3rdparty: Updated comments for Everest x25519
diff --git a/3rdparty/everest/library/x25519.c b/3rdparty/everest/library/x25519.c
index 7660b64..e5ec2e8 100644
--- a/3rdparty/everest/library/x25519.c
+++ b/3rdparty/everest/library/x25519.c
@@ -126,7 +126,8 @@
int( *f_rng )(void *, unsigned char *, size_t),
void *p_rng )
{
- /* CMW: Is it okay that f_rng, p_rng are not used? */
+ /* f_rng and p_rng are not used here because this implementation does not
+ need blinding since it has constant trace. */
(( void )f_rng);
(( void )p_rng);