updates people updates

training/htb/challenges/rev/solve.py

@@ -0,0 +1,25 @@
+from pwn import xor
+
+with open("./encrypted_data.txt", "r") as f:
+    data = f.readline()
+
+key = bytes.fromhex("524A4A3344534350")
+
+print(len(key))
+
+dec_key = []
+
+for s in key:
+    s -= 17
+    if s < ord('A'):
+        s += 26
+    dec_key.append(s)
+
+dec_key[3] = b"3"[0]
+
+print("".join(chr(c) for c in dec_key))
+
+data = bytes.fromhex(data)
+
+print(xor(data, dec_key))
+