Patent ID: 11909885
Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 9:
10. The system of claim 1, wherein the operations further comprise:
generating a third encrypted data stream;
generating a third hash code corresponding to the third encrypted data stream, wherein the decryption key corresponding to the first encrypted data stream comprises a combination of the key associated with the first network device, the second hash code, and the third hash code;
sending, via the network to the group of network devices comprising the first network device, the second network device, and a third network device, the first encrypted data stream, the second encrypted data stream, the third encrypted data stream, the first hash code, the second hash code, and the third hash code, wherein the first network device deletes the second encrypted data stream after the first network device hashes the second encrypted data stream and the first network device deletes the third encrypted data stream after the first network device hashes hashing the third encrypted data stream; and
in response to the second network device being determined not to have received the second hash code from the first network device within the defined threshold time, or the third network device being determined not to have received the third hash code from the first network device within the defined threshold time, determining that the first network device is unauthorized to use the network.