On Thu, Oct 18, 2012 at 12:06 PM, Rick Dwyer <rpdwyer@xxxxxxxxxxxxx> wrote:
> Hello all.
>
> Has anyone ever tried to decode a JAVA AES/CBC encrypted string with PHP before?
>
> I found a tutorial online with the following code to use as starting point, but it fails to return anything readable:
>
> $code ='Hello World';
> $key = 'my key';
>
> function decrypt($code, $key) {
> $key = hex2bin($key);
> $code = hex2bin($code);
> $td = mcrypt_module_open("rijndael-128", "", "cbc", "");
> mcrypt_generic_init($td, $key, "fedcba9876543210");
> $decrypted = mdecrypt_generic($td, $code);
> mcrypt_generic_deinit($td);
> mcrypt_module_close($td);
> return utf8_encode(trim($decrypted));
> }
>
>
> function hex2bin($hexdata) {
> $bindata = "";
> for ($i = 0; $i < strlen($hexdata); $i += 2) {
> $bindata .= chr(hexdec(substr($hexdata, $i, 2)));
> }
> return $bindata;
> }
> echo decrypt($code, $key);
>
> The above returns output containing a series of unprintable characters.
>
> I thought maybe it was due to $code not being in a hex format, but after converting to hex and resubmitting, I still unprintable characters.
>
> Any info is appreciated.
Can you post the Java code you're using? There are things such as the
padding specification that could cause some issues.
Adam
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