Python two_kdp Examples

Example #1

File: image_crypt.py Project: tor7/ImageEncryptor

def two_key_encryption(im_arr, x_size, y_size, k1, k2):
    size = x_size * y_size

    permut = utils.two_kdp(size, k1, k2)

    temp_hold = []

    for x in range(x_size):
        temp_hold.append([])
        for y in range(y_size):
            temp_hold[x].append(im_arr[x, y])

    for x in range(x_size):
        for y in range(y_size):
            p_index = permut[x * y_size + y]
            p_x_index = p_index / y_size
            p_y_index = p_index - (p_x_index * y_size)
            im_arr[x, y] = temp_hold[p_x_index][p_y_index]
    pass

Example #2

File: image_crypt.py Project: AtheMathmo/ImageEncryptor

def two_key_encryption(im_arr, x_size, y_size, k1, k2):
    size = x_size*y_size

    permut = utils.two_kdp(size, k1, k2)

    temp_hold = []

    for x in range(x_size):
        temp_hold.append([])
        for y in range(y_size):
            temp_hold[x].append(im_arr[x, y])

    for x in range(x_size):
        for y in range(y_size):
            p_index = permut[x*y_size + y]
            p_x_index = p_index / y_size
            p_y_index = p_index - (p_x_index * y_size)
            im_arr[x, y] = temp_hold[p_x_index][p_y_index]
    pass

Example #3

File: image_crypt.py Project: tor7/ImageEncryptor

def two_key_decryption(im_arr, x_size, y_size, k1, k2):
    size = x_size * y_size

    permut = utils.two_kdp(size, k1, k2)

    for p in permut:
        if type(p) is not int:
            print p
            assert False
    temp_hold = []

    for x in range(x_size):
        temp_hold.append([])
        for y in range(y_size):
            temp_hold[x].append(im_arr[x, y])

    for x in range(x_size):
        for y in range(y_size):
            p_index = permut[x * y_size + y]
            p_x_index = p_index / y_size
            p_y_index = p_index - (p_x_index * y_size)
            im_arr[p_x_index, p_y_index] = temp_hold[x][y]
    pass

Example #4

File: image_crypt.py Project: AtheMathmo/ImageEncryptor

def two_key_decryption(im_arr, x_size, y_size, k1, k2):
    size = x_size*y_size

    permut = utils.two_kdp(size, k1, k2)

    for p in permut:
        if type(p) is not int:
            print p
            assert False
    temp_hold = []

    for x in range(x_size):
        temp_hold.append([])
        for y in range(y_size):
            temp_hold[x].append(im_arr[x, y])

    for x in range(x_size):
        for y in range(y_size):
            p_index = permut[x*y_size + y]
            p_x_index = p_index / y_size
            p_y_index = p_index - (p_x_index * y_size)
            im_arr[p_x_index, p_y_index] = temp_hold[x][y]
    pass