Multi-node encryption

摘要

For multi-node encryption, a method generates an upstream node nonce from communication data exchanged with an upstream node. In addition, the method generates a first upstream message transformation as a function of the upstream node nonce. The method further generates a tunnel transformation as a function of previous upstream message transformations and the first upstream message transformation.

主权项

1. A method comprising:
communicating an Internet control message protocol (ICMP) message from a first upstream node to a first downstream node in response to the first upstream node initiating a secure communication with the first downstream node; generating, by use of a processor, a downstream node nonce from the ICMP message exchanged with the first downstream node; generating a first downstream message transformation as a function of the downstream node nonce, wherein the downstream node nonce is an input to a message transformation generator; receiving a request encrypted with the first downstream message transformation through the first downstream node from a destination node that is downstream of the first downstream node, wherein the request is for an upstream message transformation that is shared between the first upstream node and a second upstream node that is upstream of the first upstream node; communicating the upstream message transformation encrypted with the first downstream message transformation through the first downstream node to the destination node in response to the request; and generating a tunnel transformation at the destination node as a function of one or more upstream message transformations and the first downstream message transformation.