mbedtls/scripts/mbedtls_dev/bignum_mod_raw.py
Janos Follath 0cd8967ba1 Split test generator base class
The class BaseTarget served two purposes:
- track test cases and target files for generation
- provide an abstract base class for individual test groups

Splitting these allows decoupling these two and to have further common
superclasses across targets.

No intended change in generated test cases.

Signed-off-by: Janos Follath <janos.follath@arm.com>
2022-11-21 08:56:13 +00:00

257 lines
9.7 KiB
Python

"""Framework classes for generation of bignum mod_raw test cases."""
# Copyright The Mbed TLS Contributors
# SPDX-License-Identifier: Apache-2.0
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# 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):
#pylint: disable=abstract-method, too-few-public-methods
"""Target for bignum mod_raw test case generation."""
target_basename = 'test_suite_bignum_mod_raw.generated'
class BignumModRawOperation(bignum_common.OperationCommon, BignumModRawTarget, metaclass=ABCMeta):
#pylint: disable=abstract-method
"""Target for bignum mod_raw test case generation."""
def __init__(self, val_n: str, val_a: str, val_b: str = "0", bits_in_limb: int = 64) -> None:
super().__init__(val_a=val_a, val_b=val_b)
self.val_n = val_n
self.bits_in_limb = bits_in_limb
@property
def int_n(self) -> int:
return bignum_common.hex_to_int(self.val_n)
@property
def boundary(self) -> int:
data_in = [self.int_a, self.int_b, self.int_n]
return max([n for n in data_in if n is not None])
@property
def limbs(self) -> int:
return bignum_common.limbs_mpi(self.boundary, self.bits_in_limb)
@property
def hex_digits(self) -> int:
return 2 * (self.limbs * self.bits_in_limb // 8)
@property
def hex_n(self) -> str:
return "{:x}".format(self.int_n).zfill(self.hex_digits)
@property
def hex_a(self) -> str:
return "{:x}".format(self.int_a).zfill(self.hex_digits)
@property
def hex_b(self) -> str:
return "{:x}".format(self.int_b).zfill(self.hex_digits)
@property
def r(self) -> int: # pylint: disable=invalid-name
l = bignum_common.limbs_mpi(self.int_n, self.bits_in_limb)
return bignum_common.bound_mpi_limbs(l, self.bits_in_limb)
@property
def r_inv(self) -> int:
return bignum_common.invmod(self.r, self.int_n)
@property
def r2(self) -> int: # pylint: disable=invalid-name
return pow(self.r, 2)
class BignumModRawOperationArchSplit(BignumModRawOperation):
#pylint: disable=abstract-method
"""Common features for bignum mod raw operations where the result depends on
the limb size."""
limb_sizes = [32, 64] # type: List[int]
def __init__(self, val_n: str, val_a: str, val_b: str = "0", bits_in_limb: int = 64) -> None:
super().__init__(val_n=val_n, val_a=val_a, val_b=val_b, bits_in_limb=bits_in_limb)
if bits_in_limb not in self.limb_sizes:
raise ValueError("Invalid number of bits in limb!")
self.dependencies = ["MBEDTLS_HAVE_INT{:d}".format(bits_in_limb)]
@classmethod
def generate_function_tests(cls) -> Iterator[test_case.TestCase]:
for a_value, b_value in cls.get_value_pairs():
for bil in cls.limb_sizes:
yield cls(a_value, b_value, bits_in_limb=bil).create_test_case()
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class BignumModRawConvertToMont(BignumModRawOperationArchSplit):
""" Test cases for mpi_mod_raw_to_mont_rep(). """
test_function = "mpi_mod_raw_to_mont_rep"
test_name = "Convert into Mont: "
test_data_moduli = ["b",
"fd",
"eeff99aa37",
"eeff99aa11",
"800000000005",
"7fffffffffffffff",
"80fe000a10000001",
"25a55a46e5da99c71c7",
"1058ad82120c3a10196bb36229c1",
"7e35b84cb19ea5bc57ec37f5e431462fa962d98c1e63738d4657f"
"18ad6532e6adc3eafe67f1e5fa262af94cee8d3e7268593942a2a"
"98df75154f8c914a282f8b",
"8335616aed761f1f7f44e6bd49e807b82e3bf2bf11bfa63",
"ffcece570f2f991013f26dd5b03c4c5b65f97be5905f36cb4664f"
"2c78ff80aa8135a4aaf57ccb8a0aca2f394909a74cef1ef6758a6"
"4d11e2c149c393659d124bfc94196f0ce88f7d7d567efa5a649e2"
"deefaa6e10fdc3deac60d606bf63fc540ac95294347031aefd73d"
"6a9ee10188aaeb7a90d920894553cb196881691cadc51808715a0"
"7e8b24fcb1a63df047c7cdf084dd177ba368c806f3d51ddb5d389"
"8c863e687ecaf7d649a57a46264a582f94d3c8f2edaf59f77a7f6"
"bdaf83c991e8f06abe220ec8507386fce8c3da84c6c3903ab8f3a"
"d4630a204196a7dbcbd9bcca4e40ec5cc5c09938d49f5e1e6181d"
"b8896f33bb12e6ef73f12ec5c5ea7a8a337"
]
test_input_numbers = ["0",
"1",
"97",
"f5",
"6f5c3",
"745bfe50f7",
"ffa1f9924123",
"334a8b983c79bd",
"5b84f632b58f3461",
"19acd15bc38008e1",
"ffffffffffffffff",
"54ce6a6bb8247fa0427cfc75a6b0599",
"fecafe8eca052f154ce6a6bb8247fa019558bfeecce9bb9",
"a87d7a56fa4bfdc7da42ef798b9cf6843d4c54794698cb14d72"
"851dec9586a319f4bb6d5695acbd7c92e7a42a5ede6972adcbc"
"f68425265887f2d721f462b7f1b91531bac29fa648facb8e3c6"
"1bd5ae42d5a59ba1c89a95897bfe541a8ce1d633b98f379c481"
"6f25e21f6ac49286b261adb4b78274fe5f61c187581f213e84b"
"2a821e341ef956ecd5de89e6c1a35418cd74a549379d2d4594a"
"577543147f8e35b3514e62cf3e89d1156cdc91ab5f4c928fbd6"
"9148c35df5962fed381f4d8a62852a36823d5425f7487c13a12"
"523473fb823aa9d6ea5f42e794e15f2c1a8785cf6b7d51a4617"
"947fb3baf674f74a673cf1d38126983a19ed52c7439fab42c2185"
]
descr_tpl = '{} #{} N: \"{}\" A: \"{}\".'
def result(self) -> List[str]:
return [self.hex_x]
def arguments(self) -> List[str]:
return [bignum_common.quote_str(n) for n in [self.hex_n,
self.hex_a,
self.hex_x]]
def description(self) -> str:
return self.descr_tpl.format(self.test_name,
self.count,
self.int_n,
self.int_a)
@classmethod
def generate_function_tests(cls) -> Iterator[test_case.TestCase]:
for bil in [32, 64]:
for n in cls.test_data_moduli:
for i in cls.test_input_numbers:
# Skip invalid combinations where A.limbs > N.limbs
if bignum_common.hex_to_int(i) > bignum_common.hex_to_int(n):
continue
yield cls(n, i, bits_in_limb=bil).create_test_case()
@property
def x(self) -> int: # pylint: disable=invalid-name
return (self.int_a * self.r) % self.int_n
@property
def hex_x(self) -> str:
return "{:x}".format(self.x).zfill(self.hex_digits)
class BignumModRawConvertFromMont(BignumModRawConvertToMont):
""" Test cases for mpi_mod_raw_from_mont_rep(). """
test_function = "mpi_mod_raw_from_mont_rep"
test_name = "Convert from Mont: "
test_input_numbers = ["0",
"1",
"3ca",
"539ed428",
"7dfe5c6beb35a2d6",
"dca8de1c2adfc6d7aafb9b48e",
"a7d17b6c4be72f3d5c16bf9c1af6fc933",
"2fec97beec546f9553142ed52f147845463f579",
"378dc83b8bc5a7b62cba495af4919578dce6d4f175cadc4f",
"b6415f2a1a8e48a518345db11f56db3829c8f2c6415ab4a395a"
"b3ac2ea4cbef4af86eb18a84eb6ded4c6ecbfc4b59c2879a675"
"487f687adea9d197a84a5242a5cf6125ce19a6ad2e7341f1c57"
"d43ea4f4c852a51cb63dabcd1c9de2b827a3146a3d175b35bea"
"41ae75d2a286a3e9d43623152ac513dcdea1d72a7da846a8ab3"
"58d9be4926c79cfb287cf1cf25b689de3b912176be5dcaf4d4c"
"6e7cb839a4a3243a6c47c1e2c99d65c59d6fa3672575c2f1ca8"
"de6a32e854ec9d8ec635c96af7679fce26d7d159e4a9da3bd74"
"e1272c376cd926d74fe3fb164a5935cff3d5cdb92b35fe2cea32"
"138a7e6bfbc319ebd1725dacb9a359cbf693f2ecb785efb9d627"
]
@property
def x(self): # pylint: disable=invalid-name
return (self.int_a * self.r_inv) % self.int_n
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