Based on reverse engineering /usr/lib/libponimg.so
git clone https://github.com/xxtea/xxtea-c
cd xxtea-c
cmake .
make
cd ..
gcc -static -I./xxtea-c -L./xxtea-c -o test test_decrypt.c -lxxtea
./test
Based on reverse engineering /usr/lib/libponimg.so
git clone https://github.com/xxtea/xxtea-c
cd xxtea-c
cmake .
make
cd ..
gcc -static -I./xxtea-c -L./xxtea-c -o test test_decrypt.c -lxxtea
./test