MCRYPT

[FD]

I am having a big problem with the following line... it runs very well
on linux but I don't get why it doesn't work on winxp
$_SESSION['_mcrypt_iv'] =
mcrypt_create_iv(mcrypt_get_iv_size(MCRYPT_RIJNDAE L_256,
MCRYPT_MODE_ECB), MCRYPT_DEV_URANDOM);

I am getting a warning
Warning: mcrypt_create_iv(): Cannot open source device in
C:\apache\htdocs\filename.php

any suggestion..

thanks

[Peter van Schie]

FD wrote:

I am having a big problem with the following line... it runs very well
on linux but I don't get why it doesn't work on winxp
$_SESSION['_mcrypt_iv'] =
mcrypt_create_iv(mcrypt_get_iv_size(MCRYPT_RIJNDAE L_256,
MCRYPT_MODE_ECB), MCRYPT_DEV_URANDOM);

I am getting a warning
Warning: mcrypt_create_iv(): Cannot open source device in
C:\apache\htdocs\filename.php

any suggestion..

thanks

Hi FD,

It means that the function cannot open the device /dev/urandom, while
you are referring to that by using MCRYPT_DEV_URANDOM as the second
parameter (source). Since you're trying this on Windows you don't have a
/dev/urandom, so the only option is to use MCRYPT_RAND (rand() function)
as the second parameter.
HTH.

--
http://www.phpforums.nl

[FD]

FD wrote:

I am having a big problem with the following line... it runs very well
on linux but I don't get why it doesn't work on winxp
$_SESSION['_mcrypt_iv'] =
mcrypt_create_iv(mcrypt_get_iv_size(MCRYPT_RIJNDAE L_256,
MCRYPT_MODE_ECB), MCRYPT_DEV_URANDOM);

I am getting a warning
Warning: mcrypt_create_iv(): Cannot open source device in
C:\apache\htdocs\filename.php

any suggestion..

thanks

Well.. I've found the anwser myself... windows doesn't support
MCRYPT_DEV_URANDOM but MCRYPT_RANDOM
thanks anyway