>Why are network entropy not enabled by default?
>	/*
>	 * force network devices to not collect any entropy by
>	 * default
>	 */
>	if (type == RND_TYPE_NET)
>		flags |= (RND_FLAG_NO_COLLECT | RND_FLAG_NO_ESTIMATE);

	i'm guessing...
	since we are not 100% sure if network devices are trustworthy random
	number source, as outsiders may be able to affect the "randomness"
	that comes from the device?

itojun