eden-emu/mbedtls
20
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Introduce polarssl_zeroize() instead of memset() for zeroization

Browse source
This commit is contained in:
Paul Bakker 2014-06-13 17:20:13 +02:00
parent bbcb1ce703
commit 3461772559
36 changed files with 325 additions and 129 deletions
Download patch file Download diff file Expand all files Collapse all files

7
library/memory_buffer_alloc.c
View file

@ -52,6 +52,11 @@
#define polarssl_fprintf fprintf
#endif
/* Implementation that should never be optimized out by the compiler */
static void polarssl_zeroize( void *v, size_t n ) {
volatile unsigned char *p = v; while( n-- ) *p++ = 0;
}
#define MAGIC1 0xFF00AA55
#define MAGIC2 0xEE119966
#define MAX_BT 20
@ -578,7 +583,7 @@ void memory_buffer_alloc_free()
#if defined(POLARSSL_THREADING_C)
polarssl_mutex_free( &heap.mutex );
#endif
memset( &heap, 0, sizeof(buffer_alloc_ctx) );
polarssl_zeroize( &heap, sizeof(buffer_alloc_ctx) );
}
#endif /* POLARSSL_MEMORY_BUFFER_ALLOC_C */