Axel Poschmann San Ling Huaxiong Wang 256 Bit Standardized Crypto for 650 GE - GOST Revisited. 219-233 2010 CHES http://dx.doi.org/10.1007/978-3-642-15031-9_15 conf/ches/2010 db/conf/ches/ches2010.html#PoschmannLW10