some width w instead of // radix 16. This is like a binary representation (one digit // for each binary place) but we allow the digits to grow in // magnitude up to 2^{w-1} so that the nonzero digits are as // sparse as possible. Intuitively, this "condenses" the // "mass" of the scalar onto sparse coefficients (meaning // fewer additions). basepointNafTable := basepointNafTable() var aTable nafLookupTable5 aTable.FromP3(A) // Because the basepoint is fixed, we can use a wider NAF // corresponding to...