This entire thing reminds me of the mud puddle test. (http://blog.cryptographyengineering.com/2012/04/icloud-who-holds-key.html http://blog.cryptographyengineer

This entire thing reminds me of the mud puddle test. (http://blog.cryptographyengineering.com/2012/04/icloud-who-holds-key.html http://blog.cryptographyengineering.com/2012/04/icloud-who-h...) In fact that entire blog post is pretty on point.