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US 2020/0250346 A1Published application
Method to unlock a secure digital memory device locked in a secure digital operational mode
AssigneeWestern Digital Technologies, Inc.
InventorsVinod Sasidharan, Hitesh Golechchha, Dinesh Kumar Agarwal
Life of this patent
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Abstract
A memory device operable in either of a Secure Digital operational mode and an NVMe operational mode includes password conversion logic to enable the memory device user-mode memory blocks to be accessed in the NVMe operational mode after the memory device was locked in the Secure Digital operational mode.
Claims20
A solid state drive comprising:
- one or more Secure Digital mode password hidden blocks;
- one or more ATA password hidden blocks;
- and
- password conversion logic configured to convert, during booting of the solid state drive in an NVMe operational mode, a password stored in the Secure Digital mode password hidden blocks to a password stored in the ATA password hidden blocks based on a password length.
1 more element
A method of operating an SDExpress memory device, the method comprising:
- booting the SDExpress memory device in a Secure Digital operational mode;
- locking the SDExpress memory device in the Secure Digital operational mode;
- in response to locking the SDExpress memory device in the Secure Digital operational mode, storing a Secure Digital mode password in a security data structure comprising the Secure Digital mode password and a password length;
- booting the SDExpress memory device in an NVMe operational mode;
- and
- transforming the Secure Digital mode password to an NVMe mode password based on the password length.
3 more elements
A solid state drive comprising:
- a host device interface operable in either of a Secure Digital operational mode and an NVMe operational mode;
- and
- a controller configured to:
- boot the solid state drive in the Secure Digital operational mode;
- in response to locking the solid state drive in the Secure Digital operational mode, storing a Secure Digital mode password in Secure Digital mode password hidden blocks comprising the Secure Digital mode password and a password length;
- boot the solid state drive in the NVMe operational mode;
- and
- in response to determining that the solid state drive was locked in the Secure Digital operational mode, transform the Secure Digital mode password to an NVMe mode password based on the password length.
5 more elements
Dependencies are inferred from the claim text.