//
// If x == 0, Invert returns e = 0.
func (e *P256Element) Invert(x *P256Element) *P256Element {
	// Inversion is implemented as exponentiation with exponent p − 2.
	// The sequence of 12 multiplications and 255 squarings is derived from the
	// following addition chain generated with github.com/mmcloughlin/addchain v0.4.0.
	//
	//	_10     = 2*1
	//	_11     = 1 + _10
	//	_110    = 2*_11
	//	_111    = 1 + _110

 * @author Austin Appleby
 */
@GwtCompatible
@ElementTypesAreNonnullByDefault
final class Hashing {
  private Hashing() {}

  /*
   * These should be ints, but we need to use longs to force GWT to do the multiplications with
   * enough precision.
   */
  private static final long C1 = 0xcc9e2d51;
  private static final long C2 = 0x1b873593;

  /*

//
// If x == 0, Invert returns e = 0.
func (e *P521Element) Invert(x *P521Element) *P521Element {
	// Inversion is implemented as exponentiation with exponent p − 2.
	// The sequence of 13 multiplications and 520 squarings is derived from the
	// following addition chain generated with github.com/mmcloughlin/addchain v0.4.0.
	//
	//	_10       = 2*1
	//	_11       = 1 + _10
	//	_1100     = _11 << 2

//
// If x == 0, Invert returns e = 0.
func (e *P224Element) Invert(x *P224Element) *P224Element {
	// Inversion is implemented as exponentiation with exponent p − 2.
	// The sequence of 11 multiplications and 223 squarings is derived from the
	// following addition chain generated with github.com/mmcloughlin/addchain v0.4.0.
	//
	//	_10     = 2*1
	//	_11     = 1 + _10
	//	_110    = 2*_11
	//	_111    = 1 + _110

//
// If x == 0, Invert returns e = 0.
func (e *P384Element) Invert(x *P384Element) *P384Element {
	// Inversion is implemented as exponentiation with exponent p − 2.
	// The sequence of 15 multiplications and 383 squarings is derived from the
	// following addition chain generated with github.com/mmcloughlin/addchain v0.4.0.
	//
	//	_10     = 2*1
	//	_11     = 1 + _10
	//	_110    = 2*_11
	//	_111    = 1 + _110

 * @author Austin Appleby
 */
@GwtCompatible
@ElementTypesAreNonnullByDefault
final class Hashing {
  private Hashing() {}

  /*
   * These should be ints, but we need to use longs to force GWT to do the multiplications with
   * enough precision.
   */
  private static final long C1 = 0xcc9e2d51;
  private static final long C2 = 0x1b873593;

  /*

}

// A right-leaning tree of byte multiplications.
func righttree(a, b, c, d uint8) uint8 {
	return a * (b * (c * (d *
		(a * (b * (c * (d *
			(a * (b * (c * (d *
				(a * (b * (c * (d *
					(a * (b * (c * (d *
						a * (b * (c * d)))))))))))))))))))))

}

// A left-leaning tree of byte multiplications.
func lefttree(a, b, c, d uint8) uint8 {

			} else {
				p224GG[i].Square(&p224GG[i-1])
			}
		}
	})

	// r <- x^((q+1)/2) = x^(2^127)
	// v <- x^q = x^(2^128-1)

	// Compute x^(2^127-1) first.
	//
	// The sequence of 10 multiplications and 126 squarings is derived from the
	// following addition chain generated with github.com/mmcloughlin/addchain v0.4.0.
	//
	//	_10      = 2*1
	//	_11      = 1 + _10
	//	_110     = 2*_11
	//	_111     = 1 + _110

//
// If x == 0, Invert returns e = 0.
func (e *Element) Invert(x *Element) *Element {
	// Inversion is implemented as exponentiation with exponent p − 2.
	// The sequence of {{ .Ops.Adds }} multiplications and {{ .Ops.Doubles }} squarings is derived from the
	// following addition chain generated with {{ .Meta.Module }} {{ .Meta.ReleaseTag }}.
	//
	{{- range lines (format .Script) }}
	//	{{ . }}
	{{- end }}
	//