Patent ID: 11893141
Assignee: PUFSECURITY CORPORATION
Field: Digital communication (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 17:
18. The control circuit of claim 13, wherein:
when a processing facility performs testing, assembly or disassembly of the electronic device, the control circuit sends the public key of the control circuit to the processing facility to allow the processing facility to confirm whether the public key of the control circuit is registered in the blockchain, and receives a public key of the processing facility from the processing facility to allow the control circuit to confirm whether the public key of the processing facility is registered in the block chain;
after it is confirmed that any of the public keys of the control circuit and the processing facility is registered in the blockchain, the control circuit sends the digital signature and a processing event of the electronic device to the processing facility, to allow the processing facility to upload the processing event in conjunction with the digital signature to the blockchain.