Comment Re:Open source win (Score 1) 306
Unfortunately, you can boil the entirety of information theory to 'security through obscurity'. Airplay uses public key encryption and is in that sense 'secure'. Everything that needs to read the encrypted content (in this case the airplay device) needs to have the key to decrypt it. Thus you can argue that the whole system is 'security through obscurity' because it is relying on the 'obscurity' of the private key that the end-user can't get access to (unless the pry it open with a butterknife and dump the ROM).
Yes, you can boil it down to that, but in doing so you ignore the meaning of "security through obscurity" and replace it with a definition so broad that it loses any meaning. Name a system you consider secure that does not rely on "security through obscurity" by your definition.
See http://en.wikipedia.org/wiki/Security_through_obscurity and http://en.wikipedia.org/wiki/Security_by_design