p.StartInfo.Arguments = imgExtractMsg.py + imgPath; start the python program with two parameters
p.Start; start the process the python program StreamReader s = p.StandardOutput;
String output = s.ReadToEnd; string[] r = output.Splitnew char[] { }; get the parameter
string q = r[0]; string[] words = q.Split.;
chipdek.Text = words[0]; akhir = DateTime.Now;
total = akhir - awal; waktupenyisipan = Convert.ToInt32total.TotalMilliseconds;
MessageBox.ShowPesan berhasil diekstrak, Informasi, MessageBoxButtons.OK, MessageBoxIcon.Information;
MessageBox.ShowWaktu ekstrsi adalah: + waktupenyisipan + ms.;
p.Close; }
private void button1_Click_1object sender, EventArgs e {
ekskey.Text = ; plainText.Text = ;
intkey.Text = ; cipherText.Text = ;
pictureBox1.Image = null; pictureBox2.Image = null;
} private void label7_Clickobject sender, EventArgs e
{ }
private void button2_Click_1object sender, EventArgs e {
eksdek.Text = ; chipdek.Text = ;
plaindek.Text = ; intdek.Text = ;
pictureBox4.Image = null; }
} }
2. Function.py
import binascii import Image
def ascii_to_bitmessage: return binintbinascii.hexlifymessage, 16.replaceb,
.rjust8,0 def bit_to_asciibit:
ascii = ; for i in range0, lenbit, 8:
n = intbit[i:i+8], 2 ascii += binascii.unhexlifyx n
return ascii
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def divide_sidemessage_bit: i = 0
left = right =
half_size = lenmessage_bit2; while i half_size:
left = left + message_bit[i]; right = right + message_bit[i+half_size];
i+=1 return left,right
def get_key_plus_bitkey_bit: pc_1 = [57, 49, 41, 33, 25, 17, 9, 1, 58, 50, 42, 34, 26, 18, 10, 2, 59,
51, 43, 35, 27, 19, 11, 3, 60, 52, 44, 36, 63, 55, 47, 39, 31, 23, 15, 7, 62, 54, 46, 38, 30, 22,14, 6, 61, 53, 45, 37, 29, 21, 13, 5, 28, 20, 12, 4]
key_plus_bit = [] for i in range0, lenpc_1:
key_plus_bit.appendkey_bit[pc_1[i]-1] return key_plus_bit
def shift_bitpre_bit, num_of_shift: for i in rangenum_of_shift:
temp_bit = pre_bit[0] pre_bit = pre_bit[1:]
pre_bit += temp_bit return pre_bit
def right_shift_bitpre_bit, num_of_shift: for i in rangenum_of_shift:
temp_bit = pre_bit[27] pre_bit = pre_bit[:27]
pre_bit = temp_bit + pre_bit return pre_bit
def get_c1_to_c16c, d: shift = [1, 1, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 1]
for i in range16: c.appendshift_bitc[i], shift[i]
d.appendshift_bitd[i], shift[i] return c, d
def joinc, d: key_plus_block = []
for i in range17: key_plus_block.appendc[i]+d[i]
return key_plus_block def get_key_plus_bit_2cd_block:
pc_2 = [14, 17, 11, 24, 1, 5, 3, 28, 15, 6, 21, 10, 23, 19, 12, 4, 26, 8, 16, 7, 27, 20, 13, 2, 41, 52, 31, 37, 47, 55, 30, 40, 51, 45, 33, 48, 44, 49,
39, 56, 34, 53, 46, 42, 50, 36, 29, 32] key_plus_bit_2 = []
for i in range1, lencd_block: cd_temp =
for j in range 0, lenpc_2: cd_temp += cd_block[i][pc_2[j]-1];
key_plus_bit_2.appendcd_temp return key_plus_bit_2
def message_permutation_1message:
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ip = [58, 50, 42, 34, 26, 18, 10, 2, 60, 52, 44, 36, 28, 20, 12, 4, 62, 54, 46, 38, 30, 22, 14, 6, 64, 56, 48, 40, 32, 24, 16, 8, 57, 49, 41, 33, 25, 17,
9, 1, 59, 51, 43, 35, 27, 19, 11, 3, 61, 53, 45, 37, 29, 21, 13, 5, 63, 55, 47, 39, 31, 23, 15, 7];
message_permutation_1 = for i in range0, lenip:
message_permutation_1 += message[ip[i]-1]; return message_permutation_1
def e_bitmessage: e = [32, 1, 2, 3, 4, 5, 4, 5, 6, 7, 8, 9, 8, 9, 10, 11, 12, 13, 12, 13, 14,
15, 16, 17, 16, 17, 18, 19, 20, 21, 20, 21, 22, 23, 24, 25, 24, 25, 26, 27, 28, 29, 28, 29, 30, 31, 32, 1];
e_bit = for i in range0,lene:
e_bit += message[e[i]-1]; return e_bit
def xor_bite_rn,kn, x: result_bit =
for i in range 0,lene_rn: result_bit += xore_rn[i], kn[x][i]
return result_bit def xorbit1, bit2:
ifbit1 == 1: ifbit2==1:
return0 else:
return1 else:
ifbit2==1: return 1
else: return0
def b_nk_xor: b_n = [];
for i in range 0, lenk_xor, 6: temp =
for j in rangei, i + 6: temp += k_xor[j]
b_n.appendtemp return b_n
def s_nb_n, i, s: row = intb_n[i][0]+b_n[i][5], 2
column = intb_n[i][1]+b_n[i][2]+b_n[i][3]+b_n[i][4], 2 return bins[row][column].replace0b, .zfill4;
def fs_box: p = [16, 7, 20, 21, 29, 12, 28, 17, 1, 15, 23, 26, 5, 18, 31, 10, 2, 8, 24,
14, 32, 27, 3, 9, 19, 13, 30, 6, 22, 11, 4, 25]; temp =
for i in range0, lenp: temp+=s_box[p[i]-1]
return temp def rnln_min1, f:
temp = for i in range0, lenf:
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temp += xorln_min1[i], f[i] return temp
def lnrnkn, x, l, r: e = e_bitr
m = xor_bite, kn, x b = b_nm
s1 = [[14, 4, 13, 1, 2, 15, 11, 8, 3, 10, 6, 12, 5, 9, 0, 7],[0, 15, 7, 4, 14, 2, 13, 1, 10, 6, 12, 11, 9, 5, 3, 8],[4, 1, 14, 8, 13, 6, 2, 11, 15, 12, 9,
7, 3, 10, 5, 0],[ 15, 12, 8, 2, 4, 9, 1, 7, 5, 11, 3, 14, 10, 0, 6, 13]]; s2 = [[15, 1, 8, 14, 6, 11, 3, 4, 9, 7, 2, 13, 12, 0, 5, 10],[ 3, 13, 4, 7,
15, 2, 8, 14, 12, 0, 1, 10, 6, 9, 11, 5],[0, 14, 7, 11, 10, 4, 13, 1, 5, 8, 12, 6, 9, 3, 2, 15],[13, 8, 10, 1, 3, 15, 4, 2, 11, 6, 7, 12, 0, 5, 14, 9]];
s3 = [[10, 0, 9, 14, 6, 3, 15, 5, 1, 13, 12, 7, 11, 4, 2, 8],[13, 7, 0, 9, 3, 4, 6, 10, 2, 8, 5, 14, 12, 11, 15, 1],[13, 6, 4, 9, 8, 15, 3, 0, 11, 1, 2,
12, 5, 10, 14, 7], [1, 10, 13, 0, 6, 9, 8, 7, 4, 15, 14, 3, 11, 5, 2, 12]]; s4 = [[7, 13, 14, 3, 0, 6, 9, 10, 1, 2, 8, 5, 11, 12, 4, 15], [13, 8, 11,
5, 6, 15, 0, 3, 4, 7, 2, 12, 1, 10, 14, 9], [10, 6, 9, 0, 12, 11, 7, 13, 15, 1, 3, 14, 5, 2, 8, 4], [3, 15, 0, 6, 10, 1, 13, 8, 9, 4, 5, 11, 12, 7, 2, 14]];
s5 = [[2, 12, 4, 1, 7, 10, 11, 6, 8, 5, 3, 15, 13, 0, 14, 9], [14, 11, 2, 12, 4, 7, 13, 1, 5, 0, 15, 10, 3, 9, 8, 16], [4, 2, 1, 11, 10, 13, 7, 8, 15, 9,
12, 5, 6, 3, 0, 14], [11, 8, 12, 7, 1, 14, 2, 13, 6, 15, 0, 9, 10, 4, 5, 3]]; s6 = [[12, 1, 10, 15, 9, 2, 6, 8, 0, 13, 3, 4, 14, 7, 5, 11], [10, 15, 4,
2, 7, 12, 9, 5, 6, 1, 13, 14, 0, 11, 3, 8], [9, 14, 15, 5, 2, 8, 12, 3, 7, 0, 4, 10, 1, 13, 11, 6], [4, 3, 2, 12, 9, 5, 15, 10, 11, 14, 1, 7, 6, 0, 8, 13]];
s7 = [[4, 11, 2, 14, 15, 0, 8, 13, 3, 12, 9, 7, 5, 10, 6, 1], [13, 0, 11, 7, 4, 9, 1, 10, 14, 3, 5, 12, 2, 15, 8, 6], [1, 4, 11, 13, 12, 3, 7, 14, 10,
15, 6, 8, 0, 5, 9, 2], [6, 11, 13, 8, 1, 4, 10, 7, 9, 5, 0, 15, 14, 2, 3, 12]]; s8 =[[13, 2, 8, 4, 6, 15, 11, 1, 10, 9, 3, 14, 5, 0, 12, 7], [1, 15, 13, 8,
10, 3, 7, 4, 12, 5, 6, 11, 0, 14, 9, 2], [7, 11, 4, 1, 9, 12, 14, 2, 0, 6, 10, 13, 15, 3, 5, 8], [2, 1, 14, 7, 4, 10, 8, 13, 15, 12, 9, 0, 3, 5, 6, 11]];
s1b1 = s_nb, 0, s1 s2b2 = s_nb, 1, s2
s3b3 = s_nb, 2, s3 s4b4 = s_nb, 3, s4
s5b5 = s_nb, 4, s5 s6b6 = s_nb, 5, s6
s7b7 = s_nb, 6, s7 s8b8 = s_nb, 7, s8
s_box = s1b1 + s2b2 + s3b3 + s4b4 + s5b5 + s6b6 + s7b7 + s8b8 f_var = fs_box
result = rnl, f_var return result
def ip_minrnln:
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ip_inv = [40, 8, 48, 16, 56, 24, 64, 32, 39, 7, 47, 15, 55, 23, 63, 31, 38, 6, 46, 14, 54, 22, 62, 30, 37, 5, 45, 13, 53, 21, 61, 29, 36, 4, 44, 12, 52,
20, 60, 28, 35, 3, 43, 11, 51, 19, 59, 27, 34, 2, 42, 10, 50, 18, 58, 26, 33, 1, 41, 9, 49, 17, 57, 25];
temp = []; for i in range0, lenip_inv:
temp.appendrnln[ip_inv[i]-1]; encrypt_m_bit = .jointemp
return encrypt_m_bit def get_img_resimgPath, param:
ifparam == height: param = 0
else: param = 1
img = Image.openimgPath imgSize = img.size
return imgSize[param] def get_img_pximgPath:
img = Image.openimgPath imgPx = img.load
x = get_img_resimgPath, height; x - height y = get_img_resimgPath, width; y - width
plainPx = [] for i in range x:
for j in range y: plainPx.appendimgPx[i, j] return plainPx
Get blue pixels from image for padding process def get_bluePx0rgbaPx:
bluePx = [] for i in range 0, lenrgbaPx:
bluePx.appendrgbaPx[i][2] return bluePx
Get blue pixels from image to get padded message def get_bluePx1rgbaPx:
bluePx = [] for i in range 0, lenrgbaPx:
ifrgbaPx[i][3] == 0: If alpha 0, thats the message limit break
bluePx.appendrgbaPx[i][2] return bluePx
def pad_bluePxbluePx, msgBit: blueBit = []
for i in range0, lenmsgBit: bluePxList = listbinbluePx[i].replace0b,
bluePxList[lenbluePxList-1] = msgBit[i] joinedBluePx = .joinbluePxList
newBluePx = intjoinedBluePx, 2 blueBit.appendnewBluePx
return blueBit def set_bluePx_in_plainPxblue_pixel, plain_pixel:
temp = [] for i in range0, lenblue_pixel:
temp = listplain_pixel[i] temp[2] = blue_pixel[i]
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plain_pixel[i] = temp return plain_pixel
def extract_bluePxbluePx: msgBit =
for i in range0, lenbluePx: bluePxList = listbinbluePx[i].replace0b,
msgBit += bluePxList[lenbluePxList-1] return msgBit
def create_pngimgPath, rgbaPx, imgName, msgLength: x = get_img_resimgPath, height x - height
y = get_img_resimgPath, width y - width img = Image.newRGBA, x, y, white
k = 0 for i in rangex:
for j in rangey: R = rgbaPx[k][0]
G = rgbaPx[k][1] B = rgbaPx[k][2]
if k == msgLength : A = 0
else: A = 255
img.putpixeli, j, R, G, B, A k += 1
return img.saveimgName, PNG def get_key_binkey:
key_bin = ascii_to_bitkey key_bin_pc1 = get_key_plus_bitkey_bin
key_bin_div = divide_sidekey_bin_pc1 c0 = key_bin_div[0]
d0 = key_bin_div[1] c = [c0]
d = [d0] key_bin_c1_c16 = get_c1_to_c16c, d
c0 = key_bin_c1_c16[0] d0 = key_bin_c1_c16[1]
key_bin_join = joinc0,d0 key_bin_pc2 = get_key_plus_bit_2key_bin_join
return key_bin_pc2 def encrypt_mkey_bin_pc2, message:
message_bin = for i in range0, 8:
temp_bin = ascii_to_bitmessage[i] message_bin += temp_bin
ip1 = message_permutation_1message_bin message_divide = divide_sideip1
l0 = message_divide[0] r0 = message_divide[1]
ln = l0 rn = r0
x = 0 whilex 16:
r_temp = rn
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rn = lnrnkey_bin_pc2, x, ln, rn ln = r_temp
x += 1 rnln = strrn + strln
joined_c = c = ip_minrnln
joined_c += c return joined_c
def get_cipher_messagekey_bin_pc2, message: padded_m =
for i in range0, lenmessage, 8: char_length = lenmessage[i:i+8]
if char_length 8 : padded_m += message[i:i+char_length].ljust8,
else: padded_m += message[i:i+8].ljust8,
message = padded_m join_e_m =
for i in range0, lenmessage, 8: join_e_m += encrypt_mkey_bin_pc2,message[i:i+8]
return join_e_m def decrypt_mkey_bin_pc2, message_bin:
ip1 = message_permutation_1message_bin message_divide = divide_sideip1
l0 = message_divide[0] r0 = message_divide[1]
ln = l0 rn = r0
x = 15 whilex - 1:
r_temp = rn rn = lnrnkey_bin_pc2, x, ln, rn
ln = r_temp x -= 1
rnln = strrn + strln joined_c =
c = ip_minrnln joined_c += c
return joined_c def get_plain_messagekey_bin_pc2, message:
join_e_m = for i in range0, lenmessage, 64:
join_e_m += decrypt_mkey_bin_pc2, message[i:i+64] return join_e_m
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3. Internal_key.py
