code is governed by a BSD-style // license that can be found in the LICENSE file. package aes import "testing" // See const.go for overview of math here. // Test that powx is initialized correctly. // (Can adapt this code to generate it too.) func TestPowx(t *testing.T) { p := 1 for i := 0; i < len(powx); i++ { if powx[i] != byte(p) { t.Errorf("powx[%d] = %#x, want %#x", i, powx[i], p) } p <<= 1 if p&0x100 != 0 { p ^= poly } } } // Multiply b and c as GF(2) polynomials modulo poly func mul(b, c uint32)...