As far as i am concerned, the current encryption seems pointless, though in practical terms, even it is unlikely to be broken. I certainly wouldn't see any point in using it for a whole notebook when better levels of security are available. Ideally, we'll get this feature, it will use at least 256 bit encryption, and it will be zero knowledge. The NSA didn’t weaken a crypto standard. Rather, it put a backdoor inside the standard. There’s an important difference. As a consequence, if you use Dual_EC_DRBG, you’re still well-protected if the adversary you’re defending against isn’t the NSA.