yuzu-emu/mbedtls
1
0
Fork 0
mirror of https://github.com/yuzu-emu/mbedtls.git synced 2024-11-27 03:44:24 +01:00
Code Issues Packages Projects Releases Wiki Activity

Zeroize tmp buf in mbedtls_mpi_fill_random()

Browse Source
This commit is contained in:
Andres Amaya Garcia 2017-06-26 11:20:02 +01:00
parent 79a2e7ef06
commit 7351e12410
1 changed files with 6 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
library/bignum.c
View File

@ -63,6 +63,10 @@ static void mbedtls_mpi_zeroize( mbedtls_mpi_uint *v, size_t n ) {
volatile mbedtls_mpi_uint *p = v; while( n-- ) *p++ = 0;
}
static void mbedtls_zeroize( void *v, size_t n ) {
volatile unsigned char *p = v; while( n-- ) *p++ = 0;
}
#define ciL (sizeof(mbedtls_mpi_uint)) /* chars in limb */
#define biL (ciL << 3) /* bits in limb */
#define biH (ciL << 2) /* half limb size */
@ -1882,6 +1886,8 @@ int mbedtls_mpi_fill_random( mbedtls_mpi *X, size_t size,
MBEDTLS_MPI_CHK( mbedtls_mpi_read_binary( X, buf, size ) );
cleanup:
mbedtls_zeroize( buf, sizeof( buf ) );
return( ret );
}