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1 # Testing sha module (NIST's Secure Hash Algorithm) |
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2 |
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3 # use the three examples from Federal Information Processing Standards |
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4 # Publication 180-1, Secure Hash Standard, 1995 April 17 |
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5 # http://www.itl.nist.gov/div897/pubs/fip180-1.htm |
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6 |
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7 import warnings |
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8 warnings.filterwarnings("ignore", "the sha module is deprecated.*", |
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9 DeprecationWarning) |
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10 |
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11 import sha |
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12 import unittest |
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13 from test import test_support |
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14 |
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15 |
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16 class SHATestCase(unittest.TestCase): |
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17 def check(self, data, digest): |
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18 # Check digest matches the expected value |
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19 obj = sha.new(data) |
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20 computed = obj.hexdigest() |
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21 self.assert_(computed == digest) |
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22 |
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23 # Verify that the value doesn't change between two consecutive |
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24 # digest operations. |
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25 computed_again = obj.hexdigest() |
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26 self.assert_(computed == computed_again) |
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27 |
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28 # Check hexdigest() output matches digest()'s output |
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29 digest = obj.digest() |
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30 hexd = "" |
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31 for c in digest: |
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32 hexd += '%02x' % ord(c) |
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33 self.assert_(computed == hexd) |
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34 |
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35 def test_case_1(self): |
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36 self.check("abc", |
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37 "a9993e364706816aba3e25717850c26c9cd0d89d") |
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38 |
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39 def test_case_2(self): |
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40 self.check("abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq", |
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41 "84983e441c3bd26ebaae4aa1f95129e5e54670f1") |
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42 |
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43 def test_case_3(self): |
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44 self.check("a" * 1000000, |
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45 "34aa973cd4c4daa4f61eeb2bdbad27316534016f") |
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46 |
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47 def test_case_4(self): |
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48 self.check(chr(0xAA) * 80, |
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49 '4ca0ef38f1794b28a8f8ee110ee79d48ce13be25') |
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50 |
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51 def test_main(): |
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52 test_support.run_unittest(SHATestCase) |
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53 |
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54 |
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55 if __name__ == "__main__": |
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56 test_main() |