small edit

chals/crypto/safe_cracking/challenge.yml

@@ -19,6 +19,7 @@ extra:
 flags:
   - sigpwny{is_this_r3@lly_the_m0st_s3cure_s@f3_3ver?}
 files:
+  - note.txt
 hints:
   - Look up how to perform a Diffie-Hellman key exchange. 
 state: hidden

chals/crypto/safe_cracking/note.txt

@@ -0,0 +1,11 @@
+Hints to help me remember the combination to my safe (since I always forget it):
+Note that the answer to each problem corresponds to one part of the safe combination.
+
+1. Anna and Beatrice perform a Diffie-Hellman key exchange where p = 17 and g = 3. 
+   Privately, Anna selects 5 and Beatrice chooses 11. What's their shared secret key?
+2. The two perform another key exchange. Now, p = 157 and g = 2. 
+   Anna's new private key is 67, while Beatrice's public key is 73. What is Anna's public key?
+3. Anna forgot her private key and wants to solve for it. We know the following:
+   a. Their shared secret key, s, is equal to 2417097.
+   b. The values of p and g are 3042161 and 5, respectively.
+   c. Beatrice's private key is 73.

chals/crypto/safe_cracking/server.py

@@ -14,27 +14,11 @@ def prompt():
             print("Please enter a number.")
             return False
     return True
-
-def print_notes():
-    print("\nHints to help me remember the combination to my safe (since I always forget it).")
-    print("The answer to each problem corresponds to one part of the safe combination.")
-    print("1. Anna and Beatrice perform a Diffie-Hellman key exchange where p = 17 and g = 3. Privately, Anna selects 5 and Beatrice chooses 11. What's their shared secret key?")
-    print("2. The two perform another key exchange. Now, p = 157 and g = 2. Anna's new private key is 67, while Beatrice's public key is 73. What is Anna's public key?")
-    print("3. Anna forgot her private key and wants to solve for it. We know the following:\n\tTheir shared secret key, s, is equal to 2417097.\n\tThe values of p and g are 3042161 and 5, respectively.\n\tBeatrice's private key is 73.\n") 
-    print("Get ready to start guessing!")
-    time.sleep(1)
 
 def main():
     print("Welcome to my extremely secure safe!")
-    print("Note to self: Just in case I forget the combination, here's a note that reminds me how to remember it.")
-    view_notes = input("View notes? If yes, enter 'y' ")
-
-    if (view_notes == "y"):
-        print_notes()
-    else:
-        print("Might want to view the notes...")
-        time.sleep(1)
-        print("Get ready to start guessing!")
+    time.sleep(1)
+    print("Get ready to start guessing!")
     if prompt():
         print("You have unlocked the safe! Please don't take anything except for this flag:", FLAG)
     else: