Security enhanced storage device

CN119622838APending Publication Date: 2025-03-14SAMSUNG ELECTRONICS CO LTD
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Patent Information

Application Number
CN202411269442.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2023-09-12
Filing Date
2024-09-11
Publication Date
2025-03-14

AI Technical Summary

Technical Problem

Existing solid-state drive (SSD) devices have defects in data security, especially when the device is damaged or stolen, data is prone to leakage, and prior art is difficult to effectively manage encrypted data and security keys.

Method used

A storage device is designed, which includes a substrate, a nonvolatile memory device and a storage controller. The storage controller detects changes in the state of the housing through the sensing pin and performs data protection operations based on this, including encrypting hot and cold data, and blocking or erasing access to security keys.

Benefits of technology

Effectively manage and protect encrypted data and security keys stored in SSD devices, prevent data leakage and unauthorized access, and improve data security.

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Abstract

A storage device with enhanced security is provided. The memory device includes: a security pad; a non-volatile memory device; and a memory controller including a sensing pin connected to the security pad. The storage controller is configured to: classify data corresponding to input / output requests of the non-volatile memory device as hot data or cold data based on an access frequency with respect to the data; encrypting write data to be stored in the non-volatile memory device; and performing a data protection operation to encrypt the hot data based on a change in signal at the sensing pin according to a change in electrical contact of a physical sensing structure, the physical sensing structure including a security pad and a locking structure. A locking structure in electrical contact with the security pad extends through a via defined in the substrate.
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Citation Information

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