Hill_cipher

tekst_jawny = "Najlepsze kasztany rosna na placu pigale latem"
# key = "okon"


def create_key_matrix(tekst_jawny):
    key = tekst_jawny[0:4].lower()
    alphabet = "abcdefghijklmnopqrstuvwxyz"
    rows, cols = len(key) / 2, len(key) / 2
    index = 0
    matrix_key = [[0 for _ in range(int(cols))] for _ in range(int(rows))]
    for i in range(int(rows)):
        for j in range(int(cols)):
            matrix_key[i][j] = alphabet.index(key[index])
            index += 1
    return matrix_key


def create_cipher_matrix(tekst_jawny):
    matrix = create_key_matrix(tekst_jawny)
    alphabet = "abcdefghijklmnopqrstuvwxyz"
    encrypted_tekst = ""
    tekst_jawny = tekst_jawny.replace(" ", "").lower()
    index = 0
    print(len(tekst_jawny))
    while index + 1 < len(tekst_jawny):
        j = 0
        for row in range(2):
            print(row)
            a = alphabet.index(tekst_jawny[index])
            b = alphabet.index(tekst_jawny[index + 1])
            value = ((matrix[row][j] * a) + (matrix[row][j + 1] * b)) % 26
            print(
                f"{matrix[row][j]} * {a} + {matrix[row][j+1]} * {b} % 26 = {value} litera a = {tekst_jawny[index]} litera b = {tekst_jawny[index+1]}"
            )
            encrypted_tekst += alphabet[value]
        index += 2

    return encrypted_tekst


matrix_text = create_matrix(tekst_jawny)
print(matrix_text)