PHP AES Encryption to Coldfusion

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July 17th, 2012, 03:10 AM

friendlylier

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PHP AES Encryption to Coldfusion

Hi, i have an AES Encrypted String from PHP

Code:

$data='sickstring';
$key = base64_decode('LP+Rc9e1q5ajWPD9djDkLQ==');
echo base64_encode(mcrypt_encrypt(MCRYPT_RIJNDAEL_128, $key, $maus, MCRYPT_MODE_ECB));

The Result is

E4Q6oR7XEyYtZAPSYjdXoQ== --> (sickstring)

I can decrypt this in php with

Code:

$key = base64_decode('LP+Rc9e1q5ajWPD9djDkLQ==');
$data = base64_decode('E4Q6oR7XEyYtZAPSYjdXoQ==');

echo mcrypt_decrypt(MCRYPT_RIJNDAEL_128, $key, $data, MCRYPT_MODE_ECB);

But i want to decrypt this Sring with Coldfusion.

Code:

<cfdump var="#decrypt("E4Q6oR7XEyYtZAPSYjdXoQ==", "LP+Rc9e1q5ajWPD9djDkLQ==", "AES", "Base64")#">>

But i got an error:

Code:

Given final block not properly padded

any help?

July 17th, 2012, 10:03 AM

kiteless

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Location: Raleigh, NC

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Seems like it's a mismatch between the encryption and decryption algorithm. About the only thing I can offer is to have a look at this and see if it covers your situation: http://stackoverflow.com/questions/...d-string-in-php

Or maybe this: http://stackoverflow.com/questions/...fferent-results.

I'd say the best way to test would be to create the CFML code that will create the same encrypted value, then you know you're on the right track and decrypting it should be straightforward.

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Last edited by kiteless : July 17th, 2012 at 10:05 AM.

July 18th, 2012, 02:19 AM

friendlylier

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many thankz.

....../questions/3196846/un-encrypting-re-encrypting-a-coldfusion-encrypted-string-in-php

will work

PHP Code:


		
			
 $pad = 16 - (StrLen($data) % 16);

if ($pad > 0) {

     $data .= Str_repeat(Chr($pad), $pad);

}

gotcha

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