摘要

A method for validating a message packet communicated from a source node to a destination node has a header and a body in a computer network is disclosed. The source node and destination node have access to a clock mechanism synchronized with a common time frame. The method comprised generating a first security key using a time reference which is recorded in the time portion of the header that obtained from the clock mechanism and a password known by the source node and destination node, communicating the first security key with a message packet from the source node to the destination node, and when the first security key and message packet are received by the destination node, generating a second security key using the password and the time reference and comparing the second security key with the first security key. The message packet is discarded if the second security key does not correspond with the first security key.