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For binary operations, test both x op y and y op x

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This exposes a bug in mbedtls_mpi_add_mpi() and mbedtls_mpi_sub_mpi() which
will be fixed in a subsequent commit.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
This commit is contained in:
Gilles Peskine 2022-11-09 21:57:52 +01:00
parent 128895775d
commit 4cbbfd8d4e
1 changed files with 2 additions and 9 deletions
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11
scripts/mbedtls_dev/bignum_common.py
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@ -57,15 +57,8 @@ def limbs_mpi(val: int, bits_in_limb: int) -> int:
return (val.bit_length() + bits_in_limb - 1) // bits_in_limb
def combination_pairs(values: List[T]) -> List[Tuple[T, T]]:
"""Return all pair combinations from input values.
The return value is cast, as older versions of mypy are unable to derive
the specific type returned by itertools.combinations_with_replacement.
"""
return typing.cast(
List[Tuple[T, T]],
list(itertools.combinations_with_replacement(values, 2))
)
"""Return all pair combinations from input values."""
return [(x, y) for x in values for y in values]
class OperationCommon: