Re: libmcrypt usage

[Nathan Rixham <nrixham@xxxxxxxxx>]

Gary wrote:
> Can anyone tell me what the equivalent to the following command line
> usage of openssl is, in php using the mcrypt_* functions, please:
> ,----
> | openssl enc -e -aes-256-cbc -k <some key> ...
> `----
>
> TIA.
>
> I tried
> ,----
> |         $iv = mcrypt_create_iv(mcrypt_get_block_size(MCRYPT_RIJNDAEL_256,
> |                                                      MCRYPT_MODE_CBC),
> |                                MCRYPT_DEV_RANDOM);
> |         $encryptedData = mcrypt_cbc(MCRYPT_RIJNDAEL_256
> |                                     ,$passphrase
> |                                     ,$data
> |                                     ,MCRYPT_ENCRYPT
> |                                     ,$iv);
> `----

use MCRYPT_RIJNDAEL_128
use an iv that's 32 bytes long (not 16)

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