diff --git a/scripts/mbedtls_dev/test_generation.py b/scripts/mbedtls_dev/test_generation.py
new file mode 100644
index 000000000000..5de0b885c8a6
--- /dev/null
+++ b/scripts/mbedtls_dev/test_generation.py
@@ -0,0 +1,204 @@
+"""Common test generation classes and main function.
+
+These are used both by generate_psa_tests.py and generate_bignum_tests.py.
+"""
+
+# 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.
+
+import argparse
+import os
+import posixpath
+import re
+
+from abc import ABCMeta, abstractmethod
+from typing import Callable, Dict, Iterable, Iterator, List, Type, TypeVar
+
+from mbedtls_dev import test_case
+
+T = TypeVar('T') #pylint: disable=invalid-name
+
+
+class BaseTarget(metaclass=ABCMeta):
+    """Base target for test case generation.
+
+    Child classes of this class represent an output file, and can be referred
+    to as file targets. These indicate where test cases will be written to for
+    all subclasses of the file target, which is set by `target_basename`.
+
+    Attributes:
+        count: Counter for test cases from this class.
+        case_description: Short description of the test case. This may be
+            automatically generated using the class, or manually set.
+        dependencies: A list of dependencies required for the test case.
+        show_test_count: Toggle for inclusion of `count` in the test description.
+        target_basename: Basename of file to write generated tests to. This
+            should be specified in a child class of BaseTarget.
+        test_function: Test function which the class generates cases for.
+        test_name: A common name or description of the test function. This can
+            be `test_function`, a clearer equivalent, or a short summary of the
+            test function's purpose.
+    """
+    count = 0
+    case_description = ""
+    dependencies = [] # type: List[str]
+    show_test_count = True
+    target_basename = ""
+    test_function = ""
+    test_name = ""
+
+    def __new__(cls, *args, **kwargs):
+        # pylint: disable=unused-argument
+        cls.count += 1
+        return super().__new__(cls)
+
+    @abstractmethod
+    def arguments(self) -> List[str]:
+        """Get the list of arguments for the test case.
+
+        Override this method to provide the list of arguments required for
+        the `test_function`.
+
+        Returns:
+            List of arguments required for the test function.
+        """
+        raise NotImplementedError
+
+    def description(self) -> str:
+        """Create a test case description.
+
+        Creates a description of the test case, including a name for the test
+        function, an optional case count, and a description of the specific
+        test case. This should inform a reader what is being tested, and
+        provide context for the test case.
+
+        Returns:
+            Description for the test case.
+        """
+        if self.show_test_count:
+            return "{} #{} {}".format(
+                self.test_name, self.count, self.case_description
+                ).strip()
+        else:
+            return "{} {}".format(self.test_name, self.case_description).strip()
+
+
+    def create_test_case(self) -> test_case.TestCase:
+        """Generate TestCase from the instance."""
+        tc = test_case.TestCase()
+        tc.set_description(self.description())
+        tc.set_function(self.test_function)
+        tc.set_arguments(self.arguments())
+        tc.set_dependencies(self.dependencies)
+
+        return tc
+
+    @classmethod
+    @abstractmethod
+    def generate_function_tests(cls) -> Iterator[test_case.TestCase]:
+        """Generate test cases for the class test function.
+
+        This will be called in classes where `test_function` is set.
+        Implementations should yield TestCase objects, by creating instances
+        of the class with appropriate input data, and then calling
+        `create_test_case()` on each.
+        """
+        raise NotImplementedError
+
+    @classmethod
+    def generate_tests(cls) -> Iterator[test_case.TestCase]:
+        """Generate test cases for the class and its subclasses.
+
+        In classes with `test_function` set, `generate_function_tests()` is
+        called to generate test cases first.
+
+        In all classes, this method will iterate over its subclasses, and
+        yield from `generate_tests()` in each. Calling this method on a class X
+        will yield test cases from all classes derived from X.
+        """
+        if cls.test_function:
+            yield from cls.generate_function_tests()
+        for subclass in sorted(cls.__subclasses__(), key=lambda c: c.__name__):
+            yield from subclass.generate_tests()
+
+
+class TestGenerator:
+    """Generate test cases and write to data files."""
+    def __init__(self, options) -> None:
+        self.test_suite_directory = self.get_option(options, 'directory',
+                                                    'tests/suites')
+        # Update `targets` with an entry for each child class of BaseTarget.
+        # Each entry represents a file generated by the BaseTarget framework,
+        # and enables generating the .data files using the CLI.
+        self.targets.update({
+            subclass.target_basename: subclass.generate_tests
+            for subclass in BaseTarget.__subclasses__()
+        })
+
+    @staticmethod
+    def get_option(options, name: str, default: T) -> T:
+        value = getattr(options, name, None)
+        return default if value is None else value
+
+    def filename_for(self, basename: str) -> str:
+        """The location of the data file with the specified base name."""
+        return posixpath.join(self.test_suite_directory, basename + '.data')
+
+    def write_test_data_file(self, basename: str,
+                             test_cases: Iterable[test_case.TestCase]) -> None:
+        """Write the test cases to a .data file.
+
+        The output file is ``basename + '.data'`` in the test suite directory.
+        """
+        filename = self.filename_for(basename)
+        test_case.write_data_file(filename, test_cases)
+
+    # Note that targets whose names contain 'test_format' have their content
+    # validated by `abi_check.py`.
+    targets = {} # type: Dict[str, Callable[..., Iterable[test_case.TestCase]]]
+
+    def generate_target(self, name: str, *target_args) -> None:
+        """Generate cases and write to data file for a target.
+
+        For target callables which require arguments, override this function
+        and pass these arguments using super() (see PSATestGenerator).
+        """
+        test_cases = self.targets[name](*target_args)
+        self.write_test_data_file(name, test_cases)
+
+def main(args, description: str, generator_class: Type[TestGenerator] = TestGenerator):
+    """Command line entry point."""
+    parser = argparse.ArgumentParser(description=description)
+    parser.add_argument('--list', action='store_true',
+                        help='List available targets and exit')
+    parser.add_argument('targets', nargs='*', metavar='TARGET',
+                        help='Target file to generate (default: all; "-": none)')
+    options = parser.parse_args(args)
+    generator = generator_class(options)
+    if options.list:
+        for name in sorted(generator.targets):
+            print(generator.filename_for(name))
+        return
+    if options.targets:
+        # Allow "-" as a special case so you can run
+        # ``generate_xxx_tests.py - $targets`` and it works uniformly whether
+        # ``$targets`` is empty or not.
+        options.targets = [os.path.basename(re.sub(r'\.data\Z', r'', target))
+                           for target in options.targets
+                           if target != '-']
+    else:
+        options.targets = sorted(generator.targets)
+    for target in options.targets:
+        generator.generate_target(target)
diff --git a/tests/scripts/check-generated-files.sh b/tests/scripts/check-generated-files.sh
index 75730ba25483..3e5cb86c9890 100755
--- a/tests/scripts/check-generated-files.sh
+++ b/tests/scripts/check-generated-files.sh
@@ -107,4 +107,5 @@ check scripts/generate_query_config.pl programs/test/query_config.c
 check scripts/generate_features.pl library/version_features.c
 check scripts/generate_visualc_files.pl visualc/VS2010
 check scripts/generate_psa_constants.py programs/psa/psa_constant_names_generated.c
+check tests/scripts/generate_bignum_tests.py $(tests/scripts/generate_bignum_tests.py --list)
 check tests/scripts/generate_psa_tests.py $(tests/scripts/generate_psa_tests.py --list)
diff --git a/tests/scripts/generate_bignum_tests.py b/tests/scripts/generate_bignum_tests.py
new file mode 100755
index 000000000000..ceafa4a489e6
--- /dev/null
+++ b/tests/scripts/generate_bignum_tests.py
@@ -0,0 +1,238 @@
+#!/usr/bin/env python3
+"""Generate test data for bignum functions.
+
+With no arguments, generate all test data. With non-option arguments,
+generate only the specified files.
+
+Class structure:
+
+Child classes of test_generation.BaseTarget (file targets) represent an output
+file. These indicate where test cases will be written to, for all subclasses of
+this target. Multiple file targets should not reuse a `target_basename`.
+
+Each subclass derived from a file target can either be:
+  - A concrete class, representing a test function, which generates test cases.
+  - An abstract class containing shared methods and attributes, not associated
+        with a test function. An example is BignumOperation, which provides
+        common features used for bignum binary operations.
+
+Both concrete and abstract subclasses can be derived from, to implement
+additional test cases (see BignumCmp and BignumCmpAbs for examples of deriving
+from abstract and concrete classes).
+
+
+Adding test case generation for a function:
+
+A subclass representing the test function should be added, deriving from a
+file target such as BignumTarget. This test class must set/implement the
+following:
+  - test_function: the function name from the associated .function file.
+  - test_name: a descriptive name or brief summary to refer to the test
+        function.
+  - arguments(): a method to generate the list of arguments required for the
+        test_function.
+  - generate_function_test(): a method to generate TestCases for the function.
+        This should create instances of the class with required input data, and
+        call `.create_test_case()` to yield the TestCase.
+
+Additional details and other attributes/methods are given in the documentation
+of BaseTarget in test_generation.py.
+"""
+
+# 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.
+
+import itertools
+import sys
+import typing
+
+from abc import ABCMeta, abstractmethod
+from typing import Iterator, List, Tuple, TypeVar
+
+import scripts_path # pylint: disable=unused-import
+from mbedtls_dev import test_case
+from mbedtls_dev import test_generation
+
+T = TypeVar('T') #pylint: disable=invalid-name
+
+def hex_to_int(val: str) -> int:
+    return int(val, 16) if val else 0
+
+def quote_str(val) -> str:
+    return "\"{}\"".format(val)
+
+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))
+    )
+
+
+class BignumTarget(test_generation.BaseTarget, metaclass=ABCMeta):
+    #pylint: disable=abstract-method
+    """Target for bignum (mpi) test case generation."""
+    target_basename = 'test_suite_mpi.generated'
+
+
+class BignumOperation(BignumTarget, metaclass=ABCMeta):
+    """Common features for bignum binary operations.
+
+    This adds functionality common in binary operation tests. This includes
+    generation of case descriptions, using descriptions of values and symbols
+    to represent the operation or result.
+
+    Attributes:
+        symbol: Symbol used for the operation in case description.
+        input_values: List of values to use as test case inputs. These are
+            combined to produce pairs of values.
+        input_cases: List of tuples containing pairs of test case inputs. This
+            can be used to implement specific pairs of inputs.
+    """
+    symbol = ""
+    input_values = [
+        "", "0", "7b", "-7b",
+        "0000000000000000123", "-0000000000000000123",
+        "1230000000000000000", "-1230000000000000000"
+    ] # type: List[str]
+    input_cases = [] # type: List[Tuple[str, str]]
+
+    def __init__(self, val_a: str, val_b: str) -> None:
+        self.arg_a = val_a
+        self.arg_b = val_b
+        self.int_a = hex_to_int(val_a)
+        self.int_b = hex_to_int(val_b)
+
+    def arguments(self) -> List[str]:
+        return [quote_str(self.arg_a), quote_str(self.arg_b), self.result()]
+
+    def description(self) -> str:
+        """Generate a description for the test case.
+
+        If not set, case_description uses the form A `symbol` B, where symbol
+        is used to represent the operation. Descriptions of each value are
+        generated to provide some context to the test case.
+        """
+        if not self.case_description:
+            self.case_description = "{} {} {}".format(
+                self.value_description(self.arg_a),
+                self.symbol,
+                self.value_description(self.arg_b)
+            )
+        return super().description()
+
+    @abstractmethod
+    def result(self) -> str:
+        """Get the result of the operation.
+
+        This could be calculated during initialization and stored as `_result`
+        and then returned, or calculated when the method is called.
+        """
+        raise NotImplementedError
+
+    @staticmethod
+    def value_description(val) -> str:
+        """Generate a description of the argument val.
+
+        This produces a simple description of the value, which is used in test
+        case naming to add context.
+        """
+        if val == "":
+            return "0 (null)"
+        if val == "0":
+            return "0 (1 limb)"
+
+        if val[0] == "-":
+            tmp = "negative"
+            val = val[1:]
+        else:
+            tmp = "positive"
+        if val[0] == "0":
+            tmp += " with leading zero limb"
+        elif len(val) > 10:
+            tmp = "large " + tmp
+        return tmp
+
+    @classmethod
+    def get_value_pairs(cls) -> Iterator[Tuple[str, str]]:
+        """Generator to yield pairs of inputs.
+
+        Combinations are first generated from all input values, and then
+        specific cases provided.
+        """
+        yield from combination_pairs(cls.input_values)
+        yield from cls.input_cases
+
+    @classmethod
+    def generate_function_tests(cls) -> Iterator[test_case.TestCase]:
+        for a_value, b_value in cls.get_value_pairs():
+            cur_op = cls(a_value, b_value)
+            yield cur_op.create_test_case()
+
+
+class BignumCmp(BignumOperation):
+    """Test cases for bignum value comparison."""
+    count = 0
+    test_function = "mbedtls_mpi_cmp_mpi"
+    test_name = "MPI compare"
+    input_cases = [
+        ("-2", "-3"),
+        ("-2", "-2"),
+        ("2b4", "2b5"),
+        ("2b5", "2b6")
+        ]
+
+    def __init__(self, val_a, val_b) -> None:
+        super().__init__(val_a, val_b)
+        self._result = int(self.int_a > self.int_b) - int(self.int_a < self.int_b)
+        self.symbol = ["<", "==", ">"][self._result + 1]
+
+    def result(self) -> str:
+        return str(self._result)
+
+
+class BignumCmpAbs(BignumCmp):
+    """Test cases for absolute bignum value comparison."""
+    count = 0
+    test_function = "mbedtls_mpi_cmp_abs"
+    test_name = "MPI compare (abs)"
+
+    def __init__(self, val_a, val_b) -> None:
+        super().__init__(val_a.strip("-"), val_b.strip("-"))
+
+
+class BignumAdd(BignumOperation):
+    """Test cases for bignum value addition."""
+    count = 0
+    symbol = "+"
+    test_function = "mbedtls_mpi_add_mpi"
+    test_name = "MPI add"
+    input_cases = combination_pairs(
+        [
+            "1c67967269c6", "9cde3",
+            "-1c67967269c6", "-9cde3",
+        ]
+    )
+
+    def result(self) -> str:
+        return quote_str("{:x}".format(self.int_a + self.int_b))
+
+if __name__ == '__main__':
+    # Use the section of the docstring relevant to the CLI as description
+    test_generation.main(sys.argv[1:], "\n".join(__doc__.splitlines()[:4]))
diff --git a/tests/scripts/generate_psa_tests.py b/tests/scripts/generate_psa_tests.py
index 33c1fc3d1c99..867a6b459453 100755
--- a/tests/scripts/generate_psa_tests.py
+++ b/tests/scripts/generate_psa_tests.py
@@ -20,20 +20,17 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import argparse
 import enum
-import os
 import re
 import sys
-from typing import Callable, Dict, FrozenSet, Iterable, Iterator, List, Optional, TypeVar
+from typing import Callable, Dict, FrozenSet, Iterable, Iterator, List, Optional
 
 import scripts_path # pylint: disable=unused-import
 from mbedtls_dev import crypto_knowledge
 from mbedtls_dev import macro_collector
 from mbedtls_dev import psa_storage
 from mbedtls_dev import test_case
-
-T = TypeVar('T') #pylint: disable=invalid-name
+from mbedtls_dev import test_generation
 
 
 def psa_want_symbol(name: str) -> str:
@@ -897,35 +894,11 @@ def generate_all_keys(self) -> Iterator[StorageTestData]:
         yield from super().generate_all_keys()
         yield from self.all_keys_for_implicit_usage()
 
-class TestGenerator:
-    """Generate test data."""
-
-    def __init__(self, options) -> None:
-        self.test_suite_directory = self.get_option(options, 'directory',
-                                                    'tests/suites')
-        self.info = Information()
-
-    @staticmethod
-    def get_option(options, name: str, default: T) -> T:
-        value = getattr(options, name, None)
-        return default if value is None else value
-
-    def filename_for(self, basename: str) -> str:
-        """The location of the data file with the specified base name."""
-        return os.path.join(self.test_suite_directory, basename + '.data')
-
-    def write_test_data_file(self, basename: str,
-                             test_cases: Iterable[test_case.TestCase]) -> None:
-        """Write the test cases to a .data file.
-
-        The output file is ``basename + '.data'`` in the test suite directory.
-        """
-        filename = self.filename_for(basename)
-        test_case.write_data_file(filename, test_cases)
-
+class PSATestGenerator(test_generation.TestGenerator):
+    """Test generator subclass including PSA targets and info."""
     # Note that targets whose names contain 'test_format' have their content
     # validated by `abi_check.py`.
-    TARGETS = {
+    targets = {
         'test_suite_psa_crypto_generate_key.generated':
         lambda info: KeyGenerate(info).test_cases_for_key_generation(),
         'test_suite_psa_crypto_not_supported.generated':
@@ -938,34 +911,12 @@ def write_test_data_file(self, basename: str,
         lambda info: StorageFormatV0(info).all_test_cases(),
     } #type: Dict[str, Callable[[Information], Iterable[test_case.TestCase]]]
 
-    def generate_target(self, name: str) -> None:
-        test_cases = self.TARGETS[name](self.info)
-        self.write_test_data_file(name, test_cases)
-
-def main(args):
-    """Command line entry point."""
-    parser = argparse.ArgumentParser(description=__doc__)
-    parser.add_argument('--list', action='store_true',
-                        help='List available targets and exit')
-    parser.add_argument('targets', nargs='*', metavar='TARGET',
-                        help='Target file to generate (default: all; "-": none)')
-    options = parser.parse_args(args)
-    generator = TestGenerator(options)
-    if options.list:
-        for name in sorted(generator.TARGETS):
-            print(generator.filename_for(name))
-        return
-    if options.targets:
-        # Allow "-" as a special case so you can run
-        # ``generate_psa_tests.py - $targets`` and it works uniformly whether
-        # ``$targets`` is empty or not.
-        options.targets = [os.path.basename(re.sub(r'\.data\Z', r'', target))
-                           for target in options.targets
-                           if target != '-']
-    else:
-        options.targets = sorted(generator.TARGETS)
-    for target in options.targets:
-        generator.generate_target(target)
+    def __init__(self, options):
+        super().__init__(options)
+        self.info = Information()
+
+    def generate_target(self, name: str, *target_args) -> None:
+        super().generate_target(name, self.info)
 
 if __name__ == '__main__':
-    main(sys.argv[1:])
+    test_generation.main(sys.argv[1:], __doc__, PSATestGenerator)
diff --git a/tests/suites/test_suite_mpi.generated.data b/tests/suites/test_suite_mpi.generated.data
new file mode 100644
index 000000000000..947d06f7fb41
--- /dev/null
+++ b/tests/suites/test_suite_mpi.generated.data
@@ -0,0 +1,381 @@
+# Automatically generated by generate_bignum_tests.py. Do not edit!
+
+MPI add #1 0 (null) + 0 (null)
+mbedtls_mpi_add_mpi:"":"":"0"
+
+MPI add #2 0 (null) + 0 (1 limb)
+mbedtls_mpi_add_mpi:"":"0":"0"
+
+MPI add #3 0 (null) + positive
+mbedtls_mpi_add_mpi:"":"7b":"7b"
+
+MPI add #4 0 (null) + negative
+mbedtls_mpi_add_mpi:"":"-7b":"-7b"
+
+MPI add #5 0 (null) + positive with leading zero limb
+mbedtls_mpi_add_mpi:"":"0000000000000000123":"123"
+
+MPI add #6 0 (null) + negative with leading zero limb
+mbedtls_mpi_add_mpi:"":"-0000000000000000123":"-123"
+
+MPI add #7 0 (null) + large positive
+mbedtls_mpi_add_mpi:"":"1230000000000000000":"1230000000000000000"
+
+MPI add #8 0 (null) + large negative
+mbedtls_mpi_add_mpi:"":"-1230000000000000000":"-1230000000000000000"
+
+MPI add #9 0 (1 limb) + 0 (1 limb)
+mbedtls_mpi_add_mpi:"0":"0":"0"
+
+MPI add #10 0 (1 limb) + positive
+mbedtls_mpi_add_mpi:"0":"7b":"7b"
+
+MPI add #11 0 (1 limb) + negative
+mbedtls_mpi_add_mpi:"0":"-7b":"-7b"
+
+MPI add #12 0 (1 limb) + positive with leading zero limb
+mbedtls_mpi_add_mpi:"0":"0000000000000000123":"123"
+
+MPI add #13 0 (1 limb) + negative with leading zero limb
+mbedtls_mpi_add_mpi:"0":"-0000000000000000123":"-123"
+
+MPI add #14 0 (1 limb) + large positive
+mbedtls_mpi_add_mpi:"0":"1230000000000000000":"1230000000000000000"
+
+MPI add #15 0 (1 limb) + large negative
+mbedtls_mpi_add_mpi:"0":"-1230000000000000000":"-1230000000000000000"
+
+MPI add #16 positive + positive
+mbedtls_mpi_add_mpi:"7b":"7b":"f6"
+
+MPI add #17 positive + negative
+mbedtls_mpi_add_mpi:"7b":"-7b":"0"
+
+MPI add #18 positive + positive with leading zero limb
+mbedtls_mpi_add_mpi:"7b":"0000000000000000123":"19e"
+
+MPI add #19 positive + negative with leading zero limb
+mbedtls_mpi_add_mpi:"7b":"-0000000000000000123":"-a8"
+
+MPI add #20 positive + large positive
+mbedtls_mpi_add_mpi:"7b":"1230000000000000000":"123000000000000007b"
+
+MPI add #21 positive + large negative
+mbedtls_mpi_add_mpi:"7b":"-1230000000000000000":"-122ffffffffffffff85"
+
+MPI add #22 negative + negative
+mbedtls_mpi_add_mpi:"-7b":"-7b":"-f6"
+
+MPI add #23 negative + positive with leading zero limb
+mbedtls_mpi_add_mpi:"-7b":"0000000000000000123":"a8"
+
+MPI add #24 negative + negative with leading zero limb
+mbedtls_mpi_add_mpi:"-7b":"-0000000000000000123":"-19e"
+
+MPI add #25 negative + large positive
+mbedtls_mpi_add_mpi:"-7b":"1230000000000000000":"122ffffffffffffff85"
+
+MPI add #26 negative + large negative
+mbedtls_mpi_add_mpi:"-7b":"-1230000000000000000":"-123000000000000007b"
+
+MPI add #27 positive with leading zero limb + positive with leading zero limb
+mbedtls_mpi_add_mpi:"0000000000000000123":"0000000000000000123":"246"
+
+MPI add #28 positive with leading zero limb + negative with leading zero limb
+mbedtls_mpi_add_mpi:"0000000000000000123":"-0000000000000000123":"0"
+
+MPI add #29 positive with leading zero limb + large positive
+mbedtls_mpi_add_mpi:"0000000000000000123":"1230000000000000000":"1230000000000000123"
+
+MPI add #30 positive with leading zero limb + large negative
+mbedtls_mpi_add_mpi:"0000000000000000123":"-1230000000000000000":"-122fffffffffffffedd"
+
+MPI add #31 negative with leading zero limb + negative with leading zero limb
+mbedtls_mpi_add_mpi:"-0000000000000000123":"-0000000000000000123":"-246"
+
+MPI add #32 negative with leading zero limb + large positive
+mbedtls_mpi_add_mpi:"-0000000000000000123":"1230000000000000000":"122fffffffffffffedd"
+
+MPI add #33 negative with leading zero limb + large negative
+mbedtls_mpi_add_mpi:"-0000000000000000123":"-1230000000000000000":"-1230000000000000123"
+
+MPI add #34 large positive + large positive
+mbedtls_mpi_add_mpi:"1230000000000000000":"1230000000000000000":"2460000000000000000"
+
+MPI add #35 large positive + large negative
+mbedtls_mpi_add_mpi:"1230000000000000000":"-1230000000000000000":"0"
+
+MPI add #36 large negative + large negative
+mbedtls_mpi_add_mpi:"-1230000000000000000":"-1230000000000000000":"-2460000000000000000"
+
+MPI add #37 large positive + large positive
+mbedtls_mpi_add_mpi:"1c67967269c6":"1c67967269c6":"38cf2ce4d38c"
+
+MPI add #38 large positive + positive
+mbedtls_mpi_add_mpi:"1c67967269c6":"9cde3":"1c67967c37a9"
+
+MPI add #39 large positive + large negative
+mbedtls_mpi_add_mpi:"1c67967269c6":"-1c67967269c6":"0"
+
+MPI add #40 large positive + negative
+mbedtls_mpi_add_mpi:"1c67967269c6":"-9cde3":"1c6796689be3"
+
+MPI add #41 positive + positive
+mbedtls_mpi_add_mpi:"9cde3":"9cde3":"139bc6"
+
+MPI add #42 positive + large negative
+mbedtls_mpi_add_mpi:"9cde3":"-1c67967269c6":"-1c6796689be3"
+
+MPI add #43 positive + negative
+mbedtls_mpi_add_mpi:"9cde3":"-9cde3":"0"
+
+MPI add #44 large negative + large negative
+mbedtls_mpi_add_mpi:"-1c67967269c6":"-1c67967269c6":"-38cf2ce4d38c"
+
+MPI add #45 large negative + negative
+mbedtls_mpi_add_mpi:"-1c67967269c6":"-9cde3":"-1c67967c37a9"
+
+MPI add #46 negative + negative
+mbedtls_mpi_add_mpi:"-9cde3":"-9cde3":"-139bc6"
+
+MPI compare #1 0 (null) == 0 (null)
+mbedtls_mpi_cmp_mpi:"":"":0
+
+MPI compare #2 0 (null) == 0 (1 limb)
+mbedtls_mpi_cmp_mpi:"":"0":0
+
+MPI compare #3 0 (null) < positive
+mbedtls_mpi_cmp_mpi:"":"7b":-1
+
+MPI compare #4 0 (null) > negative
+mbedtls_mpi_cmp_mpi:"":"-7b":1
+
+MPI compare #5 0 (null) < positive with leading zero limb
+mbedtls_mpi_cmp_mpi:"":"0000000000000000123":-1
+
+MPI compare #6 0 (null) > negative with leading zero limb
+mbedtls_mpi_cmp_mpi:"":"-0000000000000000123":1
+
+MPI compare #7 0 (null) < large positive
+mbedtls_mpi_cmp_mpi:"":"1230000000000000000":-1
+
+MPI compare #8 0 (null) > large negative
+mbedtls_mpi_cmp_mpi:"":"-1230000000000000000":1
+
+MPI compare #9 0 (1 limb) == 0 (1 limb)
+mbedtls_mpi_cmp_mpi:"0":"0":0
+
+MPI compare #10 0 (1 limb) < positive
+mbedtls_mpi_cmp_mpi:"0":"7b":-1
+
+MPI compare #11 0 (1 limb) > negative
+mbedtls_mpi_cmp_mpi:"0":"-7b":1
+
+MPI compare #12 0 (1 limb) < positive with leading zero limb
+mbedtls_mpi_cmp_mpi:"0":"0000000000000000123":-1
+
+MPI compare #13 0 (1 limb) > negative with leading zero limb
+mbedtls_mpi_cmp_mpi:"0":"-0000000000000000123":1
+
+MPI compare #14 0 (1 limb) < large positive
+mbedtls_mpi_cmp_mpi:"0":"1230000000000000000":-1
+
+MPI compare #15 0 (1 limb) > large negative
+mbedtls_mpi_cmp_mpi:"0":"-1230000000000000000":1
+
+MPI compare #16 positive == positive
+mbedtls_mpi_cmp_mpi:"7b":"7b":0
+
+MPI compare #17 positive > negative
+mbedtls_mpi_cmp_mpi:"7b":"-7b":1
+
+MPI compare #18 positive < positive with leading zero limb
+mbedtls_mpi_cmp_mpi:"7b":"0000000000000000123":-1
+
+MPI compare #19 positive > negative with leading zero limb
+mbedtls_mpi_cmp_mpi:"7b":"-0000000000000000123":1
+
+MPI compare #20 positive < large positive
+mbedtls_mpi_cmp_mpi:"7b":"1230000000000000000":-1
+
+MPI compare #21 positive > large negative
+mbedtls_mpi_cmp_mpi:"7b":"-1230000000000000000":1
+
+MPI compare #22 negative == negative
+mbedtls_mpi_cmp_mpi:"-7b":"-7b":0
+
+MPI compare #23 negative < positive with leading zero limb
+mbedtls_mpi_cmp_mpi:"-7b":"0000000000000000123":-1
+
+MPI compare #24 negative > negative with leading zero limb
+mbedtls_mpi_cmp_mpi:"-7b":"-0000000000000000123":1
+
+MPI compare #25 negative < large positive
+mbedtls_mpi_cmp_mpi:"-7b":"1230000000000000000":-1
+
+MPI compare #26 negative > large negative
+mbedtls_mpi_cmp_mpi:"-7b":"-1230000000000000000":1
+
+MPI compare #27 positive with leading zero limb == positive with leading zero limb
+mbedtls_mpi_cmp_mpi:"0000000000000000123":"0000000000000000123":0
+
+MPI compare #28 positive with leading zero limb > negative with leading zero limb
+mbedtls_mpi_cmp_mpi:"0000000000000000123":"-0000000000000000123":1
+
+MPI compare #29 positive with leading zero limb < large positive
+mbedtls_mpi_cmp_mpi:"0000000000000000123":"1230000000000000000":-1
+
+MPI compare #30 positive with leading zero limb > large negative
+mbedtls_mpi_cmp_mpi:"0000000000000000123":"-1230000000000000000":1
+
+MPI compare #31 negative with leading zero limb == negative with leading zero limb
+mbedtls_mpi_cmp_mpi:"-0000000000000000123":"-0000000000000000123":0
+
+MPI compare #32 negative with leading zero limb < large positive
+mbedtls_mpi_cmp_mpi:"-0000000000000000123":"1230000000000000000":-1
+
+MPI compare #33 negative with leading zero limb > large negative
+mbedtls_mpi_cmp_mpi:"-0000000000000000123":"-1230000000000000000":1
+
+MPI compare #34 large positive == large positive
+mbedtls_mpi_cmp_mpi:"1230000000000000000":"1230000000000000000":0
+
+MPI compare #35 large positive > large negative
+mbedtls_mpi_cmp_mpi:"1230000000000000000":"-1230000000000000000":1
+
+MPI compare #36 large negative == large negative
+mbedtls_mpi_cmp_mpi:"-1230000000000000000":"-1230000000000000000":0
+
+MPI compare #37 negative > negative
+mbedtls_mpi_cmp_mpi:"-2":"-3":1
+
+MPI compare #38 negative == negative
+mbedtls_mpi_cmp_mpi:"-2":"-2":0
+
+MPI compare #39 positive < positive
+mbedtls_mpi_cmp_mpi:"2b4":"2b5":-1
+
+MPI compare #40 positive < positive
+mbedtls_mpi_cmp_mpi:"2b5":"2b6":-1
+
+MPI compare (abs) #1 0 (null) == 0 (null)
+mbedtls_mpi_cmp_abs:"":"":0
+
+MPI compare (abs) #2 0 (null) == 0 (1 limb)
+mbedtls_mpi_cmp_abs:"":"0":0
+
+MPI compare (abs) #3 0 (null) < positive
+mbedtls_mpi_cmp_abs:"":"7b":-1
+
+MPI compare (abs) #4 0 (null) < positive
+mbedtls_mpi_cmp_abs:"":"7b":-1
+
+MPI compare (abs) #5 0 (null) < positive with leading zero limb
+mbedtls_mpi_cmp_abs:"":"0000000000000000123":-1
+
+MPI compare (abs) #6 0 (null) < positive with leading zero limb
+mbedtls_mpi_cmp_abs:"":"0000000000000000123":-1
+
+MPI compare (abs) #7 0 (null) < large positive
+mbedtls_mpi_cmp_abs:"":"1230000000000000000":-1
+
+MPI compare (abs) #8 0 (null) < large positive
+mbedtls_mpi_cmp_abs:"":"1230000000000000000":-1
+
+MPI compare (abs) #9 0 (1 limb) == 0 (1 limb)
+mbedtls_mpi_cmp_abs:"0":"0":0
+
+MPI compare (abs) #10 0 (1 limb) < positive
+mbedtls_mpi_cmp_abs:"0":"7b":-1
+
+MPI compare (abs) #11 0 (1 limb) < positive
+mbedtls_mpi_cmp_abs:"0":"7b":-1
+
+MPI compare (abs) #12 0 (1 limb) < positive with leading zero limb
+mbedtls_mpi_cmp_abs:"0":"0000000000000000123":-1
+
+MPI compare (abs) #13 0 (1 limb) < positive with leading zero limb
+mbedtls_mpi_cmp_abs:"0":"0000000000000000123":-1
+
+MPI compare (abs) #14 0 (1 limb) < large positive
+mbedtls_mpi_cmp_abs:"0":"1230000000000000000":-1
+
+MPI compare (abs) #15 0 (1 limb) < large positive
+mbedtls_mpi_cmp_abs:"0":"1230000000000000000":-1
+
+MPI compare (abs) #16 positive == positive
+mbedtls_mpi_cmp_abs:"7b":"7b":0
+
+MPI compare (abs) #17 positive == positive
+mbedtls_mpi_cmp_abs:"7b":"7b":0
+
+MPI compare (abs) #18 positive < positive with leading zero limb
+mbedtls_mpi_cmp_abs:"7b":"0000000000000000123":-1
+
+MPI compare (abs) #19 positive < positive with leading zero limb
+mbedtls_mpi_cmp_abs:"7b":"0000000000000000123":-1
+
+MPI compare (abs) #20 positive < large positive
+mbedtls_mpi_cmp_abs:"7b":"1230000000000000000":-1
+
+MPI compare (abs) #21 positive < large positive
+mbedtls_mpi_cmp_abs:"7b":"1230000000000000000":-1
+
+MPI compare (abs) #22 positive == positive
+mbedtls_mpi_cmp_abs:"7b":"7b":0
+
+MPI compare (abs) #23 positive < positive with leading zero limb
+mbedtls_mpi_cmp_abs:"7b":"0000000000000000123":-1
+
+MPI compare (abs) #24 positive < positive with leading zero limb
+mbedtls_mpi_cmp_abs:"7b":"0000000000000000123":-1
+
+MPI compare (abs) #25 positive < large positive
+mbedtls_mpi_cmp_abs:"7b":"1230000000000000000":-1
+
+MPI compare (abs) #26 positive < large positive
+mbedtls_mpi_cmp_abs:"7b":"1230000000000000000":-1
+
+MPI compare (abs) #27 positive with leading zero limb == positive with leading zero limb
+mbedtls_mpi_cmp_abs:"0000000000000000123":"0000000000000000123":0
+
+MPI compare (abs) #28 positive with leading zero limb == positive with leading zero limb
+mbedtls_mpi_cmp_abs:"0000000000000000123":"0000000000000000123":0
+
+MPI compare (abs) #29 positive with leading zero limb < large positive
+mbedtls_mpi_cmp_abs:"0000000000000000123":"1230000000000000000":-1
+
+MPI compare (abs) #30 positive with leading zero limb < large positive
+mbedtls_mpi_cmp_abs:"0000000000000000123":"1230000000000000000":-1
+
+MPI compare (abs) #31 positive with leading zero limb == positive with leading zero limb
+mbedtls_mpi_cmp_abs:"0000000000000000123":"0000000000000000123":0
+
+MPI compare (abs) #32 positive with leading zero limb < large positive
+mbedtls_mpi_cmp_abs:"0000000000000000123":"1230000000000000000":-1
+
+MPI compare (abs) #33 positive with leading zero limb < large positive
+mbedtls_mpi_cmp_abs:"0000000000000000123":"1230000000000000000":-1
+
+MPI compare (abs) #34 large positive == large positive
+mbedtls_mpi_cmp_abs:"1230000000000000000":"1230000000000000000":0
+
+MPI compare (abs) #35 large positive == large positive
+mbedtls_mpi_cmp_abs:"1230000000000000000":"1230000000000000000":0
+
+MPI compare (abs) #36 large positive == large positive
+mbedtls_mpi_cmp_abs:"1230000000000000000":"1230000000000000000":0
+
+MPI compare (abs) #37 positive < positive
+mbedtls_mpi_cmp_abs:"2":"3":-1
+
+MPI compare (abs) #38 positive == positive
+mbedtls_mpi_cmp_abs:"2":"2":0
+
+MPI compare (abs) #39 positive < positive
+mbedtls_mpi_cmp_abs:"2b4":"2b5":-1
+
+MPI compare (abs) #40 positive < positive
+mbedtls_mpi_cmp_abs:"2b5":"2b6":-1
+
+# End of automatically generated file.