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Unified Diff: third_party/google-endpoints/Crypto/SelfTest/Random/Fortuna/test_FortunaGenerator.py

Issue 2666783008: Add google-endpoints to third_party/. (Closed)
Patch Set: Created 3 years, 11 months ago
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Index: third_party/google-endpoints/Crypto/SelfTest/Random/Fortuna/test_FortunaGenerator.py
diff --git a/third_party/google-endpoints/Crypto/SelfTest/Random/Fortuna/test_FortunaGenerator.py b/third_party/google-endpoints/Crypto/SelfTest/Random/Fortuna/test_FortunaGenerator.py
new file mode 100644
index 0000000000000000000000000000000000000000..d41bb022a8a11da1429fc30c194cb4a3d669b479
--- /dev/null
+++ b/third_party/google-endpoints/Crypto/SelfTest/Random/Fortuna/test_FortunaGenerator.py
@@ -0,0 +1,83 @@
+# -*- coding: utf-8 -*-
+#
+# SelfTest/Random/Fortuna/test_FortunaGenerator.py: Self-test for the FortunaGenerator module
+#
+# Written in 2008 by Dwayne C. Litzenberger <dlitz@dlitz.net>
+#
+# ===================================================================
+# The contents of this file are dedicated to the public domain. To
+# the extent that dedication to the public domain is not available,
+# everyone is granted a worldwide, perpetual, royalty-free,
+# non-exclusive license to exercise all rights associated with the
+# contents of this file for any purpose whatsoever.
+# No rights are reserved.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+# ===================================================================
+
+"""Self-tests for Crypto.Random.Fortuna.FortunaGenerator"""
+
+__revision__ = "$Id$"
+
+import sys
+if sys.version_info[0] == 2 and sys.version_info[1] == 1:
+ from Crypto.Util.py21compat import *
+from Crypto.Util.py3compat import *
+
+import unittest
+from binascii import b2a_hex
+
+class FortunaGeneratorTests(unittest.TestCase):
+ def setUp(self):
+ global FortunaGenerator
+ from Crypto.Random.Fortuna import FortunaGenerator
+
+ def test_generator(self):
+ """FortunaGenerator.AESGenerator"""
+ fg = FortunaGenerator.AESGenerator()
+
+ # We shouldn't be able to read data until we've seeded the generator
+ self.assertRaises(Exception, fg.pseudo_random_data, 1)
+ self.assertEqual(0, fg.counter.next_value())
+
+ # Seed the generator, which should set the key and increment the counter.
+ fg.reseed(b("Hello"))
+ self.assertEqual(b("0ea6919d4361551364242a4ba890f8f073676e82cf1a52bb880f7e496648b565"), b2a_hex(fg.key))
+ self.assertEqual(1, fg.counter.next_value())
+
+ # Read 2 full blocks from the generator
+ self.assertEqual(b("7cbe2c17684ac223d08969ee8b565616") + # counter=1
+ b("717661c0d2f4758bd6ba140bf3791abd"), # counter=2
+ b2a_hex(fg.pseudo_random_data(32)))
+
+ # Meanwhile, the generator will have re-keyed itself and incremented its counter
+ self.assertEqual(b("33a1bb21987859caf2bbfc5615bef56d") + # counter=3
+ b("e6b71ff9f37112d0c193a135160862b7"), # counter=4
+ b2a_hex(fg.key))
+ self.assertEqual(5, fg.counter.next_value())
+
+ # Read another 2 blocks from the generator
+ self.assertEqual(b("fd6648ba3086e919cee34904ef09a7ff") + # counter=5
+ b("021f77580558b8c3e9248275f23042bf"), # counter=6
+ b2a_hex(fg.pseudo_random_data(32)))
+
+
+ # Try to read more than 2**20 bytes using the internal function. This should fail.
+ self.assertRaises(AssertionError, fg._pseudo_random_data, 2**20+1)
+
+def get_tests(config={}):
+ from Crypto.SelfTest.st_common import list_test_cases
+ return list_test_cases(FortunaGeneratorTests)
+
+if __name__ == '__main__':
+ suite = lambda: unittest.TestSuite(get_tests())
+ unittest.main(defaultTest='suite')
+
+# vim:set ts=4 sw=4 sts=4 expandtab:

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