@misc{cryptoeprint:2012:616, author = {Nishanth Chandran and Sanjam Garg}, title = {Hardness Preserving Constructions of Pseudorandom Functions, Revisited}, howpublished = {Cryptology ePrint Archive, Report 2012/616}, year = {2012}, url = {http://eprint.iacr.org/2012/616}, }