INNER CODE UNIT · Go

NewANSIRetailMACWithPadding

emmansun/gmsm · cbcmac/cbcmac.go:142

func NewANSIRetailMACWithPadding(creator func(key []byte) (cipher.Block, error), key1, key2 []byte, size int, newPaddingFunc padding.NewPaddingFunc) BlockCipherMAC {
	return (*ansiRetailMAC)(NewEMACWithPadding(creator, key1, key2, size, newPaddingFunc).(*emac))
}

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

// MAC calculates the MAC of the given data.
// The data is padded with the padding scheme of the block cipher before processing.
// See [github.com/emmansun/gmsm/cbcmac.BlockCipherMAC.MAC].
func (e *ansiRetailMAC) MAC(src []byte) []byte {
	src = e.pad.Pad(src)
	blockSize := e.b1.BlockSize()
	tag := make([]byte, blockSize)
	for len(src) > 0 {

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