Security quotes of the week
[Posted September 18, 2013 by jake]
At the end of the day, there is no real replacement for a real HWRNG
[Hardware Random Number Generator].
And I've never had any illusions that the random driver could be a
replacement for a real HWRNG. The problem is though is that most
HWRNG can't be audited, because they are not open, and most users
aren't going to be able to grab a wirewrap gun and make their own ---
and even if they did, it's likely they will screw up in some
embarrassing way. Really, the best you can do is [hopefully] have
multiple sources of entropy. RDRAND, plus the random number generator
in the TPM, etc. and hope that mixing all of this plus some OS-level
entropy, that this is enough to frustrate the attacker enough that
it's no longer the easiest way to compromise your security.
—
Ted Ts'o
The NSA's belief that more data is always good, and that it's worth doing anything in order to collect it, is wrong. There are diminishing returns, and the NSA almost certainly passed that point long ago. But the idea of trade-offs does not seem to be part of its thinking.
The NSA missed the Boston Marathon bombers, even though the suspects left a really sloppy Internet trail and the older brother was on the terrorist watch list. With all the NSA is doing eavesdropping on the world, you would think the least it could manage would be keeping track of people on the terrorist watch list. Apparently not.
I don't know how the CIA measures its success, but it failed to predict the end of the Cold War.
More data does not necessarily mean better information. It's much easier to look backward than to predict. Information does not necessarily enable the government to act. Even when we know something, protecting the methods of collection can be more valuable than the possibility of taking action based on gathered information. But there's not a lot of value to intelligence that can't be used for action. These are the paradoxes of intelligence, and it's time we started remembering them.
—
Bruce
Schneier
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