Tagged Questions
12
votes
3answers
225 views
What statistics can be used to identify pseudorandom data?
I'm working on some code that attempts to identify files whose contents appear to be "random". As such, I'm looking for statistical measures that can be used to identify such randomness.
I've ...
5
votes
2answers
193 views
How is the available entropy in /dev/random calculated (or estimated)?
It seems (to a non-expert) that /dev/random is acclaimed to be useable as a source of pure random data. However, I am curious as to the analysis of the file /dev/random.
/dev/random is a collection ...
10
votes
3answers
418 views
Is a predictable MAC address a risk?
If you knew from the public internet that a certain IP address belonged to a machine with a certain MAC address, can you see any security exposure associated with that? I know that some software will ...
3
votes
3answers
362 views
Pseudo Random Generator is not initialized from the (entropy pool)?
The RHEL5 manuals state that /dev/urandom will use the entropy pool until it's exhausted, and then it will resort to a fall-back pseudo-random algorithm, so that it will never block.
But when ...
3
votes
2answers
958 views
/dev/random security holes
I'm doing some reading into the security issues surrounding /dev/random but it's proving to be hard to find good sources of information. Can anybody help? I've asked Google and got a bunch of articles ...
11
votes
2answers
602 views
Evaluating the entropy gathering in a PRNG
I'm reviewing the random number generator (expected to be of cryptographic quality) on an embedded device. My point of view here is the operating system and crypto library implementer. I'm ...
