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I'm trying to set up password salting on our website, and found the PBKDF2 functions at https://defuse.ca/php-pbkdf2.htm
When I try it, I get:

Fatal error: mcrypt_create_iv(): Could not gather sufficient random data in include\PBKDF2.php on line 23

I'm not sure if I need to do anything to make this work. It's running on IIS7.5

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2 回答 2

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For those who are still facing error:

Fatal Error: Call to undefined function mcrypt_create_iv()

Please check the phpversion and correspondingly make sure to go to php.ini file and add the line or uncomment:

extension=php_mcrypt.dll

I was able to get solution from here http://tech.domainstack.in/how-to-enable-mcrypt-on-the-server/

于 2016-10-07T18:31:25.563 回答
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I was using PHP 5.3.6, which apparently has a bug with mcrypt_create_iv().
Switched to the latest version 5.4.7 and it started working.

于 2012-09-26T13:29:41.927 回答