}

func BenchmarkAESCFBDecrypt8K(b *testing.B) {
	benchmarkAESStream(b, cipher.NewCFBDecrypter, make([]byte, almost8K))
}

func BenchmarkAESOFB1K(b *testing.B) {
	benchmarkAESStream(b, cipher.NewOFB, make([]byte, almost1K))
}

func BenchmarkAESCTR1K(b *testing.B) {
	benchmarkAESStream(b, cipher.NewCTR, make([]byte, almost1K))
}

import (
	"crypto/internal/alias"
	"strconv"
)

// A Cipher is an instance of RC4 using a particular key.
type Cipher struct {
	s    [256]uint32
	i, j uint8
}

type KeySizeError int

func (k KeySizeError) Error() string {
	return "crypto/rc4: invalid key size " + strconv.Itoa(int(k))
}

// NewCipher creates and returns a new [Cipher]. The key argument should be the

)

var errOpen = errors.New("cipher: message authentication failed")

// Assert that aesCipherAsm implements the gcmAble interface.
var _ gcmAble = (*aesCipherAsm)(nil)

// NewGCM returns the AES cipher wrapped in Galois Counter Mode. This is only
// called by [crypto/cipher.NewGCM] via the gcmAble interface.
func (c *aesCipherAsm) NewGCM(nonceSize, tagSize int) (cipher.AEAD, error) {
	var hk gcmHashKey

	}

	if cipher, ok := cipher.(gcmAble); ok {
		return cipher.NewGCM(nonceSize, tagSize)
	}

	if cipher.BlockSize() != gcmBlockSize {
		return nil, errors.New("cipher: NewGCM requires 128-bit block cipher")
	}

	var key [gcmBlockSize]byte
	cipher.Encrypt(key[:], key[:])

        return new HMACT64(key);
    }


    /**
     * 
     * @param key
     * @return RC4 cipher
     */
    public static Cipher getArcfour ( byte[] key ) {
        try {
            Cipher c = Cipher.getInstance("RC4");
            c.init(Cipher.ENCRYPT_MODE, new SecretKeySpec(key, "RC4"));
            return c;
        }
        catch (
            NoSuchAlgorithmException |

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

// Counter (CTR) mode.

// CTR converts a block cipher into a stream cipher by
// repeatedly encrypting an incrementing counter and
// xoring the resulting stream of data with the input.

// See NIST SP 800-38A, pp 13-15

package cipher

import (
	"bytes"
	"crypto/internal/alias"
	"crypto/subtle"
)

type ctr struct {
	b       Block

func counterCryptASM(nr int, out, in []byte, counter *[gcmBlockSize]byte, key *uint32)

// NewGCM returns the AES cipher wrapped in Galois Counter Mode. This is only
// called by [crypto/cipher.NewGCM] via the gcmAble interface.
func (c *aesCipherAsm) NewGCM(nonceSize, tagSize int) (cipher.AEAD, error) {
	var h1, h2 uint64
	g := &gcmAsm{cipher: c, ks: c.enc[:c.l], nonceSize: nonceSize, tagSize: tagSize}

	hle := make([]byte, gcmBlockSize)

	for _, cipher := range tls.InsecureCipherSuites() {
		acceptedCiphers[cipher.Name] = cipher.ID
	}
	for _, cipher := range tls.CipherSuites() {
		acceptedCiphers[cipher.Name] = cipher.ID
	}
	return acceptedCiphers
}

// TLSCipherSuites returns a list of cipher suite IDs from the cipher suite names passed.
func TLSCipherSuites(cipherNames []string) ([]uint16, error) {

		tagSize := (len(test.result) - len(test.plaintext)) / 2

		var aesgcm cipher.AEAD
		switch {
		// Handle non-standard tag sizes
		case tagSize != 16:
			aesgcm, err = cipher.NewGCMWithTagSize(aes, tagSize)
			if err != nil {
				t.Fatal(err)
			}

		// Handle 0 nonce size (expect error and continue)
		case len(nonce) == 0:
			aesgcm, err = cipher.NewGCMWithNonceSize(aes, 0)
			if err == nil {

)

var errOpen = errors.New("cipher: message authentication failed")

// Assert that aesCipherGCM implements the gcmAble interface.
var _ gcmAble = (*aesCipherGCM)(nil)

// NewGCM returns the AES cipher wrapped in Galois Counter Mode. This is only
// called by [crypto/cipher.NewGCM] via the gcmAble interface.
func (c *aesCipherGCM) NewGCM(nonceSize, tagSize int) (cipher.AEAD, error) {