make process changed and modularised

[avr-crypto-lib.git] / shabea.c

diff --git a/shabea.c b/shabea.c
index 844788a00defbe64c5a08ae6fb1d5c624e83e9f2..e786139ce75692ad56e98a2cf84ba375d48fcfaf 100644 (file)
--- a/shabea.c
+++ b/shabea.c
@@ -39,13 +39,12 @@ void memxor(uint8_t * dest, uint8_t * src, uint8_t length){
 #define R ((uint8_t*)block+16)
 void shabea256(void * block, void * key, uint16_t keysize, uint8_t enc, uint8_t rounds){
        int8_t r;               /**/
-       uint8_t *tb;    /**/
+       uint8_t tb[HALFSIZEB+2+(keysize+7)/8];  /**/
        uint16_t kbs;   /* bytes used for the key / temporary block */
        sha256_hash_t hash;
        
        r = (enc?0:(rounds-1));
        kbs = (keysize+7)/8;
-       tb = malloc(HALFSIZEB+2+kbs);
        memcpy(tb+HALFSIZEB+2, key, kbs); /* copy key to temporary block */
        tb[HALFSIZEB+0] = 0;    /* set round counter high value to zero */
        
@@ -63,7 +62,6 @@ void shabea256(void * block, void * key, uint16_t keysize, uint8_t enc, uint8_t
                        memxor(L, hash, HALFSIZE);      
                }
        }
-       free(tb);
 }