[ale] what's the difference between

[David Tomaschik]

/dev/random is a high quality (cryptographic) random number generator, and
will block if there is insufficient entropy.  /dev/urandom will use a
pseudo-random number generator to fill requests instead of blocking like
/dev/random.

David


2008/12/5 Jim Kinney <jim.kinney at gmail.com>

> /dev/random and /dev/urandom?
>
> /dev/random is very slow and on a newly installed machine `cat /dev/random`
> does little. Same machine `cat /dev/urandom` fills the screen quickly.
>
> Is there a way to "add entropy" to get /dev/random to fill quicker?
>
> --
> --
> James P. Kinney III
>
>
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