Methods and process of verifying multi-sim device and subscription information
AssigneeNEC Corporation
InventorsTakahito YOSHIZAWA, Shubhranshu SINGH, Sander DE KIEVIT
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Abstract
Provided is a user equipment (UE) including a first Subscriber Identity Module (SIM) and a second SIM, the UE is configured to receive, from a network node, a first token derived from a seed token using a first cryptographic key associated with the first SIM; derive a first third order token by encrypting the received first token using a second cryptographic key associated with the second SIM; and send the third order token to the network node.
Claims19
A method performed by a user equipment (UE) comprising at least a first Subscriber Identity Module (SIM) and a second SIM, the method comprising:
- receiving, from a network node, at least a first token derived from a seed token using a first cryptographic key associated with the first SIM;
- deriving a first third order token by encrypting the received first token using a second cryptographic key associated with the second SIM;
- and
- sending said third order token to the network node.
A method performed by a network node communicating with a user equipment (UE) comprising at least a first Subscriber Identity Module (SIM) and a second SIM, the method comprising:
- sending, to said UE, at least a first token derived from a seed token using a first cryptographic key associated with the first SIM;
- and
- receiving, from said UE, a first third order token derived by the UE by encrypting the first token using a second cryptographic key associated with the second SIM.
16-19. (canceled)
A user equipment (UE) comprising at least a first Subscriber Identity Module (SIM) and a second SIM, a memory storing instructions, and one or more processors,
- wherein the one or more processors configured to execute the instructions to:
- receive, from a network node, at least a first token derived from a seed token using a first cryptographic key associated with the first SIM;
- derive a first third order token by encrypting the received first token using a second cryptographic key associated with the second SIM;
- and
- send said third order token to the network node.
A network node communicating with a user equipment (UE) comprising at least a first Subscriber Identity Module (SIM) and a second SIM, the network node comprising a memory storing instructions, and one or more processors,
- wherein the one or more processors configured to execute the instructions to:
- send, to said UE, at least a first token derived from a seed token using a first cryptographic key associated with the first SIM;
- and
- receive, from said UE, a first third order token derived by the UE by encrypting the first token using a second cryptographic key associated with the second SIM.
22-24. (canceled)
Dependencies are inferred from the claim text.