lilliput-ae-reference-implementation

commit 5c838d9c65fb9b0aa3a0181ebc6fa5b91e345220
parent 8263eec436189cba96f987e25098dc3abc7e60c5
Author: Kévin Le Gouguec <kevin.legouguec@airbus.com>
Date:   Mon,  1 Jul 2019 17:20:21 +0200

Mise à jour de l'implémentation tweakeyloop

Diffstat:
M
src/add_tweakeyloop/multiplications.h
 | 
11
+++++++++++

1 file changed, 11 insertions(+), 0 deletions(-)
diff --git a/src/add_tweakeyloop/multiplications.h b/src/add_tweakeyloop/multiplications.h
@@ -55,6 +55,17 @@ static void _multiply_M3(const uint8_t x[LANE_BYTES], uint8_t y[LANE_BYTES])
     _multiply_M(M2_x, y);
 }
 
+static void _multiply_M4(const uint8_t x[LANE_BYTES], uint8_t y[LANE_BYTES])
+{
+    uint8_t M_x[LANE_BYTES];
+    uint8_t M2_x[LANE_BYTES];
+    uint8_t M3_x[LANE_BYTES];
+    _multiply_M(x, M_x);
+    _multiply_M(M_x, M2_x);
+    _multiply_M(M2_x, M3_x);
+    _multiply_M(M3_x, y);
+}
+
 static void _multiply_MR(const uint8_t x[LANE_BYTES], uint8_t y[LANE_BYTES])
 {
     y[0] = x[1];