Samsung patents encrypted logs to predict drive failures
Samsung describes a storage device that records small data errors in a log called a correctable event record. It uses a type of encryption that allows a management system to analyze the log for patterns without seeing the raw data, helping predict when the storage might fail.
In the filing’s own words
A device is disclosed. The device may include a connection to a host or a management unit, a media to store a data, and a controller to access the data in the media based at least in part on a request from the host. A buffer may store a correctable event record, which may include fields. Some fields in the correctable event record may be encrypted using a homomorphic encryption (HE) algorithm and an encryption key.
What exactly they claim (claim 1)
1. A device, comprising: a connection to a host or a management unit; a media to store a data; a controller to access the data in the media based at least in part on a request from the host; a buffer to store a correctable event record, the correctable event record including a first field and a second field, the first field encrypted using a homomorphic encryption (HE) algorithm and an encryption key; and an HE engine to encrypt the first field in the correctable event record using the HE algorithm, wherein the management unit is configured to predict an uncorrectable error at an address in the media based at least in part on the correctable event record, and wherein the encryption key is local to the device.
Facts
- Company
- Samsung (Samsung Electronics Co., Ltd.)
- Official title
- SECURE EVENT TRANSFER USING HOMOMORPHIC ENCRYPTION
- Publication number
- US20260312786A1
- Application number
- 19292900
- Filed
- Aug 6, 2025
- Published
- Oct 8, 2026
- Inventors
- 2
- Claims
- 20
Classified under
H04L 9/008 Electricity & electronicsMore from Samsung in Security & privacy
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Summaries are simplified from the filing’s own abstract and first claim. A patent filing is not a product announcement.
Patent data and drawings: U.S. Patent and Trademark Office (USPTO). Nebula is not affiliated with or endorsed by the USPTO.