avoid an allocation. buf := make([]byte, d.n, rateK256) klmd(d.function(), &d.a, out, buf) } else { // We have "buffered" output still to copy. if d.n < d.rate { x := copy(out, d.a[d.n:d.rate]) d.n += x out = out[x:] } if len(out) == 0 { return } klmd(d.function()|nopad, &d.a, out, nil) } if len(out)%d.rate == 0 { // The final permutation was not performed, // so there is no "buffered" output. d.n = d.rate } else { d.n = len(out) % d.rate } return } func (d *Digest) function() code { switch d.rate...