// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

//go:build !gc || purego || !s390x

package sha3

func newShake128() *state {
	return newShake128Generic()
}

func newShake256() *state {
	return newShake256Generic()

// Its generic security strength is 256 bits against all attacks if
// at least 64 bytes of its output are used.
func NewShake256() ShakeHash {
	return newShake256()
}

func newShake128Generic() *state {
	return &state{rate: rate128, outputLen: 32, dsbyte: dsbyteShake}
}

func newShake256Generic() *state {
	return &state{rate: rate256, outputLen: 64, dsbyte: dsbyteShake}
}

// otherwise it returns a generic implementation.
func newShake128() ShakeHash {
	if cpu.S390X.HasSHA3 {
		return newAsmState(shake_128)
	}
	return newShake128Generic()
}

// newShake256 returns an assembly implementation of SHAKE-256 if available,
// otherwise it returns a generic implementation.
func newShake256() ShakeHash {
	if cpu.S390X.HasSHA3 {