This is more of a research question.
I was wondering what types of crypto algorithms would work best on a small 4-8 bit micro controller. I recently read a paper called Security Considerations for 802.15.4 Networks and was wondering if anyone out there can think of any other papers or has knowledge about what types of things to consider when implementing cryptography on a low-power, low-memory system.
I read a 20052009 ieee paper on implementing RFID on a 4-bit micro controller, but I am looking for papers that will generally apply towards 802.11 or 802.15 standards. I will propablly be trying to hook a bunch of these controllers together, so I am looking for more of asymmetric encryption.