-fixing paillier bug, improving testcase

git-svn-id: https://gnunet.org/svn/gnunet@34514 140774ce-b5e7-0310-ab8b-a85725594a96
add paillier benchmark

git-svn-id: https://gnunet.org/svn/gnunet@34515 140774ce-b5e7-0310-ab8b-a85725594a96
add paillier benchmark

git-svn-id: https://gnunet.org/svn/gnunet@34516 140774ce-b5e7-0310-ab8b-a85725594a96
-bad file

git-svn-id: https://gnunet.org/svn/gnunet@34517 140774ce-b5e7-0310-ab8b-a85725594a96
-handle negative results correctly

git-svn-id: https://gnunet.org/svn/gnunet@34518 140774ce-b5e7-0310-ab8b-a85725594a96