Investigative Reversing 1

2024-06-09 19:41:42 +02:00
parent 466fd00681
commit 278bcedb4d
21 changed files with 97 additions and 0 deletions
--- a/investigative_reversing_0/sol.py
+++ b/investigative_reversing_0/sol.py
@@ -0,0 +1,24 @@
+#!/home/maxime/.pyvenv/bin/python3
+
+with open("mystery.png", 'rb') as f:
+    image = f.read()
+    l = len(image)
+    flag_start = l-26
+
+    for i in range(flag_start, l):
+        print(chr(image[i]), end='')
+    print()
+
+    for i in range(flag_start, flag_start + 6):
+        print(chr(image[i]), end='')
+
+    for i in range(flag_start + 6, flag_start + 15):
+        print(chr(image[i] - 5), end ='')
+
+    print(chr(image[flag_start + 15] + 3), end='')
+
+    for i in range(flag_start + 16, flag_start + 26):
+        print(chr(image[i]), end='')
+
+    print()
+