Iftach Haitner Omer Horvitz Jonathan Katz Chiu-Yuen Koo Ruggero Morselli Ronen Shaltiel Reducing Complexity Assumptions for Statistically-Hiding Commitment. 58-77 2005 conf/eurocrypt/2005 EUROCRYPT http://dx.doi.org/10.1007/11426639_4 db/conf/eurocrypt/eurocrypt2005.html#HaitnerHKKMS05