公开(公告)号：US11930356B2

公开(公告)日：2024-03-12

申请号：US17603325

申请日：2021-04-05

Applicant: Google LLC

Inventor： Marcel M. M. Yung ,  David Lazarov

IPC: H04L29/06 ,  H04L9/08 ,  H04L9/40 ,  H04W12/0471

CPC classification number: H04W12/0471 ,  H04L9/0869 ,  H04L63/0435 ,  H04L2209/80

Abstract: This document describes a three-party cryptographic handshake protocol in a wireless network in which a sighter receives, from a beacon, a packet including an exponentiation of a random value and a proxy value and generates an end-to-end encrypted ephemeral identifier (E2EE-EID) from the exponentiation of the random value and the proxy value. The sighter generates a message for an owner, selects a private key, and computes an exchanged key using the private key and the E2EE-EID. The sighter extracts a common symmetric key from the exchanged key, encrypts the message using the common symmetric key, and transmits the encrypted message to the owner.

公开(公告)号：US20230132742A1

公开(公告)日：2023-05-04

申请号：US17907087

申请日：2021-04-05

Applicant: Google LLC

Inventor： Marcel M.M. Yung ,  David Lazarov

IPC: H04L9/40 ,  H04L9/08 ,  H04L9/30 ,  H04L9/06

Abstract: This document describes methods, devices, systems, and means to ensure end-to-end encryption of location information that is forwarded through a potentially untrustworthy cloud service that serves to forward the location information from a sighting device to an owner of a sighted device. The end-to-end encryption of location information preserves the privacy of location information that is provided by sighter devices that are not associated with the owner as the location information traverses network nodes from the sighter to the owner.

公开(公告)号：US20220124491A1

公开(公告)日：2022-04-21

申请号：US17603325

申请日：2021-04-05

Applicant: Google LLC

Inventor： Marcel M. M. Yung ,  David Lazarov

IPC: H04W12/0471 ,  H04L9/40 ,  H04L9/08

Abstract: This document describes a three-party cryptographic handshake protocol in a wireless network in which a sighter receives, from a beacon, a packet including an exponentiation of a random value and a proxy value and generates an end-to-end encrypted ephemeral identifier (E2EE-EID) from the exponentiation of the random value and the proxy value. The sighter generates a message for an owner, selects a private key, and computes an exchanged key using the private key and the E2EE-EID. The sighter extracts a common symmetric key from the exchanged key, encrypts the message using the common symmetric key, and transmits the encrypted message to the owner.