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# -*- coding: utf-8 -*-
#
# SelfTest/Hash/test_SHA3_224.py: Self-test for the SHA-3/224 hash function
#
# ===================================================================
# 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-test suite for Crypto.Hash.SHA3_224"""
import unittest
from binascii import hexlify
from Crypto.SelfTest.loader import load_test_vectors
from Crypto.SelfTest.st_common import list_test_cases
from Crypto.Hash import SHA3_224 as SHA3
from Crypto.Util.py3compat import b
class APITest(unittest.TestCase):
def test_update_after_digest(self):
msg=b("rrrrttt")
# Normally, update() cannot be done after digest()
h = SHA3.new(data=msg[:4])
dig1 = h.digest()
self.assertRaises(TypeError, h.update, msg[4:])
dig2 = SHA3.new(data=msg).digest()
# With the proper flag, it is allowed
h = SHA3.new(data=msg[:4], update_after_digest=True)
self.assertEqual(h.digest(), dig1)
# ... and the subsequent digest applies to the entire message
# up to that point
h.update(msg[4:])
self.assertEqual(h.digest(), dig2)
def get_tests(config={}):
from .common import make_hash_tests
tests = []
test_vectors = load_test_vectors(("Hash", "SHA3"),
"ShortMsgKAT_SHA3-224.txt",
"KAT SHA-3 224",
{ "len" : lambda x: int(x) } ) or []
test_data = []
for tv in test_vectors:
if tv.len == 0:
tv.msg = b("")
test_data.append((hexlify(tv.md), tv.msg, tv.desc))
tests += make_hash_tests(SHA3, "SHA3_224", test_data,
digest_size=SHA3.digest_size,
oid="2.16.840.1.101.3.4.2.7")
tests += list_test_cases(APITest)
return tests
if __name__ == '__main__':
import unittest
suite = lambda: unittest.TestSuite(get_tests())
unittest.main(defaultTest='suite')