Memory system and operating method thereof
AssigneeSK hynix Inc.
InventorsHan CHOI, Jae Wan KIM
Life of this patent
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Abstract
Embodiments of the present disclosure relate to a memory system and an operating method thereof. According to the embodiments of the present disclosure, the memory system may generate a nonce based on a physical address of a target area of a memory device using a cryptographic algorithm, and request the memory device to authenticate the nonce. When the authentication for the nonce succeeds, the memory controller may set an authority to perform a read, write or erase operation on the target area. Through this operation, the memory system can prevent data leakage or damage by a user who has no access authority.
Claims18
A memory system comprising:
- a memory device comprising a plurality of memory dies, each including a plurality of memory blocks, each including a plurality of pages having data stored therein;
- and
- a memory controller suitable for communicating with the memory device and executing firmware to control the memory device,
- wherein the memory controller generates a nonce based on a physical address of a target area of the memory device using a cryptographic algorithm and requests the memory device to authenticate the nonce, and
- wherein the memory device sets an authority for the memory controller to perform a read, write or erase operation on the target area when the authentication for the nonce succeeds.
An operating method of a memory system which includes a memory device including a plurality of memory dies, each including a plurality of memory blocks, each including a plurality of pages having data stored therein;
- and a memory controller suitable for communicating with the memory device and executing firmware to control the memory device, the operating method comprising:
- generating, by the memory controller, a nonce based on a physical address of a target area of the memory device using a cryptographic algorithm;
- requesting, by the memory controller, authentication for the nonce;
- authenticating the nonce by the memory device;
- and
- setting, by the memory device, an authority for the memory controller to perform a read, write or erase operation on the target area when the authentication for the nonce succeeds.
Dependencies are inferred from the claim text.