hi

I encountered rijndael and its expanded key is byte swapped when compared to normal key , is it common or something custom made?

Have you actually READ THE FAQ? How about YOU follow it's directions and YOU do some basic research on the net BEFORE you post a question here. If you have done ANY research YOURSELF to find the answer to YOUR question, how would be know you have done so.

The Diety invented the internet and search engines so YOU could attempt to find the answers to questions you may have about just about anything.

Now YOU go make the effort FIRST and report back what YOU find.

Regards,

I thought Al Gore did that.