doc: about commit 23b72901f8a5ba9a78485b235c7a917fbc8faae0
Together with 88e1358962e902ff1cbec8d53ba3eee46407851a, it
could be an effective contermeasure to some chosen cipher
text attacks.
CVE-id: CVE-2015-7511
Thanks to Daniel Genkin, Lev Pachmanov, Itamar Pipman, and Eran
Tromer. http://www.cs.tau.ac.IL/~tromer/ecdh/
- Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>