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

Claim 12:
13. An control circuit for managing information of an electronic device, the electronic device comprising the control circuit, the control circuit comprising:
a static entropy source, configured to provide static entropy data;
a cryptographic circuit, configured to generate a public key and a private key according to the static entropy data;
a signature generating circuit, configured to generate a digital signature at least according to the private key;
an internal register, configured to store the private key, wherein the internal register is unreadable for outside of the electronic device; and
a non-volatile memory (NVM), configured to store the public key;
wherein the cryptographic circuit generates the public key and the private key to the internal register, the public key is further transmitted to the NVM from the internal register, and the private key is prevented from being transmitted to the NVM, the public key of the control circuit is to be registered into a blockchain by an identifier (ID) management device, and the information of the electronic device is uploaded to the blockchain in conjunction with the digital signature.