Comments on: AES Interop Between PHP and Java (Part 2)

By: Shane

Shane — Wed, 01 Jul 2009 06:18:43 +0000

First of all, I’d like to saya BIG THANK YOU for this blog! You saved me a lot of time and effort!!!

I did face a little trouble compiling the php code you provided though. The error involved something to do with an incorrect IV size. So, i replaced the IV with “” and then added an extra line. It works well like this:

$td = mcrypt_module_open(”rijndael-128″, “”, “cbc”, “”);
mcrypt_generic_init($td, $key, $iv);

Hope this will helpful to someone. Thanks again!!!

By: linus

linus — Fri, 22 May 2009 03:33:06 +0000

Hi ndeh,

I have never tried OFB. As I am not really an expert in encryption. I will try to understand more.

By: ndeh

ndeh — Tue, 28 Apr 2009 19:24:17 +0000

MCRYPT CBC Interoperability seems fine.
But MCRYPT OFB Does not match !!! with others implementations.
What is wrong with OFB ?

By: shimul

shimul — Thu, 26 Feb 2009 11:04:54 +0000

great tutorial

thanks

By: runsvalid

runsvalid — Tue, 17 Feb 2009 17:04:14 +0000

thanks for this! my php host doesn’t have mcrypt installed, unfortunately, so i went around looking for libraries that didn’t require it.

there’s http://www.phpaes.com/ as mentioned above but that’s not free. here’s one that is:

http://phpseclib.sourceforge.net/documentation/crypt.html#crypt_aes_benchmarks

LGPL licensed and 11x faster than the one at http://www.phpaes.com/. uses mcrypt if available, php otherwise.

By: Daniel Craig

Daniel Craig — Thu, 24 Jul 2008 16:00:20 +0000

Hi there, I was looking around for a while searching for aes encryption and I happened upon this site and your post regarding AES Interop Between PHP and Java (Part 2), I will definitely this to my aes encryption bookmarks!

By: Fun Things in Life » Blog Archive » AES Interop Between PHP and Java (Part 3)

Sat, 06 Oct 2007 11:11:22 +0000

[…] Things in Life What’s Life without Fun? « AES Interop Between PHP and Java (Part 2) AES Interop Between PHP and Java (Part 4) […]

By: linus

linus — Sat, 06 Oct 2007 10:54:56 +0000

Hi Audrey,

Thanks for informing me, I will update the php.net soon.

By: Audrey

Audrey — Tue, 25 Sep 2007 23:48:40 +0000

Thank you for these examples. Wanted to let you know that the links from php.net/mcrypt do not work anymore.

Part 1 - Encrypt Using PHP / Decrypt Using Java
http://www.propaso.com/blog/2007/01/27/aes-interop-between-php-and-java/

Part 2 - Encrypt Using Java / Decrypt Using PHP
http://www.propaso.com/blog/2007/03/12/aes-interop-between-php-and-java
-part-2-working-the-other-way-around/

By: Heiner

Heiner — Wed, 18 Jul 2007 14:10:16 +0000

OK, when I compile the source from PART 1 and try to run it my java console throws this errors:

java.lang.ClassCastException: tester cannot be cast to java.applet.Applet
at sun.applet.AppletPanel.createApplet(Unknown Source)
at sun.plugin.AppletViewer.createApplet(Unknown Source)
at sun.applet.AppletPanel.runLoader(Unknown Source)
at sun.applet.AppletPanel.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
java.lang.ClassCastException: tester cannot be cast to java.applet.Applet
at sun.applet.AppletPanel.createApplet(Unknown Source)
at sun.plugin.AppletViewer.createApplet(Unknown Source)
at sun.applet.AppletPanel.runLoader(Unknown Source)
at sun.applet.AppletPanel.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)

What did I do wrong?
The HelloWorld example from the posted website from linus did work fine…