AASP protocol for embedded systems

I would like an implementation of AASP Security Protocol in Contiki. Contiki applications are written in standard C and uses the Cooja simulator. The protocol (described in the attached file) will be implemented having a hash function of 16,32 and 64 bytes. The communication protocol used is 6lowpan and is already implemented and available. I would like to see how the characteristics of the sky motes used in a simple network change, as the hash value changes. P.S. my budget is not very high. Thank you.