Moxa UC-8410A-T-LX [39/86] Ciphered

UC-8410A Series Linux Software UC-8410A-LX Security

4-2

Secure Boot

Secure boot is a novel authentication algorithm, developed by Moxa, designed to make platform integration

more secure. Only trusted Linux kernels and bootloaders can be executed, and malicious or un-authenticated

kernels will not be able to boot up the UC-8410A-LX. All UC-8410A-LX computers support this feature by

default.

For the UC-8410A-LX, the kernel file will be stored on the SD card in cipher text. This is the first protection for

a secure platform. Even if someone copies the kernel file, it will be extremely difficult for them to understand

or make malicious modifications to the code.

Next, during boot up, the ciphered kernel will be checked and decrypted into plain kernel format. If the kernel

is being replaced by malicious code, the predefined decryption will not make the kernel code executable.

ATTENTION

Do NOT arbitrarily replace the kernel

or bootloader, or the computer will not be able to boot up.

NOTE

Secure Boot is only provided with the

UC-8410A-LX standard image. The source code provided on Moxa’s

website does not include source code for the Secure Boot feature.

Power

Execute

Copy

Ciphered

Run-Time Kernel

Plain Text

Kern