Re: /dev/random and mcrypt
| From: | Sascha Schumann | Date: | Tue, 25 Jul 2000 22:17:10 +0000 |
| Subject: | Re: /dev/random and mcrypt | ||
| References: | 1 | Groups: | php.dev |
| Request: | Send a blank email to php-dev+get-26118@lists.php.net to get a copy of this message | ||
On Wed, 26 Jul 2000, Derick Rethans wrote:
> Hello,
>
> I encoutered some strange problem I though. Sascha's mcrypt_create_iv
> code read from /dev/random the requested nr of bytes for the IV, but
> sometimes only 2 bytes could be read, and so the function returned an IV
> of 2 (and not the requested length). I suspect this has something to do
> that /dev/random didn't have enough bytes ready. Can somebody verify
> that this could be possible?
Fixed in CVS. We repeat the read call until the buffer is filled.
- Sascha