5) f:{a,1}1000{0,}256 wole res. a) g:{0,1}1000{0,1}128 for eary xg(x) firt nuis f(x) ). wt it into 2 sithgs and throw away the loss haff, le, g(x) outputs the first hal of f(x) World of be coltisim resistant? b) h:{0,1}20{0,11312 be collisis for evy 2000 bt hat xi=x1x2h(x)=h(x1x2)=f(x1)f(x2)