Add files via upload

Author: akrasuski1

2017-07-15-ctfzone/decrypt_the_undecryptable/doit.py

@@ -0,0 +1,8 @@
+s=open("flag.encrypted","rb").read()
+
+o=0x2c500
+key=s[o:o+128]
+r=s[:128*50]
+for i in range(128*50, len(s)):
+    r+=chr(ord(s[i]) ^ ord(key[i%128]))
+open("dec","wb").write(r)