rev: add a few more challenges

rev/patchme_py/flag.txt.enc

@@ -0,0 +1,3 @@
+
+* '	UYX+
+CR1@

rev/patchme_py/output.txt

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+$ python patchme.flag.py
+Please enter correct password for flag: ak98-=90adfjhgj321sleuth9000
+Welcome back... your flag, user:
+picoCTF{p47ch1ng_l1f3_h4ck_c4a4688b}

rev/patchme_py/patchme.flag.py

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+### THIS FUNCTION WILL NOT HELP YOU FIND THE FLAG --LT ########################
+def str_xor(secret, key):
+    #extend key to secret length
+    new_key = key
+    i = 0
+    while len(new_key) < len(secret):
+        new_key = new_key + key[i]
+        i = (i + 1) % len(key)        
+    return "".join([chr(ord(secret_c) ^ ord(new_key_c)) for (secret_c,new_key_c) in zip(secret,new_key)])
+###############################################################################
+
+
+flag_enc = open('flag.txt.enc', 'rb').read()
+
+
+
+def level_1_pw_check():
+    user_pw = input("Please enter correct password for flag: ")
+    if( user_pw == "ak98" + \
+                   "-=90" + \
+                   "adfjhgj321" + \
+                   "sleuth9000"):
+        print("Welcome back... your flag, user:")
+        decryption = str_xor(flag_enc.decode(), "utilitarian")
+        print(decryption)
+        return
+    print("That password is incorrect")
+
+
+
+level_1_pw_check()