Patent ID: 11916893
Assignee: NETWORK-1 TECHNOLOGIES, INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A mobile device for communicating with a wireless network, the mobile device comprising:
a first memory configured to store an embedded universal integrated circuit card (eUICC) identity;
a random number generator operably connected to a processor connected to a second memory configured to generate a random number for an eUICC private key corresponding to an eUICC public key;
a radio including one or more transmit antennas and one or more receiving antennas configured to:
a. transmit, to a subscription manager, the eUICC identity and the eUICC public key; and
b. receive, from the subscription manager, i) an eUICC profile comprising network parameters, a key K, and a subscriber identity and ii) a symmetric key; and

an eUICC associated with the eUICC identity and configured to:
a. derive a profile key using an elliptic curve Diffie Hellman (ECDH) key exchange with the eUICC private key and a subscription manager public key;
b. decrypt a first portion of the eUICC profile using the profile key;
c. receive the symmetric key from a network application operating in the mobile device;
d. decrypt a second portion of the eUICC profile using the symmetric key, the second portion comprising the key K and the subscriber identity, wherein the first portion and the second portion are distinct; and
e. generate a response value for authentication of the mobile device with the wireless network using the key K.