fixed bug in shabea

memxor.c

@@ -0,0 +1,8 @@
+#include <stdint.h>
+
+void memxor(void * dest, const void * src, uint16_t n){
+  while(n--){
+    ((uint8_t*)dest)[n] ^= ((uint8_t*)src)[n];
+  }
+}
+

memxor.h

@@ -0,0 +1,7 @@
+#ifndef MEMXOR_H_
+#define MEMXOR_H_
+#include <stdint.h>
+
+void memxor(void * dest, const void * src, uint16_t n);
+
+#endif

mkfiles/shabea.mk

@@ -7,7 +7,7 @@ BLOCK_CIPHERS += $(ALGO_NAME)
 $(ALGO_NAME)_OBJ      := shabea.o sha256-asm.o
 $(ALGO_NAME)_TEST_BIN := main-shabea-test.o debug.o uart.o serial-tools.o \
                          shabea.o sha256-asm.o nessie_bc_test.o \
-			 nessie_common.o cli.o performance_test.o
+			 nessie_common.o cli.o performance_test.o memxor.o
 $(ALGO_NAME)_NESSIE_TEST      := "nessie"
 $(ALGO_NAME)_PEROFRMANCE_TEST := "performance"
 

shabea.c

@@ -35,14 +35,8 @@
 #include "config.h"
 #include "uart.h"
 #include "debug.h"
-/*
- * 
- */
-void memxor(uint8_t * dest, uint8_t * src, uint8_t length){
-	while(length--){
-		*dest++ ^= *src++;
-	}
-} 
+#include "memxor.h"
+
 
 /*
  * SHABEA256-n
@@ -77,7 +71,7 @@ void shabea256(void * block, void * key, uint16_t keysize_b, uint8_t enc, uint8_
 			memcpy(R, hash, HALFSIZEB);
 		} else {
 			/* no swap */
-			memxor(L, hash, HALFSIZE);	
+			memxor(L, hash, HALFSIZEB);	
 		}
 	}
 }