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/ctr_drbg.c b/library/ctr_drbg.c
index ff532a0..ae6d62f 100644
--- a/library/ctr_drbg.c
+++ b/library/ctr_drbg.c
@@ -33,6 +33,7 @@
#if defined(MBEDTLS_CTR_DRBG_C)
#include "mbedtls/ctr_drbg.h"
+#include "mbedtls/utils.h"
#include <string.h>
@@ -49,11 +50,6 @@
#endif /* MBEDTLS_PLATFORM_C */
#endif /* MBEDTLS_SELF_TEST */
-/* 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;
-}
-
/*
* CTR_DRBG context initialization
*/