func main() {
	input := "YELLOW SUBMARINE"
	result := conversion.PadPKCS([]byte(input), 20)

	fmt.Println("Input:", input)
	fmt.Println("Output:", string(result))
}
Ejemplo n.º 2
0
func (e *Block) EncryptCBC(input, iv []byte) ([]byte, error) {
	input = conversion.PadPKCS(input, e.BlockSize)

	length := len(input)
	ciphertext := make([]byte, length)

	if len(iv) != e.BlockSize {
		return ciphertext, IVSizeError
	}

	// Loop over each block
	for a, b := 0, e.BlockSize; b <= length; a, b = a+e.BlockSize, b+e.BlockSize {
		plainslice := input[a:b]

		cipherslice := make([]byte, e.BlockSize)
		cipherslice, err := e.EncryptCBCBlock(plainslice, iv)
		if err != nil {
			return ciphertext, err
		}

		copy(ciphertext[a:b], cipherslice)

		iv = cipherslice
	}

	return ciphertext, nil
}
Ejemplo n.º 3
0
func (e *Block) EncryptECB(input []byte) ([]byte, error) {
	input = conversion.PadPKCS(input, e.BlockSize)
	length := len(input)
	ciphertext := make([]byte, length)

	// Loop over each block
	for a, b := 0, e.BlockSize; b <= length; a, b = a+e.BlockSize, b+e.BlockSize {
		cipherslice := ciphertext[a:b]
		cipherslice, err := e.EncryptECBBlock(input[a:b])
		if err != nil {
			return ciphertext, err
		}

		copy(ciphertext[a:b], cipherslice)
	}

	return ciphertext, nil
}