test multiplication by one
t { immutable block x0 = cast(immutable block) x"66e94bd4ef8a2c3b884cfa59ca342b2e"; block x1 = x0; block one; one[0] = ONE; multiply(x1, one); assert(x1 == x0, "GCM multiplication by ONE failed!")
test multiplication
t { immutable block H = cast(immutable block)x"66e94bd4ef8a2c3b884cfa59ca342b2e"; block x1 = cast(immutable block) x"0388dace60b6a392f328c2b971b2fe78"; multiply(x1, H); assert(x1 == x"5e2ec746917062882c85b0685353deb7", "GCM multiplication failed!")
Multiplies x by y using schoolbook multiplication. Result stored in x.