([CVE-2021-37643](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-37643))
*   Fixes an integer overflow due to conversion to unsigned
    ([CVE-2021-37645](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-37645))
*   Fixes a bad allocation error in `StringNGrams` caused by integer conversion
    ([CVE-2021-37646](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-37646))

1} one := Element{1, 0, 0, 0, 0} var xinv, r Element xinv.Invert(&x) r.Multiply(&x, &xinv) r.reduce() if one != r { t.Errorf("inversion identity failed, got: %x", r) } var bytes [32]byte _, err := io.ReadFull(rand.Reader, bytes[:]) if err != nil { t.Fatal(err) } x.SetBytes(bytes[:]) xinv.Invert(&x) r.Multiply(&x, &xinv) r.reduce() if one != r { t.Errorf("random inversion identity failed, got: %x for field element %x", r, x) } zero := Element{} x.Set(&zero) if xx := xinv.Invert(&x); xx != &xinv {...