altos: Nothing in altos uses AES decryption, so don't compile it

[fw/altos] / src / aes / ao_aes.c

diff --git a/src/aes/ao_aes.c b/src/aes/ao_aes.c
index 4977aaf81158408aff72e02ad5641a22de919f83..52463f5d3b2f202be30b49b19d35f7601b3518c5 100644 (file)
--- a/src/aes/ao_aes.c
+++ b/src/aes/ao_aes.c
@@ -11,7 +11,9 @@
  *          Vincent Rijmen
  */
 
+#ifndef AO_AES_TEST
 #include <ao.h>
+#endif
 #include <ao_aes.h>
 #include "ao_aes_int.h"
 
@@ -193,6 +195,7 @@ static inline void xAddInvMix(word32 res[MAXBC], word32 a[MAXBC],
 
 #endif                         /* code included for reference */
 
+static
 int xrijndaelKeySched(word32 key[], int keyBits, int blockBits,
                      roundkey *rkk)
 {
@@ -280,6 +283,7 @@ int xrijndaelKeySched(word32 key[], int keyBits, int blockBits,
 
 /* Encryption of one block. */
 
+static
 void xrijndaelEncrypt(word32 block[], roundkey *rkk)
 {
   word32 block2[MAXBC];                /* hold intermediate result */
@@ -306,6 +310,11 @@ void xrijndaelEncrypt(word32 block[], roundkey *rkk)
   xKeyAddition(block, block2, rp, BC);
 }
 
+#if NOTUSED
+/* We don't actually need this in AltOS, so don't bother including it */
+
+/* Decryption of one block. */
+static
 void xrijndaelDecrypt(word32 block[], roundkey *rkk)
 {
   word32 block2[MAXBC];                /* hold intermediate result */
@@ -347,8 +356,10 @@ void xrijndaelDecrypt(word32 block[], roundkey *rkk)
 
   xKeyAddition(block, block, rp, BC);
 }
+#endif
 
 uint8_t ao_aes_mutex;
+static uint8_t key[16];
 static roundkey        rkk;
 
 static uint8_t iv[16];
@@ -362,7 +373,8 @@ ao_aes_set_mode(enum ao_aes_mode mode)
 void
 ao_aes_set_key(__xdata uint8_t *in)
 {
-       xrijndaelKeySched((word32 *) in, 128, 128, &rkk);
+       memcpy(key, in, 16);
+       xrijndaelKeySched((word32 *) key, 128, 128, &rkk);
 }
 
 void