@misc{cryptoeprint:2012:227, author = {Ding Wang and Chun-guang Ma and Peng Wu}, title = {Secure password-based remote user authentication scheme with non-tamper resistant smart cards}, howpublished = {Cryptology ePrint Archive, Report 2012/227}, year = {2012}, url = {http://eprint.iacr.org/2012/227}, }