Re: random_seed()
| From: | Pierre Joye | Date: | Mon, 01 Apr 2019 07:57:34 +0000 |
| Subject: | Re: random_seed() | ||
| References: | 1 2 | Groups: | php.internals |
| Request: | Send a blank email to internals+get-105023@lists.php.net to get a copy of this message | ||
Good afternoon,
fully correct. Seeds are not needed anymore.
best,
On Mon, Apr 1, 2019, 12:44 PM Arvids Godjuks <arvids.godjuks@gmail.com>
wrote:
> On Mon, Apr 1, 2019, 05:52 David Rodrigues <david.proweb@gmail.com> wrote:
>
> > Just to know, can we have a random_seed() for random_int()/random_bytes()
> > like we have mt_srand() to mt_rand()?
> >
> > I don't know if random_int() is more "random" than mt_rand(), but if it
> is,
> > so maybe is valid a random_seed() function.
> >
> > --
> > David Rodrigues
> >
>
> Hello,
>
> random_bytes/random_int use proper random generation source - /dev/urandom
> in most cases (and appropriate source on windows) - that's the whole point
> why they were introduced. There is no need for seeds nor it can even be
> initialized with a seed.
> They are, as far as I understand, cryptographically safe random generators.
>
> I suggest reading up on the subject, the RFC and the whole thing. Their
> introduction was well covered by various core devs in blog posts.
>
> >
>