big := C._goboringcrypto_BN_new()
	defer C._goboringcrypto_BN_free(big)
	if C._goboringcrypto_EC_POINT_get_affine_coordinates_GFp(group, pt, big, nil, nil) == 0 {
		return nil, fail("EC_POINT_get_affine_coordinates_GFp")
	}
	return bigBytesECDH(curve, big)
}

func bigBytesECDH(curve string, big *C.GO_BIGNUM) ([]byte, error) {
	out := make([]byte, curveSize(curve))

}

// UnmarshalText implements the [encoding.TextUnmarshaler] interface.
func (z *Int) UnmarshalText(text []byte) error {
	if _, ok := z.setFromScanner(bytes.NewReader(text), 0); !ok {
		return fmt.Errorf("math/big: cannot unmarshal %q into a *big.Int", text)
	}
	return nil
}

// The JSON marshalers are only here for API backward compatibility
// (programs that explicitly look for these two methods). JSON works

		h.WriteString(efk)
		h.Write(Separator)
	}
	h.Write(Separator)

	return h.Sum64()
}

func hashToBytes(number model.ConfigHash) []byte {
	big := new(big.Int)
	big.SetUint64(uint64(number))
	return big.Bytes()

//
// BoringCrypto is only available on linux/amd64 and linux/arm64 systems.
const Enabled = available

// A BigInt is the raw words from a BigInt.
// This definition allows us to avoid importing math/big.
// Conversion between BigInt and *big.Int is in crypto/internal/boring/bbig.

}

// AddUint32 appends a big-endian, 32-bit value to the byte string.
func (b *Builder) AddUint32(v uint32) {
	b.add(byte(v>>24), byte(v>>16), byte(v>>8), byte(v))
}

// AddUint48 appends a big-endian, 48-bit value to the byte string.
func (b *Builder) AddUint48(v uint64) {
	b.add(byte(v>>40), byte(v>>32), byte(v>>24), byte(v>>16), byte(v>>8), byte(v))
}

// AddUint64 appends a big-endian, 64-bit value to the byte string.

  // of small endian, as documented in the header). This will protentially break
  // when TFLite is ported to big endian platforms.
  // TODO(b/165919229): This code will need changing if/when we port to a
  // big-endian platform.
  memcpy(*buffer, &num_strings, sizeof(int32_t));

  // Set offset of strings.
  int32_t start = sizeof(int32_t) * (num_strings + 2);

func New64() hash.Hash64 {
	var s sum64 = offset64
	return &s
}

// New64a returns a new 64-bit FNV-1a [hash.Hash].
// Its Sum method will lay the value out in big-endian byte order.
func New64a() hash.Hash64 {
	var s sum64a = offset64
	return &s
}

// New128 returns a new 128-bit FNV-1 [hash.Hash].
// Its Sum method will lay the value out in big-endian byte order.

	return v
}

func (v *Element) fromDecimal(s string) *Element {
	n, ok := new(big.Int).SetString(s, 10)
	if !ok {
		panic("not a valid decimal: " + s)
	}
	return v.fromBig(n)
}

// toBig returns v as a big.Int.
func (v *Element) toBig() *big.Int {
	buf := v.Bytes()

	words := make([]big.Word, 32*8/bits.UintSize)
	for n := range words {
		for i := 0; i < bits.UintSize; i += 8 {

func (z *Rat) UnmarshalText(text []byte) error {
	// TODO(gri): get rid of the []byte/string conversion
	if _, ok := z.SetString(string(text)); !ok {
		return fmt.Errorf("math/big: cannot unmarshal %q into a *big.Rat", text)
	}
	return nil

func (curve *nistCurve[Point]) pointToAffine(p Point) (x, y *big.Int, err error) {
	out := p.Bytes()
	if len(out) == 1 && out[0] == 0 {
		// This is the encoding of the point at infinity.
		return nil, nil, errors.New("ecdsa: public key point is the infinity")
	}
	byteLen := (curve.curve.Params().BitSize + 7) / 8
	x = new(big.Int).SetBytes(out[1 : 1+byteLen])
	y = new(big.Int).SetBytes(out[1+byteLen:])
	return x, y, nil
}