Default [Q] Best way to backup encrypted Android?

Hi

What is the best way to back up an encrypted Cyanogenmod 11 device? I generally use my recovery mode but I have been reading that some of those boot
might not support the encryption well. What are my options? I do not use google apps/google play so it has to be open source and accessible. I do not mind paying for it, but it must accept non play store pay methods.

thanks