Use mbedtls_xor in TLS messaging layer
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
diff --git a/library/ssl_msg.c b/library/ssl_msg.c
index dbc6391..085233c 100644
--- a/library/ssl_msg.c
+++ b/library/ssl_msg.c
@@ -511,15 +511,12 @@
unsigned char const *dynamic_iv,
size_t dynamic_iv_len )
{
- size_t i;
-
/* Start with Fixed IV || 0 */
memset( dst_iv, 0, dst_iv_len );
memcpy( dst_iv, fixed_iv, fixed_iv_len );
dst_iv += dst_iv_len - dynamic_iv_len;
- for( i = 0; i < dynamic_iv_len; i++ )
- dst_iv[i] ^= dynamic_iv[i];
+ mbedtls_xor( dst_iv, dst_iv, dynamic_iv, dynamic_iv_len );
}
#endif /* MBEDTLS_GCM_C || MBEDTLS_CCM_C || MBEDTLS_CHACHAPOLY_C */