Remove individual copies of mbedtls_zeroize()
This commit removes all the static occurrencies of the function
mbedtls_zeroize() in each of the individual .c modules. Instead the
function has been moved to utils.h that is included in each of the
modules.
diff --git a/library/md2.c b/library/md2.c
index b88aa40..37e35dc 100644
--- a/library/md2.c
+++ b/library/md2.c
@@ -34,6 +34,7 @@
#if defined(MBEDTLS_MD2_C)
#include "mbedtls/md2.h"
+#include "mbedtls/utils.h"
#include <string.h>
@@ -48,11 +49,6 @@
#if !defined(MBEDTLS_MD2_ALT)
-/* Implementation that should never be optimized out by the compiler */
-static void mbedtls_zeroize( void *v, size_t n ) {
- volatile unsigned char *p = v; while( n-- ) *p++ = 0;
-}
-
static const unsigned char PI_SUBST[256] =
{
0x29, 0x2E, 0x43, 0xC9, 0xA2, 0xD8, 0x7C, 0x01, 0x3D, 0x36,