22 lines
607 B
Python
22 lines
607 B
Python
from cStringIO import StringIO
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def get_flag(random):
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n = random.randint(10**16, 10**19)
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return n
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def generate_phunky(random):
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n = get_flag(random)
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digs = [n + ord(t) for t in 'easyctf']
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prog = 'x = 0 # REDACTED\ndigs = {}\nout = ""\nfor letter in reversed(digs):\n out = chr(letter - x) + out\nprint out'.format(str(digs))
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return StringIO(prog)
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def generate(random):
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return dict(files={
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"phunky1.py": generate_phunky
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})
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def grade(random, key):
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n = get_flag(random)
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if key.find("%d" % n) >= 0:
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return True, "Nice work!"
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return False, "Nope." |