test_SHA256.py 文件源码

def runTest(self):
        """SHA256: 512/520 MiB test"""
        from Crypto.Hash import SHA256
        zeros = bchr(0x00) * (1024*1024)

        h = SHA256.new(zeros)
        for i in xrange(511):
            h.update(zeros)

        # This test vector is from PyCrypto's old testdata.py file.
        self.assertEqual('9acca8e8c22201155389f65abbf6bc9723edc7384ead80503839f49dcc56d767', h.hexdigest()) # 512 MiB

        for i in xrange(8):
            h.update(zeros)

        # This test vector is from PyCrypto's old testdata.py file.
        self.assertEqual('abf51ad954b246009dfe5a50ecd582fd5b8f1b8b27f30393853c3ef721e7fa6e', h.hexdigest()) # 520 MiB