case crypto.SHA512_224:
		return Size224
	case crypto.SHA512_256:
		return Size256
	case crypto.SHA384:
		return Size384
	default:
		return Size
	}
}

func (d *digest) BlockSize() int { return BlockSize }

func (d *digest) Write(p []byte) (nn int, err error) {
	if d.function != crypto.SHA512_224 && d.function != crypto.SHA512_256 {
		boring.Unreachable()
	}
	nn = len(p)