case elliptic.P224().Params():
		return generateNISTEC(p224(), rand)
	case elliptic.P256().Params():
		return generateNISTEC(p256(), rand)
	case elliptic.P384().Params():
		return generateNISTEC(p384(), rand)
	case elliptic.P521().Params():
		return generateNISTEC(p521(), rand)
	default:
		return generateLegacy(c, rand)
	}
}