web apps and natas

Steganography/Images/sudoku.py

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+from PIL import Image
+
+
+# solved sudoku
+sudoku = '''
+964127538
+712385694
+385496712
+491578263
+238614975
+576239841
+627843159
+153962487
+849751326
+'''
+s = sudoku.replace('\n', '')
+
+image = Image.open('image.png').convert('RGB')
+out = Image.new('RGB', image.size)
+
+for j in range(9):
+    for i in range(9):
+      img_cell = image.crop((i * 50, j * 50, i * 50 + 50, j * 50 + 50))
+      c = (int(s[j * 9 + i]) - 1) * 50
+      out.paste(img_cell, (c, j * 50))
+
+out.save('out_image.png')

Steganography/Images/xor_bytes.py

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+#!/usr/bin/env python
+
+
+__author__ = "bt3gl"
+
+
+def xor_str(str1, str2):
+    flag = ""
+    for i in range(len(str1)):
+        flag += (chr(int(str1[i], 16) ^ int(str2[i], 16)))
+    print flag
+
+
+if __name__ == '__main__':
+    kTXt = ''.join('28 36 38 2C 10 03 04 14 0A 15 08 14 02 07 08 18 0D 00 61 04 16 11 0B 12 00 07 61 03 0C 73 02 1F 02 1D 06 12 63 04 08 03 0B 1C 14 03 63 1D 0E 03 0A 10 04 2A 61 8F AC C1 00 00 00 00').split()
+    xORk = ''.join('43 53 41 57 43 53 41 57 43 53 41 57 43 53 41 57 43 53 41 57 43 53 41 57 43 53 41 57 43 53 41 57 43 53 41 57 43 53 41 57 43 53 41 57 43 53 41 57 43 53 41 57 43 53 41 57 43 53 41 57').split()
+
+    xor_str(kTXt, xORk)

Steganography/Images/xor_imag.go

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+package main
+
+import (
+    "fmt"
+    "os"
+)
+
+func main() {
+    file, err := os.Open("ataylor.png")
+    if err != nil {
+        fmt.Println(err)
+        return
+    }
+    info, _ := os.Stat("ataylor.png")
+    input := make([]byte, info.Size())
+    out := make([]byte, len(input))
+    file.Read(input)
+
+    key := [...]byte{0x43, 0x53, 0x41, 0x57} // CSAW
+    for i := 0; i < len(input); i++ {
+        out[i] = input[i] ^ key[i%len(key)]
+    }
+
+    fmt.Println(string(out))
+}