The original binary license file generated by the PS Vita system.

# Decrypt an official eboot.bin using vita-unpack vita-unpack eboot.bin workdir/ # Output: workdir/vita work.bin

: If you are backing up your own games, you can export work.bin from your PS Vita's ux0:app/[GameID]/sce_sys/package/ folder using a tool like VitaShell.

Usually, no. But caution is required.