commit 5c86b1775a5fdd1ca2ed56050c7b0fe1618ecc23
author Yanray Wang <yanray.wang@arm.com> Mon Jun 26 16:54:52 2023 +0800
committer Yanray Wang <yanray.wang@arm.com> Tue Jun 27 18:18:06 2023 +0800
tree c14f7edee2bfc5eff304ab1e9345b751a3b74151
parent 717a83164e28fc7c1c07c5c22264ac257373a27f

aes.c: use uint8_t for array of pow and log to save RAM

Signed-off-by: Yanray Wang <yanray.wang@arm.com>

library/aes.c

diff --git a/library/aes.c b/library/aes.c
index 0a61d1b..a90735a 100644
--- a/library/aes.c
+++ b/library/aes.c
@@ -365,15 +365,15 @@
 static void aes_gen_tables(void)
 {
     int i, x, y, z;
-    int pow[256];
-    int log[256];
+    uint8_t pow[256];
+    uint8_t log[256];
 
     /*
      * compute pow and log tables over GF(2^8)
      */
     for (i = 0, x = 1; i < 256; i++) {
-        pow[i] = x;
-        log[x] = i;
+        pow[i] = (uint8_t) x;
+        log[x] = (uint8_t) i;
         x = MBEDTLS_BYTE_0(x ^ XTIME(x));
     }