package set1

const HexRepresentations = "0123456789abcdef"

func XORHexString(content, password string) string {
	var hexValues = map[byte]byte{
		'0': 0,
		'1': 1,
		'2': 2,
		'3': 3,
		'4': 4,
		'5': 5,
		'6': 6,
		'7': 7,
		'8': 8,
		'9': 9,
		'a': 10,
		'b': 11,
		'c': 12,
		'd': 13,
		'e': 14,
		'f': 15,
	}

	contentBytes := []byte(content)
	passwordBytes := []byte(password)

	buffer := make([]byte, len(contentBytes), len(contentBytes))

	for i := 0; i < len(contentBytes); i++ {
		contentByte := hexValues[contentBytes[i]]
		passwordByte := hexValues[passwordBytes[i]]

		buffer[i] = HexRepresentations[contentByte^passwordByte]
	}

	return string(buffer)
}