CPC H04W 12/50 (2021.01) [H04L 63/0823 (2013.01); H04L 63/18 (2013.01); H04W 12/069 (2021.01); H04W 12/43 (2021.01); H04W 4/80 (2018.02); H04W 84/12 (2013.01)] | 15 Claims |
1. A non-subscriber identity (“non-SI”) device arranged for wireless communication in a local network according to a local communication protocol,
the local communication protocol defining protocol messages and wireless transceiving across a limited area,
the non-SI device not comprising an SI and being arranged for cooperating with a subscriber identity (“SI”) device having access to the SI,
the SI comprising subscriber identity data of a subscriber to a provider for accessing a core network, the core network providing wireless communication for mobile devices across at least a regional area, the non-SI device comprising:
a non-SI private key constituting a pair with a non-SI public key;
a transceiver arranged for local transceiving according to the local communication protocol;
a processor arranged to execute an association sequence to establish an association with the SI, the association sequence comprising:
providing the non-SI public key to the SI device via a first communication channel, and
sharing a verification code with the SI device via a second communication channel for verifying that the SI device has obtained the non-SI public key,
wherein the first and second communication channel being different and one of the channels being an out-of-band (“OOB”) channel, the association sequence further comprising:
providing proof of possession of the non-SI private key to the SI device via the first or the second communication channel, and
receiving, from the SI device, a certificate related to the SI and comprising a signature as generated by a certification authority over at least part of the non-SI public key,
wherein the certificate enables the non-SI device to access the core network via the local network and a gateway between the local network and the core network.
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