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|
| import random |
| import sys |
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|
| def str_xor(secret, key): |
| |
| 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)]) |
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| flag_enc = chr(0x15) + chr(0x07) + chr(0x08) + chr(0x06) + chr(0x27) + chr(0x21) + chr(0x23) + chr(0x15) + chr(0x5c) + chr(0x01) + chr(0x57) + chr(0x2a) + chr(0x17) + chr(0x5e) + chr(0x5f) + chr(0x0d) + chr(0x3b) + chr(0x19) + chr(0x56) + chr(0x5b) + chr(0x5e) + chr(0x36) + chr(0x53) + chr(0x07) + chr(0x51) + chr(0x18) + chr(0x58) + chr(0x05) + chr(0x57) + chr(0x11) + chr(0x3a) + chr(0x56) + chr(0x0e) + chr(0x5d) + chr(0x53) + chr(0x11) + chr(0x54) + chr(0x5c) + chr(0x53) + chr(0x14) |
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|
|
| def print_flag(): |
| flag = str_xor(flag_enc, 'enkidu') |
| print(flag) |
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|
|
| def print_encouragement(): |
| encouragements = ['You can do it!', 'Keep it up!', |
| 'Look how far you\'ve come!'] |
| choice = random.choice(range(0, len(encouragements))) |
| print('\n-----------------------------------------------------') |
| print(encouragements[choice]) |
| print('-----------------------------------------------------\n\n') |
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|
|
| def main(): |
|
|
| print( |
| ''' |
| Y |
| .-^-. |
| / \ .- ~ ~ -. |
| () () / _ _ `. _ _ _ |
| \_ _/ / / \ \ . ~ _ _ ~ . |
| | | / / \ \ .' .~ ~-. `. |
| | | / / ) ) / / `.`. |
| \ \_ _/ / / / / / `' |
| \_ _ _.' / / ( ( |
| / / \ \\ |
| / / \ \\ |
| / / ) ) |
| ( ( / / |
| `. `. .' / |
| `. ~ - - - - ~ .' |
| ~ . _ _ _ _ . ~ |
| ''' |
| ) |
| print('Welcome to the serpentine encourager!\n\n') |
| |
| while True: |
| print('a) Print encouragement') |
| print('b) Print flag') |
| print('c) Quit\n') |
| choice = input('What would you like to do? (a/b/c) ') |
| |
| if choice == 'a': |
| print_encouragement() |
| |
| elif choice == 'b': |
| print('\nOops! I must have misplaced the print_flag function! Check my source code!\n\n') |
| |
| elif choice == 'c': |
| sys.exit(0) |
| |
| else: |
| print('\nI did not understand "' + choice + '", input only "a", "b" or "c"\n\n') |
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|
|
| if __name__ == "__main__": |
| main() |
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|
