func NewSHA1() hash.Hash   { panic("boringcrypto: not available") }
func NewSHA224() hash.Hash { panic("boringcrypto: not available") }
func NewSHA256() hash.Hash { panic("boringcrypto: not available") }
func NewSHA384() hash.Hash { panic("boringcrypto: not available") }
func NewSHA512() hash.Hash { panic("boringcrypto: not available") }

func SHA1([]byte) [20]byte   { panic("boringcrypto: not available") }

	d := &digest{function: crypto.SHA512_256}
	d.Reset()
	return d
}

// New384 returns a new hash.Hash computing the SHA-384 checksum.
func New384() hash.Hash {
	if boring.Enabled {
		return boring.NewSHA384()
	}
	d := &digest{function: crypto.SHA384}
	d.Reset()
	return d
}

func (d *digest) Size() int {
	switch d.function {
	case crypto.SHA512_224:
		return Size224
	case crypto.SHA512_256: