mycrypt_encrypt/_decrypt

tanita

Hi,

I try another thing. I wont to encrypt 'TestText' and the result decrypt again.

I orientated myself by php.net like this:

// verschluesseln
$iv = mcrypt_create_iv (mcrypt_get_iv_size (MCRYPT_RIJNDAEL_256, MCRYPT_MODE_EC😎, MCRYPT_RAND);
$key = "bla";
$text = "TestText";
echo "\$text -> $text \n";
echo "strlen:" .strlen ($text)."\n";
$crypttext = mcrypt_encrypt (MCRYPT_RIJNDAEL_256, $key, $text, MCRYPT_MODE_ECB, $iv);
echo "verkrüppelt: $crypttextLänge:" .strlen ($crypttext)."\n";

I thought I could easy decrypt again like this:

// entschluesseln
$decrypttext = mcrypt_encrypt (MCRYPT_RIJNDAEL_256, $key, $crypttext, MCRYPT_MODE_ECB, $iv);
echo "entkrüppelt: $decrypttext Länge:" .strlen ($decrypttext)."\n";

output:

$text -> TestText

strlen:8

verkrüppelt: â3žwîiÛÝþ÷UP–ðÝO–rœu\€ž]Zùã¶

Länge:32

entkrüppelt: ™ÖíÆMÎ2§ž eŒ <›õöØr=“šUï™ÒÖ

Länge:32

Any ideas how this decryption works...?

Thanks,

Tanja

tanita

oh @!#$, please blame me -I saw by my self...

Tanja

marcel

did you solve the cookie problem ?

tanita

its risque! The more I think about and try around - hen and egg problem! Anyway, I learnd out of it..

In our company we have security agreements, so I'm looking for an other solution. When Im ready, I have to document what I have done. I'm quite in hurry today and writing engish is not that easy for me (german, I'm sure you notice because of my english 🙂 ). But if you want me to, I could inform what I have done and a little surrounding what I intended to do..?

Tanja