bignum_mod_raw: Refactored Montgomery conversion functions
This patch updates the `mbedtls_mpi_mod_raw_conv_xx()` methods
as follows:
* Renamed for simplicity: conv_fwd -> from_mont_rep, conv_inv -> to_mont_rep.
* Uncoupled the dependency on the legaly bignum interface.
* `mbedtls_mpi` is no longer used for temporary buffer allocation.
Signed-off-by: Minos Galanakis <minos.galanakis@arm.com>
diff --git a/library/bignum_mod_raw.h b/library/bignum_mod_raw.h
index 38415f4..f738e91 100644
--- a/library/bignum_mod_raw.h
+++ b/library/bignum_mod_raw.h
@@ -163,25 +163,29 @@
/* END MERGE SLOT 6 */
/* BEGIN MERGE SLOT 7 */
-/** Convert from internal to public (little endian) data presentation
+/** Convert an MPI into Montgomery form.
*
* \param X The address of the MPI.
- * \param m The address of a modulus.
+ * Must have the same number of limbs as \p m.
+ * \param m The address of the modulus, which gives the size of
+ * the base `R` = 2^(biL*m->limbs).
*
* \return \c 0 if successful.
*/
-int mbedtls_mpi_mod_raw_conv_inv( mbedtls_mpi_uint *X,
- const mbedtls_mpi_mod_modulus *modulus );
+int mbedtls_mpi_mod_raw_to_mont_rep( mbedtls_mpi_uint *X,
+ const mbedtls_mpi_mod_modulus *m );
-/** Convert from public (little endian) to internal data presentation.
+/** Convert an MPI back from Montgomery representation.
*
* \param X The address of the MPI.
- * \param m The address of a modulus.
+ * Must have the same number of limbs as \p m.
+ * \param m The address of the modulus, which gives the size of
+ * the base `R`= 2^(biL*m->limbs).
*
* \return \c 0 if successful.
*/
-int mbedtls_mpi_mod_raw_conv_fwd( mbedtls_mpi_uint *X,
- const mbedtls_mpi_mod_modulus *modulus );
+int mbedtls_mpi_mod_raw_from_mont_rep( mbedtls_mpi_uint *X,
+ const mbedtls_mpi_mod_modulus *m );
/* END MERGE SLOT 7 */
/* BEGIN MERGE SLOT 8 */