bignum_mod_raw.py: Added BignumModRawOperation
This patch is adding a basic instantance of `BignumModRawOperation`
and creates an `BignumModRawOperationArchSplit` class, copying
over the implementation of `BignumCoreRawOperationArchSplit`.
# limitations under the License.
from abc import ABCMeta
+from typing import Dict, Iterator, List
+from . import test_case
from . import test_data_generation
+from . import bignum_common
class BignumModRawTarget(test_data_generation.BaseTarget, metaclass=ABCMeta):
#pylint: disable=abstract-method
@@ -48,7 +51,42 @@ class BignumModRawTarget(test_data_generation.BaseTarget, metaclass=ABCMeta):
# END MERGE SLOT 6
# BEGIN MERGE SLOT 7
+class BignumModRawOperation(bignum_common.OperationCommon, BignumModRawTarget, metaclass=ABCMeta):
+ #pylint: disable=abstract-method
+ pass
+class BignumModRawOperationArchSplit(BignumModRawOperation):
+ #pylint: disable=abstract-method
+ """Common features for bignum core operations where the result depends on
+ the limb size."""
+
+ def __init__(self, val_a: str, val_b: str, bits_in_limb: int) -> None:
+ super().__init__(val_a, val_b)
+ bound_val = max(self.int_a, self.int_b)
+ self.bits_in_limb = bits_in_limb
+ self.bound = bignum_common.bound_mpi(bound_val, self.bits_in_limb)
+ limbs = bignum_common.limbs_mpi(bound_val, self.bits_in_limb)
+ byte_len = limbs * self.bits_in_limb // 8
+ self.hex_digits = 2 * byte_len
+ if self.bits_in_limb == 32:
+ self.dependencies = ["MBEDTLS_HAVE_INT32"]
+ elif self.bits_in_limb == 64:
+ self.dependencies = ["MBEDTLS_HAVE_INT64"]
+ else:
+ raise ValueError("Invalid number of bits in limb!")
+ self.arg_a = self.arg_a.zfill(self.hex_digits)
+ self.arg_b = self.arg_b.zfill(self.hex_digits)
+ self.arg_a_int = bignum_common.hex_to_int(self.arg_a)
+ self.arg_b_int = bignum_common.hex_to_int(self.arg_b)
+
+ def pad_to_limbs(self, val) -> str:
+ return "{:x}".format(val).zfill(self.hex_digits)
+
+ @classmethod
+ def generate_function_tests(cls) -> Iterator[test_case.TestCase]:
+ for a_value, b_value in cls.get_value_pairs():
+ yield cls(a_value, b_value, 32).create_test_case()
+ yield cls(a_value, b_value, 64).create_test_case()
# END MERGE SLOT 7
# BEGIN MERGE SLOT 8
