Potential source of randomness on the systems that do not have one built in.

I was trying to get GNU Privacy Guard to compile on a Solaris box today.
As you might know, Solaris doesn't have /dev/random or /dev/urandom that
would be capable to provide a source of strong entropy, and consequently
random number generation or "seeding" or an encryption algorithm is
potentiall flawed due to that OS weakness. I was surprized to find out
that GPG people have already attempted to solve that problem with EGD -
Entropy Gathering Daemon, a daemon that runs in userspace and gathers
kernel statistics (number of packets travelling through the interface,
output of `w`, `vmstat`, etc), using them as a source of entropy.

For a short while, when run on non-Linux/*BSD* OS, nmap was complaining
about not being able to find /dev/random or /dev/urandom, consequently the
order in which the ports were scanned was not truly random (I think I am
getting this right. Please forgive me if I am wrong here ;-). In a
revision or two that warning was removed due to complaints from the users,
me included.

Now, I am wondering it it would be possible and a good idea to make `nmap`
detect the presence of EGD, and, in event that it is running, make use of
it as a source of cryptographically strong random numbers on OSes that
lack a kernel level /dev/random.

BTW, URL for EGD is <http://www.lothar.com/tech/crypto/>

Signed:
//Stany,
System Administrator working for HIM.

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+-------+ Stanislav N Vardomskiy - Procurator Odiosus Ex Infernis[TM] +-------+
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