altos: AES code was storing bytes in an int array

The only operations using these values are logic using bytes, not
arithmetic, so shrinking the size of the elements should have no
effect on operation.

This saves space *and* eliminates a type conversion warning from
-Wconversion.

Signed-off-by: Keith Packard <keithp@keithp.com>

diff --git a/src/aes/ao_aes_tables.c b/src/aes/ao_aes_tables.c
index 1bca227c1b9d92c680f36fafb783b12445daa87d..311b7b4e158a25121263f451760280fdadbf503a 100644 (file)
--- a/src/aes/ao_aes_tables.c
+++ b/src/aes/ao_aes_tables.c
@@ -716,7 +716,7 @@ const word8x4 M1[4][256] = {
  },
 };
 
-const int xrcon[30] = {
+const word8 xrcon[30] = {
   0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x1b, 0x36, 
   0x6c, 0xd8, 0xab, 0x4d, 0x9a, 0x2f, 0x5e, 0xbc, 0x63, 0xc6, 
   0x97, 0x35, 0x6a, 0xd4, 0xb3, 0x7d, 0xfa, 0xef, 0xc5, 0x91, 

diff --git a/src/aes/ao_aes_tables.h b/src/aes/ao_aes_tables.h
index 73bcf3fbbab748dd6183f60662f22497cea6c969..cc005bfd90b657837c08077e990ae3af351f5f83 100644 (file)
--- a/src/aes/ao_aes_tables.h
+++ b/src/aes/ao_aes_tables.h
@@ -4,7 +4,7 @@
 
 extern const word8x4 M0[4][256];
 extern const word8x4 M1[4][256];
-extern const int xrcon[30];
+extern const word8 xrcon[30];
 extern const word8 xS[256];
 extern const word8 xSi[256];