> -----Original Message-----
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of Erik Leunissen
> Sent: Wednesday, September 27, 2006 4:53 PM
> To: openssl-users@openssl.org
> Subject: Re: Seeding the OpenSSL PRNG
> 
> Dr. Stephen Henson wrote:
> > 
> > OpenSSL makes use of some standard sources of entropy on various 
> > platforms to seed the PRNG automatically. On linux this 
> includes the 
> > /dev/urandom device and on Windows various things including 
> the CryptoAPI PRNG.
> > 
> 
> OK, that explains, thanks.
> 
> The program is going to be distributed to clients who run a 
> Windows variant (2000, XP) or a unix-like OS (*BSD, Solaris, 
> Linux, ...).
> 
> I reckon that /dev/urandom is present on most unices, so I 
> can count on the automatic PRNG seeding.

Beware - some versions of HPUX do not come with a suitable random data
device. If I recall correctly, HPUX 11.00 and 11.11 do not have one, but
HPUX 11.22 does. Your end-users may need to install one of the random
data devices available from HP (they freely provide /dev/random,
/dev/urandom and their own version of openssl with a bundled random data
device)
SunOS/Solaris 5.6 and 5.7 also lack a random data device.

--
Adam Mlodzinski 
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