Zeroize internal buffers and variables in MD hashes
Zeroising of local buffers and variables which are used for calculations in
mbedtls_internal_md*_process() and mbedtls_internal_ripemd160_process()
functions to erase sensitive data from memory.
Checked all function for possible missing zeroisation in MD.
Signed-off-by: gabor-mezei-arm <gabor.mezei@arm.com>
diff --git a/library/md2.c b/library/md2.c
index cbdaaab..fdcb630 100644
--- a/library/md2.c
+++ b/library/md2.c
@@ -177,6 +177,9 @@
t = ctx->cksum[i];
}
+ /* Zeroise variables to clear sensitive data from memory. */
+ mbedtls_platform_zeroize( &t, sizeof( t ) );
+
return( 0 );
}