Signed-off-by: Valerio Setti <vsetti@baylibre.com>

Signed-off-by: Valerio Setti <vsetti@baylibre.com>

Some PSA curves' symbols (PSA_WANT_) were not matching the corresponding
MBEDTLS_ECP_DP_. This was fixed together with the removal of extra code
when DEBUG_C is not enabled.

Signed-off-by: Valerio Setti <vsetti@baylibre.com>

Signed-off-by: Valerio Setti <vsetti@baylibre.com>

Signed-off-by: Valerio Setti <vsetti@baylibre.com>

Signed-off-by: Valerio Setti <vsetti@baylibre.com>

Signed-off-by: Valerio Setti <vsetti@baylibre.com>

lms: Move merkle tree generation to heap allocation

Tweak code style to be more like K&R

Bignum: Implement fixed width modular multiplication

Bignum mod random

Align with K&R2.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>

mbedtls_ecp_point_read_binary from compressed fmt

Only remove the MBEDTLS_HAVE_INTnn dependency, not any other dependency that
might be present.

No behavior change, this is just robustness.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>

Explain what's going on in BignumModRawConvertRep.test_case_for_values.

Simplify the logic and the interdependencies related to limb sizes:
* Montgomery is the special case, so base the decisions on it.
* As soon as we've encountered one limb size, no matter what it is,
  give up.

No behavior change, other than changing the numbering of test cases (which
previously included more skipped test cases).

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>

Except for missing documentation, which will come in a subsequent commit.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>

Pylint complains about the nesting. It's not wrong.

No behavior change.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>

This patch introduces a hybrid approach to input_styles, and will remove the
dependency requirements from test cases with `ModulusRepresentation.OPT_RED`

As a result it is reducing testing input duplication.

Signed-off-by: Minos Galanakis <minos.galanakis@arm.com>

This patch adjusts the test generating method to calculate all possible combinations for
(modulo, input, limb_sizes, representation).

Signed-off-by: Minos Galanakis <minos.galanakis@arm.com>

This patch adds the default representation attribute through a
setter() method in `BignumModRawConvertRep()`

It also adds standard common template properties:
    symbol = ""
    input_style = "arch_split"
    arity = 1

Signed-off-by: Minos Galanakis <minos.galanakis@arm.com>

Signed-off-by: Minos Galanakis <minos.galanakis@arm.com>

Signed-off-by: Minos Galanakis <minos.galanakis@arm.com>

Signed-off-by: Gabor Mezei <gabor.mezei@arm.com>

Hide check_test_cases warnings on the CI

The Montgomery representation depends on the limb size. So the
representation conversion test cases need separate 64-bit and 32-bit cases
when the representation is Montgomery.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>

The code had an earlier version. Update to the new seed that
mpi_core_random_basic has moved to.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>

mbedtls_mpi_mod_raw_random() and mbedtls_mpi_mod_random() were producing
output in the Montgomery representation, instead of obeying the
representation chosen in the modulus structure. Fix this.

Duplicate the test cases for mod-random output to have separate test cases
for each representation.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>

Call mbedtls_mpi_mod_raw_canonical_to_modulus_rep instead of assuming that
anything that isn't MBEDTLS_MPI_MOD_REP_MONTGOMERY is canonical.

mbedtls_mpi_mod_write should get the same treatment, but I'm holding off
until https://github.com/Mbed-TLS/mbedtls/issues/6679

 is done.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>

Test cases will be generated automatically by a subsequent commit.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>

Add a class for modulus representations (mbedtls_mpi_mod_rep_selector).

Add a method to convert a number to any representation.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>

With the default input style (which is "variable"), fill all bignum test
case arguments to the same width as the modulus.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>

This wasn't reported by pylint due to a pylint bug (apparently):
`pylint A B` doesn't complain about an unused import in B if A happens to
import and use the same module, which happens to be the case when we run
pylint on the CI.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>

Signed-off-by: Gabor Mezei <gabor.mezei@arm.com>

Signed-off-by: Gabor Mezei <gabor.mezei@arm.com>