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

// Package sha256 implements the SHA224 and SHA256 hash algorithms as defined
// in FIPS 180-4.
package sha256

import (
	"crypto"
	"crypto/internal/boring"
	"errors"
	"hash"
	"internal/byteorder"
)

func init() {
	crypto.RegisterHash(crypto.SHA224, New224)
	crypto.RegisterHash(crypto.SHA256, New)
}

// The size of a SHA256 checksum in bytes.

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") }
func SHA224([]byte) [28]byte { panic("boringcrypto: not available") }
func SHA256([]byte) [32]byte { panic("boringcrypto: not available") }
func SHA384([]byte) [48]byte { panic("boringcrypto: not available") }

	crypto.SHA1:      {0x30, 0x21, 0x30, 0x09, 0x06, 0x05, 0x2b, 0x0e, 0x03, 0x02, 0x1a, 0x05, 0x00, 0x04, 0x14},
	crypto.SHA224:    {0x30, 0x2d, 0x30, 0x0d, 0x06, 0x09, 0x60, 0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x04, 0x05, 0x00, 0x04, 0x1c},

		{"MD4", Const, 0},
		{"MD5", Const, 0},
		{"MD5SHA1", Const, 0},
		{"PrivateKey", Type, 0},
		{"PublicKey", Type, 2},
		{"RIPEMD160", Const, 0},
		{"RegisterHash", Func, 0},
		{"SHA1", Const, 0},
		{"SHA224", Const, 0},
		{"SHA256", Const, 0},
		{"SHA384", Const, 0},
		{"SHA3_224", Const, 4},
		{"SHA3_256", Const, 4},
		{"SHA3_384", Const, 4},
		{"SHA3_512", Const, 4},
		{"SHA512", Const, 0},