for i in xrange(rounds):
for puzzle_size in puzzle_sizes:
print "### Protocol v2 attack simulation / %s puzzles (Round %s)\n" % (puzzle_size, i)
# Alice puzzles generation
a = UserPuzzle(puzzle_size)
start_time = datetime.now()
alice_pre_puzzle_keys, alice_enc_secret_keys = a.gen_puzzles_v2()
alice_time = datetime.now() - start_time
# Bob receive puzzles generated by Alice and solve a random puzzle in the list
b = UserPuzzle(puzzle_size)
start_time = datetime.now()
bob_key, bob_index = b.solve_random_puzzle_v2(alice_pre_puzzle_keys, alice_enc_secret_keys)
bob_time = datetime.now() - start_time
start_time = datetime.now()
# Eve pre compute all puzzle keys
puzzle_keys = []
for ppk in alice_pre_puzzle_keys:
p = Puzzle(None, ppk, None, None)
puzzle_keys.append(p.pk)
# Eve try to break each encrypted key she captured
for key in alice_enc_secret_keys:
e = UserPuzzle(puzzle_size)
eve_key, eve_index = e.break_random_puzzle_v2(puzzle_keys, key)