My decrypt is below:
$myval=$_GET["myval"];
// let the encryption begin
define('SALT', 'myvalueforsalthere');
function decrypt($text)
{
return trim(mcrypt_decrypt(MCRYPT_RIJNDAEL_256, SALT,
base64_decode($text), MCRYPT_MODE_ECB,
mcrypt_create_iv(mcrypt_get_iv_size(MCRYPT_RIJNDAEL_256,
MCRYPT_MODE_ECB), MCRYPT_RAND)));
}
echo decrypt($myval);
--Rick
On Nov 30, 2011, at 4:14 PM, Adam Richardson wrote:
On Wed, Nov 30, 2011 at 3:57 PM, Rick Dwyer <rpdwyer@xxxxxxxxxxxxx>
wrote:
Hello all.
I am using the following function to encrypt a string:
define('SALT', 'myvalueforsalthere');
function encrypt($text)
{
return trim(base64_encode(mcrypt_**encrypt(MCRYPT_RIJNDAEL_256,
SALT,
$text, MCRYPT_MODE_ECB,
mcrypt_create_iv(mcrypt_get_**iv_size(MCRYPT_RIJNDAEL_256,
MCRYPT_MODE_ECB), MCRYPT_RAND))));
}
and then:
$myval="hello";
$mayval= encrypt($myval);
echo decrypt($myval);
returns "hello".... great.
But when my input string is more complicated I get unprintable
characters
out of the decyrpt side:
$myval="var1=1&var2=2&var3=3";
The above when decrypted will spit out a string of unprintable
characters.
Is encrypt/decrypt choking on the "=" sign? I tried:
$myval=htmlentities($myval);
But it did not work. Any help is appreciated.
Thanks,
--Rick
Hi Rick,
Can you show us the decrypt function, too (even though it should be
just
the reverse order of operations using a decrypt function, I'd just
like to
double check it before commenting.) By the way, I wouldn't recommend
using
ECB mode unless you have a special circumstance:
http://www.quora.com/Is-AES-ECB-mode-useful-for-anything
Adam
(Sorry for the duplicate, Rick, I forgot to reply all the first time.)
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