User's Manual

4. Secure File Loading

Castles implemented an interface in terminal named User Loader (ULD) to provide secure

file loading to system memory. The Loader only applies to download the “CAP” file for the

user application and the kernel firmware.

The loading process is secure by signing the files using ULD Key System.

4.1. File Signing

For convert the file to “CAP” file, Castles provides a tool named “CAPGen” to

perform this task.

The CAPGen is located at:

C:\Program Files (x86)\Castles\SATURN1000\tools\CAPG (Evaluation Version)\

 Run CAPGen.exe

 Select the correct CAP Type from the list