import (
	"hash"
)

// New224 creates a new SHA3-224 hash.
// Its generic security strength is 224 bits against preimage attacks,
// and 112 bits against collision attacks.
func New224() hash.Hash {
	return new224()
}

// New256 creates a new SHA3-256 hash.
// Its generic security strength is 256 bits against preimage attacks,
// and 128 bits against collision attacks.
func New256() hash.Hash {
	return new256()
}

// 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 new224() *state {
	return new224Generic()
}

func new256() *state {
	return new256Generic()
}

func new384() *state {
	return new384Generic()
}

func new512() *state {
	return new512Generic()

// license that can be found in the LICENSE file.

//go:build go1.4

package sha3

import (
	"crypto"
)

func init() {
	crypto.RegisterHash(crypto.SHA3_224, New224)
	crypto.RegisterHash(crypto.SHA3_256, New256)
	crypto.RegisterHash(crypto.SHA3_384, New384)
	crypto.RegisterHash(crypto.SHA3_512, New512)

func (s *asmState) Clone() ShakeHash {
	return s.clone()
}

// new224 returns an assembly implementation of SHA3-224 if available,
// otherwise it returns a generic implementation.
func new224() hash.Hash {
	if cpu.S390X.HasSHA3 {
		return newAsmState(sha3_224)
	}
	return new224Generic()
}

// new256 returns an assembly implementation of SHA3-256 if available,

	dkB := dk.dk[:0]

	for i := range s {
		dkB = polyByteEncode(dkB, s[i])
	}

	for i := range t {
		dkB = polyByteEncode(dkB, t[i])
	}
	dkB = append(dkB, ρ...)

	H := sha3.New256()
	H.Write(dkB[decryptionKeySize:])
	dkB = H.Sum(dkB)

	dkB = append(dkB, z[:]...)

	if len(dkB) != len(dk.dk) {
		panic("mlkem768: internal error: invalid decapsulation key size")
	}

	return dk

Roland Shoemaker <******@****.***> 1715710936 -0700

	"ECDHE-RSA-AES128-GCM-SHA256",
	"ECDHE-ECDSA-AES256-GCM-SHA384",
	"ECDHE-RSA-AES256-GCM-SHA384",
	"ECDHE-ECDSA-CHACHA20-POLY1305",
	"ECDHE-RSA-CHACHA20-POLY1305",
	"ECDHE-ECDSA-AES128-SHA",
	"ECDHE-RSA-AES128-SHA",
	"ECDHE-ECDSA-AES256-SHA",
	"ECDHE-RSA-AES256-SHA",
	"AES128-GCM-SHA256",
	"AES256-GCM-SHA384",
	"AES128-SHA",
	"AES256-SHA",
	"DES-CBC3-SHA",
)

	if len(b) == 0 {
		return b, kms.AES256
	}

	if b[0] == '{' && b[len(b)-1] == '}' { // JSON object
		var c ciphertext
		if err := c.UnmarshalJSON(b); err != nil {
			// It may happen that a random ciphertext starts with '{' and ends with '}'.
			// In such a case, parsing will fail but we must not return an error. Instead
			// we return the ciphertext as it is.
			return b, kms.AES256
		}

		b = b[:0]

// state of the hash.
func New() hash.Hash {
	if boring.Enabled {
		return boring.NewSHA256()
	}
	d := new(digest)
	d.Reset()
	return d
}

// New224 returns a new hash.Hash computing the SHA224 checksum.
func New224() hash.Hash {
	if boring.Enabled {
		return boring.NewSHA224()
	}
	d := new(digest)
	d.is224 = true
	d.Reset()
	return d
}

func (d *digest) Size() int {

Roland Shoemaker <******@****.***> 1715710936 -0700