US 11,893,141 B2
Method and control circuit for managing information of electronic device
Kai-Hsin Chuang, Hsinchu County (TW)
Assigned to PUFsecurity Corporation, Hsinchu County (TW)
Filed by PUFsecurity Corporation, Hsinchu County (TW)
Filed on Dec. 6, 2021, as Appl. No. 17/542,530.
Claims priority of provisional application 63/151,020, filed on Feb. 18, 2021.
Prior Publication US 2022/0261508 A1, Aug. 18, 2022
Int. Cl. G06F 21/72 (2013.01); H04L 9/32 (2006.01); H04L 9/08 (2006.01); G06F 21/60 (2013.01); H04L 9/40 (2022.01); H04L 9/00 (2022.01)
CPC G06F 21/72 (2013.01) [G06F 21/606 (2013.01); H04L 9/0825 (2013.01); H04L 9/0869 (2013.01); H04L 9/0891 (2013.01); H04L 9/3247 (2013.01); H04L 9/3271 (2013.01); H04L 63/061 (2013.01); H04L 9/3278 (2013.01); H04L 9/50 (2022.05)] 18 Claims
OG exemplary drawing
 
1. A method for managing information of an electronic device including a control circuit, comprising:
utilizing a static entropy source to provide static entropy data;
utilizing a cryptographic circuit to generate a public key and a private key according to the static entropy data, wherein the public key is to be registered into a blockchain by an identifier (ID) management device;
utilizing the cryptographic circuit to generate the public key and the private key to an internal register, wherein the internal register is unreadable for outside of the electronic device;
transmitting the public key to a non-volatile memory (NVM) from the internal register, wherein the private key is prevented from being transmitted to the NVM; and
utilizing a signature generating circuit to generate a digital signature at least according to the private key, wherein the information of the electronic device is to be uploaded to the blockchain in conjunction with the digital signature.