US 12,014,059 B2
Storage devices, methods of operating storage devices, and methods of operating host devices
Kyung-Jin Lee, Seoul (KR); Ji Soo Kim, Seongnam-si (KR); Kyung-Woo Noh, Yongin-si (KR); and Young Hyun Ji, Hwaseong-si (KR)
Assigned to Samsung Electronics Co., Ltd., (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on Jul. 27, 2022, as Appl. No. 17/815,245.
Claims priority of application No. 10-2021-0182656 (KR), filed on Dec. 20, 2021.
Prior Publication US 2023/0195332 A1, Jun. 22, 2023
Int. Cl. G06F 3/06 (2006.01)
CPC G06F 3/0623 (2013.01) [G06F 3/0652 (2013.01); G06F 3/0679 (2013.01)] 20 Claims
OG exemplary drawing
 
18. A method of operating a host device, comprising:
transmitting, to a storage device including a nonvolatile memory (NVM), a command giving instructions to sanitize data with the use of a cryptographic erase; and
receiving, from the storage device, a first verification value indicative of whether a first media encryption key (MEK) stored in the NVM has been deleted and a second verification value indicative of whether a second MEK, which is different from the first MEK, has been generated and stored in the NVM.