because otherwise BN_rand will fail unless DEVRANDOM works,
which causes the programs to dump core because they
don't check the return value of BN_rand (and if they
did, we still couldn't test anything).
- add comment to some files that appear not to be used at all.
but the BN code had some problems that would cause failures when
doing certificate verification and some other functions.
Submitted by: Eric A Young from a C2Net version of SSLeay
Reviewed by: Mark J Cox
PR: