go/src/crypto/aes/cipher.go

const BlockSize …

type aesCipher …

type KeySizeError …

func (k KeySizeError) Error() string { … }

// NewCipher creates and returns a new [cipher.Block].
// The key argument should be the AES key,
// either 16, 24, or 32 bytes to select
// AES-128, AES-192, or AES-256.
func NewCipher(key []byte) (cipher.Block, error) { … }

// newCipherGeneric creates and returns a new cipher.Block
// implemented in pure Go.
func newCipherGeneric(key []byte) (cipher.Block, error) { … }

func (c *aesCipher) BlockSize() int { … }

func (c *aesCipher) Encrypt(dst, src []byte) { … }

func (c *aesCipher) Decrypt(dst, src []byte) { … }