def _parse_7_string(cls, suffix):
# XXX: annoyingly, official spec embeds salt *raw*, yet doesn't specify a hash encoding.
# so assuming only h64 chars are valid for salt, and are ASCII encoded.
# split into params & digest
parts = suffix.encode("ascii").split(b"$")
if len(parts) == 2:
params, digest = parts
elif len(parts) == 1:
params, = parts
digest = None
else:
raise uh.exc.MalformedHashError()
# parse params & return
if len(params) < 11:
raise uh.exc.MalformedHashError(cls, "params field too short")
return dict(
ident=IDENT_7,
rounds=h64.decode_int6(params[:1]),
block_size=h64.decode_int30(params[1:6]),
parallelism=h64.decode_int30(params[6:11]),
salt=params[11:],
checksum=h64.decode_bytes(digest) if digest else None,
)
def test_decode_bytes(self):
for result, source in self.encoded_bytes:
out = h64.decode_bytes(source)
self.assertEqual(out, result)
#wrong size (1 % 4)
self.assertRaises(ValueError, h64.decode_bytes, b('abcde'))
self.assertRaises(TypeError, h64.decode_bytes, u'abcd')
def test_decode_bytes(self):
for result, source in self.encoded_bytes:
out = h64.decode_bytes(source)
self.assertEqual(out, result)
#wrong size (1 % 4)
self.assertRaises(ValueError, h64.decode_bytes, b('abcde'))
self.assertRaises(TypeError, h64.decode_bytes, u'abcd')
def test_encode_transposed_bytes(self):
for result, input, offsets in self.encode_transposed + self.encode_transposed_dups:
tmp = h64.encode_transposed_bytes(input, offsets)
out = h64.decode_bytes(tmp)
self.assertEqual(out, result)
def test_decode_bytes_padding(self):
for source, result in self.decode_padding_bytes:
out = h64.decode_bytes(source)
self.assertEqual(out, result)
self.assertRaises(TypeError, h64.decode_bytes, u'..')
def test_encode_transposed_bytes(self):
for result, input, offsets in self.encode_transposed + self.encode_transposed_dups:
tmp = h64.encode_transposed_bytes(input, offsets)
out = h64.decode_bytes(tmp)
self.assertEqual(out, result)
def test_decode_bytes_padding(self):
for source, result in self.decode_padding_bytes:
out = h64.decode_bytes(source)
self.assertEqual(out, result)
self.assertRaises(TypeError, h64.decode_bytes, u'..')
