Reminds me a bit of differential privacy too ( http://en.wikipedia.org/wiki/Differential_privacy http://en.wikipedia.org/wiki/Differential_privacy ). I wonder h

Reminds me a bit of differential privacy too ( http://en.wikipedia.org/wiki/Differential_privacy http://en.wikipedia.org/wiki/Differential_privacy ). I wonder has anyone looked into connections between visual crypto, steganography, and differential privacy?