2007-04-14 ■ sec-summary ドキュメント・読み物 Security and Obscurity http://dmiessler.com/study/security_and_obscurity/ 上記の関連で http://en.wikipedia.org/wiki/Kerchoffs_law http://en.wikipedia.org/wiki/Security_through_obscurity http://www.bastille-linux.org/jay/obscurity-revisited.html