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https://github.com/trezor/trezor-firmware.git
synced 2024-11-13 11:09:01 +00:00
Implemented test of pin exponential backoff
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@ -1,3 +1,4 @@
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import time
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import unittest
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import common
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@ -10,7 +11,7 @@ class TestProtectCall(common.TrezorTest):
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entropy_len = 10
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entropy = self.client.get_entropy(entropy_len)
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self.assertEqual(len(entropy), entropy_len)
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def test_no_protection(self):
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self.client.load_device(seed=self.mnemonic1, pin='')
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@ -30,6 +31,37 @@ class TestProtectCall(common.TrezorTest):
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def test_cancelled_pin(self):
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self.client.setup_debuglink(button=True, pin_correct=-1) # PIN cancel
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self.assertRaises(PinException, self._some_protected_call)
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def test_exponential_backoff_with_reboot(self):
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self.client.setup_debuglink(button=True, pin_correct=False)
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def test_backoff(attempts, start):
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expected = 1.8 ** attempts
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got = time.time() - start
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msg = "Pin delay expected to be at least %s seconds, got %s" % (expected, got)
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print msg
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self.assertLessEqual(expected, got, msg)
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for attempt in range(1, 6):
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start = time.time()
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self.assertRaises(PinException, self._some_protected_call)
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test_backoff(attempt, start)
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# Unplug Trezor now
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self.client.debuglink.stop()
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self.client.close()
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# Give it some time to reboot (it may take some time on RPi)
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boot_delay = 5
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start = time.time()
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time.sleep(boot_delay)
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# Connect to Trezor again
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self.setUp()
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print "Expected reboot time %s seconds" % (1.8 ** attempt)
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print "Rebooted in %s seconds" % (time.time() - start)
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self.assertLessEqual(1.8 ** attempt, time.time() - start, "Bootup took less than expected!")
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if __name__ == '__main__':
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unittest.main()
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@ -41,7 +41,12 @@ class TrezorClient(object):
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def init_device(self):
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self.master_public_key = None
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self.features = self.call(proto.Initialize())
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def close(self):
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self.transport.close()
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if self.debuglink:
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self.debuglink.transport.close()
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def get_master_public_key(self):
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if self.master_public_key:
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return self.master_public_key
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@ -45,4 +45,7 @@ class DebugLink(object):
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self.press_button(True)
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def press_no(self):
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self.press_button(False)
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self.press_button(False)
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def stop(self):
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self.transport.write(proto.DebugLinkStop())
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