Patent ID: 8347090
Filing Date: 2013-01-01
Classification: H04L,H04W

Abstract:
1. A method comprising: sending a request for an identifier from a first network entity to a user equipment; receiving, by the first network entity, a first message indicating that a public key is required by the user equipment; receiving, by the first network entity, a second message identifying a second network entity where the public key is stored; determining, by the first network entity, the identity of the second network entity based on at least the second message; sending, by the first network entity, the request to the second network entity for the public key based on at least the determining; receiving, by the first network entity, the public key from the second network entity; sending, by the first network entity, the public key to the user equipment; and receiving, by the first network entity, an encrypted identifier sent from the user equipment, wherein upon authenticating the public key, the user equipment encrypts at least part of the identifier using the public key sent to the user equipment by the first network entity.