Bug #51636 [Fbk->Csd]: openssl_random_pseudo_bytes() painfully slow
Edit report at http://bugs.php.net/bug.php?id=51636&edit=1
ID: 51636
Updated by: pajoye@php.net
Reported by: kaisellgren at gmail dot com
Summary: openssl_random_pseudo_bytes() painfully slow
-Status: Feedback
+Status: Closed
Type: Bug
Package: OpenSSL related
Operating System: Windows
PHP Version: 5.3.2
Assigned To: pajoye
Block user comment: N
Private report: N
New Comment:
It is not related to this bug.
This bug was due to a wrong implementation, which was using RAND_Screen.
The "delay" here is not one per se and is relatively constant. Please open a new
one for performance issue, there may have some ways to do not call the crypto
API everytime but to store a minimum amount of bytes per request (random size).
Move back to close.
Previous Comments:
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[2011-06-14 17:55:14] scottmac@php.net
It's a by reference parameter, not an option parameter.
I don't see the delay here on Win7 x64 with 5.3-dev
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[2011-06-14 17:40:49] seld@php.net
On 5.3.6, Win7 x64, and it seems on other windows versions as well, the call to
openssl_random_pseudo_bytes() still takes one second. Since apparently doing non-crypto-safe output
is not possible on windows, it would be great to at least work on the delay for crypto-safe output.
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[2011-06-14 11:18:05] pajoye@php.net
Windows version?
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[2011-06-14 10:22:18] seld@php.net
The changelog says this has been fixed in 5.3.4, but the function still takes 1second to return on
my machine (5.3.6). Note that the amount of bytes doesn't matter, and it's always around
1second.
$t = microtime(true);
openssl_random_pseudo_bytes(1, $strong);
var_dump(microtime(true) - $t, $strong);
Outputs:
float 1.0317049026489
boolean true
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[2010-04-23 10:47:16] pajoye@php.net
Under CLI or inside a web server?
Can you try under CLI please?
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