Patent ID: 11937088
Assignee: SORACOM, INC
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method performed by an agent on a device, the method comprising:
receiving a value from a server over a network;
transmitting the value to a subscriber identity module, SIM, on the device;
receiving a first message from the SIM wherein the first message is generated using the value and comprises a signed response and a cipher key;
deriving a pre-shared key using the first message and at least one of the signed response and the cipher key;
receiving a second message over the network from the server, wherein the second message is encrypted using the pre-shared key;
decrypting the second message using the derived pre-shared key; and
transmitting data included in the decrypted second message to the SIM.