公开(公告)号：US20240214196A1

公开(公告)日：2024-06-27

申请号：US18598853

申请日：2024-03-07

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Antoine FRESSANCOURT ,  Luigi IANNONE ,  Zhe LOU

IPC: H04L9/08

CPC classification number: H04L9/088

Abstract: Devices and methods for routing data packets in a communication network from a source node to a destination node via one or more intermediate routing nodes in a privacy-preserving manner are disclosed. The source node is configured to concatenate a first routing vector element including a first bit pattern with an initial routing vector defining a bit string, encrypt the concatenation using a selected first encryption key, and replace a portion of the encrypted initial routing vector at a first position by the encrypted first routing vector element. Moreover, the source node is configured to concatenate a second routing vector element, including a second bit pattern and routing information of the destination node, with the modified routing vector, encrypt the concatenation using a selected second encryption key, and replace a portion of the encrypted modified routing vector at a second position by the encrypted second routing vector element.
(FIG. 1)