The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 04, 2025
Filed:
Mar. 07, 2024
Huawei Technologies Co., Ltd., Shenzhen, CN;
Antoine Fressancourt, Boulogne Billancourt, FR;
Luigi Iannone, Boulogne Billancourt, FR;
Zhe Lou, Munich, DE;
Huawei Technologies Co., Ltd., Shenzhen, CN;
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.