(enhancement) consider to integrate steganography

[immortal3]

trafficstars

steganography will provide hidding data and and also some good amount of space utilization.

[TheApeMachine]

I am interested to know more... I have never worked with stenography. Will it help keep the file size down? As for hiding the data, I was just going to use bcrypt or something, you think that would be good? I've also written about and implemented a compression algorithm once using Zipf's law, which could work quite well here.

[immortal3]

it depends on which type of steganography algorithm you are using.Check out some simple steganography which are like LSB which don't increase size but depending on format it can vary.