tls: code shrink

function                                             old     new   delta
curve25519                                           881     832     -49

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 11 insertions, 17 deletions

diff --git a/networking/tls_fe.c b/networking/tls_fe.c
index 10971bbff..f810e112a 100644
--- a/networking/tls_fe.c
+++ b/networking/tls_fe.c
@@ -383,12 +383,10 @@ static void fe_inv__distinct(byte *r, const byte *x)
          * to avoid copying temporaries.
          */
 
-        /* 1 1 */
-        fe_mul__distinct(s, x, x);
-        fe_mul__distinct(r, s, x);
+        lm_copy(r, x);
 
-        /* 1 x 248 */
-        for (i = 0; i < 248; i++) {
+        /* 1, 1 x 249 */
+        for (i = 0; i < 249; i++) {
                 fe_mul__distinct(s, r, r);
                 fe_mul__distinct(r, s, x);
         }
@@ -403,13 +401,11 @@ static void fe_inv__distinct(byte *r, const byte *x)
         /* 0 */
         fe_mul__distinct(r, s, s);
 
-        /* 1 */
-        fe_mul__distinct(s, r, r);
-        fe_mul__distinct(r, s, x);
-
-        /* 1 */
-        fe_mul__distinct(s, r, r);
-        fe_mul__distinct(r, s, x);
+        /* 1, 1 */
+        for (i = 0; i < 2; i++) {
+                fe_mul__distinct(s, r, r);
+                fe_mul__distinct(r, s, x);
+        }
 }
 
 #if 0 //UNUSED
@@ -435,12 +431,10 @@ static void exp2523(byte *r, const byte *x, byte *s)
          *     111111... 01
          */
 
-        /* 1 1 */
-        fe_mul__distinct(r, x, x);
-        fe_mul__distinct(s, r, x);
+        lm_copy(s, x);
 
-        /* 1 x 248 */
-        for (i = 0; i < 248; i++) {
+        /* 1, 1 x 249 */
+        for (i = 0; i < 249; i++) {
                 fe_mul__distinct(r, s, s);
                 fe_mul__distinct(s, r, x);
         }