Patent ID: 11949780
Assignee: INTEL CORPORATION
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 19:
20. A method of a gateway node, the method comprising:
sending a first secret key portion of a multi-part secret key to a first secret holder node;
generating a first secret share based on a second secret key portion of the multi-part secret key and based on existence of a second secret holder node;
generating a second secret share based on the second secret key portion of the multi-part secret key and based on existence of a third secret holder node, the first secret share different from the second secret share;
sending the first and second secret shares to corresponding ones of the second and third secret holder nodes;
receiving a plurality of partly decrypted authentication messages generated by fourth secret holder nodes;
combining the partly decrypted authentication messages and responses from the first secret holder node and at least one of the second secret holder node or the third secret holder node to generate a combined authentication message; and
sending the combined authentication message to a terminal node for authentication.