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/cipher.c b/library/cipher.c
index 7369f48..1b2e569 100644
--- a/library/cipher.c
+++ b/library/cipher.c
@@ -33,6 +33,7 @@
#include "mbedtls/cipher.h"
#include "mbedtls/cipher_internal.h"
+#include "mbedtls/utils.h"
#include <stdlib.h>
#include <string.h>
@@ -60,11 +61,6 @@
#define MBEDTLS_CIPHER_MODE_STREAM
#endif
-/* Implementation that should never be optimized out by the compiler */
-static void mbedtls_zeroize( void *v, size_t n ) {
- volatile unsigned char *p = (unsigned char*)v; while( n-- ) *p++ = 0;
-}
-
static int supported_init = 0;
const int *mbedtls_cipher_list( void )