}
}

type p256Curve struct {
	nistCurve[*nistec.P256Point]
}

var p256 = &p256Curve{nistCurve[*nistec.P256Point]{
	newPoint: nistec.NewP256Point,
}}

func initP256() {
	p256.params = &CurveParams{
		Name:    "P-256",
		BitSize: 256,
		// FIPS 186-4, section D.1.2.3
		P:  bigFromDecimal("115792089210356248762697446949407573530086143415290314195533631308867097853951"),

		return
	}

	if !curve.IsOnCurve(x, y) {
		panic("crypto/elliptic: attempted operation on invalid point")
	}
}

var initonce sync.Once

func initAll() {
	initP224()
	initP256()
	initP384()
	initP521()
}

// P224 returns a [Curve] which implements NIST P-224 (FIPS 186-3, section D.2.2),
// also known as secp224r1. The CurveParams.Name of this [Curve] is "P-224".
//

	init5_224 = 0x77e36f7304c48942
	init6_224 = 0x3f9d85a86a1d36c8
	init7_224 = 0x1112e6ad91d692a1
	init0_256 = 0x22312194fc2bf72c
	init1_256 = 0x9f555fa3c84c64c2
	init2_256 = 0x2393b86b6f53b151
	init3_256 = 0x963877195940eabd
	init4_256 = 0x96283ee2a88effe3
	init5_256 = 0xbe5e1e2553863992
	init6_256 = 0x2b0199fc2c85b8aa
	init7_256 = 0x0eb72ddc81c52ca2
	init0_384 = 0xcbbb9d5dc1059ed8
	init1_384 = 0x629a292a367cd507