Add generated tests for mod_raw_mul
Signed-off-by: Gabor Mezei <gabor.mezei@arm.com>
diff --git a/scripts/mbedtls_dev/bignum_mod_raw.py b/scripts/mbedtls_dev/bignum_mod_raw.py
index 6fc4c91..29e3339 100644
--- a/scripts/mbedtls_dev/bignum_mod_raw.py
+++ b/scripts/mbedtls_dev/bignum_mod_raw.py
@@ -50,6 +50,25 @@
result = (self.int_a - self.int_b) % self.int_n
return [self.format_result(result)]
+class BignumModRawMul(bignum_common.ModOperationCommon,
+ BignumModRawTarget):
+ """Test cases for bignum mpi_mod_raw_mul()."""
+ symbol = "*"
+ test_function = "mpi_mod_raw_mul"
+ test_name = "mbedtls_mpi_mod_raw_mul"
+ input_style = "arch_split"
+ arity = 2
+
+ def arguments(self) -> List[str]:
+ return [bignum_common.quote_str(n) for n in [self.arg_a,
+ self.arg_b,
+ self.arg_n]
+ ] + self.result()
+
+ def result(self) -> List[str]:
+ result = (self.int_a * self.int_b) % self.int_n
+ return [self.format_result(result)]
+
# END MERGE SLOT 2
# BEGIN MERGE SLOT 3
diff --git a/tests/suites/test_suite_bignum_mod_raw.function b/tests/suites/test_suite_bignum_mod_raw.function
index 83e1f54..cf8643d 100644
--- a/tests/suites/test_suite_bignum_mod_raw.function
+++ b/tests/suites/test_suite_bignum_mod_raw.function
@@ -345,6 +345,113 @@
}
/* END_CASE */
+/* BEGIN_CASE */
+void mpi_mod_raw_mul( char * input_A,
+ char * input_B,
+ char * input_N,
+ char * result )
+{
+ mbedtls_mpi_uint *A = NULL;
+ mbedtls_mpi_uint *B = NULL;
+ mbedtls_mpi_uint *N = NULL;
+ mbedtls_mpi_uint *X = NULL;
+ mbedtls_mpi_uint *R = NULL;
+ mbedtls_mpi_uint *T = NULL;
+ size_t limbs_A;
+ size_t limbs_B;
+ size_t limbs_N;
+ size_t limbs_R;
+
+ mbedtls_mpi_mod_modulus m;
+ mbedtls_mpi_mod_modulus_init( &m );
+
+ TEST_EQUAL( mbedtls_test_read_mpi_core( &A, &limbs_A, input_A ), 0 );
+ TEST_EQUAL( mbedtls_test_read_mpi_core( &B, &limbs_B, input_B ), 0 );
+ TEST_EQUAL( mbedtls_test_read_mpi_core( &N, &limbs_N, input_N ), 0 );
+ TEST_EQUAL( mbedtls_test_read_mpi_core( &R, &limbs_R, result ), 0 );
+
+ const size_t limbs = limbs_N;
+ const size_t bytes = limbs * sizeof( mbedtls_mpi_uint );
+
+ TEST_EQUAL( limbs_A, limbs );
+ TEST_EQUAL( limbs_B, limbs );
+ TEST_EQUAL( limbs_R, limbs );
+
+ ASSERT_ALLOC( X, limbs );
+
+ TEST_EQUAL( mbedtls_mpi_mod_modulus_setup(
+ &m, N, limbs,
+ MBEDTLS_MPI_MOD_REP_MONTGOMERY ), 0 );
+
+ const size_t limbs_T = limbs * 2 + 1;
+ ASSERT_ALLOC( T, limbs_T );
+
+ /* Convert to Montgomery representation */
+ TEST_EQUAL( mbedtls_mpi_mod_raw_to_mont_rep( A, &m ), 0 );
+ TEST_EQUAL( mbedtls_mpi_mod_raw_to_mont_rep( B, &m ), 0 );
+
+ mbedtls_mpi_mod_raw_mul( X, A, B, &m, T );
+ TEST_EQUAL( mbedtls_mpi_mod_raw_from_mont_rep( X, &m ), 0 );
+ ASSERT_COMPARE( X, bytes, R, bytes );
+
+ /* alias X to A */
+ memcpy( X, A, bytes );
+ mbedtls_mpi_mod_raw_mul( X, X, B, &m, T );
+ TEST_EQUAL( mbedtls_mpi_mod_raw_from_mont_rep( X, &m ), 0 );
+ ASSERT_COMPARE( X, bytes, R, bytes );
+
+ /* alias X to B */
+ memcpy( X, B, bytes );
+ mbedtls_mpi_mod_raw_mul( X, A, X, &m, T );
+ TEST_EQUAL( mbedtls_mpi_mod_raw_from_mont_rep( X, &m ), 0 );
+ ASSERT_COMPARE( X, bytes, R, bytes );
+
+ /* A == B: alias A and B */
+ if( memcmp( A, B, bytes ) == 0 )
+ {
+ mbedtls_mpi_mod_raw_mul( X, A, A, &m, T );
+ TEST_EQUAL( mbedtls_mpi_mod_raw_from_mont_rep( X, &m ), 0 );
+ ASSERT_COMPARE( X, bytes, R, bytes );
+
+ /* X, A, B all aliased together */
+ memcpy( X, A, bytes );
+ mbedtls_mpi_mod_raw_mul( X, X, X, &m, T );
+ TEST_EQUAL( mbedtls_mpi_mod_raw_from_mont_rep( X, &m ), 0 );
+ ASSERT_COMPARE( X, bytes, R, bytes );
+ }
+
+ /* A != B: test B * A */
+ else
+ {
+ mbedtls_mpi_mod_raw_mul( X, B, A, &m, T );
+ TEST_EQUAL( mbedtls_mpi_mod_raw_from_mont_rep( X, &m ), 0 );
+ ASSERT_COMPARE( X, bytes, R, bytes );
+
+ /* B * A: alias X to A */
+ memcpy( X, A, bytes );
+ mbedtls_mpi_mod_raw_mul( X, B, X, &m, T );
+ TEST_EQUAL( mbedtls_mpi_mod_raw_from_mont_rep( X, &m ), 0 );
+ ASSERT_COMPARE( X, bytes, R, bytes );
+
+ /* B + A: alias X to B */
+ memcpy( X, B, bytes );
+ mbedtls_mpi_mod_raw_mul( X, X, A, &m, T );
+ TEST_EQUAL( mbedtls_mpi_mod_raw_from_mont_rep( X, &m ), 0 );
+ ASSERT_COMPARE( X, bytes, R, bytes );
+ }
+
+exit:
+ mbedtls_free( A );
+ mbedtls_free( B );
+ mbedtls_free( X );
+ mbedtls_free( R );
+ mbedtls_free( T );
+
+ mbedtls_mpi_mod_modulus_free( &m );
+ mbedtls_free( N );
+}
+/* END_CASE */
+
/* END MERGE SLOT 2 */
/* BEGIN MERGE SLOT 3 */