func (b *aesCipherAsm) NewCBCEncrypter(iv []byte) cipher.BlockMode {
	var c cbc
	c.b = b
	c.enc = cbcEncrypt
	copy(c.iv[:], iv)
	return &c
}

func (b *aesCipherAsm) NewCBCDecrypter(iv []byte) cipher.BlockMode {
	var c cbc
	c.b = b
	c.enc = cbcDecrypt
	copy(c.iv[:], iv)
	return &c
}

func (x *cbc) BlockSize() int { return BlockSize }

// cryptBlocksChain invokes the cipher message identifying encrypt or decrypt.
//

	cipherKeys := sets.New[string]()
	for _, cipher := range tls.InsecureCipherSuites() {
		cipherKeys.Insert(cipher.Name)
	}
	return sets.SortedList(cipherKeys)
}

// secureTLSCipherNames returns a list of secure cipher suite names implemented by crypto/tls.
func secureTLSCipherNames() []string {
	cipherKeys := sets.New[string]()
	for _, cipher := range tls.CipherSuites() {
		cipherKeys.Insert(cipher.Name)
	}

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

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)

)

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) {

	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) {

//go:build !purego

package aes

import (
	"crypto/cipher"
	"crypto/internal/alias"
	"internal/cpu"
)

type code int

// Function codes for the cipher message family of instructions.
const (
	aes128 code = 18
	aes192      = 19
	aes256      = 20
)

type aesCipherAsm struct {
	function code     // code for cipher message instruction
	key      []byte   // key (128, 192 or 256 bits)

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

// CFB (Cipher Feedback) Mode.

package cipher

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

type cfb struct {
	b       Block
	next    []byte
	out     []byte
	outUsed int

	decrypt bool
}

func (x *cfb) XORKeyStream(dst, src []byte) {
	if len(dst) < len(src) {
		panic("crypto/cipher: output smaller than input")
	}

    }

    /**
     * Combines an algorithm and a key, and allows obtaining encryption/decryption ciphers according to those.
     */
    interface Session {
        SecretKey getKey();
        EncryptionAlgorithm getAlgorithm();
        Cipher encryptingCipher(IVCollector collector);
        Cipher decryptingCipher(IVLoader loader);
    }

    class EncryptionException extends RuntimeException {

// random nonces.
func NewGCMTransformer(block cipher.Block) (value.Transformer, error) {
	aead, err := newGCM(block)
	if err != nil {
		return nil, err
	}

	return &gcm{aead: aead, nonceFunc: randomNonce}, nil
}

func newGCM(block cipher.Block) (cipher.AEAD, error) {
	aead, err := cipher.NewGCM(block)
	if err != nil {
		return nil, err
	}