@article{2007-koblitz-provable ,note={Note: see also older version $0} ,author={Neal Koblitz and Alfred J. Menezes} ,ISSN={0933--2790 and 0933--2790} ,journal={Journal of Cryptology} ,pages={3--37} ,title={{Another look at ``provable security''}} ,volume={20} ,year={2007} }