US 12,135,957 B2
Dynamic generation of device identifiers
Xiaoxia Cui, Hangzhou (CN)
Assigned to Alibaba Group Holding Limited, (KY)
Filed by Alibaba Group Holding Limited, George Town (KY)
Filed on Sep. 17, 2020, as Appl. No. 17/024,569.
Claims priority of application No. 201910918969.X (CN), filed on Sep. 26, 2019.
Prior Publication US 2021/0096821 A1, Apr. 1, 2021
Int. Cl. G06F 7/58 (2006.01); G06F 12/0804 (2016.01); G06F 12/0862 (2016.01); G06F 21/73 (2013.01); H04L 9/08 (2006.01); H04L 9/32 (2006.01)
CPC G06F 7/588 (2013.01) [G06F 12/0804 (2013.01); G06F 12/0862 (2013.01); G06F 21/73 (2013.01); H04L 9/0866 (2013.01); H04L 9/3278 (2013.01)] 26 Claims
OG exemplary drawing
 
26. A configuration apparatus, comprising:
a processing circuitry configured to:
obtain an identifier configuration request that is in response to a user operation; and
provide a start signal based at least in part on the identifier configuration request;
a true random number generating circuitry configured to generate random information upon being triggered by the start signal provided by the processing circuitry; and
a predetermined storage area configured to store an identifier for identifying the configuration apparatus,
wherein the processing circuitry is configured to write the random information or a data processing result from the random information as the identifier into the predetermined storage area; and
wherein the configuration apparatus being comprised in a system-on-a-chip, wherein the system-on-a-chip further comprises:
a physical unclonable function (PUF) circuitry; and
a mode switching apparatus that is connected to the PUF circuitry and the configuration apparatus, wherein the mode switching apparatus is configured to:
in a first type of mode, start the PUF circuitry and shut down the processing circuitry to cause the PUF circuitry to provide the identifier; and
in a second type of mode, start the processing circuitry and shut down the PUF circuitry to cause the processing circuitry to provide the identifier.