Mcrypt Functions
Here is a post similar to the one above, except this works for AES256
256 bit key and 128 bit block size... just make sure the $key variable is at least 48 characters long
---- PERL ---
my $key = '12345678901234567890123456789012345678901234567890';
my $CC = '4007000000027';
# You need Crypt::Rijndael installed for this to work
use Crypt::CBC;
my $cipher = Crypt::CBC->new( {'key' => substr($key,0,32),
'cipher'=> 'Rijndael',
'iv' => substr($key,32,16),
'regenerate_key' => 0,
'padding' => 'null',
'prepend_iv' => 0
});
my $encrypted = $cipher->encrypt($CC);
print "encrypted : ".$encrypted."\n";
print "decrypted : ".$cipher->decrypt($encrypted)."\n";
--- PHP ---
$key = '123456789012345678901234567890123456789012345678901234567890';
$CC = '4007000000027';
$encrypted = mcrypt_cbc(MCRYPT_RIJNDAEL_128,substr($key,0,32) ,$CC,MCRYPT_ENCRYPT,substr($key,32,16));
$decrypted = mcrypt_cbc(MCRYPT_RIJNDAEL_128,substr($key,0,32) ,$encrypted,MCRYPT_DECRYPT,substr($key,32,16));
echo "encrypted : ".bin2hex($encrypted);
mcrypt_cbc
(PHP 4, PHP 5)
mcrypt_cbc — Encripta/desencripta datos en modo CBC
Descripción
int mcrypt_cbc
( int $cipher
, string $key
, string $data
, int $mode
[, string $iv
] )
mcrypt_cbc() encripta o desencripta (dependiendo de mode ) los datos data con el cifrado cipher y la clave key en el modo de cifrado CBC y devuelve la cadena resultante.
El parámetro cipher es una de las constantes con nombre MCRYPT_nombrecifrado.
key es la clave suministrada al algoritmo. Debe guardarse en secreto.
data son los datos que serán encriptados/desencriptados.
mode es MCRYPT_ENCRYPT o MCRYPT_DECRYPT.
iv es el vector de inicialización opcional.
Ver también: mcrypt_cfb(), mcrypt_ecb(), mcrypt_ofb()
add a note
User Contributed Notesmcrypt_cbc
28-Apr-2006 08:44
eric at ez-llc dot com
11-Mar-2006 09:38
11-Mar-2006 09:38
I was able get php and perl to play together with blowfish using cipher block chaining. The blowfish key needs to be atleast 8 chars (even though blowfish min is 8 bits, perl didn't like keys smaller than 8 chars) and max 56. The iv must be exactly 8 chars and padding needs to be null because php pads with nulls. Also, php needs libmcrypt >= 2.4.9 to be compatible with perl.
PERL
----
use Crypt::CBC;
$cipher = Crypt::CBC->new( {'key' => 'my secret key',
'cipher'=> 'Blowfish',
'iv' => '12345678',
'regenerate_key' => 0,
'padding' => 'null',
'prepend_iv' => 0
});
$cc = 'my secret text';
$encrypted = $cipher->encrypt($cc);
$decrypted = $cipher->decrypt($encrypted);
print "encrypted : ".$encrypted;
print "<br>";
print "decrypted : ".$decrypted;
PHP
---
$cc = 'my secret text';
$encrypted = mcrypt_cbc(MCRYPT_BLOWFISH,'my secret key',$cc,MCRYPT_ENCRYPT,'12345678');
$decrypted = mcrypt_cbc(MCRYPT_BLOWFISH, 'my secret key', $encrypted, MCRYPT_DECRYPT,'12345678');
echo "encrypted : ".$encrypted;
echo "<br>";
echo "decrypted : ".$decrypted;