commit ec00b500b52a4a8cbe398a76efa20bcbdad6ffea
author Minos Galanakis <minos.galanakis@arm.com> Tue May 23 17:31:01 2023 +0100
committer Minos Galanakis <minos.galanakis@arm.com> Tue May 23 17:31:01 2023 +0100
tree 3df3633bd2b016dc7c14cc1a33e8061e8b89cdcd
parent d6beda7af973f2d8fa6b0ec6eb903f3ad3176df5

ecp_curves: Adjusted input checking for `ecp_mod_p255`.

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

library/ecp_curves.c

diff --git a/library/ecp_curves.c b/library/ecp_curves.c
index c9868f3..6192f6a 100644
--- a/library/ecp_curves.c
+++ b/library/ecp_curves.c
@@ -5432,9 +5432,7 @@
 int mbedtls_ecp_mod_p255_raw(mbedtls_mpi_uint *X, size_t X_Limbs)
 {
 
-    if (X_Limbs > 2*P255_WIDTH) {
-        X_Limbs = 2*P255_WIDTH;
-    } else if (X_Limbs < P255_WIDTH) {
+    if (X_Limbs != 2 * P255_WIDTH) {
         return MBEDTLS_ERR_ECP_BAD_INPUT_DATA;
     }