Iftach Haitner Omer Horvitz Jonathan Katz Chiu-Yuen Koo Ruggero Morselli Ronen Shaltiel Reducing Complexity Assumptions for Statistically-Hiding Commitment. 283-310 2009 22 J. Cryptology 3 http://dx.doi.org/10.1007/s00145-007-9012-8 db/journals/joc/joc22.html#HaitnerHKKMS09