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UC-8100-LX Software Manual Security On UC-8100-LX
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Secure Boot
Secure boot is a novel authentication algorithm developed by Moxa which is proposed to secure platform
integration. Only trusted Linux kernel and bootloader could be executed; malicious or un-authenticated kernel
will not be able to boot up the UC-8100-LX. All UC-8100-LX series support this feature by default.
For UC-8100-LX, the kernel file will be stored on SD card in cipher text. This is the first protection for a secure
platform that whoever copies the kernel file cannot understand or to add malicious code easily.
Next, during boot up, the ciphered kernel will be checked and decrypted into to plain kernel. In case the kernel
is being replaced by malicious code, the predefined decryption will not make the code into excutable kernel.
ATTENTION
DO NOT replace kernel or bootloader arbitrary, or the computer will not be able to boot up.
NOTE Secure Boot is only provided with UC-8100-LX standard image. The provided source on Moxa website does not
include source for Secure Boot feature.
Power On
Execute Bootloader
Copy Ciphered Kernel
into Memory
Run-Time Kernel Decryption Process
Plain Text
Kernel