package set1

func XOREncryptText(plaintext string, key string) (cipher []byte) {

	cursor := 0

	nextKeyChar := func() (char byte) {
		char = key[cursor]
		cursor++

		if cursor >= len(key) {
			cursor = 0
		}

		return
	}

	cipher = make([]byte, len(plaintext), len(plaintext))

	for i := 0; i < len(plaintext); i++ {
		cipher[i] = plaintext[i] ^ nextKeyChar()
	}

	return
}

func ConvertToHex(bytes []byte) (hexBytes []byte) {
	for i := 0; i < len(bytes); i++ {
		hexBytes = append(hexBytes, HexRepresentations[bytes[i]>>4], HexRepresentations[0b00001111&bytes[i]])
	}

	return
}