Samsung patents two-step check to verify firmware updates
Samsung describes a method for checking software updates before they are installed on a device. The system uses two different digital keys to verify the update file and its certificate, ensuring the code is authentic before it runs on the hardware.
In the filing’s own words
A method for verifying firmware includes verifying a firmware certificate of the firmware using a first public key, verifying validity of a second public key included in the firmware certificate in response to successful verification of the firmware certificate, verifying the firmware using the second public key in response to successful verification of validity of the second public key, and in response to successful verification of validity of the firmware, installing the firmware in memory of an electronic device to operate hardware of the electronic device according to the firmware.
What exactly they claim (claim 1)
1. A method for transmitting a firmware image for updating an electronic device, the method comprising: generating a signature of a firmware certificate using a first private key; generating a firmware signature for a firmware using a second private key, the second private key different from the first private key; transmitting the firmware image including the firmware, the firmware certificate, and the firmware signature, wherein the firmware is installed in memory of the electronic device to operate hardware of the electronic device according to the firmware.
Facts
- Company
- Samsung (Samsung Electronics Co., Ltd.)
- Official title
- METHOD AND APPARATUS FOR VERIFYING FIRMWARE
- Publication number
- US20260312830A1
- Application number
- 19712220
- Filed
- Jun 18, 2026
- Published
- Oct 8, 2026
- Inventors
- 3
- Claims
- 18
Classified under
H04L 9/3268 Electricity & electronicsH04L 9/0825 Electricity & electronicsH04L 9/3236 Electricity & electronicsH04L 9/3247 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.