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trezor-firmware/tests/test_trezor.crypto.hashlib.sha256.py
2016-11-06 17:04:25 +01:00

53 lines
2.4 KiB
Python

from common import *
from trezor.crypto import hashlib
class TestCryptoSha256(unittest.TestCase):
# vectors from http://www.di-mgt.com.au/sha_testvectors.html
def test_digest(self):
self.assertEqual(hashlib.sha256(b'').digest(), unhexlify('e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855'))
self.assertEqual(hashlib.sha256(b'abc').digest(), unhexlify('ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad'))
self.assertEqual(hashlib.sha256(b'abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq').digest(), unhexlify('248d6a61d20638b8e5c026930c3e6039a33ce45964ff2167f6ecedd419db06c1'))
self.assertEqual(hashlib.sha256(b'abcdefghbcdefghicdefghijdefghijkefghijklfghijklmghijklmnhijklmnoijklmnopjklmnopqklmnopqrlmnopqrsmnopqrstnopqrstu').digest(), unhexlify('cf5b16a778af8380036ce59e7b0492370b249b11e8f07a51afac45037afee9d1'))
def test_update(self):
x = hashlib.sha256()
self.assertEqual(x.digest(), unhexlify('e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855'))
x = hashlib.sha256()
x.update(b'abc')
self.assertEqual(x.digest(), unhexlify('ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad'))
x = hashlib.sha256()
x.update(b'abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq')
self.assertEqual(x.digest(), unhexlify('248d6a61d20638b8e5c026930c3e6039a33ce45964ff2167f6ecedd419db06c1'))
x = hashlib.sha256()
x.update(b'abcdefghbcdefghicdefghijdefghijkefghijklfghijklmghijklmnhijklmnoijklmnopjklmnopqklmnopqrlmnopqrsmnopqrstnopqrstu')
self.assertEqual(x.digest(), unhexlify('cf5b16a778af8380036ce59e7b0492370b249b11e8f07a51afac45037afee9d1'))
x = hashlib.sha256()
for i in range(1000000):
x.update(b'a')
self.assertEqual(x.digest(), unhexlify('cdc76e5c9914fb9281a1c7e284d73e67f1809a48a497200e046d39ccc7112cd0'))
'''
x = hashlib.sha256()
for i in range(16777216):
x.update(b'abcdefghbcdefghicdefghijdefghijkefghijklfghijklmghijklmnhijklmno')
self.assertEqual(x.digest(), unhexlify('50e72a0e26442fe2552dc3938ac58658228c0cbfb1d2ca872ae435266fcd055e'))
'''
def test_digest_multi(self):
x = hashlib.sha256()
d0 = x.digest()
d1 = x.digest()
d2 = x.digest()
self.assertEqual(d0, d1)
self.assertEqual(d0, d2)
if __name__ == '__main__':
unittest.main()