go/src/crypto/cipher/cfb.go

type cfb …

func (x *cfb) XORKeyStream(dst, src []byte) { … }

// NewCFBEncrypter returns a [Stream] which encrypts with cipher feedback mode,
// using the given [Block]. The iv must be the same length as the [Block]'s block
// size.
func NewCFBEncrypter(block Block, iv []byte) Stream { … }

// NewCFBDecrypter returns a [Stream] which decrypts with cipher feedback mode,
// using the given [Block]. The iv must be the same length as the [Block]'s block
// size.
func NewCFBDecrypter(block Block, iv []byte) Stream { … }

func newCFB(block Block, iv []byte, decrypt bool) Stream { … }