Posted by M. Sokolewicz on 01/18/05 19:49

well, since it's the openSSL library that's gathering it, that means ou
can't control it with PHP itself. If you want to somehow change that
process, either modify the library, or (if it's changable via the PHP
extension,) modify the PHP extension for openSSL. Point is, there isn't
(AFAIK/AFAICS) no way to do it VIA php.


Vladas Shukevichus wrote:
> I understand it. That's why I am asking how to make my scripts run
> not 1 second (totally unacceptable), but 0.001 second. May be it's
> possible to make it work faster? May be it can gather entropy only
> once (not every time script executes).
> In the same script OpenSSL gather entropy only at first function call,
> then it can execute other functions very fast, so why can't it
> perform this process once not per script execution, but per hours, or
> let's say once per PHP libraries load in memory? If it can use the
> same entrophy for many functions, why it need to gather it every time
> when script run?
> 18.01.2005 17:24:28
> "M. Sokolewicz" <tularis@php.net> wrote in message
> <20050118152406.66615.qmail@lists.php.net>
>
>>didn't you read what wez said? they're gathering entropy... you
>
> *can't*
>
>>(and shouldn't want to) prevent that.
>>
>>
>>Vladas Shukevichus wrote:
>>
>>>Hello, Gents,
>>>When I use any OpenSSL encryption/decryption function (like
>>>openssl_seal, openssl_open, openssl_public_encrypt,
>>>openssl_private_decrypt, etc.) it takes very long time to execute,
>
>
>
>>>when
>>>it has been called in a first time. After that other function
>
> calls
>
>>>performs very fast in the same script.
>>>[18 Jan 1:23am CET] wez@php.net:
>>>Not a php bug; the openssl libraries are gathering entropy on
>
> that
>
>>>first
>>>hit.
>>>How can I prevent this? All scripts executes a second longer, if
>>>there are any OpenSSL function.
>>>Reproduce code:
>>>---------------
>>>$btime = microtime(true);
>>>openssl_seal('Some information', $sealed, $ekeys,
>>>array(openssl_get_publickey('file://C:\512.pub')));
>>>echo 'Time: '.(microtime(true) - $btime);
>>>$btime = microtime(true);
>>>openssl_seal('Some information', $sealed, $ekeys,
>>>array(openssl_get_publickey('file://C:\1024.pub')));
>>>echo '<br>Time: '.(microtime(true) - $btime);
>>>Expected result:
>>>----------------
>>>Time: 0.00************
>>>Time: 0.00075888633728
>>>Actual result:
>>>--------------
>>>Time: 0.969028949738
>>>Time: 0.00075888633728

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