Alright - when you run getfw and use 'killall getfw' immediately, the decrypted squashfs file is still on the disk:/mnt/TEFW/firmware.squashfsIn that moment, you can mount this image as mentioned by olivier.nicolas and have access to the firmware.
I got getfw running using an old Debian 7.0 version using OpenSSL 1.0.1t. However, this does not give me the LSI firmware that I need. What is the way to extract that firmware? Any chance to post that password in a PM ?