Castles Technology Co., Ltd.
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4. Secure File Loading
Castles implemented an interface in terminal named User Loader (ULD) to provide secure
file loading to system memory. The Loader apply to download user application and kernel
firmware.
The loading process is secure by signing the files using ULD Key System.
4.1. APK Signing
Castles Technology 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
Click on “Enter & Sign Application” to browse file.