INNER CODE UNIT · Go

NewEMACWithPadding

emmansun/gmsm · cbcmac/cbcmac.go:96

func NewEMACWithPadding(creator func(key []byte) (cipher.Block, error), key1, key2 []byte, size int, newPaddingFunc padding.NewPaddingFunc) BlockCipherMAC {
	var b1, b2 cipher.Block
	var err error
	if b1, err = creator(key1); err != nil {
		panic(err)
	}
	if size <= 0 || size > b1.BlockSize() {
		panic("cbcmac: invalid size")
	}
	if b2, err = creator(key2); err != nil {
		panic(err)
	}
	return &emac{pad: newPaddingFunc(uint(b1.BlockSize())), b1: b1, b2: b2, size: size}
}

// Size returns the MAC value's number of bytes.
// See [github.com/emmansun/gmsm/cbcmac.BlockCipherMAC.Size].
func (e *emac) Size() int {

View source record →