ReactOS 0.4.16-dev-297-gc569aee
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#include "mbedtls/config.h"
#include "mbedtls/platform_util.h"
#include "mbedtls/platform.h"
#include "mbedtls/threading.h"
#include <stddef.h>
#include <string.h>
Go to the source code of this file.
Macros | |
#define | _POSIX_C_SOURCE 200112L |
Functions | |
void | mbedtls_platform_zeroize (void *buf, size_t len) |
Securely zeroize a buffer. | |
Variables | |
static void *(*constvolatile | memset_func )(void *, int, size_t) = memset |
Definition at line 53 of file platform_util.c.
Securely zeroize a buffer.
The function is meant to wipe the data contained in a buffer so that it can no longer be recovered even if the program memory is later compromised. Call this function on sensitive data stored on the stack before returning from a function, and on sensitive data stored on the heap before freeing the heap object. It is extremely difficult to guarantee that calls to mbedtls_platform_zeroize() are not removed by aggressive compiler optimizations in a portable way. For this reason, Mbed TLS provides the configuration option MBEDTLS_PLATFORM_ZEROIZE_ALT, which allows users to configure mbedtls_platform_zeroize() to use a suitable implementation for their platform and needs
buf | Buffer to be zeroized |
len | Length of the buffer in bytes |
Definition at line 98 of file platform_util.c.