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Date: Wed, 4 Mar 2009 16:44:09 +0100
Message-ID: <bf119e410903040744l4f6ff63by135a8fd48f9eb6d6@mail.gmail.com>
To: Stefan Walk <et@php.net>
Cc: Pierre Joye <pierre.php@gmail.com>, PHP internals <internals@lists.php.net>
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Subject: Re: [PHP-DEV] Really random ?
From: kureal@kkooporation.de (Kenan Sulayman)

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Guess you're right ;-D

Thanks!
--
(c) Kenan Sulayman
Freelance Designer and Programmer

Life's Live Poetry



2009/3/4 Stefan Walk <et@php.net>

>
> On 4 Mar 2009, at 15:46, Kenan Sulayman wrote:
>
>  Hey Pierre!
>>
>> Didn't I included the mt_rand function in my tests ?
>>
>> Quote: "Average of mersenne twister in 8016909 it's is 1073848211.4106 (
>> corresponding to that in 8503575 it's the avg. is 1073904131.0286)."
>>
>> The mail was meant to make the rand(x) function more good;
>> I already use the mt_rand() function, but why should the rand(x) function
>> still be used, if it's so freakin' insecure ?
>>
>
> I hope that by "insecure" you don't imply that you're using those
> pseudorandom generators for cryptography purposes. As the manual states,
> rand() uses the libc rand(), which can be desirable if you want to generate
> the same sequence of numbers across languages. And you don't need to
> complain about its drawbacks, because they are well-known (see <
> http://en.wikipedia.org/wiki/Linear_congruential_generator#Advantages_and_disadvantages_of_LCGs>).
> If you want "secure" random numbers, use something that at least tries to
> utilize "real" entropy. But that topic has nothing to do with the
> development of PHP ...
>
> Regards,
> Stefan
>
>
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