Patent ID: 11917402
Assignee: NORDIC SEMICONDUCTOR ASA
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 8:
9. A peripheral digital radio communication device arranged to:
transmit to a central device an advertising packet comprising a first address and a further data portion;
generate a second address by:
encrypting an identity value derived from at least part of said first address using an encryption key and said further data portion, to provide a first portion of the second address;
encrypting the first portion using the encryption key or a further encryption key to generate a second portion of the second address;
transmit to the central device a further advertising packet comprising said second address;
receive a connection request comprising a third address having a first portion and a second portion;
decrypt said second portion of said third address using said encryption key or said further encryption key to determine correspondence with said first portion;
if said correspondence is determined, decrypt said first portion using the encryption key, said identity value and a shared data portion; and
compare said first portion to an expected identity value derived from the first address.