Marc-Andre Lemburg added the comment:
neologix:
According to man rand(3ssl), OpenSSL uses an internal state of 1023 bytes for
the RNG.
You only see it reading 32 bytes from /dev/urandom in the strace because it has
already loaded 1024 bytes from the RNG state file ~/.rng before adding another
32 bytes:
open("/home/lemburg/.rnd", O_RDONLY) = 3
read(3, "..."..., 4096) = 1024
read(3, "", 4096) = 0
Generating RSA private key, 512 bit long modulus
open("/dev/urandom", O_RDONLY|O_NOCTTY|O_NONBLOCK) = 3
read(3, "...", 32) = 32
FWIW: I'm with Raymond and Tim on this one. I prefer to have a good seed in an
RNG per default, simply because most application don't bother to reseed RNGs
every now and then, so having a good start into the day is important :-)
----------
nosy: +lemburg
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