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