# Testing sha module (NIST's Secure Hash Algorithm)
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# use the three examples from Federal Information Processing Standards
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# Publication 180-1, Secure Hash Standard, 1995 April 17
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# http://www.itl.nist.gov/div897/pubs/fip180-1.htm
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import warnings
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warnings.filterwarnings("ignore", "the sha module is deprecated.*",
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DeprecationWarning)
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import sha
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import unittest
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from test import test_support
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class SHATestCase(unittest.TestCase):
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def check(self, data, digest):
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# Check digest matches the expected value
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obj = sha.new(data)
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computed = obj.hexdigest()
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self.assertTrue(computed == digest)
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# Verify that the value doesn't change between two consecutive
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# digest operations.
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computed_again = obj.hexdigest()
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self.assertTrue(computed == computed_again)
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# Check hexdigest() output matches digest()'s output
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digest = obj.digest()
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hexd = ""
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for c in digest:
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hexd += '%02x' % ord(c)
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self.assertTrue(computed == hexd)
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def test_case_1(self):
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self.check("abc",
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"a9993e364706816aba3e25717850c26c9cd0d89d")
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def test_case_2(self):
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self.check("abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq",
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"84983e441c3bd26ebaae4aa1f95129e5e54670f1")
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def test_case_3(self):
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self.check("a" * 1000000,
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"34aa973cd4c4daa4f61eeb2bdbad27316534016f")
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def test_case_4(self):
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self.check(chr(0xAA) * 80,
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'4ca0ef38f1794b28a8f8ee110ee79d48ce13be25')
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def test_main():
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test_support.run_unittest(SHATestCase)
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if __name__ == "__main__":
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test_main()
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