tool for decrypting and encrypting OS2 files
zecoxao for original utility
SSL for encrypt code
mathieulh for original psp code
...
git clone https://github.com/Yoti/decrypt_sp
git clone https://github.com/ProximaV/kirk-engine-full
cd kirk-engine-full
git checkout 883f992c02f12639d66be64c42f9771ab5f93691
make
cd ..
cp ./kirk-engine-full/libkirk/libkirk.a ./decrypt_sp/lib/libkirk.a
cd decrypt_sp
make