IoT Security: On-Chip Secure Deletion Scheme using ECC Modulation in IoT Appliances
Na Young Ahn, Dong Hoon Lee

TL;DR
This paper proposes an on-chip secure deletion scheme for IoT devices using ECC modulation to enable real-time data deletion while minimizing program disturbance and allowing verification.
Contribution
It introduces a novel ECC code modulation method for on-chip secure deletion that reduces disturbance and enables real-time verification in NAND flash-based IoT devices.
Findings
Reduces program disturbance in on-chip deletion
Enables real-time verification of data deletion
Improves security for NAND flash IoT devices
Abstract
NAND flash memory-based IoT devices inherently suffer from data retention issues. In IoT security, these retention issues are significant and require a robust solution for secure deletion. Secure deletion methods can be categorized into off-chip and on-chip schemes. Off-chip secure deletion schemes, based on block-level erasure operations, are unable to perform real-time trim operations. Consequently, they are vulnerable to hacking threats. On the other hand, on-chip secure deletion schemes enable real-time trim operations by performing deletion on a page-by-page basis. However, the on-chip scheme introduces a challenge of program disturbance for neighboring page data. The proposed on-chip deletion scheme tackles this problem by utilizing ECC code modulation through a partial program operation. This approach significantly reduces the program disturbance issue associated with neighboring…
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