Raise padding block_size limit to what is allowed by the specs. (#3108)
* Raize padding block_size limit to what is allowed by the specs.
* Add tests for raising padding limits.
* Amend C code for padding check to use uint16_t instead of uint8_t.
* Fix test to work in Python 3.
* Fix typo.
* Fix another typo.
* Fix return type of the padding checks.
* Change hypothesis test on padding.
* Update comment.
diff --git a/tests/hypothesis/test_padding.py b/tests/hypothesis/test_padding.py
index 29d726f..a433391 100644
--- a/tests/hypothesis/test_padding.py
+++ b/tests/hypothesis/test_padding.py
@@ -8,7 +8,7 @@
from cryptography.hazmat.primitives.padding import ANSIX923, PKCS7
-@given(integers(min_value=1, max_value=31), binary())
+@given(integers(min_value=1, max_value=255), binary())
def test_pkcs7(block_size, data):
# Generate in [1, 31] so we can easily get block_size in bits by
# multiplying by 8.
@@ -21,7 +21,7 @@
assert unpadder.update(padded) + unpadder.finalize() == data
-@given(integers(min_value=1, max_value=31), binary())
+@given(integers(min_value=1, max_value=255), binary())
def test_ansix923(block_size, data):
a = ANSIX923(block_size=block_size * 8)
padder = a.padder()