US 11,899,946 B2
Customer-specific activation of functionality in a semiconductor device
Lance W. Dover, Fair Oaks, CA (US)
Assigned to Lodestar Licensing Group LLC, Evanston, IL (US)
Filed by Micron Technology, Inc., Boise, ID (US)
Filed on Mar. 31, 2022, as Appl. No. 17/710,675.
Application 17/710,675 is a continuation of application No. 17/014,203, filed on Sep. 8, 2020, granted, now 11,294,582.
Prior Publication US 2022/0221996 A1, Jul. 14, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. G06F 3/06 (2006.01)
CPC G06F 3/0629 (2013.01) [G06F 3/062 (2013.01); G06F 3/0679 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
receiving, by a semiconductor device, a command from a host processor;
generating, by the semiconductor device, a hash value generated from a storage root key;
transmitting, by the semiconductor device, a response code to the host processor, the response code causing the host processor to generate a replacement key;
receiving, by the semiconductor device from the host processor, a command to replace the storage root key;
generating, by the semiconductor device, a candidate replacement key; and
replacing, by the semiconductor device, the storage root key with the candidate replacement key.