<div dir="ltr"><div class="gmail_extra"><br><div class="gmail_quote">On 22 June 2017 at 09:23, Ovidiu Panait <span dir="ltr"><<a href="mailto:ovpanait@gmail.com" target="_blank">ovpanait@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div id=":2nz" class="a3s aXjCH m15ccee8c4367e5c9">In Libgcrypt before 1.7.7, an attacker who learns the EdDSA session key<br>
(from side-channel observation during the signing process) can easily<br>
recover the long-term secret key. 1.7.7 makes a cipher/ecc-eddsa.c change<br>
to store this session key in secure memory, to ensure that constant-time<br>
point operations are used in the MPI library.<br></div></blockquote></div><br>An upgrade to 1.7.7 is preferred as we're not upgrade-frozen right now.</div><div class="gmail_extra"><br></div><div class="gmail_extra">Ross</div></div>