A system for transmitting encrypted data. A plurality of nested communication links are communicably connected to a network. Each communication link includes an originating node and a terminating node which are adapted to route a transmission therebetween. Transmissions between the originating node and the corresponding terminating node of the outermost communication link is routed through at least one inner communication link. The originating node of the outermost communication link generates a transmission having a data part and a first header part, both in an encrypted format, and routes the transmission to the corresponding terminating node. The originating node of an inner communication link modifies the transmission by removing unencrypted references to other communication links; adding a second header part in an encrypted format, and routing the transmission to the corresponding terminating node, where the second header part is decrypted and the transmission is rerouted to an outer communication link.