Patent ID: 7865717
Filing Date: 2011-01-04
Classification: H04L,H04W

Abstract:
1. A method for secure routing of a communication packet from a source node of a network to a destination node, comprising: distributing a first public encryption key corresponding to a first private encryption key of the source node to a first intermediate router of the network and to the destination node; distributing a second public encryption key corresponding to a second private encryption key of the source node to the destination node but not to the first intermediate router; encrypting data of the communication packet using the first private key and a second private key of the source node; encrypting a header of the communication packet using the first private key of the source node but not the second private encryption key, the header including routing information; transmitting the communication packet to the first intermediate router; the first intermediate router decrypting the header using the first public key to recover the routing information; the first intermediate router transmitting the communication packet to the destination node in accordance with the routing information; and the destination node decrypting the data using the first public key and second public key.