The weaknesses presented in 2012/115 are already known and fixed.
This is the author of  referenced in your recent ePrint article 2012/115. Thanks for your interest in our work.
In our presentation back in INFOCOM 2010,
we have already emphasized the issues
and presented a secure version.
Please see the full version of our paper at 2009/579
and the journal version to appear at IEEE Trans. on Computers
which can be found at
Edited 1 time(s). Last edit at 10-Mar-2012 18:01 by cwang.